Panic with 4/30 sources: ffs_blkfree: freeing free block

[Doug Barton]

My other desktop system panic'ed tonight. If I can get the latest sources
to actually boot on my other system, I'll try the latest sources on this
system.

panic: ffs_blkfree: freeing free block
Uptime: 2d20h28m50s
Dumping 255 MB
---
Reading symbols from /boot/kernel/linux.ko...done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /boot/kernel/acpi.ko...done.
Loaded symbols for /boot/kernel/acpi.ko
Reading symbols from /boot/kernel/nfsclient.ko...done.
Loaded symbols for /boot/kernel/nfsclient.ko
Reading symbols from /boot/kernel/nvidia.ko...done.
Loaded symbols for /boot/kernel/nvidia.ko
#0  doadump () at /usr/Local/src-current/sys/kern/kern_shutdown.c:239
239             dumpsys(&dumper);
(kgdb) bt
#0  doadump () at /usr/Local/src-current/sys/kern/kern_shutdown.c:239
#1  0xc02286f2 in boot (howto=260)
    at /usr/Local/src-current/sys/kern/kern_shutdown.c:370
#2  0xc0228d13 in panic (fmt=0xc03df140 "ffs_blkfree: freeing free block")
    at /usr/Local/src-current/sys/kern/kern_shutdown.c:543
#3  0xc02bfece in ffs_blkfree (fs=0xc269b000, devvp=0xc2709b68, bno=17881136,
    size=16384, inum=4474898) at /usr/Local/src-current/sys/ufs/ffs/ffs_alloc.c:1768
#4  0xc02d1102 in indir_trunc (freeblks=0xc2979700, dbn=71519296, level=0, lbn=12,
    countp=0xcdce1be8) at /usr/Local/src-current/sys/ufs/ffs/ffs_softdep.c:2615
#5  0xc02d0e79 in handle_workitem_freeblocks (freeblks=0xc2979700, flags=0)
    at /usr/Local/src-current/sys/ufs/ffs/ffs_softdep.c:2480
#6  0xc02cdda3 in process_worklist_item (matchmnt=0x0, flags=0)
    at /usr/Local/src-current/sys/ufs/ffs/ffs_softdep.c:756
#7  0xc02cd9c0 in softdep_process_worklist (matchmnt=0x0)
    at /usr/Local/src-current/sys/ufs/ffs/ffs_softdep.c:622
#8  0xc0282860 in sched_sync () at /usr/Local/src-current/sys/kern/vfs_subr.c:1757
#9  0xc02117fa in fork_exit (callout=0xc02825a0 <sched_sync>, arg=0x0, frame=0x0)
    at /usr/Local/src-current/sys/kern/kern_fork.c:795


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