panic: ffs_blkfree: freeing free block

[Arjan van Leeuwen]

2007/10/1, Arjan van Leeuwen <avleeuwen at gmail.com>:
>
> Same here:
>
I'm getting this panic several times a day now. How can I help in further
debugging this?
Also, I note that everytime I panic, my currently opened files are reduced
to 0 bytes. Is that expected?
Arjan

#0 doadump () at pcpu.h:194
> #1 0x0000000000000004 in ?? ()
> #2 0xffffffff80472c09 in boot (howto=260)
>   at /usr/src/sys/kern/kern_shutdown.c:409
> #3 0xffffffff8047300d in panic (fmt=0x104 <Address 0x104 out of bounds>)
>   at /usr/src/sys/kern/kern_shutdown.c:563
> #4 0xffffffff80642135 in ffs_blkfree (ump=Variable "ump" is not available.
> )
>   at /usr/src/sys/ufs/ffs/ffs_alloc.c:1893
> #5 0xffffffff80651dc3 in indir_trunc (freeblks=0xffffff001544d500,
> dbn=Variable "dbn" is not available.
> )
>   at /usr/src/sys/ufs/ffs/ffs_softdep.c:2896
> #6 0xffffffff8065227f in handle_workitem_freeblocks (
>   freeblks=0xffffff001544d500, flags=0)
>   at /usr/src/sys/ufs/ffs/ffs_softdep.c:2746
> #7 0xffffffff80653853 in process_worklist_item (mp=0xffffff0001478978,
> flags=Variable "flags" is not available.
> )
>   at /usr/src/sys/ufs/ffs/ffs_softdep.c:963
> #8 0xffffffff80654867 in softdep_process_worklist (mp=0xffffff0001478978,
>   full=0) at /usr/src/sys/ufs/ffs/ffs_softdep.c:847
> #9 0xffffffff806567d7 in softdep_flush ()
>   at /usr/src/sys/ufs/ffs/ffs_softdep.c:758
> #10 0xffffffff80454723 in fork_exit (
>   callout=0xffffffff806566b0 <softdep_flush>, arg=0x0,
>   frame=0xffffffffac3a8c80) at /usr/src/sys/kern/kern_fork.c:796
> #11 0xffffffff806dbb8e in fork_trampoline ()
>   at /usr/src/sys/amd64/amd64/exception.S:397
>
>
> 2007/9/30, Rolf Witt <fbsd-st at donut.de >:
> >
> > Here the same (i386 old PIII with 640mb RAM, Sources from friday):
> >
> > > reboot after panic: ffs_blkfree: freeing free
> > block
> >
> > The kernel on my PC panics by reading the UPDATING-File with less after
> > executing a portsnap update.
> >
> > Sorry, i know thats are not very helpful informations, but i lost the
> > vmcore and all debug output.
> >
> > rowi
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>
>