Date: Wed, 12 Dec 2007 21:25:37 +0100 From: Philipp Ost <pj@smo.de> To: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: panic: ffs_blkfree: freeing free block on 7.0-PRE Message-ID: <476043C1.4020008@smo.de>
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Hi all,
I just got a panic on my 7.0-PRERELEASE box. Here's the backtrace:
# kgdb kernel.debug /var/crash/vmcore.0
[...]
Unread portion of the kernel message buffer:
handle_workitem_freeblocks: block count
dev = ad4s1f, block = 7475968, fs = /usr
panic: ffs_blkfree: freeing free block
Uptime: 4h21m56s
Physical memory: 1015 MB
Dumping 199 MB: 184 168 152 136 120 104 88 72 56 40 24 8
#0 doadump () at pcpu.h:195
195 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc058e783 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc058e97f in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3 0xc06bc2f3 in ffs_blkfree (ump=0xc3c62300, fs=0xc3f2d800,
devvp=0xc3e41aa0, bno=7475968, size=16384, inum=942840)
at /usr/src/sys/ufs/ffs/ffs_alloc.c:1893
#4 0xc06cfbc8 in indir_trunc (freeblks=0xc835e000, dbn=15127360, level=0,
lbn=12, countp=0xe4138c4c) at /usr/src/sys/ufs/ffs/ffs_softdep.c:2896
#5 0xc06cfe97 in handle_workitem_freeblocks (freeblks=0xc835e000, flags=0)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:2746
#6 0xc06d162e in process_worklist_item (mp=0xc3f3a538, flags=Variable
"flags" is not available.
)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:963
#7 0xc06d2651 in softdep_process_worklist (mp=0xc3f3a538, full=0)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:847
#8 0xc06d4aca in softdep_flush () at /usr/src/sys/ufs/ffs/ffs_softdep.c:758
#9 0xc056fda6 in fork_exit (callout=0xc06d4660 <softdep_flush>, arg=0x0,
frame=0xe4138d38) at /usr/src/sys/kern/kern_fork.c:796
#10 0xc0730740 in fork_trampoline () at
/usr/src/sys/i386/i386/exception.s:205
(kgdb) quit
#
uname reports the following:
FreeBSD herdubreid.x.y.de 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #0: Sun
Oct 21 19:27:53 CEST 2007
pj@herdubreid.x.y.de:/usr/obj/usr/src/sys/HERDUBREIDKERNEL i386
Yep, I know BETA4 is out, but I havn't had the time to update my system
since then.
Let me know if you need more information.
Regards,
Philipp
--
www.familie-ost.info/~pj
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