Date: Thu, 18 Jan 2024 14:18:10 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 276420] zfs panic: VERIFY(zio->io_stage == ZIO_STAGE_VDEV_IO_START) failed Message-ID: <bug-276420-3630-Drt3b6tBak@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-276420-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-276420-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276420 --- Comment #1 from John F. Carr <jfc@mit.edu> --- Repeating the dd command, this time with bs=3D8m, caused another panic with= a different message but also related to tracking state of I/O. I have a crash dump this time. The new kernel is based off 4c4633fdffbe8e4b6d328c2bc9bb3edacc9ab50a. There are no substantial changes= to the ZFS kernel code in between. panic: VERIFY(zio->io_stall =3D=3D NULL) failed cpuid =3D 38 time =3D 1705586225 KDB: stack backtrace: #0 0xffffffff80c19745 at kdb_backtrace+0x65 #1 0xffffffff80bce982 at vpanic+0x152 #2 0xffffffff82a2a2ea at spl_panic+0x3a #3 0xffffffff82c201e8 at zio_execute+0x308 #4 0xffffffff80c2e0eb at taskqueue_run_locked+0xab #5 0xffffffff80c2f183 at taskqueue_thread_loop+0xd3 #6 0xffffffff80b88730 at fork_exit+0x80 #7 0xffffffff81061b7e at fork_trampoline+0xe #4 0xffffffff82a2a2ea in spl_panic (file=3D<optimized out>,=20 func=3D<optimized out>, line=3D<optimized out>, fmt=3D<unavailable>) at /usr/home/jfc/freebsd/src/sys/contrib/openzfs/module/os/freebsd/spl/spl_mis= c.c:107 ap =3D {{gp_offset =3D 40, fp_offset =3D 48,=20 overflow_arg_area =3D 0xfffffe03a6f8ae20,=20 reg_save_area =3D 0xfffffe03a6f8adc0}} #5 0xffffffff82c201e8 in __zio_execute (zio=3D0xfffff804582b19a0) at /usr/home/jfc/freebsd/src/sys/contrib/openzfs/module/zfs/zio.c:2175 stage =3D ZIO_STAGE_VDEV_IO_DONE pipeline =3D (ZIO_STAGE_VDEV_IO_START | ZIO_STAGE_VDEV_IO_DONE | ZIO_STAGE_VDEV_IO_ASSESS | ZIO_STAGE_DONE) #6 zio_execute (zio=3D<optimized out>) at /usr/home/jfc/freebsd/src/sys/contrib/openzfs/module/zfs/zio.c:2130 cookie =3D 0 #7 0xffffffff80c2e0eb in taskqueue_run_locked ( queue=3Dqueue@entry=3D0xfffff801afeafb00) at /usr/home/jfc/freebsd/src/sys/kern/subr_taskqueue.c:512 et =3D {et_link =3D {tqe_next =3D 0xfffffe03a6f8aec0,=20 tqe_prev =3D 0xffffffff80bdac78 <_sleep+712>}, et_td =3D 0x0,=20 et_section =3D {bucket =3D 0}, et_old_priority =3D 0 '\000'} tb =3D {tb_running =3D 0xfffff804582b1db0, tb_seq =3D 3579256,=20 tb_canceling =3D false, tb_link =3D {le_next =3D 0x0,=20 le_prev =3D 0xfffff801afeafb10}} task =3D 0xfffff804582b1db0 in_net_epoch =3D false pending =3D 1 The zio argument to __zio_execute is {io_bookmark =3D {zb_objset =3D 2437, zb_object =3D 1, zb_level =3D 0, zb_b= lkid =3D 3700975}, io_prop =3D { zp_checksum =3D ZIO_CHECKSUM_INHERIT, zp_compress =3D ZIO_COMPRESS_IN= HERIT, zp_complevel =3D 0 '\000',=20 zp_type =3D DMU_OT_NONE, zp_level =3D 0 '\000', zp_copies =3D 0 '\000= ', zp_dedup =3D 0,=20 zp_dedup_verify =3D 0, zp_nopwrite =3D 0, zp_encrypt =3D 0, zp_byteor= der =3D 0,=20 zp_salt =3D "\000\000\000\000\000\000\000", zp_iv =3D '\000' <repeats 11 times>,=20 zp_mac =3D '\000' <repeats 15 times>, zp_zpl_smallblk =3D 0}, io_type =3D ZIO_TYPE_WRITE,=20 io_child_type =3D ZIO_CHILD_VDEV, io_trim_flags =3D 0, io_cmd =3D 0,=20 io_priority =3D ZIO_PRIORITY_ASYNC_WRITE, io_reexecute =3D 0 '\000', io_state =3D "\001",=20 io_txg =3D 23709657, io_spa =3D 0xfffffe03a69f9000, io_bp =3D 0x0, io_bp_override =3D 0x0, io_bp_copy =3D { blk_dva =3D {{dva_word =3D {0, 0}}, {dva_word =3D {0, 0}}, {dva_word =3D {0, 0}}}, blk_prop =3D 0, blk_pad =3D { 0, 0}, blk_phys_birth =3D 0, blk_birth =3D 0, blk_fill =3D 0, blk_cksum =3D {zc_word =3D {0, 0, 0, 0}}},=20 io_parent_list =3D {list_size =3D 48, list_offset =3D 16, list_head =3D {list_next =3D 0xfffff802c327cd60,=20 list_prev =3D 0xfffff802c327cd60}}, io_child_list =3D {list_size =3D 48, list_offset =3D 32, list_head =3D { list_next =3D 0xfffff8068a043800, list_prev =3D 0xfffff8068a043800}}, io_logical =3D 0xfffff804899659a0, io_transform_stack =3D 0x0, io_ready =3D 0x0, io_children_ready =3D 0x0,=20 io_physdone =3D 0xffffffff82a7cd30 <arc_write_physdone>,=20 io_done =3D 0xffffffff82b71880 <vdev_raidz_child_done>, io_private =3D 0xfffff801623fc490,=20 io_prev_space_delta =3D 0, io_bp_orig =3D {blk_dva =3D {{dva_word =3D {0, 0}}, {dva_word =3D {0, 0= }}, {dva_word =3D {0, 0}}}, blk_prop =3D 0, blk_pad =3D {0, 0}, blk_phys_birth =3D 0, blk_birth =3D 0,=20 blk_fill =3D 0, blk_cksum =3D {zc_word =3D {0,= 0, 0, 0}}}, io_lsize =3D 4096, io_abd =3D 0xfffff801623fc4a8,=20 io_orig_abd =3D 0xfffff801623fc4a8, io_size =3D 4096, io_orig_size =3D 4096, io_vd =3D 0xfffffe03a6d7d000,=20 io_vsd =3D 0x0, io_vsd_ops =3D 0x0, io_metaslab_class =3D 0xfffff801623c2000, io_offset =3D 459490152448,=20 io_timestamp =3D 1564556504339, io_queued_timestamp =3D 1564556504259, io_target_timestamp =3D 0,=20 io_delta =3D 0, io_delay =3D 0, io_queue_node =3D {avl_child =3D {0x0, 0x0}, avl_pcb =3D 1}, io_offset_node =3D {avl_child =3D {0x0, 0x0}, avl_pcb =3D 1}, io_alloc_node =3D {avl_child =3D {0x0, 0x0}, avl_pcb =3D 0},=20 io_alloc_list =3D {zal_list =3D {list_size =3D 72, list_offset =3D 0, list_head =3D {list_next =3D 0xfffff804582= b1c98, list_prev =3D 0xfffff804582b1= c98}}, zal_size =3D 0},=20 io_flags =3D 3672192, io_stage =3D ZIO_STAGE_VDEV_IO_DONE,=20 io_pipeline =3D (ZIO_STAGE_VDEV_IO_START | ZIO_STAGE_VDEV_IO_DONE | ZIO_STAGE_VDEV_IO_ASSESS | ZIO_STAGE_DONE), io_orig_flags =3D 1048704, io_orig_stage =3D ZIO_STAGE_READY,=20 io_orig_pipeline =3D (ZIO_STAGE_VDEV_IO_START | ZIO_STAGE_VDEV_IO_DONE | ZIO_STAGE_VDEV_IO_ASSESS | ZIO_STAGE_DONE), io_pipeline_trace =3D (ZIO_STAGE_OPEN | ZIO_STAGE_VDEV_IO_START | ZIO_STAGE_VDEV_IO_ASSESS),=20 io_error =3D 0, io_child_error =3D {0, 0, 0, 0}, io_children =3D {{0, 1}, {0, 0}, {0, 0}, {0, 0}},=20 io_child_count =3D 1, io_phys_children =3D 0, io_parent_count =3D 1, io_stall =3D 0xfffff804582b1ce8,=20 io_gang_leader =3D 0x0, io_gang_tree =3D 0x0, io_executor =3D 0xfffff801b92c5000, io_waiter =3D 0x0,=20 io_bio =3D 0x0, io_lock =3D {lock_object =3D {lo_name =3D 0xffffffff82ca3c8d <.L.str.112+1> "zio->i= o_lock",=20 lo_flags =3D 577830912, lo_data =3D 0, lo_witness =3D 0= x0}, sx_lock =3D 18446735284676890624}, io_cv =3D { cv_description =3D 0xffffffff82caea62 <.L.str.113+1> "zio->io_cv", cv_waiters =3D 0}, io_allocator =3D 0,=20 io_cksum_report =3D 0x0, io_ena =3D 0, io_tqent =3D {tqent_task =3D {ta_link =3D {stqe_next =3D 0x0},=20 ta_pending =3D 0, ta_priority =3D 0 '\000', ta_flags =3D= 0 '\000',=20 ta_func =3D 0xffffffff82a2bd90 <taskq_run_ent>, ta_context =3D 0xfffff804582b1db0},=20 tqent_timeout_task =3D {q =3D 0x0, t =3D {ta_link =3D {stqe_next =3D 0x0}, ta_pending =3D 0,=20 ta_priority =3D 0 '\000', ta_flags =3D 0 '\= 000', ta_func =3D 0x0, ta_context =3D 0x0}, c =3D {c_links =3D { le =3D {le_next =3D 0x0, le_prev =3D 0x0}, sle =3D {sle_next =3D 0x0}, tqe =3D {tqe_next =3D 0x0,=20 tqe_prev =3D 0x0}}, c_time =3D 0, c_precision =3D 0, c_arg =3D 0x0, c_func =3D 0x0, c_lock =3D 0x0,=20 c_flags =3D 0, c_iflags =3D 0, c= _cpu =3D 0}, f =3D 0}, tqent_func =3D 0xffffffff82c1fee0 <zio_execute>,=20 tqent_arg =3D 0xfffff804582b19a0, tqent_id =3D 0, tqent_hash =3D {cle_next =3D 0x0, cle_prev =3D 0x0}, tqent_type =3D 0 '\000', tqent_registered =3D 0 '\000', tqent_cancelled =3D 0 '\000', tqent_rc =3D 0}} --=20 You are receiving this mail because: You are the assignee for the bug.=
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