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Date:      Mon, 1 Apr 2013 23:31:05 +0800
From:      Martin Wilke <miwi@bsdhash.org>
To:        Fabian Keil <freebsd-listen@fabiankeil.de>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: panic: solaris assert: sa.sa_magic == 0x2F505A (0x4d5ea364 == 0x2f505a), file: /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c, line: 625
Message-ID:  <01C45826-C32E-49F3-8E4E-4FDDE01569AD@bsdhash.org>
In-Reply-To: <20130401161813.6e42e2a1@fabiankeil.de>
References:  <20130401161813.6e42e2a1@fabiankeil.de>

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I can confirm this problem see the same.

- Martin

On Apr 1, 2013, at 10:18 PM, Fabian Keil <freebsd-listen@fabiankeil.de> =
wrote:

> I got the following panic on 10.0-CURRENT from two days ago
> while receiving an incremental snapshot to a certain pool:
>=20
> (kgdb) where
> #0  doadump (textdump=3D0) at pcpu.h:229
> #1  0xffffffff8031a3ce in db_dump (dummy=3D<value optimized out>, =
dummy2=3D0, dummy3=3D0, dummy4=3D0x0) at =
/usr/src/sys/ddb/db_command.c:543
> #2  0xffffffff80319eca in db_command (last_cmdp=3D<value optimized =
out>, cmd_table=3D<value optimized out>, dopager=3D1) at =
/usr/src/sys/ddb/db_command.c:449
> #3  0xffffffff80319c82 in db_command_loop () at =
/usr/src/sys/ddb/db_command.c:502
> #4  0xffffffff8031c5d0 in db_trap (type=3D<value optimized out>, =
code=3D0) at /usr/src/sys/ddb/db_main.c:231
> #5  0xffffffff805d0da3 in kdb_trap (type=3D3, code=3D0, tf=3D<value =
optimized out>) at /usr/src/sys/kern/subr_kdb.c:654
> #6  0xffffffff8087fdc3 in trap (frame=3D0xffffff80dc9d6520) at =
/usr/src/sys/amd64/amd64/trap.c:579
> #7  0xffffffff80869cb2 in calltrap () at exception.S:228
> #8  0xffffffff805d058e in kdb_enter (why=3D0xffffffff80a47e7a "panic", =
msg=3D<value optimized out>) at cpufunc.h:63
> #9  0xffffffff80599216 in panic (fmt=3D<value optimized out>) at =
/usr/src/sys/kern/kern_shutdown.c:747
> #10 0xffffffff8130323f in assfail3 (a=3D<value optimized out>, =
lv=3D<value optimized out>, op=3D<value optimized out>, rv=3D<value =
optimized out>, f=3D<value optimized out>, l=3D<value optimized out>)
>    at =
/usr/src/sys/modules/opensolaris/../../cddl/compat/opensolaris/kern/openso=
laris_cmn_err.c:89
> #11 0xffffffff8117924e in zfs_space_delta_cb (bonustype=3D<value =
optimized out>, data=3D0xffffff8015eeb8c0, userp=3D0xfffffe004261c640, =
groupp=3D0xfffffe004261c648)
>    at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
zfs_vfsops.c:625
> #12 0xffffffff8110003b in dmu_objset_userquota_get_ids =
(dn=3D0xfffffe004261c358, before=3D0, tx=3D<value optimized out>) at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dmu_objset.c:1249
> #13 0xffffffff811071b6 in dnode_sync (dn=3D0xfffffe004261c358, =
tx=3D0xfffffe00186e1300) at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dnode_sync.c:554
> #14 0xffffffff810ff98b in dmu_objset_sync_dnodes =
(list=3D0xfffffe00691a5250, newlist=3D<value optimized out>, tx=3D<value =
optimized out>)
>    at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dmu_objset.c:910
> #15 0xffffffff810ff825 in dmu_objset_sync (os=3D0xfffffe00691a5000, =
pio=3D<value optimized out>, tx=3D0xfffffe00186e1300)
>    at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dmu_objset.c:1027
> #16 0xffffffff8110cb0d in dsl_dataset_sync (ds=3D0xfffffe001f3d0c00, =
zio=3D0x780, tx=3D0xfffffe00186e1300) at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dsl_dataset.c:1411
> #17 0xffffffff8111399a in dsl_pool_sync (dp=3D0xfffffe0069ec4000, =
txg=3D<value optimized out>) at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dsl_pool.c:409
> #18 0xffffffff8112f0ee in spa_sync (spa=3D0xfffffe0050f00000, =
txg=3D3292) at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
spa.c:6328
> #19 0xffffffff81137c45 in txg_sync_thread (arg=3D0xfffffe0069ec4000) =
at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
txg.c:493
> #20 0xffffffff80569c1a in fork_exit (callout=3D0xffffffff811378d0 =
<txg_sync_thread>, arg=3D0xfffffe0069ec4000, frame=3D0xffffff80dc9d6c00) =
at /usr/src/sys/kern/kern_fork.c:991
> #21 0xffffffff8086a1ee in fork_trampoline () at exception.S:602
> #22 0x0000000000000000 in ?? ()
> Current language:  auto; currently minimal
> (kgdb) f 12
> #12 0xffffffff8110003b in dmu_objset_userquota_get_ids =
(dn=3D0xfffffe004261c358, before=3D0, tx=3D<value optimized out>) at =
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/=
dmu_objset.c:1249
> 1249		error =3D =
used_cbs[os->os_phys->os_type](dn->dn_bonustype, data,
> (kgdb) p *dn
> $1 =3D {dn_struct_rwlock =3D {lock_object =3D {lo_name =3D =
0xffffffff811da0a9 "dn->dn_struct_rwlock", lo_flags =3D 40960000, =
lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, dn_link =3D =
{list_next =3D 0xfffffe0042629020,=20
>    list_prev =3D 0xfffffe00691a5360}, dn_objset =3D =
0xfffffe00691a5000, dn_object =3D 55652, dn_dbuf =3D 0xfffffe00427ad0e0, =
dn_handle =3D 0xfffffe0069f70128, dn_phys =3D 0xffffff8015eeb800,=20
>  dn_type =3D DMU_OT_PLAIN_FILE_CONTENTS, dn_bonuslen =3D 192, =
dn_bonustype =3D 44 ',', dn_nblkptr =3D 1 '\001', dn_checksum =3D 0 =
'\0', dn_compress =3D 0 '\0', dn_nlevels =3D 1 '\001', dn_indblkshift =3D =
14 '\016',=20
>  dn_datablkshift =3D 0 '\0', dn_moved =3D 0 '\0', dn_datablkszsec =3D =
10, dn_datablksz =3D 5120, dn_maxblkid =3D 0, dn_next_nblkptr =3D =
"\000\000\000", dn_next_nlevels =3D "\000\000\000",=20
>  dn_next_indblkshift =3D "\000\000\000", dn_next_bonustype =3D =
",\000\000", dn_rm_spillblk =3D "\000\000\000", dn_next_bonuslen =3D =
{192, 0, 0, 0}, dn_next_blksz =3D {0, 0, 0, 0}, dn_dbufs_count =3D 0, =
dn_dirty_link =3D {{
>      list_next =3D 0xfffffe00691a51f0, list_prev =3D =
0xfffffe0042628ab0}, {list_next =3D 0x0, list_prev =3D 0x0}, {list_next =
=3D 0x0, list_prev =3D 0x0}, {list_next =3D 0x0, list_prev =3D 0x0}}, =
dn_mtx =3D {lock_object =3D {
>      lo_name =3D 0xffffffff811da0bf "dn->dn_mtx", lo_flags =3D =
40960000, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, =
dn_dirty_records =3D {{list_size =3D 208, list_offset =3D 0, list_head =3D=
 {
>        list_next =3D 0xfffffe004261c470, list_prev =3D =
0xfffffe004261c470}}, {list_size =3D 208, list_offset =3D 0, list_head =3D=
 {list_next =3D 0xfffffe004261c490, list_prev =3D 0xfffffe004261c490}}, =
{list_size =3D 208,=20
>      list_offset =3D 0, list_head =3D {list_next =3D =
0xfffffe004261c4b0, list_prev =3D 0xfffffe004261c4b0}}, {list_size =3D =
208, list_offset =3D 0, list_head =3D {list_next =3D 0xfffffe004261c4d0,=20=

>        list_prev =3D 0xfffffe004261c4d0}}}, dn_ranges =3D {{avl_root =3D=
 0x0, avl_compar =3D 0xffffffff81106ec0 <free_range_compar>, avl_offset =
=3D 0, avl_numnodes =3D 0, avl_size =3D 40}, {avl_root =3D 0x0,=20
>      avl_compar =3D 0xffffffff81106ec0 <free_range_compar>, avl_offset =
=3D 0, avl_numnodes =3D 0, avl_size =3D 40}, {avl_root =3D 0x0, =
avl_compar =3D 0xffffffff81106ec0 <free_range_compar>, avl_offset =3D 0,=20=

>      avl_numnodes =3D 0, avl_size =3D 40}, {avl_root =3D 0x0, =
avl_compar =3D 0xffffffff81106ec0 <free_range_compar>, avl_offset =3D 0, =
avl_numnodes =3D 0, avl_size =3D 40}}, dn_allocated_txg =3D 3292, =
dn_free_txg =3D 0,=20
>  dn_assigned_txg =3D 0, dn_notxholds =3D {cv_description =3D =
0xffffffff811da0dd "dn->dn_notxholds", cv_waiters =3D 0}, dn_dirtyctx =3D =
DN_UNDIRTIED, dn_dirtyctx_firstset =3D 0x0, dn_tx_holds =3D {rc_count =3D =
0},=20
>  dn_holds =3D {rc_count =3D 3}, dn_dbufs_mtx =3D {lock_object =3D =
{lo_name =3D 0xffffffff811da0cb "dn->dn_dbufs_mtx", lo_flags =3D =
40960000, lo_data =3D 0, lo_witness =3D 0x0}, sx_lock =3D 1}, dn_dbufs =3D=
 {list_size =3D 224,=20
>    list_offset =3D 176, list_head =3D {list_next =3D =
0xfffffe004261c5f8, list_prev =3D 0xfffffe004261c5f8}}, dn_bonus =3D =
0x0, dn_have_spill =3D 0, dn_zio =3D 0xfffffe00695af000, dn_oldused =3D =
2560, dn_oldflags =3D 3,=20
>  dn_olduid =3D 1001, dn_oldgid =3D 1001, dn_newuid =3D 0, dn_newgid =3D =
0, dn_id_flags =3D 5, dn_zfetch =3D {zf_rwlock =3D {lock_object =3D =
{lo_name =3D 0xffffffff811dd156 "zf->zf_rwlock", lo_flags =3D 40960000, =
lo_data =3D 0,=20
>        lo_witness =3D 0x0}, sx_lock =3D 1}, zf_stream =3D {list_size =3D=
 112, list_offset =3D 88, list_head =3D {list_next =3D =
0xfffffe004261c688, list_prev =3D 0xfffffe004261c688}}, zf_dnode =3D =
0xfffffe004261c358,=20
>    zf_stream_cnt =3D 0, zf_alloc_fail =3D 0}}
>=20
> The incremental was created with:
> zfs send -i @2013-03-28_14:21 tank/home/fk@2013-04-01_12:31
> piped through mbuffer and received with:
> zfs receive -v -u -F rockbox/backup/r500/tank/home/fk
>=20
> Reading the incremental directly from a file triggers the
> panic as as well, but sometimes it takes more than one attempt.
>=20
> The offending sa_magic in the panic message is always the same.
>=20
> The receiving pool appears to be okay:
>=20
> fk@r500 ~ $zpool status rockbox
>  pool: rockbox
> state: ONLINE
> status: Some supported features are not enabled on the pool. The pool =
can
> 	still be used, but some features are unavailable.
> action: Enable all features using 'zpool upgrade'. Once this is done,
> 	the pool may no longer be accessible by software that does not =
support
> 	the features. See zpool-features(7) for details.
>  scan: scrub repaired 0 in 0h3m with 0 errors on Mon Apr  1 13:57:35 =
2013
> config:
>=20
> 	NAME                 STATE     READ WRITE CKSUM
> 	rockbox              ONLINE       0     0     0
> 	  label/rockbox.eli  ONLINE       0     0     0
>=20
> errors: No known data errors
>=20
> The feature that isn't yet enabled is lz4 but after upgrading
> a copy of the pool the panic was still reproducible. On the
> receiving side gzip compression is enabled.
>=20
> Fabian

+-----------------oOO--(_)--OOo-------------------------+
With best Regards,
       Martin Wilke (miwi_(at)_FreeBSD.org)

Mess with the Best, Die like the Rest




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