lock order reversal: 1st 0xffffff00753799d0 zfs (zfs) _at_ /usr/src/sys/kern/vfs_mount.c:1204 2nd 0xffffff005c62fd80 syncer (syncer) _at_ /usr/src/sys/kern/vfs_subr.c:2188 KDB: stack backtrace: db_trace_self_wrapper() at 0xffffffff801b1b9a = db_trace_self_wrapper+0x2a kdb_backtrace() at 0xffffffff80391542 = kdb_backtrace+0x32 _witness_debugger() at 0xffffffff803a561c = _witness_debugger+0x2c witness_checkorder() at 0xffffffff803a6a89 = witness_checkorder+0x959 __lockmgr_args() at 0xffffffff80346cef = __lockmgr_args+0x7cf vop_stdlock() at 0xffffffff803e2301 = vop_stdlock+0x51 VOP_LOCK1_APV() at 0xffffffff8057a0c0 = VOP_LOCK1_APV+0xf0 _vn_lock() at 0xffffffff803fe2a4 = _vn_lock+0x74 vrele() at 0xffffffff803f340b = vrele+0x13b dounmount() at 0xffffffff803ea646 = dounmount+0x386 unmount() at 0xffffffff803eac20 = unmount+0x2d0 syscall() at 0xffffffff805233b9 = syscall+0x319 Xfast_syscall() at 0xffffffff80509181 = Xfast_syscall+0xe1 This seems to be of the same kind as: http://sources.zabbadoz.net/freebsd/lor/236.html -- Andriy GaponReceived on Fri Dec 11 2009 - 13:16:59 UTC
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