(unknown charset) Re: panic: softdep_deallocate_dependencies: dangling deps

On Thu, 13 Jan 2005, Christian Brueffer wrote:

> 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.

Version?  It doesn't appear to be HEAD, the line numbers are all offset by
too much.

System configuration? Kernel compile options?

There's one hop in here where a bufpointer gets converted to a NULL, which
I don't think would happen in an inline macro.  Unless ddb is
misinterpreting something.

> 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
>
>

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite_at_gumbysoft.com          |  www.FreeBSD.org