[Bug 216586] zfs panic: sa.sa_magic == 0x2F505A in zfs_space_delta_cb()

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216586

Andrey V. Elsukov <ae_at_FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |ae_at_FreeBSD.org

--- Comment #8 from Andrey V. Elsukov <ae_at_FreeBSD.org> ---
(In reply to Andriy Gapon from comment #7)
We hit this problem 2 times last week. One machine is based on 12.0, second one
is based on 13.0 (before ZoL migration). I looked at the ZoL code, it seems to
me, that the code didn't changed here. So, I think it is possible to get such
panic on the up to date OpenZFS too.

I have core dump from the one panic. Let me know if you are interested to see
something.

panic: solaris assert: sa.sa_magic == 0x2F505A (0xb656f0e0 == 0x2f505a), file:
/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c, line: 609
cpuid = 4
time = 1623060642
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe3fd9321780
vpanic() at vpanic+0x194/frame 0xfffffe3fd93217e0
panic() at panic+0x43/frame 0xfffffe3fd9321840
assfail3() at assfail3+0x2c/frame 0xfffffe3fd9321860
zfs_space_delta_cb() at zfs_space_delta_cb+0x100/frame 0xfffffe3fd93218a0
dmu_objset_userquota_get_ids() at dmu_objset_userquota_get_ids+0x1b7/frame
0xfffffe3fd93218f0
dnode_sync() at dnode_sync+0xa6/frame 0xfffffe3fd9321980
sync_dnodes_task() at sync_dnodes_task+0x92/frame 0xfffffe3fd93219c0
taskq_run() at taskq_run+0x10/frame 0xfffffe3fd93219e0
taskqueue_run_locked() at taskqueue_run_locked+0x147/frame 0xfffffe3fd9321a40
taskqueue_thread_loop() at taskqueue_thread_loop+0xb8/frame 0xfffffe3fd9321a70
fork_exit() at fork_exit+0x86/frame 0xfffffe3fd9321ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe3fd9321ab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
Uptime: 14d8h32m53s
Dumping 14912 out of 261996
MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

__curthread () at ./machine/pcpu.h:232
232     ./machine/pcpu.h: No such file or directory.
(kgdb) bt
#0  __curthread () at ./machine/pcpu.h:232
#1  doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:318
#2  0xffffffff80aa31c3 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:386
#3  0xffffffff80aa36ae in vpanic (fmt=<optimized out>, ap=0xfffffe3fd9321820)
at /usr/src/sys/kern/kern_shutdown.c:779
#4  0xffffffff80aa34d3 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:710
#5  0xffffffff822df23c in assfail3 (a=<unavailable>, lv=<unavailable>,
op=<unavailable>, rv=<unavailable>, f=<unavailable>, l=<optimized out>)
    at /usr/src/sys/cddl/compat/opensolaris/kern/opensolaris_cmn_err.c:91
#6  0xffffffff8209e9c0 in zfs_space_delta_cb (bonustype=<optimized out>,
data=0xfffff803e64b2f40, userp=0xfffff8052a3b2278, groupp=0xfffff8052a3b2280)
    at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:609
#7  0xffffffff8200d917 in dmu_objset_userquota_get_ids (dn=0xfffff8052a3b2000,
before=0, tx=<optimized out>)
    at
/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c:1592
#8  0xffffffff82015396 in dnode_sync (dn=0xfffff8052a3b2000,
tx=0xfffff803ae49e800) at
/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dnode_sync.c:570
#9  0xffffffff8200d192 in dmu_objset_sync_dnodes (list=0xfffff801763bb420,
tx=0xfffff803ae49e800)
    at
/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c:1093
#10 sync_dnodes_task (arg=0xfffff82419cdd260) at
/usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c:1160
#11 0xffffffff81fd3750 in taskq_run (arg=0xfffff801c66d08d0,
pending=<unavailable>) at
/usr/src/sys/cddl/compat/opensolaris/kern/opensolaris_taskq.c:109
#12 0xffffffff80afc0e7 in taskqueue_run_locked (queue=0xfffff8016b01cd00) at
/usr/src/sys/kern/subr_taskqueue.c:463
#13 0xffffffff80afd2c8 in taskqueue_thread_loop (arg=<optimized out>) at
/usr/src/sys/kern/subr_taskqueue.c:755
#14 0xffffffff80a65796 in fork_exit (callout=0xffffffff80afd210
<taskqueue_thread_loop>, arg=0xfffff801281c3f20, frame=0xfffffe3fd9321ac0)
    at /usr/src/sys/kern/kern_fork.c:1038
#15 <signal handler called>

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