panic: softdep_deallocate_dependencies: dangling deps

Hi,

got this panic on a SMP machine tonight.  This is about the 10th time
I've gotten this specific panic during the last 2 years.  Unfortunately
I haven't found a way to trigger this yet.  Coredump is available for
further investigation.


panic: softdep_deallocate_dependencies: dangling deps
panic messages:
---
panic: softdep_deallocate_dependencies: dangling deps
cpuid = 1
KDB: enter: panic
Dumping 511 MB
 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304
320 336 352 368 384 400 416 432 448 464 480 496
---
#0  doadump () at pcpu.h:159
159     pcpu.h: No such file or directory.
        in pcpu.h
doadump () at pcpu.h:159
159     in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:159
#1  0xc0475620 in db_fncall (dummy1=0, dummy2=0, dummy3=-1066882173, 
    dummy4=0xd544a9ec "\030ªDÕ\207\223hÀ\004ªDÕ\bªDÕ\220\a")
    at /usr/home/build/src/sys/ddb/db_command.c:531
#2  0xc0475422 in db_command (last_cmdp=0xc0742124, cmd_table=0x0, aux_cmd_tablep=0xc070a468, 
    aux_cmd_tablep_end=0xc070a46c) at /usr/home/build/src/sys/ddb/db_command.c:349
#3  0xc04754ee in db_command_loop () at /usr/home/build/src/sys/ddb/db_command.c:455
#4  0xc047722c in db_trap (type=3, code=0) at /usr/home/build/src/sys/ddb/db_main.c:221
#5  0xc0556209 in kdb_trap (type=3, code=0, tf=0x1) at /usr/home/build/src/sys/kern/subr_kdb.c:418
#6  0xc06a55d0 in trap (frame=
      {tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = -1066419633, tf_esi
= 1, tf_ebp = -716919956, tf_isp = -716919976, tf_ebx = -716919912,
tf_edx = 0, tf_ecx = -1056755712, tf_eax = 18, tf_trapno = 3, tf_err =
0, tf_eip = -1068146901, tf_cs = 8, tf_eflags = 646, tf_esp =
-716919924, tf_ss = -1068243131})
    at /usr/home/build/src/sys/i386/i386/trap.c:576
#7  0xc069384a in calltrap () at /usr/home/build/src/sys/i386/i386/exception.s:140
#8  0x00000018 in ?? ()
#9  0x00000010 in ?? ()
#10 0x00000010 in ?? ()
#11 0xc06fba4f in ?? ()
#12 0x00000001 in ?? ()
#13 0xd544ab6c in ?? ()
#14 0xd544ab58 in ?? ()
#15 0xd544ab98 in ?? ()
#16 0x00000000 in ?? ()
#17 0xc1033000 in ?? ()
#18 0x00000012 in ?? ()
#19 0x00000003 in ?? ()
#20 0x00000000 in ?? ()
#21 0xc0555f2b in kdb_enter (msg=0x0) at cpufunc.h:56
#22 0xc053e745 in panic (fmt=0xc06fba4f "softdep_deallocate_dependencies: dangling deps")
    at /usr/home/build/src/sys/kern/kern_shutdown.c:550
#23 0xc0646256 in softdep_deallocate_dependencies (bp=0x0)
    at /usr/home/build/src/sys/ufs/ffs/ffs_softdep.c:5949
#24 0xc058280f in brelse (bp=0xcbff6f9c) at buf.h:431
#25 0xc0590430 in flushbuflist (blist=0xcbff6f9c, flags=0, vp=0xc1fac630, slpflag=0, slptimeo=0, 
    errorp=0x0) at /usr/home/build/src/sys/kern/vfs_subr.c:1101
#26 0xc0590109 in vinvalbuf (vp=0xc1fac630, flags=0, cred=0x0, td=0x0, slpflag=0, slptimeo=0)
    at /usr/home/build/src/sys/kern/vfs_subr.c:987
#27 0xc0592999 in vclean (vp=0xc1fac630, flags=8, td=0xc19e6c80)
    at /usr/home/build/src/sys/kern/vfs_subr.c:2479
#28 0xc0592f11 in vgonel (vp=0xc1fac630, td=0xc19e6c80) at /usr/home/build/src/sys/kern/vfs_subr.c:2701
#29 0xc058f3f2 in vlrureclaim (mp=0xc2395800) at pcpu.h:156
#30 0xc058f5a6 in vnlru_proc () at /usr/home/build/src/sys/kern/vfs_subr.c:598
#31 0xc0529848 in fork_exit (callout=0xc058f460 <vnlru_proc>, arg=0x0, frame=0xd544ad48)
    at /usr/home/build/src/sys/kern/kern_fork.c:807
#32 0xc06938ac in fork_trampoline () at /usr/home/build/src/sys/i386/i386/exception.s:209


- Christian

-- 
Christian Brueffer	chris_at_unixpages.org	brueffer_at_FreeBSD.org
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