Bug 255201

FreeBSD server.example.com 13.0-RELEASE FreeBSD 13.0-RELEASE #0 ea31abc26: Fri Apr  9 19:34:58 EEST 2021     root@server.cretaforce.gr:/usr/obj/usr/src/amd64.amd64/sys/GENERIC  amd64

panic: handle_written_inodeblock: Invalid link count -1 for inodedep 0xfffff8009b512c00

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Reading symbols from /boot/kernel/kernel...
Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug...

Unread portion of the kernel message buffer:
panic: handle_written_inodeblock: Invalid link count -1 for inodedep 0xfffff8009b512c00
cpuid = 0
time = 1618779673
KDB: stack backtrace:
#0 0xffffffff80c57345 at kdb_backtrace+0x65
#1 0xffffffff80c09d21 at vpanic+0x181
#2 0xffffffff80c09b93 at panic+0x43
#3 0xffffffff80efb285 at handle_written_inodeblock+0xb05
#4 0xffffffff80edee0a at softdep_disk_write_complete+0x5da
#5 0xffffffff80cc2cac at bufdone+0x22c
#6 0xffffffff80cbddbc at bufwrite+0x1dc
#7 0xffffffff80cc102f at vfs_bio_awrite+0x37f
#8 0xffffffff80cff213 at vn_fsync_buf+0x213
#9 0xffffffff80ced995 at sched_sync+0x465
#10 0xffffffff80bc7c5e at fork_exit+0x7e
#11 0xffffffff8106282e at fork_trampoline+0xe
Uptime: 6d21h3m7s
Dumping 4321 out of 65273 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
55      /usr/src/sys/amd64/include/pcpu_aux.h: No such file or directory.
(kgdb) #0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
#1  doadump (textdump=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:399
#2  0xffffffff80c09916 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:486
#3  0xffffffff80c09d90 in vpanic (fmt=<optimized out>, ap=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:919
#4  0xffffffff80c09b93 in panic (fmt=<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:843
#5  0xffffffff80efb285 in handle_written_inodeblock (
    inodedep=inodedep@entry=0xfffff8009b512c00,
    bp=bp@entry=0xfffffe006bd0a1d0, flags=flags@entry=4194304)
    at /usr/src/sys/ufs/ffs/ffs_softdep.c:11996
#6  0xffffffff80edee0a in softdep_disk_write_complete (bp=<optimized out>,
    bp@entry=<error reading variable: value is not available>)
    at /usr/src/sys/ufs/ffs/ffs_softdep.c:11505
#7  0xffffffff80cc2cac in buf_complete (bp=0xfffffe006bd0a1d0)
    at /usr/src/sys/sys/buf.h:450
#8  bufdone (bp=0xfffffe006bd0a1d0,
    bp@entry=<error reading variable: value is not available>)
    at /usr/src/sys/kern/vfs_bio.c:4492
#9  0xffffffff80cbddbc in bstrategy (bp=0xfffffe006bd0a1d0,
    bp@entry=<error reading variable: value is not available>)
    at /usr/src/sys/sys/buf.h:431
#10 bufwrite (bp=0xfffffe006bd0a1d0,
    bp@entry=<error reading variable: value is not available>)
    at /usr/src/sys/kern/vfs_bio.c:2302
#11 0xffffffff80cc102f in bwrite (bp=0xfffffe006bd0a1d0)
    at /usr/src/sys/sys/buf.h:419
#12 vfs_bio_awrite (bp=<optimized out>, bp@entry=0xfffffe006bd0a1d0)
    at /usr/src/sys/kern/vfs_bio.c:3233
#13 0xffffffff80cff213 in vn_fsync_buf (vp=<optimized out>,
    vp@entry=<error reading variable: value is not available>, waitfor=3,
    waitfor@entry=<error reading variable: value is not available>)
    at /usr/src/sys/kern/vfs_vnops.c:2760
#14 0xffffffff80ced995 in VOP_FSYNC (vp=0xfffff8000bba47a0, waitfor=3,
    td=0xfffffe015bd0ca00) at ./vnode_if.h:771
#15 sync_vnode (slp=<optimized out>, bo=<optimized out>,
    td=0xfffffe015bd0ca00) at /usr/src/sys/kern/vfs_subr.c:2583
#16 sched_sync () at /usr/src/sys/kern/vfs_subr.c:2685
#17 0xffffffff80bc7c5e in fork_exit (callout=0xffffffff80ced530 <sched_sync>,
    arg=0x0, frame=0xffffffff8242cb00) at /usr/src/sys/kern/kern_fork.c:1069
#18 <signal handler called>
(kgdb)