Date: Sat, 3 May 2008 20:11:08 +0200 From: Henrik Brix Andersen <brix@FreeBSD.org> To: freebsd-current@freebsd.org Cc: bz@FreeBSD.org Subject: Yet another LOR Message-ID: <20080503181108.GA46836@tirith.brixandersen.dk>
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[-- Attachment #1 --] Stumbled across another LOR today: May 3 20:01:32 lothlorien kernel: lock order reversal: May 3 20:01:32 lothlorien kernel: 1st 0xc3ea6890 user map (user map) @ /usr/src/sys/vm/vm_map.c:2203 May 3 20:01:32 lothlorien kernel: 2nd 0xc5d19d78 ufs (ufs) @ /usr/src/sys/vm/vm_object.c:1039 May 3 20:01:32 lothlorien kernel: KDB: stack backtrace: May 3 20:01:32 lothlorien kernel: db_trace_self_wrapper(c0873465,e67ccaa8,c065781a,c0875b35,c5d19d78,...) at db_trace_self_wrapper+0x26 May 3 20:01:32 lothlorien kernel: kdb_backtrace(c0875b35,c5d19d78,c086a7e7,c086a7e7,c0891dd7,...) at kdb_backtrace+0x29 May 3 20:01:32 lothlorien kernel: witness_checkorder(c5d19d78,9,c0891dd7,40f,0,...) at witness_checkorder+0x6b0 May 3 20:01:32 lothlorien kernel: __lockmgr_args(c5d19d78,80400,c5d19d98,0,0,...) at __lockmgr_args+0x738 May 3 20:01:32 lothlorien kernel: ffs_lock(e67ccb98,0,9f,80400,c5d19d20,...) at ffs_lock+0x7d May 3 20:01:32 lothlorien kernel: VOP_LOCK1_APV(c08ddfe0,e67ccb98,c08f4a00,c5d19d20,80400,...) at VOP_LOCK1_APV+0xab May 3 20:01:32 lothlorien kernel: _vn_lock(c5d19d20,80400,c0891dd7,40f,2869a000,...) at _vn_lock+0x5e May 3 20:01:32 lothlorien kernel: vm_object_sync(c59ac380,42c0000,0,40000,0,...) at vm_object_sync+0x17a May 3 20:01:32 lothlorien kernel: vm_map_sync(c3ea684c,2869a000,286da000,0,0,...) at vm_map_sync+0x256 May 3 20:01:32 lothlorien kernel: msync(c442d660,e67cccfc,c,c08a0413,c06113f4,...) at msync+0x6c May 3 20:01:32 lothlorien kernel: syscall(e67ccd38) at syscall+0x279 May 3 20:01:32 lothlorien kernel: Xint0x80_syscall() at Xint0x80_syscall+0x20 May 3 20:01:32 lothlorien kernel: --- syscall (65, FreeBSD ELF32, msync), eip = 0x28556ddb, esp = 0xbfbfe51c, ebp = 0xbfbfe548 --- Not really sure how to debug these... Brix -- Henrik Brix Andersen <brix@FreeBSD.org> [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) Comment: GnuPG signed iEYEARECAAYFAkgcqrwACgkQv+Q4flTiePj67QCgvHUq6yS4N1t3+ko4lWLrvxV3 DyMAnj6Zlzful4TT22tfn9vpXe95pViI =EeC0 -----END PGP SIGNATURE-----
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