File system panic on recent HEAD

[Matthias Schmidt]

Hi,

one of my boxes building pkgsrc HEAD packages on DF HEAD crashed last
night.  Seems like a panic related to the file system.  IIRC I saw the
panic before (about 2-3 times), but I was to busy to report it :/

Last system messages:

[...]
linux: syscall madvise is obsoleted or not implemented (pid=66339)
linux: syscall madvise is obsoleted or not implemented (pid=66339)
linux: syscall madvise is obsoleted or not implemented (pid=66339)
linux: syscall madvise is obsoleted or not implemented (pid=66339)

dev = #ad/0x1e130057, ino = 14540, fs = /build
panic: ffs_vfree: freeing free inode
mp_lock = 00000000; cpuid = 0
boot() called on cpu#0

syncing disks... Warning: vfsync_bp skipping dirty buffer
0xc455phd0\240\^A\^F\M^Xr\M^^{\M-:4\M--\^E\^Bo\^TB\M^U.M\2409\M^N+\M-9\M-P\M-
3\M^]{L\M-r9w\M-W\M^S\M-T\^Q\M^Z:\M^P'?\M-AM\^X\M-`\M^W}\M^_\^D\^YL7A\M-SM\M^\\^P\M^K\M^W\M-(?\M-}\M-z\M-@\M-<\M^]{w.\^UI\M-Z\^ZdG\M-7\
M-"z\M-~\M-~\M-Y^\M^Kxa\M^^{0-\M^]\M-k\M^H-\M-S\^Q\M^Z\^V\M^P'?\M-AM\M-P\M-?}1-\M^]\M-k\M^H-\M-S\^Q\M^Z\^V\M^P'?\M-AM\M^X\M-?\M-,}4
77 Warning: vfsync_bp skipping dirty buffer 0xc4554784
76 Warning: vfsync_bp skipping dirty buffer 0xc4554784
[...]

Writing a core dump to disk failed, so I cannot provide more
information.  The machine is running HEAD:

DragonFly pc12909 1.13.0-DEVELOPMENT DragonFly 1.13.0-DEVELOPMENT #6:
Mon May 19 10:35:40 CEST 2008
root at pc12909:/usr/obj/usr/src/sys/PC12909  i386

Regards

	Matthias