Date: Mon, 01 Jun 2009 08:52:04 +0900 From: Randy Bush <randy@psg.com> To: current <current@freebsd.org> Subject: lor vfs_bio/ufs_dirhash Message-ID: <m2tz30vniz.wl%randy@psg.com>
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FreeBSD xx 8.0-CURRENT FreeBSD 8.0-CURRENT #3: Sun May 31 22:52:41 UTC 2009 root@xx:/usr/obj/usr/src/sys/XXXX amd64 i think this may be different than 261 <http://sources.zabbadoz.net/freebsd/lor/261.html>; sorry, this is all i got on serial console randy --- lock order reversal: 1st 0xffffff8052aba050 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2556 2nd 0xffffff0004f53000 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:275 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_xlock+0x55 ufsdirhash_acquire() at ufsdirhash_acquire+0x33 ufsdirhash_add() at ufsdirhash_add+0x19 ufs_direnter() at ufs_direnter+0x88b ufs_makeinode() at ufs_makeinode+0x31c VOP_CREATE_APV() at VOP_CREATE_APV+0xb1 vn_open_cred() at vn_open_cred+0x3fd kern_openat() at kern_openat+0x159 syscall() at syscall+0x1dd Xfast_syscall() at Xfast_syscall+0xd0 --- syscall (5, FreeBSD ELF64, open), rip = 0x800c0bfcc, rsp = 0x7fffffffe6f8, rbp = 0x7fffffffe860 --- -30-
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