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Date:      Thu, 01 Jun 2023 17:36:02 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 271772] ZFS: panic: VERIFY3(dev->l2ad_hand <= dev->l2ad_evict) failed
Message-ID:  <bug-271772-227-6NKfLGwonP@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-271772-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-271772-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D271772

Graham Perrin <grahamperrin@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|New                         |Open
           Keywords|                            |crash
           Assignee|bugs@FreeBSD.org            |fs@FreeBSD.org

--- Comment #1 from Graham Perrin <grahamperrin@freebsd.org> ---
Second of the five panics:=20

Dumptime: 2023-05-27 03:41:03 +0100

----

Dump header from device: /dev/ada0p2
  Architecture: amd64
  Architecture Version: 2
  Dump Length: 2013057024
  Blocksize: 512
  Compression: none
  Dumptime: 2023-05-27 03:41:03 +0100
  Hostname: mowa219-gjp4-8570p-freebsd
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 14.0-CURRENT #3 main-n263189-c2c9ac88c2bb-dirty: =
Sat
May 27 01:04:23 BST 2023
=20=20=20
grahamperrin@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GE=
NERIC
  Panic String: VERIFY3(dev->l2ad_hand <=3D dev->l2ad_evict) failed (670486=
5280
<=3D 6704857600)

  Dump Parity: 4196367481
  Bounds: 2
  Dump Status: good

----

=E2=80=A6

Unread portion of the kernel message buffer:
.
<118>.
<118>Terminated
<118>May 27 03:40:26 mowa219-gjp4-8570p-freebsd syslogd: exiting on signal =
15
<6>wlan0: link state changed to DOWN
<118>Enter full pathname of shell or RETURN for /bin/sh: # mount -uw /
<118># zfs mount -a
<118># zpool offli# zfs mount -a# zpool online august gpt/cache-august
<118># zpool online august gpt/cache2-august
<118># zpool online august gpt/cache3-august
panic: VERIFY3(dev->l2ad_hand <=3D dev->l2ad_evict) failed (6704865280 <=3D
6704857600)

cpuid =3D 2
time =3D 1685155263
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00c6bd8=
c90
vpanic() at vpanic+0x150/frame 0xfffffe00c6bd8ce0
spl_panic() at spl_panic+0x3a/frame 0xfffffe00c6bd8d40
l2arc_feed_thread() at l2arc_feed_thread+0x2401/frame 0xfffffe00c6bd8ef0
fork_exit() at fork_exit+0x80/frame 0xfffffe00c6bd8f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00c6bd8f30
--- trap 0x2f2a2072, rip =3D 0x949504154415f4d, rsp =3D 0x7265747061644120,=
 rbp =3D
0x52505f4253550965 ---
KDB: enter: panic
Uptime: 22m7s
Dumping 1919 out of 16260 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..=
91%

__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:59
59              __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru=
ct
pcpu,
(kgdb) #0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:59
#1  doadump (textdump=3Dtextdump@entry=3D1)
    at /usr/src/sys/kern/kern_shutdown.c:407
#2  0xffffffff80b5102c in kern_reboot (howto=3D260)
    at /usr/src/sys/kern/kern_shutdown.c:528
#3  0xffffffff80b5154d in vpanic (fmt=3D<optimized out>,=20
    ap=3Dap@entry=3D0xfffffe00c6bd8d20) at /usr/src/sys/kern/kern_shutdown.=
c:972
#4  0xffffffff8205727a in spl_panic (file=3D<optimized out>,=20
    func=3D<optimized out>, line=3D<unavailable>, fmt=3D<unavailable>)
    at /usr/src/sys/contrib/openzfs/module/os/freebsd/spl/spl_misc.c:103
#5  0xffffffff820b31e1 in l2arc_write_buffers (spa=3D0xfffffe0110b77000,=20
    dev=3D0x0, target_sz=3D16777216)
    at /usr/src/sys/contrib/openzfs/module/zfs/arc.c:9445
#6  l2arc_feed_thread (unused=3D<optimized out>)
    at /usr/src/sys/contrib/openzfs/module/zfs/arc.c:9559
#7  0xffffffff80b077b0 in fork_exit (
    callout=3D0xffffffff820b0de0 <l2arc_feed_thread>, arg=3D0x0,=20
    frame=3D0xfffffe00c6bd8f40) at /usr/src/sys/kern/kern_fork.c:1102
#8  <signal handler called>
#9  0x0949504154415f4d in ?? ()
Backtrace stopped: Cannot access memory at address 0x7265747061644120
(kgdb)=20

------------------------------------------------------------------------
ps -axlww

UID   PID  PPID C PRI NI   VSZ               RSS MWCHAN   STAT TT      TIME
COMMAND
  0     0     0 3 -16  0     0 18005604586963200 swapin   DLs   -   3:57.46
[kernel]
=E2=80=A6

--=20
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