[Bug 261520] zfs: Panic when zfs sending to an encrypted dataset: VERIFY3(0 == dmu_bonus_hold_by_dnode(dn, FTAG, &db, flags)) failed (0 == 5)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261520

Palle Girgensohn <girgen@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |girgen@FreeBSD.org

--- Comment #2 from Palle Girgensohn <girgen@FreeBSD.org> ---
We're seeing a similar behaviour on a GENERIC kernel with version:

FreeBSD 13.1-STABLE #1 stable/13-n254017-664ccd7e3335: Thu Jan 26 14:22:27 CET
2023 

A crash during receive to an encrypted filesystem.


Unread portion of the kernel message buffer:
panic: VERIFY3(0 == zap_remove(mos, dsobj, spa_feature_table[f].fi_guid, tx))
failed (0 == 2)

cpuid = 26
time = 1686583749
KDB: stack backtrace:
#0 0xffffffff80c529d5 at kdb_backtrace+0x65
#1 0xffffffff80c05361 at vpanic+0x151
#2 0xffffffff82174e3a at spl_panic+0x3a
#3 0xffffffff821fc1e6 at dsl_dataset_deactivate_feature_impl+0xe6
#4 0xffffffff82200cb5 at dsl_dataset_clone_swap_sync_impl+0x135
#5 0xffffffff821e6ff2 at dmu_recv_end_sync+0x2a2
#6 0xffffffff82228244 at dsl_sync_task_sync+0xb4
#7 0xffffffff8221aa6b at dsl_pool_sync+0x42b
#8 0xffffffff8224f920 at spa_sync+0xb00
#9 0xffffffff82264271 at txg_sync_thread+0x281
#10 0xffffffff80bc1bee at fork_exit+0x7e
#11 0xffffffff81087cbe at fork_trampoline+0xe
Uptime: 136d15h27m59s
Dumping 16448 out of 130905
MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
55              __asm("movq %%gs:%P1,%0" : "=r" (td) : "n" (offsetof(struct
pcpu,
(kgdb) bt
#0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
#1  dump_savectx () at /usr/src/sys/kern/kern_shutdown.c:394
#2  0xffffffff80c04f58 in dumpsys (di=0x0) at
/usr/src/sys/x86/include/dump.h:87
#3  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:423
#4  kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:497
#5  0xffffffff80c053ce in vpanic (fmt=<optimized out>,
ap=ap@entry=0xfffffe02b8c04930)
    at /usr/src/sys/kern/kern_shutdown.c:930
#6  0xffffffff82174e3a in spl_panic (file=<optimized out>, func=<optimized
out>, line=<unavailable>, fmt=<unavailable>)
    at /usr/src/sys/contrib/openzfs/module/os/freebsd/spl/spl_misc.c:107
#7  0xffffffff821fc1e6 in dsl_dataset_deactivate_feature_impl
(ds=ds@entry=0xfffff81ae1019000, 
    f=f@entry=SPA_FEATURE_USEROBJ_ACCOUNTING, tx=tx@entry=0xfffff818a6d9dd00)
    at /usr/src/sys/contrib/openzfs/module/zfs/dsl_dataset.c:1116
#8  0xffffffff82200cb5 in dsl_dataset_clone_swap_sync_impl
(clone=0xfffff816447f0000, origin_head=<unavailable>, 
    tx=<unavailable>, tx@entry=0xfffff818a6d9dd00) at
/usr/src/sys/contrib/openzfs/module/zfs/dsl_dataset.c:4083
#9  0xffffffff821e6ff2 in dmu_recv_end_sync (arg=0xfffffe0267bb75b8,
tx=0xfffff818a6d9dd00)
    at /usr/src/sys/contrib/openzfs/module/zfs/dmu_recv.c:3233
#10 0xffffffff82228244 in dsl_sync_task_sync (dst=0xfffffe0267bb73a8,
tx=tx@entry=0xfffff818a6d9dd00)
    at /usr/src/sys/contrib/openzfs/module/zfs/dsl_synctask.c:248
#11 0xffffffff8221aa6b in dsl_pool_sync (dp=dp@entry=0xfffff81576ea8000,
txg=txg@entry=39350549)
    at /usr/src/sys/contrib/openzfs/module/zfs/dsl_pool.c:847
#12 0xffffffff8224f920 in spa_sync_iterate_to_convergence
(spa=0xfffffe02a4c77000, tx=0xfffff81cd3091400)
    at /usr/src/sys/contrib/openzfs/module/zfs/spa.c:9069
#13 spa_sync (spa=spa@entry=0xfffffe02a4c77000, txg=txg@entry=39350549)
    at /usr/src/sys/contrib/openzfs/module/zfs/spa.c:9287
#14 0xffffffff82264271 in txg_sync_thread (arg=arg@entry=0xfffff81576ea8000)
    at /usr/src/sys/contrib/openzfs/module/zfs/txg.c:591
#15 0xffffffff80bc1bee in fork_exit (callout=0xffffffff82263ff0
<txg_sync_thread>, arg=0xfffff81576ea8000, 
    frame=0xfffffe02b8c04f40) at /usr/src/sys/kern/kern_fork.c:1093
#16 <signal handler called>
#17 mi_startup () at /usr/src/sys/kern/init_main.c:322
#18 0xffffffff80f79919 in swapper () at /usr/src/sys/vm/vm_swapout.c:755
#19 0xffffffff8038a022 in btext () at /usr/src/sys/amd64/amd64/locore.S:80
(kgdb)

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