On Sun, Jan 31, 2010 at 8:36 PM, Aioanei Rares <bsdlisten_at_gmail.com> wrote: > > Hi everyone, > > I've been getting this several times but only now I could get a screenshot (it's a X-less VirtualBox host) > The message I'm getting is the following : > > lock order reversal : > 1st 0xffffff800a4c8698 bufwait (bufwait) _at_ /usr/src/sys/kern/vfs_bio.c:2559 > 2nd 0xffffff0002b81000 dirhash (dirhash) _at_ /usr/src/sys/ufs/ufs/ufs_dirhash.c:285 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > _witness_debugger() at _witness_debugger+0x2e > witness_checkorder() at witness_checkorder+0x81e > _sx_xlock() at _sx_lock+0x55 > ufsdirhash_acquire() at ufsdirhash_acquire+0x33 > ufsdirhash_add() at ufsdirhash_add+0x19 > ufs_direnter() at ufs_direnter+0x889 > ufs_makeinode() at ufs_makeinode+0x38a > VOP_CREATE_APV() at VOP_CREATE_APV+0x8d > vn_open_cred() at vn_open_cred+0x473 > kern_openat() at kern_openat+0x179 > syscall() at syscall+0x1ae > Xfast_syscall() at Xfast_syscall+0xe1 > --- syscall (5, FreeBSD ELF64, open), rip = 0x800c1095c, rsp = 0x7fffff1f9b38, rbp = 0x800e0a900 --- > That isn't a kernel fault but a LOR. you can read more on LOR at http://sources.zabbadoz.net/freebsd/lor.html. You got it because you compile your kernel with WITNESS option. Bye -- GianniReceived on Mon Feb 01 2010 - 09:15:20 UTC
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