Date: Mon, 28 Feb 2011 14:47:29 GMT From: Robert Schulze <rs@bytecamp.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/155125: triple LOR in mkdir Message-ID: <201102281447.p1SElTFr097883@red.freebsd.org> Resent-Message-ID: <201102281450.p1SEoBxv053126@freefall.freebsd.org>
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>Number: 155125 >Category: kern >Synopsis: triple LOR in mkdir >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: Mon Feb 28 14:50:10 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Robert Schulze >Release: 8.2-PRERELEASE >Organization: >Environment: FreeBSD xxxxx 8.2-PRERELEASE FreeBSD 8.2-PRERELEASE #5: Thu Feb 24 14:54:06 CET 2011 root@xxxxx:/usr/obj/usr/src/sys/BAK amd64 >Description: lock order reversal: 1st 0xffffff0045766308 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2130 2nd 0xffffff81efade078 bufwait (bufwait) @ /usr/src/sys/ufs/ffs/ffs_softdep.c:6193 3rd 0xffffff015d7b9308 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2130 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x49 witness_checkorder() at witness_checkorder+0x7d3 __lockmgr_args() at __lockmgr_args+0xd0b ffs_lock() at ffs_lock+0xac VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x5d vget() at vget+0x6c vfs_hash_get() at vfs_hash_get+0xd1 ffs_vgetf() at ffs_vgetf+0x3d softdep_sync_metadata() at softdep_sync_metadata+0x43d ffs_syncvnode() at ffs_syncvnode+0x228 ffs_truncate() at ffs_truncate+0x37b ufs_direnter() at ufs_direnter+0x712 ufs_mkdir() at ufs_mkdir+0x426 VOP_MKDIR_APV() at VOP_MKDIR_APV+0xb9 kern_mkdirat() at kern_mkdirat+0x25c syscallenter() at syscallenter+0xe5 syscall() at syscall+0x55 Xfast_syscall() at Xfast_syscall+0xe2 --- syscall (136, FreeBSD ELF64, mkdir), rip = 0x80072250c, rsp = 0x7fffffffe5f8, rbp = 0x7fffffffea11 --- >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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