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Subject: [Bug 240831] zfs: Panic during snapshot on 12.1-STABLE r352648
(solaris assert: txg_list_empty)
Date: Sun, 29 Sep 2019 07:15:53 +0000
X-Bugzilla-Reason: AssignedTo
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X-Bugzilla-Version: 12.1-RELEASE
X-Bugzilla-Keywords: crash, needs-qa
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X-Bugzilla-Who: hlh@restart.be
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D240831
--- Comment #12 from hlh@restart.be ---
kgdb) p *dp
$1 =3D {dp_spa =3D 0xfffffe004ebe8000, dp_meta_objset =3D 0xfffff80008af340=
0,
dp_root_dir =3D 0xfffff80004e75c00,=20
dp_mos_dir =3D 0xfffff80004e75800, dp_free_dir =3D 0xfffff80004a68c00,
dp_leak_dir =3D 0x0, dp_origin_snap =3D 0xfffff80004a6d000,=20
dp_root_dir_obj =3D 32, dp_vnrele_taskq =3D 0xfffff80004bc7c20, dp_meta_r=
ootbp =3D
{blk_dva =3D {{dva_word =3D {8, 447810216}}, {
dva_word =3D {8, 738256336}}, {dva_word =3D {8, 1208077200}}}, blk_=
prop =3D
9226475966770118659, blk_pad =3D {0, 0},=20
blk_phys_birth =3D 0, blk_birth =3D 2864862, blk_fill =3D 2024, blk_cks=
um =3D
{zc_word =3D {16400598605, 7775230236364,=20
1847786449934068, 293504487061283720}}}, dp_tmp_userrefs_obj =3D 0,
dp_free_bpobj =3D {bpo_lock =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd0df4 <.L.str.19+1> "bpo->bpo_lock", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, bpo_os =3D 0xfffff80008af3400, bpo_object =3D 41, bpo=
_epb =3D
1024, bpo_havecomp =3D 1 '\001',=20
bpo_havesubobj =3D 1 '\001', bpo_phys =3D 0xfffff80008977a00, bpo_dbuf =
=3D
0xfffff8000845d420, bpo_cached_dbuf =3D 0x0},=20
dp_bptree_obj =3D 0, dp_empty_bpobj =3D 20, dp_obsolete_bpobj =3D {bpo_lo=
ck =3D
{lock_object =3D {lo_name =3D 0x0, lo_flags =3D 0,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 0}, bpo_os =3D 0x0,=
bpo_object
=3D 0, bpo_epb =3D 0, bpo_havecomp =3D 0 '\000',=20
bpo_havesubobj =3D 0 '\000', bpo_phys =3D 0x0, bpo_dbuf =3D 0x0, bpo_ca=
ched_dbuf
=3D 0x0}, dp_scan =3D 0xfffff80004e73c00, dp_lock =3D {
lock_object =3D {lo_name =3D 0xffffffff81be58bf <.L.str.71+1> "dp->dp_l=
ock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, dp_spaceavail_cv =3D {cv_description =3D 0xffffffff81bb=
59a8
<.L.str.72+1> "dp->dp_spaceavail_cv", cv_waiters =3D 0},=20
dp_dirty_pertxg =3D {0, 0, 0, 0}, dp_dirty_total =3D 0, dp_long_free_dirt=
y_pertxg
=3D {0, 0, 0, 0}, dp_mos_used_delta =3D 0,=20
dp_mos_compressed_delta =3D 0, dp_mos_uncompressed_delta =3D 0, dp_last_w=
akeup =3D
0, dp_tx =3D {tx_cpu =3D 0xfffff800033cf800,=20
tx_sync_lock =3D {lock_object =3D {lo_name =3D 0xffffffff81bd38ff <.L.s=
tr.7+1>
"tx->tx_sync_lock", lo_flags =3D 577830912,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, tx_open_txg =3D=
2864865,
tx_quiescing_txg =3D 0, tx_quiesced_txg =3D 0,=20
tx_syncing_txg =3D 2864864, tx_synced_txg =3D 2864863, tx_open_time =3D
5149924275093, tx_sync_txg_waiting =3D 2864864,=20
tx_quiesce_txg_waiting =3D 2864865, tx_sync_more_cv =3D {cv_description=
=3D
0xffffffff81bdade6 <.L.str.8+1> "tx->tx_sync_more_cv",=20
cv_waiters =3D 0}, tx_sync_done_cv =3D {cv_description =3D 0xffffffff=
81beb698
<.L.str.9+1> "tx->tx_sync_done_cv", cv_waiters =3D 1},=20
tx_quiesce_more_cv =3D {cv_description =3D 0xffffffff81bb6249 <.L.str.1=
0+1>
"tx->tx_quiesce_more_cv", cv_waiters =3D 1},=20
tx_quiesce_done_cv =3D {cv_description =3D 0xffffffff81bd53c7 <.L.str.1=
1+1>
"tx->tx_quiesce_done_cv", cv_waiters =3D 0},=20
tx_timeout_cv =3D {cv_description =3D 0x0, cv_waiters =3D 0}, tx_exit_c=
v =3D {
cv_description =3D 0xffffffff81bc31f1 <.L.str.12+1> "tx->tx_exit_cv",
cv_waiters =3D 0}, tx_threads =3D 2 '\002',=20
tx_exiting =3D 0 '\000', tx_sync_thread =3D 0xfffff80008e9d000,
tx_quiesce_thread =3D 0xfffff80008e9c000, tx_commit_cb_taskq =3D 0x0},=20
dp_dirty_datasets =3D {tl_lock =3D {lock_object =3D {lo_name =3D 0xffffff=
ff81be221e
<.L.str.28+1> "tl->tl_lock", lo_flags =3D 577830912,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, tl_offset =3D 9=
28, tl_spa =3D
0xfffffe004ebe8000, tl_head =3D {0x0, 0x0, 0x0,=20
0x0}}, dp_dirty_zilogs =3D {tl_lock =3D {lock_object =3D {lo_name =3D
0xffffffff81be221e <.L.str.28+1> "tl->tl_lock",=20
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock=
=3D 1},
tl_offset =3D 840, tl_spa =3D 0xfffffe004ebe8000,=20
tl_head =3D {0x0, 0x0, 0x0, 0x0}}, dp_dirty_dirs =3D {tl_lock =3D {lock=
_object =3D
{
lo_name =3D 0xffffffff81be221e <.L.str.28+1> "tl->tl_lock", lo_flag=
s =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, tl_offset =3D 96, tl_spa =3D 0xfffffe004ebe8000, tl_h=
ead =3D
{0xfffff80008fb2c60, 0x0, 0x0, 0x0}}, dp_sync_tasks =3D {
tl_lock =3D {lock_object =3D {lo_name =3D 0xffffffff81be221e <.L.str.28=
+1>
"tl->tl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, tl_offset =3D 0, tl_spa =3D
0xfffffe004ebe8000, tl_head =3D {0x0, 0x0, 0x0, 0x0}},=20
dp_early_sync_tasks =3D {tl_lock =3D {lock_object =3D {lo_name =3D 0xffff=
ffff81be221e
<.L.str.28+1> "tl->tl_lock", lo_flags =3D 577830912,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, tl_offset =3D 0=
, tl_spa =3D
0xfffffe004ebe8000, tl_head =3D {0x0, 0x0, 0x0, 0x0}},=20
dp_sync_taskq =3D 0xfffff80004bc7c40, dp_zil_clean_taskq =3D 0xfffff80004=
bc7c30,
dp_config_rwlock =3D {rr_lock =3D {lock_object =3D {
lo_name =3D 0xffffffff81bb98ae <.L.str.1+1> "rrl->rr_lock", lo_flag=
s =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rr_cv =3D {cv_description =3D 0xffffffff81bc8820 <.L.=
str.2+1>
"rrl->rr_cv", cv_waiters =3D 0}, rr_writer =3D 0x0,=20
rr_anon_rcount =3D {rc_mtx =3D {lock_object =3D {lo_name =3D 0xffffffff=
81bd9017
<.L.str.3+1> "rc->rc_mtx", lo_flags =3D 577830912,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, rc_tracked =
=3D 0, rc_list
=3D {list_size =3D 40, list_offset =3D 0, list_head =3D {
list_next =3D 0xfffff80004b72d18, list_prev =3D 0xfffff80004b72d1=
8}},
rc_removed =3D {list_size =3D 40, list_offset =3D 0,=20
list_head =3D {list_next =3D 0xfffff80004b72d38, list_prev =3D
0xfffff80004b72d38}}, rc_count =3D 0, rc_removed_count =3D 0},=20
--Type <RET> for more, q to quit, c to continue without paging--
rr_linked_rcount =3D {rc_mtx =3D {lock_object =3D {lo_name =3D 0xffffff=
ff81bd9017
<.L.str.3+1> "rc->rc_mtx", lo_flags =3D 577830912,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, rc_tracked =
=3D 0, rc_list
=3D {list_size =3D 40, list_offset =3D 0, list_head =3D {
list_next =3D 0xfffff80004b72d90, list_prev =3D 0xfffff80004b72d9=
0}},
rc_removed =3D {list_size =3D 40, list_offset =3D 0,=20
list_head =3D {list_next =3D 0xfffff80004b72db0, list_prev =3D
0xfffff80004b72db0}}, rc_count =3D 0, rc_removed_count =3D 0},=20
rr_writer_wanted =3D 0, rr_track_all =3D 1}, dp_blkstats =3D 0x0}
(kgdb) p *dp->dp_spa
$2 =3D {spa_name =3D "dpool", '\000' <repeats 250 times>, spa_comment =3D 0=
x0,
spa_avl =3D {avl_child =3D {0x0, 0x0},=20
avl_pcb =3D 18446741875996868873}, spa_config =3D 0xfffff80008c45800,
spa_config_syncing =3D 0x0, spa_config_splitting =3D 0x0,=20
spa_load_info =3D 0xfffff80004c94220, spa_config_txg =3D 2029544, spa_syn=
c_pass =3D
1, spa_state =3D POOL_STATE_ACTIVE,=20
spa_inject_ref =3D 0, spa_sync_on =3D 1 '\001', spa_load_state =3D SPA_LO=
AD_NONE,
spa_indirect_vdevs_loaded =3D 1, spa_trust_config =3D 1,=20
spa_config_source =3D SPA_CONFIG_SRC_MOS, spa_import_flags =3D 0, spa_zio=
_taskq =3D
{{{stqs_count =3D 1,=20
stqs_taskq =3D 0xfffff80004deff00}, {stqs_count =3D 0, stqs_taskq =
=3D 0x0},
{stqs_count =3D 1, stqs_taskq =3D 0xfffff8000496b3c0}, {
stqs_count =3D 0, stqs_taskq =3D 0x0}}, {{stqs_count =3D 1, stqs_ta=
skq =3D
0xfffff8000496b3e0}, {stqs_count =3D 0,=20
stqs_taskq =3D 0x0}, {stqs_count =3D 8, stqs_taskq =3D 0xfffff80008=
7e38c0},
{stqs_count =3D 0, stqs_taskq =3D 0x0}}, {{
stqs_count =3D 1, stqs_taskq =3D 0xfffff80004bc7e10}, {stqs_count =
=3D 1,
stqs_taskq =3D 0xfffff80004bc7df0}, {stqs_count =3D 1,=20
stqs_taskq =3D 0xfffff80004bc7dd0}, {stqs_count =3D 1, stqs_taskq =
=3D
0xfffff80004bc7db0}}, {{stqs_count =3D 8,=20
stqs_taskq =3D 0xfffff800087e3180}, {stqs_count =3D 0, stqs_taskq =
=3D 0x0},
{stqs_count =3D 1, stqs_taskq =3D 0xfffff80004bc7d10}, {
stqs_count =3D 0, stqs_taskq =3D 0x0}}, {{stqs_count =3D 1, stqs_ta=
skq =3D
0xfffff80004bc7cf0}, {stqs_count =3D 0,=20
stqs_taskq =3D 0x0}, {stqs_count =3D 1, stqs_taskq =3D 0xfffff80004=
bc7cd0},
{stqs_count =3D 0, stqs_taskq =3D 0x0}}, {{
stqs_count =3D 1, stqs_taskq =3D 0xfffff80004bc7cb0}, {stqs_count =
=3D 0,
stqs_taskq =3D 0x0}, {stqs_count =3D 1,=20
stqs_taskq =3D 0xfffff80004bc7c90}, {stqs_count =3D 0, stqs_taskq =
=3D 0x0}}},
spa_dsl_pool =3D 0xfffff80004b72800,=20
spa_is_initializing =3D 0, spa_normal_class =3D 0xfffff80004e74000, spa_l=
og_class
=3D 0xfffff80004a68400, spa_first_txg =3D 2863817,=20
spa_final_txg =3D 18446744073709551615, spa_freeze_txg =3D 18446744073709=
551615,
spa_load_max_txg =3D 18446744073709551615,=20
spa_claim_max_txg =3D 2863817, spa_loaded_ts =3D {tv_sec =3D 1569501932, =
tv_nsec =3D
655368601}, spa_meta_objset =3D 0xfffff80008af3400,=20
spa_evicting_os_lock =3D {lock_object =3D {lo_name =3D 0xffffffff81bce36c
<.L.str.16+1> "spa->spa_evicting_os_lock",=20
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =
=3D 1},
spa_evicting_os_list =3D {list_size =3D 896,=20
list_offset =3D 304, list_head =3D {list_next =3D 0xfffffe004ebe8380, l=
ist_prev =3D
0xfffffe004ebe8380}}, spa_evicting_os_cv =3D {
cv_description =3D 0xffffffff81bd1a69 <.L.str.26+1>
"spa->spa_evicting_os_cv", cv_waiters =3D 0}, spa_vdev_txg_list =3D {tl_loc=
k =3D {
lock_object =3D {lo_name =3D 0xffffffff81be221e <.L.str.28+1> "tl->tl=
_lock",
lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, tl_offset =3D 688, tl_spa =3D
0xfffffe004ebe8000, tl_head =3D {0x0, 0x0, 0x0,=20
0xfffff80008c432b0}}, spa_root_vdev =3D 0xfffff80008c44000, spa_min_a=
shift
=3D 12, spa_max_ashift =3D 12,=20
spa_config_guid =3D 11714503416111511200, spa_load_guid =3D 6215109065070=
704231,
spa_last_synced_guid =3D 11714503416111511200,=20
spa_config_dirty_list =3D {list_size =3D 2280, list_offset =3D 736, list_=
head =3D
{list_next =3D 0xfffffe004ebe8428,=20
list_prev =3D 0xfffffe004ebe8428}}, spa_state_dirty_list =3D {list_si=
ze =3D
2280, list_offset =3D 752, list_head =3D {
list_next =3D 0xfffffe004ebe8448, list_prev =3D 0xfffffe004ebe8448}},
spa_alloc_locks =3D 0xfffff80008180380,=20
spa_alloc_trees =3D 0xfffff80004bf7300, spa_alloc_count =3D 4, spa_spares=
=3D
{sav_object =3D 0, sav_config =3D 0x0, sav_vdevs =3D 0x0,=20
sav_count =3D 0, sav_sync =3D 0, sav_pending =3D 0x0, sav_npending =3D =
0},
spa_l2cache =3D {sav_object =3D 275,=20
sav_config =3D 0xfffff80004dee0a0, sav_vdevs =3D 0xfffff8000496bb70, sa=
v_count
=3D 1, sav_sync =3D 0, sav_pending =3D 0x0,=20
sav_npending =3D 0}, spa_label_features =3D 0xfffff80004c94200,
spa_config_object =3D 57, spa_config_generation =3D 0,=20
spa_syncing_txg =3D 2864864, spa_deferred_bpobj =3D {bpo_lock =3D {lock_o=
bject =3D {
lo_name =3D 0xffffffff81bd0df4 <.L.str.19+1> "bpo->bpo_lock", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, bpo_os =3D 0xfffff80008af3400, bpo_object =3D 61, bpo=
_epb =3D
128, bpo_havecomp =3D 1 '\001',=20
bpo_havesubobj =3D 1 '\001', bpo_phys =3D 0xfffff80008977800, bpo_dbuf =
=3D
0xfffff800089709a0,=20
bpo_cached_dbuf =3D 0xfffff8000d450000}, spa_free_bplist =3D {{bpl_lock=
=3D
{lock_object =3D {
lo_name =3D 0xffffffff81bc03ee <.L.str.1+1> "bpl->bpl_lock", lo_f=
lags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, bpl_list =3D {list_size =3D 144, list_offset =3D 12=
8, list_head
=3D {list_next =3D 0xfffffe004ebe8570,=20
list_prev =3D 0xfffffe004ebe8570}}}, {bpl_lock =3D {lock_object =
=3D {
lo_name =3D 0xffffffff81bc03ee <.L.str.1+1> "bpl->bpl_lock", lo_f=
lags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, bpl_list =3D {list_size =3D 144, list_offset =3D 12=
8, list_head
=3D {list_next =3D 0xfffffe004ebe85b0,=20
list_prev =3D 0xfffffe004ebe85b0}}}, {bpl_lock =3D {lock_object =
=3D {
--Type <RET> for more, q to quit, c to continue without paging--
lo_name =3D 0xffffffff81bc03ee <.L.str.1+1> "bpl->bpl_lock", lo_f=
lags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, bpl_list =3D {list_size =3D 144, list_offset =3D 12=
8, list_head
=3D {list_next =3D 0xfffffe004ebe85f0,=20
list_prev =3D 0xfffffe004ebe85f0}}}, {bpl_lock =3D {lock_object =
=3D {
lo_name =3D 0xffffffff81bc03ee <.L.str.1+1> "bpl->bpl_lock", lo_f=
lags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, bpl_list =3D {list_size =3D 144, list_offset =3D 12=
8, list_head
=3D {list_next =3D 0xfffffe004ebe8630,=20
list_prev =3D 0xfffffe004ebe8630}}}}, spa_cksum_salt =3D {
zcs_bytes =3D
"=C3=9E8\235\t=C3=82=C3=BDW=C3=BA\224\200=C3=80=C3=90=C3=9E=C3=A0W\264=C3=
=80u\203W=C3=B55[s\226-=C3=87\276\002\367?{"},
spa_cksum_tmpls_lock =3D {lock_object =3D {
lo_name =3D 0xffffffff81bc30ff <.L.str.20+1> "spa->spa_cksum_tmpls_lo=
ck",
lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, spa_cksum_tmpls =3D {0x0 <repeat=
s 13
times>}, spa_ubsync =3D {ub_magic =3D 12235020,=20
ub_version =3D 5000, ub_txg =3D 2864863, ub_guid_sum =3D 18220986535216=
77264,
ub_timestamp =3D 1569507067, ub_rootbp =3D {blk_dva =3D {{
dva_word =3D {8, 447810216}}, {dva_word =3D {8, 738256336}}, {dva=
_word =3D
{8, 1208077200}}}, blk_prop =3D 9226475966770118659,=20
blk_pad =3D {0, 0}, blk_phys_birth =3D 0, blk_birth =3D 2864862, blk_=
fill =3D
2024, blk_cksum =3D {zc_word =3D {16400598605,=20
7775230236364, 1847786449934068, 293504487061283720}}},
ub_software_version =3D 5000, ub_mmp_magic =3D 0, ub_mmp_delay =3D 0,=20
ub_mmp_seq =3D 0, ub_checkpoint_txg =3D 0}, spa_uberblock =3D {ub_magic=
=3D
12235020, ub_version =3D 5000, ub_txg =3D 2864863,=20
ub_guid_sum =3D 1822098653521677264, ub_timestamp =3D 1569507067, ub_ro=
otbp =3D
{blk_dva =3D {{dva_word =3D {8, 447810216}}, {
dva_word =3D {8, 738256336}}, {dva_word =3D {8, 1208077200}}}, bl=
k_prop =3D
9226475966770118659, blk_pad =3D {0, 0},=20
blk_phys_birth =3D 0, blk_birth =3D 2864862, blk_fill =3D 2024, blk_c=
ksum =3D
{zc_word =3D {16400598605, 7775230236364,=20
1847786449934068, 293504487061283720}}}, ub_software_version =3D =
5000,
ub_mmp_magic =3D 0, ub_mmp_delay =3D 0, ub_mmp_seq =3D 0,=20
ub_checkpoint_txg =3D 0}, spa_extreme_rewind =3D 0, spa_last_io =3D 510=
6579,
spa_scrub_lock =3D {lock_object =3D {
lo_name =3D 0xffffffff81bb612d <.L.str.21+1> "spa->spa_scrub_lock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, spa_scrub_inflight =3D 0, spa_load_verify_ios =3D 0,
spa_scrub_io_cv =3D {
cv_description =3D 0xffffffff81be7b03 <.L.str.28+1> "spa->spa_scrub_io_=
cv",
cv_waiters =3D 0}, spa_scrub_active =3D 0 '\000',=20
spa_scrub_type =3D 0 '\000', spa_scrub_finished =3D 0 '\000', spa_scrub_s=
tarted =3D
0 '\000', spa_scrub_reopen =3D 0 '\000',=20
spa_scan_pass_start =3D 1569501933, spa_scan_pass_scrub_pause =3D 0,
spa_scan_pass_scrub_spent_paused =3D 0, spa_scan_pass_exam =3D 0,=20
spa_scan_pass_issued =3D 0, spa_async_lock =3D {lock_object =3D {lo_name =
=3D
0xffffffff81bbf0d9 <.L.str.13+1> "spa->spa_async_lock",=20
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =
=3D 1},
spa_async_thread =3D 0x0, spa_async_thread_vd =3D 0x0,=20
spa_async_suspended =3D 0, spa_async_cv =3D {cv_description =3D 0xfffffff=
f81bce39b
<.L.str.25+1> "spa->spa_async_cv", cv_waiters =3D 0},=20
spa_async_tasks =3D 0, spa_missing_tvds =3D 0, spa_missing_tvds_allowed =
=3D 0,
spa_removing_phys =3D {sr_state =3D 0,=20
sr_removing_vdev =3D 18446744073709551615, sr_prev_indirect_vdev =3D
18446744073709551615, sr_start_time =3D 0, sr_end_time =3D 0,=20
sr_to_copy =3D 0, sr_copied =3D 0}, spa_vdev_removal =3D 0x0,
spa_condensing_indirect_phys =3D {scip_vdev =3D 0,=20
scip_prev_obsolete_sm_object =3D 0, scip_next_mapping_object =3D 0},
spa_condensing_indirect =3D 0x0,=20
spa_condense_zthr =3D 0xfffff80008533900, spa_checkpoint_txg =3D 0,
spa_checkpoint_info =3D {sci_timestamp =3D 0, sci_dspace =3D 0},=20
spa_checkpoint_discard_zthr =3D 0xfffff80008533880, spa_root =3D 0x0, spa=
_ena =3D
0, spa_last_open_failed =3D 0,=20
spa_last_ubsync_txg =3D 0, spa_last_ubsync_txg_ts =3D 0, spa_load_txg =3D=
0,
spa_load_txg_ts =3D 1569501768, spa_load_meta_errors =3D 0,=20
spa_load_data_errors =3D 0, spa_verify_min_txg =3D 2863813, spa_errlog_lo=
ck =3D
{lock_object =3D {
lo_name =3D 0xffffffff81bc8a75 <.L.str.15+1> "spa->spa_errlog_lock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, spa_errlog_last =3D 0, spa_errlog_scrub =3D 0, spa_errl=
ist_lock =3D
{lock_object =3D {
lo_name =3D 0xffffffff81be958d <.L.str.14+1> "spa->spa_errlist_lock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, spa_errlist_last =3D {avl_root =3D 0x0, avl_compar =3D
0xffffffff81af53f0 <spa_error_entry_compare>, avl_offset =3D 40,=20
avl_numnodes =3D 0, avl_size =3D 64}, spa_errlist_scrub =3D {avl_root =
=3D 0x0,=20
avl_compar =3D 0xffffffff81af53f0 <spa_error_entry_compare>, avl_offset=
=3D 40,
avl_numnodes =3D 0, avl_size =3D 64}, spa_deflate =3D 1,=20
spa_history =3D 62, spa_history_lock =3D {lock_object =3D {lo_name =3D
0xffffffff81bd7331 <.L.str.17+1> "spa->spa_history_lock",=20
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =
=3D 1},
spa_pending_vdev =3D 0x0, spa_props_lock =3D {lock_object =3D {
lo_name =3D 0xffffffff81be5e02 <.L.str.19+1> "spa->spa_props_lock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
--Type <RET> for more, q to quit, c to continue without paging--
sx_lock =3D 1}, spa_pool_props_object =3D 0, spa_bootfs =3D 0, spa_fail=
mode =3D 0,
spa_delegation =3D 1, spa_config_list =3D {
list_size =3D 24, list_offset =3D 0, list_head =3D {list_next =3D
0xfffff80004c94260, list_prev =3D 0xfffff80004c94260}},=20
spa_async_zio_root =3D 0xfffff80004ded0c0, spa_suspend_zio_root =3D 0x0,
spa_txg_zio =3D {0xfffff800818cc418, 0xfffff80004c6b418,=20
0xfffff800818dd418, 0xfffff80081848000}, spa_suspend_lock =3D {lock_obj=
ect =3D
{
lo_name =3D 0xffffffff81bdccac <.L.str.22+1> "spa->spa_suspend_lock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, spa_suspend_cv =3D {cv_description =3D 0xffffffff81bb61=
42
<.L.str.29+1> "spa->spa_suspend_cv", cv_waiters =3D 0},=20
spa_suspended =3D 0 '\000', spa_claiming =3D 0 '\000', spa_is_root =3D 0,
spa_minref =3D 11, spa_mode =3D 3, spa_log_state =3D SPA_LOG_GOOD,=20
spa_autoexpand =3D 0, spa_bootsize =3D 0, spa_ddt =3D {0xfffffe004bd98000,
0xfffffe004bda0000, 0xfffffe004bda8000, 0xfffffe004bdb0000,=20
0xfffffe004bdb8000, 0xfffffe004bdc0000, 0xfffffe004bdc8000,
0xfffffe004bdd0000, 0xfffffe004bdd8000, 0xfffffe004bde0000,=20
0xfffffe004fa00000, 0xfffffe004fa08000, 0xfffffe004fa10000},
spa_ddt_stat_object =3D 0, spa_dedup_ditto =3D 0,=20
spa_dedup_checksum =3D 8, spa_dspace =3D 987842478080, spa_vdev_top_lock =
=3D
{lock_object =3D {
lo_name =3D 0xffffffff81be0b46 <.L.str.23+1> "spa->spa_vdev_top_lock",
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, spa_proc_lock =3D {lock_object =3D {lo_name =3D 0xfffff=
fff81bce387
<.L.str.18+1> "spa->spa_proc_lock",=20
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =
=3D 1},
spa_proc_cv =3D {
cv_description =3D 0xffffffff81beb620 <.L.str.27+1> "spa->spa_proc_cv",
cv_waiters =3D 0}, spa_proc_state =3D SPA_PROC_NONE,=20
spa_proc =3D 0xffffffff814e6fb0 <proc0>, spa_did =3D 0, spa_trim_thread =
=3D
0xfffff80008af85e0, spa_trim_lock =3D {lock_object =3D {
lo_name =3D 0xffffffff81be1317 <.L.str.8+1> "spa->spa_trim_lock", lo_=
flags
=3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, spa_trim_cv =3D {cv_description =3D 0xffffffff81bd7d34
<.L.str.9+1> "spa->spa_trim_cv", cv_waiters =3D 4795},=20
spa_autoreplace =3D 0, spa_vdev_locks =3D 0, spa_creation_version =3D 500=
0,
spa_prev_software_version =3D 5000,=20
spa_feat_for_write_obj =3D 59, spa_feat_for_read_obj =3D 58, spa_feat_des=
c_obj =3D
60, spa_feat_enabled_txg_obj =3D 63,=20
spa_feat_stats_lock =3D {lock_object =3D {lo_name =3D 0xffffffff81bd7348
<.L.str.24+1> "spa->spa_feat_stats_lock",=20
lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =
=3D 1},
spa_feat_stats =3D 0xfffff800087d1ca0,=20
spa_feat_refcount_cache =3D {0, 3399, 1, 0, 116, 14, 1, 0, 1, 0, 0, 0, 0,=
0, 0,
0, 0, 0, 1}, spa_deadman_cycid =3D {c_links =3D {le =3D {
le_next =3D 0x0, le_prev =3D 0xfffffe00031b3f60}, sle =3D {sle_next=
=3D 0x0},
tqe =3D {tqe_next =3D 0x0,=20
tqe_prev =3D 0xfffffe00031b3f60}}, c_time =3D 26413723334338, c_pre=
cision =3D
268435437500, c_arg =3D 0xfffffe004ebe8000,=20
c_func =3D 0xffffffff81b08630 <spa_deadman_timeout>, c_lock =3D 0x0, c_=
flags =3D
2, c_iflags =3D 20, c_cpu =3D 0}, spa_deadman_task =3D {
ta_link =3D {stqe_next =3D 0x0}, ta_pending =3D 0, ta_priority =3D 0, t=
a_func =3D
0xffffffff81b08560 <spa_deadman>,=20
ta_context =3D 0xfffffe004ebe8000}, spa_deadman_calls =3D 0, spa_sync_s=
tarttime
=3D 5149924275093,=20
spa_deadman_synctime =3D 1000000000000, spa_all_vdev_zaps =3D 64, spa_avz=
_action
=3D AVZ_ACTION_NONE, spa_lowmem_page_load =3D 0,=20
spa_lowmem_last_txg =3D 0, spa_ccw_fail_time =3D 0, spa_config_lock =3D {=
{scl_lock
=3D {lock_object =3D {
lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1> "scl->scl_lock", lo=
_flags
=3D 577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, scl_writer =3D 0x0, scl_write_wanted =3D 0, scl_cv =
=3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe8f38,=20
list_prev =3D 0xfffffe004ebe8f38}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe8f58, list_prev =3D 0xfffffe004ebe8=
f58}},
rc_count =3D 1, rc_removed_count =3D 0}}, {scl_lock =3D {
lock_object =3D {lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1>
"scl->scl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, scl_writer =3D 0x0, scl_writ=
e_wanted =3D
0, scl_cv =3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe8ff0,=20
list_prev =3D 0xfffffe004ebe8ff0}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe9010, list_prev =3D 0xfffffe004ebe9=
010}},
rc_count =3D 0, rc_removed_count =3D 0}}, {scl_lock =3D {
--Type <RET> for more, q to quit, c to continue without paging--
lock_object =3D {lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1>
"scl->scl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, scl_writer =3D 0x0, scl_writ=
e_wanted =3D
0, scl_cv =3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe90a8,=20
list_prev =3D 0xfffffe004ebe90a8}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe90c8, list_prev =3D 0xfffffe004ebe9=
0c8}},
rc_count =3D 0, rc_removed_count =3D 0}}, {scl_lock =3D {
lock_object =3D {lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1>
"scl->scl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, scl_writer =3D 0x0, scl_writ=
e_wanted =3D
0, scl_cv =3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe9160,=20
list_prev =3D 0xfffffe004ebe9160}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe9180, list_prev =3D 0xfffffe004ebe9=
180}},
rc_count =3D 0, rc_removed_count =3D 0}}, {scl_lock =3D {
lock_object =3D {lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1>
"scl->scl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, scl_writer =3D 0x0, scl_writ=
e_wanted =3D
0, scl_cv =3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe9218,=20
list_prev =3D 0xfffffe004ebe9218}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe9238, list_prev =3D 0xfffffe004ebe9=
238}},
rc_count =3D 0, rc_removed_count =3D 0}}, {scl_lock =3D {
lock_object =3D {lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1>
"scl->scl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, scl_writer =3D 0x0, scl_writ=
e_wanted =3D
0, scl_cv =3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe92d0,=20
list_prev =3D 0xfffffe004ebe92d0}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe92f0, list_prev =3D 0xfffffe004ebe9=
2f0}},
rc_count =3D 0, rc_removed_count =3D 0}}, {scl_lock =3D {
lock_object =3D {lo_name =3D 0xffffffff81bc4b2f <.L.str.106+1>
"scl->scl_lock", lo_flags =3D 577830912, lo_data =3D 0,=20
lo_witness =3D 0x0}, sx_lock =3D 1}, scl_writer =3D 0x0, scl_writ=
e_wanted =3D
0, scl_cv =3D {
cv_description =3D 0xffffffff81bdadbd <.L.str.107+1> "scl->scl_cv",
cv_waiters =3D 0}, scl_count =3D {rc_mtx =3D {lock_object =3D {
lo_name =3D 0xffffffff81bd9017 <.L.str.3+1> "rc->rc_mtx", lo_fl=
ags =3D
577830912, lo_data =3D 0, lo_witness =3D 0x0},=20
sx_lock =3D 1}, rc_tracked =3D 0, rc_list =3D {list_size =3D 40, =
list_offset
=3D 0, list_head =3D {list_next =3D 0xfffffe004ebe9388,=20
list_prev =3D 0xfffffe004ebe9388}}, rc_removed =3D {list_size =
=3D 40,
list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe93a8, list_prev =3D 0xfffffe004ebe9=
3a8}},
rc_count =3D 0, rc_removed_count =3D 0}}},=20
spa_refcount =3D {rc_mtx =3D {lock_object =3D {lo_name =3D 0xffffffff81bd=
9017
<.L.str.3+1> "rc->rc_mtx", lo_flags =3D 577830912,=20
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, rc_tracked =3D =
0, rc_list =3D
{list_size =3D 40, list_offset =3D 0, list_head =3D {
list_next =3D 0xfffffe004ebe9400, list_prev =3D 0xfffffe004ebe9400}=
},
rc_removed =3D {list_size =3D 40, list_offset =3D 0,=20
list_head =3D {list_next =3D 0xfffffe004ebe9420, list_prev =3D
0xfffffe004ebe9420}}, rc_count =3D 64, rc_removed_count =3D 0},=20
spa_splitting_newspa =3D 0}
(kgdb)
--=20
You are receiving this mail because:
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The following is a listing of current problems submitted by FreeBSD users,
which need special attention. These represent problem reports covering
all versions including experimental development code and obsolete releases.
Status | Bug Id | Description
------------+-----------+---------------------------------------------------
New | 203492 | mount_unionfs -o below causes panic
Open | 144447 | [zfs] sharenfs fsunshare() & fsshare_main() non f
Open | 211491 | System hangs after "Uptime" on reboot with ZFS
Open | 221909 | [ZFS] Add a sysctl to toggle send_corrupt_data
Open | 235665 | panic: handle_written_inodeblock: live inodedep
Open | 237067 | ZFS: Crash in vdev_dtl_reassess when using GELI w
6 problems total for which you should take action.
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Subject: [Bug 240640] zfs send -n -P -i is broken after r344601
Date: Mon, 30 Sep 2019 13:37:54 +0000
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--- Comment #10 from Andriy Gapon <avg@FreeBSD.org> ---
Sean,
is it possible to MFC this change to stable/12 a little bit sooner, so that=
we
can try to merge it to releng/12.1 while it's still in the RC phase?
Thanks!
--=20
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Subject: [Bug 240640] zfs send -n -P -i is broken after r344601
Date: Mon, 30 Sep 2019 13:38:02 +0000
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Andriy Gapon <avg@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|Open |In Progress
--=20
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Subject: [Bug 240640] zfs send -n -P -i is broken after r344601
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--- Comment #11 from Andriy Gapon <avg@FreeBSD.org> ---
(In reply to Andriy Gapon from comment #10)
Sorry, I meant beta phase, of course.
--=20
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Subject: [Bug 239566] [zfs] panic: solaris assert: avl_find(&scn->scn_queue,
sds, &where) .... dsl_scan.c line 1029
Date: Mon, 30 Sep 2019 15:09:36 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239566
--- Comment #6 from commit-hook@freebsd.org ---
A commit references this bug:
Author: avg
Date: Mon Sep 30 15:08:46 UTC 2019
New revision: 352905
URL: https://svnweb.freebsd.org/changeset/base/352905
Log:
Merge from stable/12 r352723: fix dsl_scan_ds_clone_swapped logic
PR: 239566
Approved by: re (gjb)
Changes:
_U releng/12.1/
releng/12.1/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c
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Subject: [Bug 240640] zfs send -n -P -i is broken after r344601
Date: Mon, 30 Sep 2019 17:24:26 +0000
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--- Comment #12 from Sean Eric Fagan <sef@FreeBSD.org> ---
I completely forgot about it this weekend. I'll plan on doing things today.
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From owner-freebsd-fs@freebsd.org Tue Oct 1 04:56:45 2019
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Message-ID: <CADaJeD24HV0eW7nQT9jaQwEWp=1f4J2WL3OOLZiv--v1zyepwQ@mail.gmail.com>
Subject: [zfs] filesystem reads hanging
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Hi,
I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
The system runs an application that uses postgres, and python (among other
services).
I have noticed that python suddenly is not able to connect to postgres.
When I try to investigate further, certain files on disk can not be read.
The commands `cat` and `ls -l` hang (no output and I can not ctrl-c or kill
-9 them), ps -aux shows them in a D+ state.
On killing the SSH session these processes continue running in orphans, I
am not able to kill them.
Someone on IRC suggested running a zfs scrub to check for data corruption,
but running `zpool scrub zroot` has the same effect.
The command does not return, ctrl-c does not kill it and `zpool scrub -s
zroot` says "cannot cancel scrubbing zroot: there is no active scrub".
This has happened in the past 1 month to two of my production servers and
since the application was critical they were rebooted and the boxes
function as normal after the reboot.
Files that were not cat-able on the production servers were working fine
and a zfs scrub worked fine to show 0 errors and 0 fixes.
One of these boxes needed a hard reboot as it got stuck in the shutting
down stage of a soft reboot.
I am not sure where to start debugging this or if there are any ways to get
metrics on a box stuck in this state.
Please let me know if you would like me to fetch any metrics or run and
commands, etc. for you.
Any help would be much appreciated.
Best regards,
Reshad
From owner-freebsd-fs@freebsd.org Tue Oct 1 05:21:02 2019
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From: Warner Losh <imp@bsdimp.com>
Date: Mon, 30 Sep 2019 23:20:48 -0600
Message-ID: <CANCZdfrUctOKCzee7ZS7eL+7_SspG77dt_L4phSqmDuXnq4RhA@mail.gmail.com>
Subject: Re: [zfs] filesystem reads hanging
To: Reshad Patuck <reshadpatuck1@gmail.com>
Cc: FreeBSD FS <freebsd-fs@freebsd.org>
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On Mon, Sep 30, 2019, 10:56 PM Reshad Patuck <reshadpatuck1@gmail.com>
wrote:
> Hi,
>
> I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
> The system runs an application that uses postgres, and python (among other
> services).
>
> I have noticed that python suddenly is not able to connect to postgres.
> When I try to investigate further, certain files on disk can not be read.
> The commands `cat` and `ls -l` hang (no output and I can not ctrl-c or kill
> -9 them), ps -aux shows them in a D+ state.
> On killing the SSH session these processes continue running in orphans, I
> am not able to kill them.
>
> Someone on IRC suggested running a zfs scrub to check for data corruption,
> but running `zpool scrub zroot` has the same effect.
> The command does not return, ctrl-c does not kill it and `zpool scrub -s
> zroot` says "cannot cancel scrubbing zroot: there is no active scrub".
>
> This has happened in the past 1 month to two of my production servers and
> since the application was critical they were rebooted and the boxes
> function as normal after the reboot.
> Files that were not cat-able on the production servers were working fine
> and a zfs scrub worked fine to show 0 errors and 0 fixes.
> One of these boxes needed a hard reboot as it got stuck in the shutting
> down stage of a soft reboot.
>
> I am not sure where to start debugging this or if there are any ways to get
> metrics on a box stuck in this state.
> Please let me know if you would like me to fetch any metrics or run and
> commands, etc. for you.
> Any help would be much appreciated.
>
Step 1 should be to make sure there are no disk errors... the successful
scrub suggests not, but it doesn't hurt to rule out hardware...
Warner
Best regards,
>
> Reshad
> _______________________________________________
> freebsd-fs@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
>
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From: Reshad Patuck <reshadpatuck1@gmail.com>
Date: Tue, 1 Oct 2019 11:04:59 +0530
Message-ID: <CADaJeD2qnEbFiLE5Vj01=WGwTR90MCRKfceJs3GJ6K552tGQCw@mail.gmail.com>
Subject: Re: [zfs] filesystem reads hanging
To: Warner Losh <imp@bsdimp.com>
Cc: FreeBSD FS <freebsd-fs@freebsd.org>
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Hi Warner,
I will do a scrub the moment I reboot the box.
As mentioned, running the zpool scrub command itself hangs (the command
does not return, and I can not kill it), further I am not able to see the
scrub running in the zpool status for zroot.
Is there any other way I can check the disk/hardware? (the pool is running
on a single SSD)
I have no logs that look like disk errors to me in /var/log/all.log and
/var/log/messages.
Thanks,
Reshad
On Tue, Oct 1, 2019 at 10:51 AM Warner Losh <imp@bsdimp.com> wrote:
>
>
> On Mon, Sep 30, 2019, 10:56 PM Reshad Patuck <reshadpatuck1@gmail.com>
> wrote:
>
>> Hi,
>>
>> I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
>> The system runs an application that uses postgres, and python (among other
>> services).
>>
>> I have noticed that python suddenly is not able to connect to postgres.
>> When I try to investigate further, certain files on disk can not be read.
>> The commands `cat` and `ls -l` hang (no output and I can not ctrl-c or
>> kill
>> -9 them), ps -aux shows them in a D+ state.
>> On killing the SSH session these processes continue running in orphans, I
>> am not able to kill them.
>>
>> Someone on IRC suggested running a zfs scrub to check for data corruption,
>> but running `zpool scrub zroot` has the same effect.
>> The command does not return, ctrl-c does not kill it and `zpool scrub -s
>> zroot` says "cannot cancel scrubbing zroot: there is no active scrub".
>>
>> This has happened in the past 1 month to two of my production servers and
>> since the application was critical they were rebooted and the boxes
>> function as normal after the reboot.
>> Files that were not cat-able on the production servers were working fine
>> and a zfs scrub worked fine to show 0 errors and 0 fixes.
>> One of these boxes needed a hard reboot as it got stuck in the shutting
>> down stage of a soft reboot.
>>
>> I am not sure where to start debugging this or if there are any ways to
>> get
>> metrics on a box stuck in this state.
>> Please let me know if you would like me to fetch any metrics or run and
>> commands, etc. for you.
>> Any help would be much appreciated.
>>
>
> Step 1 should be to make sure there are no disk errors... the successful
> scrub suggests not, but it doesn't hurt to rule out hardware...
>
> Warner
>
> Best regards,
>>
>> Reshad
>> _______________________________________________
>> freebsd-fs@freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-fs
>> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
>>
>
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From: Julien Cigar <julien@perdition.city>
To: Reshad Patuck <reshadpatuck1@gmail.com>
Cc: freebsd-fs@freebsd.org
Subject: Re: [zfs] filesystem reads hanging
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On Tue, Oct 01, 2019 at 10:26:32AM +0530, Reshad Patuck wrote:
> Hi,
Hello,
>=20
> I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
> The system runs an application that uses postgres, and python (among other
> services).
>=20
> I have noticed that python suddenly is not able to connect to postgres.
> When I try to investigate further, certain files on disk can not be read.
> The commands `cat` and `ls -l` hang (no output and I can not ctrl-c or ki=
ll
> -9 them), ps -aux shows them in a D+ state.
> On killing the SSH session these processes continue running in orphans, I
> am not able to kill them.
>=20
> Someone on IRC suggested running a zfs scrub to check for data corruption,
> but running `zpool scrub zroot` has the same effect.
> The command does not return, ctrl-c does not kill it and `zpool scrub -s
> zroot` says "cannot cancel scrubbing zroot: there is no active scrub".
>=20
> This has happened in the past 1 month to two of my production servers and
> since the application was critical they were rebooted and the boxes
> function as normal after the reboot.
> Files that were not cat-able on the production servers were working fine
> and a zfs scrub worked fine to show 0 errors and 0 fixes.
> One of these boxes needed a hard reboot as it got stuck in the shutting
> down stage of a soft reboot.
>=20
> I am not sure where to start debugging this or if there are any ways to g=
et
> metrics on a box stuck in this state.
> Please let me know if you would like me to fetch any metrics or run and
> commands, etc. for you.
> Any help would be much appreciated.
This is a known problem (see PR 236220) and has been fixed by r350894
(and MFC-ed into 12-STABLE, so I guess it should be in the upcoming
12.1-RELEASE)
>=20
> Best regards,
>=20
> Reshad
> _______________________________________________
> freebsd-fs@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
--=20
Julien Cigar
Belgian Biodiversity Platform (http://www.biodiversity.be)
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From: Reshad Patuck <reshadpatuck1@gmail.com>
Date: Tue, 1 Oct 2019 15:46:40 +0530
Message-ID: <CADaJeD2JNwdd=_6_Pdp1YUgEdD6f0V+5U6bUk+oKzx_MmXs0ow@mail.gmail.com>
Subject: Re: [zfs] filesystem reads hanging
To: Julien Cigar <julien@perdition.city>
Cc: FreeBSD FS <freebsd-fs@freebsd.org>
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Hi Julien,
I did come across that one an hour or so back, can you let me know if there
is any way to confirm that it is the same issue I am running up against.
The command `procstat -kka` does have very similar (and in some cases
identical) output to the lines in the PR mentioned.
Unfortunately I need to stick to 12.0 till 12.1 is out, any idea if I can
merge the same change into 12.0 and compile it?
I can see the changes in the 12.1 branch, just wondering if I should jump
to the beta or wait it out if I cant compile it into 12.0.
Thanks for your help,
Reshad
On Tue, Oct 1, 2019 at 1:58 PM Julien Cigar <julien@perdition.city> wrote:
> On Tue, Oct 01, 2019 at 10:26:32AM +0530, Reshad Patuck wrote:
> > Hi,
>
> Hello,
>
> >
> > I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
> > The system runs an application that uses postgres, and python (among
> other
> > services).
> >
> > I have noticed that python suddenly is not able to connect to postgres.
> > When I try to investigate further, certain files on disk can not be read.
> > The commands `cat` and `ls -l` hang (no output and I can not ctrl-c or
> kill
> > -9 them), ps -aux shows them in a D+ state.
> > On killing the SSH session these processes continue running in orphans, I
> > am not able to kill them.
> >
> > Someone on IRC suggested running a zfs scrub to check for data
> corruption,
> > but running `zpool scrub zroot` has the same effect.
> > The command does not return, ctrl-c does not kill it and `zpool scrub -s
> > zroot` says "cannot cancel scrubbing zroot: there is no active scrub".
> >
> > This has happened in the past 1 month to two of my production servers and
> > since the application was critical they were rebooted and the boxes
> > function as normal after the reboot.
> > Files that were not cat-able on the production servers were working fine
> > and a zfs scrub worked fine to show 0 errors and 0 fixes.
> > One of these boxes needed a hard reboot as it got stuck in the shutting
> > down stage of a soft reboot.
> >
> > I am not sure where to start debugging this or if there are any ways to
> get
> > metrics on a box stuck in this state.
> > Please let me know if you would like me to fetch any metrics or run and
> > commands, etc. for you.
> > Any help would be much appreciated.
>
> This is a known problem (see PR 236220) and has been fixed by r350894
> (and MFC-ed into 12-STABLE, so I guess it should be in the upcoming
> 12.1-RELEASE)
>
> >
> > Best regards,
> >
> > Reshad
> > _______________________________________________
> > freebsd-fs@freebsd.org mailing list
> > https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
>
> --
> Julien Cigar
> Belgian Biodiversity Platform (http://www.biodiversity.be)
> PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0
> No trees were killed in the creation of this message.
> However, many electrons were terribly inconvenienced.
>
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Date: Tue, 1 Oct 2019 13:09:01 +0200
From: Julien Cigar <julien@perdition.city>
To: Reshad Patuck <reshadpatuck1@gmail.com>
Cc: FreeBSD FS <freebsd-fs@freebsd.org>
Subject: Re: [zfs] filesystem reads hanging
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On Tue, Oct 01, 2019 at 03:46:40PM +0530, Reshad Patuck wrote:
> Hi Julien,
Hi Reshad,
>=20
> I did come across that one an hour or so back, can you let me know if the=
re
> is any way to confirm that it is the same issue I am running up against.
> The command `procstat -kka` does have very similar (and in some cases
> identical) output to the lines in the PR mentioned.
>=20
I'm confident that it's the same issue.
> Unfortunately I need to stick to 12.0 till 12.1 is out, any idea if I can
> merge the same change into 12.0 and compile it?
> I can see the changes in the 12.1 branch, just wondering if I should jump
> to the beta or wait it out if I cant compile it into 12.0.
>=20
I can speak only for myself, but applying
https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D202890&action=3Ddiff
fixed the issue for me.
> Thanks for your help,
>=20
> Reshad
>=20
cheers,
Julien
>=20
> On Tue, Oct 1, 2019 at 1:58 PM Julien Cigar <julien@perdition.city> wrote:
>=20
> > On Tue, Oct 01, 2019 at 10:26:32AM +0530, Reshad Patuck wrote:
> > > Hi,
> >
> > Hello,
> >
> > >
> > > I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
> > > The system runs an application that uses postgres, and python (among
> > other
> > > services).
> > >
> > > I have noticed that python suddenly is not able to connect to postgre=
s.
> > > When I try to investigate further, certain files on disk can not be r=
ead.
> > > The commands `cat` and `ls -l` hang (no output and I can not ctrl-c or
> > kill
> > > -9 them), ps -aux shows them in a D+ state.
> > > On killing the SSH session these processes continue running in orphan=
s, I
> > > am not able to kill them.
> > >
> > > Someone on IRC suggested running a zfs scrub to check for data
> > corruption,
> > > but running `zpool scrub zroot` has the same effect.
> > > The command does not return, ctrl-c does not kill it and `zpool scrub=
-s
> > > zroot` says "cannot cancel scrubbing zroot: there is no active scrub".
> > >
> > > This has happened in the past 1 month to two of my production servers=
and
> > > since the application was critical they were rebooted and the boxes
> > > function as normal after the reboot.
> > > Files that were not cat-able on the production servers were working f=
ine
> > > and a zfs scrub worked fine to show 0 errors and 0 fixes.
> > > One of these boxes needed a hard reboot as it got stuck in the shutti=
ng
> > > down stage of a soft reboot.
> > >
> > > I am not sure where to start debugging this or if there are any ways =
to
> > get
> > > metrics on a box stuck in this state.
> > > Please let me know if you would like me to fetch any metrics or run a=
nd
> > > commands, etc. for you.
> > > Any help would be much appreciated.
> >
> > This is a known problem (see PR 236220) and has been fixed by r350894
> > (and MFC-ed into 12-STABLE, so I guess it should be in the upcoming
> > 12.1-RELEASE)
> >
> > >
> > > Best regards,
> > >
> > > Reshad
> > > _______________________________________________
> > > freebsd-fs@freebsd.org mailing list
> > > https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> > > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
> >
> > --
> > Julien Cigar
> > Belgian Biodiversity Platform (http://www.biodiversity.be)
> > PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0
> > No trees were killed in the creation of this message.
> > However, many electrons were terribly inconvenienced.
> >
--=20
Julien Cigar
Belgian Biodiversity Platform (http://www.biodiversity.be)
PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0
No trees were killed in the creation of this message.
However, many electrons were terribly inconvenienced.
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Date: Tue, 1 Oct 2019 14:21:29 +0300
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From: Lev Serebryakov <lev@FreeBSD.org>
Reply-To: lev@FreeBSD.org
To: freebsd-fs <freebsd-fs@freebsd.org>
Message-ID: <5192ac36-aea7-e71f-09fa-3324434b0cf5@FreeBSD.org>
Subject: `mksnap_ffs` could not make snapshot on `union`-mounted FS (but
created snapshot entry).
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I have UFS2+SUJ which is mounted like this:
/dev/ufs/unifi on /usr/local/unifi (ufs, local, union)
When I try to create snapshot (for live backup with `dump(8)`) I get:
root@gateway:~ # ls -la /usr/local/unifi/.snap
total 5
drwxrwx--- 2 root operator 512 Oct 1 14:17 .
drwxr-xr-x 7 root wheel 4096 May 28 00:20 ..
root@gateway:~ # mksnap_ffs /usr/local/unifi/.snap/dump_snapshot
mksnap_ffs: Cannot create snapshot /usr/local/unifi/.snap/dump_snapshot:
No such file or directory
root@gateway:~ # ls -la /usr/local/unifi/.snap
total 5
drwxrwx--- 2 root operator 512 Oct 1 14:17 .
drwxr-xr-x 7 root wheel 4096 May 28 00:20 ..
-r-------- 1 root operator 0 Oct 1 14:17 dump_snapshot
root@gateway:~ # rm /usr/local/unifi/.snap/dump_snapshot
root@gateway:~ # ls -la /usr/local/unifi/.snap
total 5
drwxrwx--- 2 root operator 512 Oct 1 14:20 .
drwxr-xr-x 7 root wheel 4096 May 28 00:20 ..
root@gateway:~ #
So, snapshot was created, but then failed.
It is rather old 13-CURRENT:
root@gateway:~ # uname -a
FreeBSD gateway.home.serebryakov.spb.ru 13.0-CURRENT FreeBSD
13.0-CURRENT r348252M J3160 amd64
root@gateway:~ #
--=20
// Lev Serebryakov
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From: Reshad Patuck <reshadpatuck1@gmail.com>
Date: Tue, 1 Oct 2019 17:39:27 +0530
Message-ID: <CADaJeD1DgSv+SQ86m=2ovUDkv7RWhyguqP-ytmnm13aFndVSSw@mail.gmail.com>
Subject: Re: [zfs] filesystem reads hanging
To: Julien Cigar <julien@perdition.city>
Cc: FreeBSD FS <freebsd-fs@freebsd.org>
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Hi Julien,
Thanks, I will give it a shot, and check if it occurs again.
Best,
Reshad
On Tue, Oct 1, 2019 at 4:39 PM Julien Cigar <julien@perdition.city> wrote:
> On Tue, Oct 01, 2019 at 03:46:40PM +0530, Reshad Patuck wrote:
> > Hi Julien,
>
> Hi Reshad,
>
> >
> > I did come across that one an hour or so back, can you let me know if
> there
> > is any way to confirm that it is the same issue I am running up against.
> > The command `procstat -kka` does have very similar (and in some cases
> > identical) output to the lines in the PR mentioned.
> >
>
> I'm confident that it's the same issue.
>
> > Unfortunately I need to stick to 12.0 till 12.1 is out, any idea if I can
> > merge the same change into 12.0 and compile it?
> > I can see the changes in the 12.1 branch, just wondering if I should jump
> > to the beta or wait it out if I cant compile it into 12.0.
> >
>
> I can speak only for myself, but applying
> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=202890&action=diff
> fixed the issue for me.
>
> > Thanks for your help,
> >
> > Reshad
> >
>
> cheers,
> Julien
>
> >
> > On Tue, Oct 1, 2019 at 1:58 PM Julien Cigar <julien@perdition.city>
> wrote:
> >
> > > On Tue, Oct 01, 2019 at 10:26:32AM +0530, Reshad Patuck wrote:
> > > > Hi,
> > >
> > > Hello,
> > >
> > > >
> > > > I have a FreeBSD 12.0-RELEASE-p9 system running ZFS.
> > > > The system runs an application that uses postgres, and python (among
> > > other
> > > > services).
> > > >
> > > > I have noticed that python suddenly is not able to connect to
> postgres.
> > > > When I try to investigate further, certain files on disk can not be
> read.
> > > > The commands `cat` and `ls -l` hang (no output and I can not ctrl-c
> or
> > > kill
> > > > -9 them), ps -aux shows them in a D+ state.
> > > > On killing the SSH session these processes continue running in
> orphans, I
> > > > am not able to kill them.
> > > >
> > > > Someone on IRC suggested running a zfs scrub to check for data
> > > corruption,
> > > > but running `zpool scrub zroot` has the same effect.
> > > > The command does not return, ctrl-c does not kill it and `zpool
> scrub -s
> > > > zroot` says "cannot cancel scrubbing zroot: there is no active
> scrub".
> > > >
> > > > This has happened in the past 1 month to two of my production
> servers and
> > > > since the application was critical they were rebooted and the boxes
> > > > function as normal after the reboot.
> > > > Files that were not cat-able on the production servers were working
> fine
> > > > and a zfs scrub worked fine to show 0 errors and 0 fixes.
> > > > One of these boxes needed a hard reboot as it got stuck in the
> shutting
> > > > down stage of a soft reboot.
> > > >
> > > > I am not sure where to start debugging this or if there are any ways
> to
> > > get
> > > > metrics on a box stuck in this state.
> > > > Please let me know if you would like me to fetch any metrics or run
> and
> > > > commands, etc. for you.
> > > > Any help would be much appreciated.
> > >
> > > This is a known problem (see PR 236220) and has been fixed by r350894
> > > (and MFC-ed into 12-STABLE, so I guess it should be in the upcoming
> > > 12.1-RELEASE)
> > >
> > > >
> > > > Best regards,
> > > >
> > > > Reshad
> > > > _______________________________________________
> > > > freebsd-fs@freebsd.org mailing list
> > > > https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> > > > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org
> "
> > >
> > > --
> > > Julien Cigar
> > > Belgian Biodiversity Platform (http://www.biodiversity.be)
> > > PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0
> > > No trees were killed in the creation of this message.
> > > However, many electrons were terribly inconvenienced.
> > >
>
> --
> Julien Cigar
> Belgian Biodiversity Platform (http://www.biodiversity.be)
> PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0
> No trees were killed in the creation of this message.
> However, many electrons were terribly inconvenienced.
>
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To: fs@FreeBSD.org
Subject: [Bug 240640] zfs send -n -P -i is broken after r344601
Date: Tue, 01 Oct 2019 18:05:55 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D240640
--- Comment #13 from commit-hook@freebsd.org ---
A commit references this bug:
Author: sef
Date: Tue Oct 1 18:05:52 UTC 2019
New revision: 352932
URL: https://svnweb.freebsd.org/changeset/base/352932
Log:
Fix a regression introduced in r344601, and work properly with the
-v and -n options.
PR: 240640
Reported by: Andriy Gapon <avg@FreeBSD.org>
Reviewed by: avg
Differential Revision: https://reviews.freebsd.org/D21709
Approved by: re
Changes:
releng/12.1/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_sendrecv.c
--=20
You are receiving this mail because:
You are on the CC list for the bug.=
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From: Shiva Bhanujan <Shiva.Bhanujan@Quorum.com>
To: Fabian Keil <freebsd-listen@fabiankeil.de>, "freebsd-fs@freebsd.org"
<freebsd-fs@freebsd.org>
CC: Shiva Bhanujan <Shiva.Bhanujan@Quorum.com>
Subject: RE: [ZFS] Potential silent data corruption when receiving
incremental stream with block size change on receiving side
Thread-Topic: [ZFS] Potential silent data corruption when receiving
incremental stream with block size change on receiving side
Thread-Index: AQHTD5fVNyrcrAZt7U2M3rWRyeqM6KdLNZ51
Date: Tue, 1 Oct 2019 22:51:26 +0000
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Hello,
This seems to be an older email, but I seem to be hitting this in FreeBSD =
10.3. Following is the precise version -
FreeBSD R530-Filer-20-194.quorum.net 10.3-RELEASE-p29 FreeBSD =
10.3-RELEASE-p29 =2312 r335461M: Wed Jun 20 16:11:04 PDT 2018 =
root=40R520-31-232.quorum.net:/usr/obj/usr/src/sys/QUORUM amd64
When I send an incremental snapshot, the md5sum of a couple of the files =
in the source and the destination don't match. The previous incrementals =
don't have a mismatch.
Can somebody please advise on what I should be looking for? I've checked =
the URLs mentioned here. The addition or removal of the -L option doesn't =
have any change.
Regards,
Shiva
________________________________
From: owner-freebsd-fs=40freebsd.org =5Bowner-freebsd-fs=40freebsd.org=5D =
on behalf of Fabian Keil =5Bfreebsd-listen=40fabiankeil.de=5D
Sent: Monday, August 07, 2017 8:10 AM
To: freebsd-fs=40freebsd.org
Subject: =5BZFS=5D Potential silent data corruption when receiving =
incremental stream with block size change on receiving side
The original message is attached because it is signed.
________________________________
From owner-freebsd-fs@freebsd.org Wed Oct 2 00:03:43 2019
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From: Eric Borisch <eborisch@gmail.com>
Date: Tue, 1 Oct 2019 19:03:28 -0500
Message-ID: <CAMsT2=nO7e=E-1gFdA0bhiui2vt8_kMbjH2ghy6g4q8a_tu3LQ@mail.gmail.com>
Subject: Re: [ZFS] Potential silent data corruption when receiving incremental
stream with block size change on receiving side
To: Shiva Bhanujan <Shiva.Bhanujan@quorum.com>
Cc: Fabian Keil <freebsd-listen@fabiankeil.de>,
"freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>
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That sounds like a potential hole birth issue.
You might consider upgrading to at least 10.4 or 11.1 and re-trying the
send; these added the vfs.zfs.send_holes_without_birth_time (default
true/1) tunable to avoid "numerous hole_birth bugs". See this [1] commit.
- Eric
[1]
https://svnweb.freebsd.org/base/releng/10.4/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c?revision=308086&view=markup
On Tue, Oct 1, 2019 at 5:51 PM Shiva Bhanujan <Shiva.Bhanujan@quorum.com>
wrote:
> Hello,
>
> This seems to be an older email, but I seem to be hitting this in FreeBSD
> 10.3. Following is the precise version -
>
> FreeBSD R530-Filer-20-194.quorum.net 10.3-RELEASE-p29 FreeBSD
> 10.3-RELEASE-p29 #12 r335461M: Wed Jun 20 16:11:04 PDT 2018
> root@R520-31-232.quorum.net:/usr/obj/usr/src/sys/QUORUM amd64
>
> When I send an incremental snapshot, the md5sum of a couple of the files
> in the source and the destination don't match. The previous incrementals
> don't have a mismatch.
>
> Can somebody please advise on what I should be looking for? I've checked
> the URLs mentioned here. The addition or removal of the -L option doesn't
> have any change.
>
> Regards,
> Shiva
>
>
> ________________________________
> From: owner-freebsd-fs@freebsd.org [owner-freebsd-fs@freebsd.org] on
> behalf of Fabian Keil [freebsd-listen@fabiankeil.de]
> Sent: Monday, August 07, 2017 8:10 AM
> To: freebsd-fs@freebsd.org
> Subject: [ZFS] Potential silent data corruption when receiving incremental
> stream with block size change on receiving side
>
> The original message is attached because it is signed.
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From: Shiva Bhanujan <Shiva.Bhanujan@Quorum.com>
To: Eric Borisch <eborisch@gmail.com>
CC: Fabian Keil <freebsd-listen@fabiankeil.de>, "freebsd-fs@freebsd.org"
<freebsd-fs@freebsd.org>, Shiva Bhanujan <Shiva.Bhanujan@Quorum.com>
Subject: RE: [ZFS] Potential silent data corruption when receiving
incremental stream with block size change on receiving side
Thread-Topic: [ZFS] Potential silent data corruption when receiving
incremental stream with block size change on receiving side
Thread-Index: AQHTD5fVNyrcrAZt7U2M3rWRyeqM6KdLNZ51gACKLQD//6xDYA==
Date: Wed, 2 Oct 2019 02:04:40 +0000
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Hi Eric,
thanks for the pointer. I tried the patch and it works.
regards,
Shiva
________________________________
From: Eric Borisch =5Beborisch=40gmail.com=5D
Sent: Tuesday, October 01, 2019 5:03 PM
To: Shiva Bhanujan
Cc: Fabian Keil; freebsd-fs=40freebsd.org
Subject: Re: =5BZFS=5D Potential silent data corruption when receiving =
incremental stream with block size change on receiving side
That sounds like a potential hole birth issue.
You might consider upgrading to at least 10.4 or 11.1 and re-trying the =
send; these added the vfs.zfs.send_holes_without_birth_time (default =
true/1) tunable to avoid =22numerous hole_birth bugs=22. See this =5B1=5D =
commit.
- Eric
=5B1=5D =
https://svnweb.freebsd.org/base/releng/10.4/sys/cddl/contrib/opensolaris/ut=
s/common/fs/zfs/dmu_traverse.c?revision=3D308086&view=3Dmarkup
On Tue, Oct 1, 2019 at 5:51 PM Shiva Bhanujan =
<Shiva.Bhanujan=40quorum.com<mailto:Shiva.Bhanujan=40quorum.com>> wrote:
Hello,
This seems to be an older email, but I seem to be hitting this in FreeBSD =
10.3. Following is the precise version -
FreeBSD R530-Filer-20-194.quorum.net<http://R530-Filer-20-194.quorum.net> =
10.3-RELEASE-p29 FreeBSD 10.3-RELEASE-p29 =2312 r335461M: Wed Jun 20 =
16:11:04 PDT 2018 =
root=40R520-31-232.quorum.net:/usr/obj/usr/src/sys/QUORUM amd64
When I send an incremental snapshot, the md5sum of a couple of the files =
in the source and the destination don't match. The previous incrementals =
don't have a mismatch.
Can somebody please advise on what I should be looking for? I've checked =
the URLs mentioned here. The addition or removal of the -L option doesn't =
have any change.
Regards,
Shiva
________________________________
From: =
owner-freebsd-fs=40freebsd.org<mailto:owner-freebsd-fs=40freebsd.org> =
=5Bowner-freebsd-fs=40freebsd.org<mailto:owner-freebsd-fs=40freebsd.org>=5D=
on behalf of Fabian Keil =
=5Bfreebsd-listen=40fabiankeil.de<mailto:freebsd-listen=40fabiankeil.de>=5D
Sent: Monday, August 07, 2017 8:10 AM
To: freebsd-fs=40freebsd.org<mailto:freebsd-fs=40freebsd.org>
Subject: =5BZFS=5D Potential silent data corruption when receiving =
incremental stream with block size change on receiving side
The original message is attached because it is signed.
________________________________
_______________________________________________
freebsd-fs=40freebsd.org<mailto:freebsd-fs=40freebsd.org> mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-fs
To unsubscribe, send any mail to =
=22freebsd-fs-unsubscribe=40freebsd.org<mailto:freebsd-fs-unsubscribe=40fre=
ebsd.org>=22
________________________________
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From: Peter Eriksson <pen@lysator.liu.se>
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Subject: zfs_unlinked_drain "forever"?
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Just upgraded and rebooted one of our servers from 11.2 to =
11.3-RELEASE-p3 and now it seems =E2=80=9Cstuck=E2=80=9D at mounting the =
filesystems=E2=80=A6=20
=E2=80=9Cstuck=E2=80=9D as in it _is_ doing something:
> # zpool iostat 10
> capacity operations bandwidth
> pool alloc free read write read write
> ---------- ----- ----- ----- ----- ----- -----
> DATA2 351T 11.3T 5 517 25.3K 4.97M
> DATA3 71.4T 73.6T 0 62 1.84K 863K
> DATA4 115T 12.2T 0 0 1.38K 152
> zroot 34.2G 78.8G 0 61 5.68K 461K
> ---------- ----- ----- ----- ----- ----- -----
> DATA2 351T 11.3T 0 272 0 2.46M
> DATA3 71.4T 73.6T 0 0 0 0
> DATA4 115T 12.2T 0 0 0 0
> zroot 34.2G 78.8G 0 47 0 200K
> ---------- ----- ----- ----- ----- ----- -----
It=E2=80=99s been doing these 272-300 Write IOPS on pool DATA2 since =
around 15:00 yesterday now and has mounted 3781 filesystems out of =
58295...
A =E2=80=9Cprocstat -kka=E2=80=9D shows one =E2=80=9Czfs mount=E2=80=9D =
process currently doing:
> 26508 102901 zfs - mi_switch+0xeb =
sleepq_wait+0x2c _cv_wait+0x16e txg_wait_synced+0xa5=20
> dmu_tx_assign+0x48 zfs_rmnode+0x122 zfs_freebsd_reclaim+0x4e =
VOP_RECLAIM_APV+0x80 vgonel+0x213=20
> vrecycle+0x46 zfs_freebsd_inactive+0xd VOP_INACTIVE_APV+0x80 =
vinactive+0xf0 vputx+0x2c3=20
> zfs_unlinked_drain+0x1b8 zfsvfs_setup+0x5e zfs_mount+0x623 =
vfs_domount+0x573=20
> # ps auxwww|egrep zfs
> root 17 0.0 0.0 0 2864 - DL 14:53 7:03.54 =
[zfskern]
> root 960 0.0 0.0 104716 31900 - Is 14:55 0:00.05 =
/usr/sbin/mountd -r -S /etc/exports /etc/zfs/exports
> root 4390 0.0 0.0 9040 5872 - Is 14:57 0:00.02 =
/usr/sbin/zfsd
> root 20330 0.0 0.0 22652 18388 - S 15:07 0:48.90 =
perl /usr/local/bin/parallel --will-cite -j 40 zfs mount {}
> root 26508 0.0 0.0 7804 5316 - D 15:09 0:08.58 =
/sbin/zfs mount DATA2/filur04.it.liu.se/DATA/staff/nikca89
> root 101 0.0 0.0 20148 14860 u1- I 14:55 0:00.88 =
/bin/bash /sbin/zfs-speedmount
> root 770 0.0 0.0 6732 2700 0 S+ 09:45 0:00.00 =
egrep zfs
(=E2=80=9Czfs-speedmount=E2=80=9D is a locally developed script that =
runs multiple =E2=80=9Czfs mount=E2=80=9D commands in parallel - speeds =
up mounting of filesystems a lot on this server _a lot_ (normally), =
since =E2=80=9Czfs mount=E2=80=9D didn=E2=80=99t use to mount stuff in =
parallell before, took multiple hours when rebooting servers).
A google-search found stuff about zfs_unlinked_drain improvements in =
Nexenta and Linux ZFS:
> https://github.com/zfsonlinux/zfs/pull/8142/commits =
<https://github.com/zfsonlinux/zfs/pull/8142/commits>
Anyone know if this (or similar) fixes are in FreeBSD ZFS =
(11.3-RELEASE-p3)?
- Peter
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Subject: Re: zfs_unlinked_drain "forever"?
Date: Thu, 3 Oct 2019 10:51:09 +0200
References: <D9E95E33-E91E-4B13-BD8F-FC6A72D05A64@lysator.liu.se>
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Weee.. I can report that _that_ =E2=80=9Czfs mount=E2=80=9D of that =
filesystem took ~18 hours. Now it is continuing with the rest=E2=80=A6
# df -h | wc -l
11563
(It=E2=80=99s currently mounting about 1 filesystem per second so at =
that pace it=E2=80=99ll be done in=E2=80=A6 12 hours).
- Peter
> On 3 Oct 2019, at 09:51, Peter Eriksson <pen@lysator.liu.se> wrote:
>=20
> Just upgraded and rebooted one of our servers from 11.2 to =
11.3-RELEASE-p3 and now it seems =E2=80=9Cstuck=E2=80=9D at mounting the =
filesystems=E2=80=A6=20
>=20
> =E2=80=9Cstuck=E2=80=9D as in it _is_ doing something:
>=20
>> # zpool iostat 10
>> capacity operations bandwidth
>> pool alloc free read write read write
>> ---------- ----- ----- ----- ----- ----- -----
>> DATA2 351T 11.3T 5 517 25.3K 4.97M
>> DATA3 71.4T 73.6T 0 62 1.84K 863K
>> DATA4 115T 12.2T 0 0 1.38K 152
>> zroot 34.2G 78.8G 0 61 5.68K 461K
>> ---------- ----- ----- ----- ----- ----- -----
>> DATA2 351T 11.3T 0 272 0 2.46M
>> DATA3 71.4T 73.6T 0 0 0 0
>> DATA4 115T 12.2T 0 0 0 0
>> zroot 34.2G 78.8G 0 47 0 200K
>> ---------- ----- ----- ----- ----- ----- -----
>=20
> It=E2=80=99s been doing these 272-300 Write IOPS on pool DATA2 since =
around 15:00 yesterday now and has mounted 3781 filesystems out of =
58295...
>=20
>=20
> A =E2=80=9Cprocstat -kka=E2=80=9D shows one =E2=80=9Czfs mount=E2=80=9D =
process currently doing:
>=20
>> 26508 102901 zfs - mi_switch+0xeb =
sleepq_wait+0x2c _cv_wait+0x16e txg_wait_synced+0xa5=20
>> dmu_tx_assign+0x48 zfs_rmnode+0x122 zfs_freebsd_reclaim+0x4e =
VOP_RECLAIM_APV+0x80 vgonel+0x213=20
>> vrecycle+0x46 zfs_freebsd_inactive+0xd VOP_INACTIVE_APV+0x80 =
vinactive+0xf0 vputx+0x2c3=20
>> zfs_unlinked_drain+0x1b8 zfsvfs_setup+0x5e zfs_mount+0x623 =
vfs_domount+0x573=20
>=20
>=20
>> # ps auxwww|egrep zfs
>> root 17 0.0 0.0 0 2864 - DL 14:53 7:03.54 =
[zfskern]
>> root 960 0.0 0.0 104716 31900 - Is 14:55 0:00.05 =
/usr/sbin/mountd -r -S /etc/exports /etc/zfs/exports
>> root 4390 0.0 0.0 9040 5872 - Is 14:57 0:00.02 =
/usr/sbin/zfsd
>> root 20330 0.0 0.0 22652 18388 - S 15:07 0:48.90 =
perl /usr/local/bin/parallel --will-cite -j 40 zfs mount {}
>> root 26508 0.0 0.0 7804 5316 - D 15:09 0:08.58 =
/sbin/zfs mount DATA2/filur04.it.liu.se/DATA/staff/nikca89
>> root 101 0.0 0.0 20148 14860 u1- I 14:55 0:00.88 =
/bin/bash /sbin/zfs-speedmount
>> root 770 0.0 0.0 6732 2700 0 S+ 09:45 0:00.00 =
egrep zfs
>=20
> (=E2=80=9Czfs-speedmount=E2=80=9D is a locally developed script that =
runs multiple =E2=80=9Czfs mount=E2=80=9D commands in parallel - speeds =
up mounting of filesystems a lot on this server _a lot_ (normally), =
since =E2=80=9Czfs mount=E2=80=9D didn=E2=80=99t use to mount stuff in =
parallell before, took multiple hours when rebooting servers).
>=20
>=20
> A google-search found stuff about zfs_unlinked_drain improvements in =
Nexenta and Linux ZFS:
>=20
>> https://github.com/zfsonlinux/zfs/pull/8142/commits =
<https://github.com/zfsonlinux/zfs/pull/8142/commits>
>=20
> Anyone know if this (or similar) fixes are in FreeBSD ZFS =
(11.3-RELEASE-p3)?
>=20
>=20
> - Peter
>=20
> _______________________________________________
> freebsd-fs@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
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To: freebsd-current@FreeBSD.org, freebsd-stable@FreeBSD.org,
freebsd-fs@FreeBSD.org
From: Andriy Gapon <avg@FreeBSD.org>
Subject: ZFS with 32-bit, non-x86 kernel
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Does anyone use ZFS with a 32-bit kernel, that is also not i386 ?
If you do, could you please let me know? Along with uname -rmp output.
Thank you!
--
Andriy Gapon
From owner-freebsd-fs@freebsd.org Fri Oct 4 16:24:11 2019
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From: Alan Somers <asomers@freebsd.org>
Date: Fri, 4 Oct 2019 10:23:57 -0600
Message-ID: <CAOtMX2hFQnnfqKSyzo7LDdmLoc==_wrxFB6fASuxgN=d=Tjk+A@mail.gmail.com>
Subject: Revisiting the ZFS test suite
To: freebsd-testing <freebsd-testing@freebsd.org>,
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My employment status changed last week, and I find myself once again
working on ZFS. It's hard to have confidence in any changes without a
solid test suite, so my main task right now is to fix the problems in
FreeBSD's ZFS test suite. Our most recent run had 64 failed tests and 99
skipped ones; let's get those down to 0 and something small, respectively.
https://ci.freebsd.org/job/FreeBSD-head-amd64-test_zfs/3880/testReport/
Would anybody be interested to review my changes to the test suite? It's
not terrible if I have to commit without review; I can't possibly break
anything but the test suite itself.
-Alan
From owner-freebsd-fs@freebsd.org Sat Oct 5 02:58:43 2019
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Subject: [Bug 233849] r339008 broke repquota on UFS
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--- Comment #16 from johan liet <johan.liet-freebsd@homeunix.nl> ---
quotacheck has the same problem. It only works with quotaoff.
--=20
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On Fri, Oct 04, 2019 at 05:05:25PM +0300, Andriy Gapon wrote:
>
> Does anyone use ZFS with a 32-bit kernel, that is also not i386 ?
> If you do, could you please let me know? Along with uname -rmp output.
> Thank you!
[51]wb1# uname -rmp
12.0-RELEASE arm armv7
It is a wandboard qaud with iMX6 and 2G RAM.
I'm using two uSD cards with zroot.
I'm also using the same setup on a raspberry Pi1:
[13]time1# uname -rmp
12.0-RELEASE arm armv6
But 512MB RAM are to low for zroot.
It technically does work, but hoks up the CPU in arc_reclaim_thread when
a scrub runs and since it takes forever it always runs.
last pid: 80786; load averages: 6.56, 5.86, 5.75 up 185+05:51:55 11:10:04
372 threads: 5 running, 349 sleeping, 18 waiting
CPU: 0.1% user, 0.0% nice, 86.9% system, 3.8% interrupt, 9.2% idle
Mem: 4960K Active, 38M Inact, 128M Wired, 259M Free
ARC: 24M Total, 8591K MFU, 8896K MRU, 34K Anon, 251K Header, 6888K Other
2676K Compressed, 74M Uncompressed, 28.31:1 Ratio
Swap:
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU COMMAND
8 root -8 - 0 96K arc_re 1597.2 53.94% zfskern{arc_reclaim_thread}
10 root 155 ki31 0 8192 RUN 1765.3 9.26% idle
0 root -8 - 0 2064K - 75.7H 2.63% kernel{dp_sync_taskq}
11 root -80 - 0 144K WAIT 67.8H 1.88% intr{intc0,28: bcm_dma0}
20 root -8 - 0 8192 mmcreq 39.0H 1.31% mmcsd0: mmc/sd card
12 root -8 - 0 24K - 27.4H 0.87% geom{g_down}
11 root -60 - 0 144K WAIT 28.6H 0.74% intr{swi4: clock (0)}
11 root -88 - 0 144K WAIT 21.1H 0.66% intr{intc0,70: +}
12 root -8 - 0 24K - 19.3H 0.64% geom{g_up}
[16]time1# zpool status
pool: zroot
state: ONLINE
scan: scrub in progress since Mon Jun 10 03:58:19 2019
34.0G scanned at 3.52K/s, 867M issued at 89/s, 1.77G total
0 repaired, 47.78% done, no estimated completion time
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
diskid/DISK-0000081Cs2a ONLINE 0 0 0
da0s2a ONLINE 0 0 0
errors: No known data errors
--
B.Walter <bernd@bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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Subject: [Bug 233849] r339008 broke repquota on UFS
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--- Comment #17 from johan liet <johan.liet-freebsd@homeunix.nl> ---
I did the patch for 11.3-RELEASE-p3 on quotafile.c and compiled it, but it
still didn't worked.
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
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Mark Linimon <linimon@FreeBSD.org> changed:
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----------------------------------------------------------------------------
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 16:53:06 +0000
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Alan Somers <asomers@FreeBSD.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |asomers@FreeBSD.org
--- Comment #1 from Alan Somers <asomers@FreeBSD.org> ---
Here are a few suggestions:
1) Did you set the cachefile property on the second pool to "none"? If so,
that's the main reason why import is taking so long, because ZFS needs to p=
robe
every geom provider. If you set the cachefile property to default then your
pool will be imported at boot time, but the import will happen quickly.
2) What is the setting of vfs.zfs.vol.recursive? If it's non-zero, that mi=
ght
be contributing to your problem.
3) Are you exposing the zvols as GEOM providers or simple block devices? I
think setting vfs.zfs.vol.mode to 2 or 3 should help you. (1=3Dgeom, 2=3Dd=
ev,
3=3Dnone). Of course, ctld won't work if you set it to 3.
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 18:12:09 +0000
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--- Comment #2 from Martin Birgmeier <d8zNeCFG@aon.at> ---
The settings are ("hal.5" is the second pool):
[0]# zpool get cachefile hal.5
NAME PROPERTY VALUE SOURCE
hal.5 cachefile - default
[0]#=20
But I guess since I usually have it exported when unused any traces of it a=
re
cleared from the cache, leading to a re-scan of all devices on the next imp=
ort?
[0]# sysctl vfs.zfs.vol.recursive
vfs.zfs.vol.recursive: 0
[0]#=20
[0]# sysctl vfs.zfs.vol.mode
vfs.zfs.vol.mode: 1
[0]#=20
I did not know about this setting at all. Where can I read about it? 3 won't
work since I am exporting most of them as iSCSI block devices via ctld. Do =
you
think setting it to 2 would stop scanning them during zpool import? If it is
"dev" as you say, and the import looks at all devs, this would not help I
assume?
Thanks for assisting with this.
-- Martin
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
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--- Comment #3 from Alan Somers <asomers@FreeBSD.org> ---
To learn more about vfs.zfs.vol.mode, read zfs(8) and search for "volmode".=
=20
Setting it to 2 ought to stop ZFS from scanning zvols during import, because
ZFS can only use geom devices as disks, not arbitrary device nodes. Howeve=
r, I
don't know if ctld will be happy about that.
HOWEVER, I think there may be a bug here. When vfs.zfs.vol.recursive is 0,=
ZFS
isn't supposed to taste zvols when importing a pool. But catch is that ZFS=
has
to taste disks twice: once from userspace and once from kernelspace. I thi=
nk
the userspace part is missing the check to exclude zvols.
To test, run this command. It will measure how much time ZFS takes to taste
devices from userspace, and how much time the kernel module spends importing
devices. If my hunch is correct, you're spending most of your time tasting
from userspace.
sudo dtrace -n 'pid$target::zpool_search_import:entry {trace(timestamp);}' =
-n
'pid$target::zpool_search_import:return {trace(timestamp);}' -n
'pid$target::zfs_ioctl:entry {trace(timestamp)}' -n
'pid$target::zfs_ioctl:return {trace(timestamp)}' -c "zpool import hal.5".
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 19:02:48 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D241083
--- Comment #4 from Martin Birgmeier <d8zNeCFG@aon.at> ---
This is the result:
[0]# sudo dtrace -n 'pid$target::zpool_search_import:entry {trace(timestamp=
);}'
-n 'pid$target::zpool_search_import:return {trace(timestamp);}' -n
'pid$target::zfs_ioctl:entry {trace(timestamp)}' -n
'pid$target::zfs_ioctl:return {trace(timestamp)}' -c "zpool import hal.5"=
=20=20=20=20=20=20=20
dtrace: description 'pid$target::zpool_search_import:entry ' matched 1 probe
dtrace: description 'pid$target::zpool_search_import:return ' matched 1 pro=
be
dtrace: description 'pid$target::zfs_ioctl:entry ' matched 1 probe
dtrace: description 'pid$target::zfs_ioctl:return ' matched 1 probe
CPU ID FUNCTION:NAME
3 49088 zpool_search_import:entry 42976262797132
3 49089 zpool_search_import:return 42976263261730
0 49090 zfs_ioctl:entry 43041357153847
0 49091 zfs_ioctl:return 43041357158293
dtrace: pid 58369 has exited
[0]#=20
Thanks again.
-- Martin
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 19:06:59 +0000
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--- Comment #5 from Alan Somers <asomers@FreeBSD.org> ---
That didn't take very long for either step. What was the total runtime of
"zpool import"?
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
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--- Comment #6 from Martin Birgmeier <d8zNeCFG@aon.at> ---
1:22 (82 seconds) according to zsh history.
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
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--- Comment #7 from Alan Somers <asomers@FreeBSD.org> ---
Well, there goes that theory. Could you please try again with this dtrace
script? The output will be large, so pipe it to a file.
sudo dtrace -n 'profile-97 /pid =3D=3D $target/ {@[ustack()] =3D count(); }=
' -c
"zpool import hal.5"
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
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--- Comment #8 from Martin Birgmeier <d8zNeCFG@aon.at> ---
Created attachment 208125
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D208125&action=
=3Dedit
stderr output
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 20:07:21 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D241083
--- Comment #9 from Martin Birgmeier <d8zNeCFG@aon.at> ---
Created attachment 208126
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D208126&action=
=3Dedit
stdout
[0]# dtrace -n 'profile-97 /pid =3D=3D $target/ {@[ustack()] =3D count(); }=
' -c
"zpool import hal.5" > /usr/tmp/bug-241083.1.stdout 2>
/usr/tmp/bug-241083.1.stderr
[0]#=20
Strangely enough, the command now took only 13 seconds to complete.
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 20:19:12 +0000
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--- Comment #10 from Martin Birgmeier <d8zNeCFG@aon.at> ---
Am doing a plain 'zpool export hal.5' right now; this returns nearly
immediately, but I see all zvols being accessed a long time after (using 'g=
stat
-a').
An iSCSI export is actively being used (but with a rather low I/O load) all=
the
time.
-- Martin
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
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--- Comment #11 from Martin Birgmeier <d8zNeCFG@aon.at> ---
Doing 'zpool import hal.5' again, this quickly returns (only 8 seconds). zv=
ols
again continue to be accessed for a whole while afterwards. Still doing that
while I was writing the previous sentences.
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 20:29:45 +0000
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--- Comment #12 from Martin Birgmeier <d8zNeCFG@aon.at> ---
Just did 'zpool export hal.5' again, returned nearly immediately, did not
access the zvols (according to 'gstat -a').
I don't understand what is going on here...
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 20:33:22 +0000
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--- Comment #13 from Martin Birgmeier <d8zNeCFG@aon.at> ---
Maybe because I/O on this server has dropped to such low levels that stuff =
is
still in some buffer cache?
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 20:46:41 +0000
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--- Comment #14 from Alan Somers <asomers@FreeBSD.org> ---
No, the process of tasting devices bypasses the buffer cache. Are you runn=
ing
zfsd? Because that may taste devices after the import is complete.
--=20
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Subject: [Bug 241083] zfs: zpool import seems to probe all snapshots
Date: Sat, 05 Oct 2019 22:47:10 +0000
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--- Comment #15 from Alan Somers <asomers@FreeBSD.org> ---
Created attachment 208127
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D208127&action=
=3Dedit
Speed up "zpool import" in the presence of many zvols
Please test this patch. Apply the patch, the build and install libzfs. No
need to build the kernel or the zpool command, nor any need to reboot. Then
time "zpool import nonexistent_pool_name" with vfs.zfs.vol.recursive set to
both 0 and 1.
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