Date: Wed, 1 Dec 2010 13:17:41 GMT From: Olivier Cochard-Labbé <olivier@cochard.me> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/152741: [lor] vfs_bio.c / ufs_dirhash.c Message-ID: <201012011317.oB1DHfxH028788@red.freebsd.org> Resent-Message-ID: <201012011320.oB1DK96J057960@freefall.freebsd.org>
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>Number: 152741 >Category: kern >Synopsis: [lor] vfs_bio.c / ufs_dirhash.c >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Dec 01 13:20:08 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Olivier Cochard-Labbé >Release: 8.1 >Organization: >Environment: FreeBSD d630.bsdrp.net 8.1-RELEASE-p2 FreeBSD 8.1-RELEASE-p2 #8: Wed Dec 1 11:25:17 CET 2010 root@d630.bsdrp.net:/usr/obj/usr/src/sys/DellD630 amd64 >Description: My dmesg show me this lor: lock order reversal: 1st 0xffffff8029423328 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2559 2nd 0xffffff000192b800 dirhash (dirhash) @ /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_xlock+0x55 ufsdirhash_acquire() at ufsdirhash_acquire+0x33 ufsdirhash_add() at ufsdirhash_add+0x19 ufs_direnter() at ufs_direnter+0x889 ufs_mkdir() at ufs_mkdir+0x42d VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93 kern_mkdirat() at kern_mkdirat+0x20e syscall() at syscall+0x2c2 Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (136, FreeBSD ELF64, mkdir), rip = 0x80072c14c, rsp = 0x7fffffffe7c8, rbp = 0x800a04050 --- >How-To-Repeat: Each boot. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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