Mar 24 14:25:16 kernel: lock order reversal: Mar 24 14:25:16 kernel: 1st 0xc09cf6dc ufs (ufs) _at_ /usr/src/sys/kern/vfs_mount.c:1277 Mar 24 14:25:16 kernel: 2nd 0xc0100a30 devfs (devfs) _at_ /usr/src/sys/ufs/ffs/ffs_softdep.c:1908 Mar 24 14:25:16 kernel: stack backtrace: Mar 24 14:25:16 kernel: #0 0xb5c22421 at witness_debugger+0x81 Mar 24 14:25:16 kernel: #1 0xb5c22342 at witness_checkorder+0xd12 Mar 24 14:25:16 kernel: #2 0xb5b9b5d4 at __lockmgr_args+0xa64 Mar 24 14:25:16 kernel: #3 0xb5c784ad at vop_stdlock+0x4d Mar 24 14:25:16 kernel: #4 0xb618e7f7 at VOP_LOCK1_APV+0xd7 Mar 24 14:25:16 kernel: #5 0xb5c9c137 at _vn_lock+0xb7 Mar 24 14:25:16 kernel: #6 0xb5e9d648 at softdep_flushworklist+0x68 Mar 24 14:25:16 kernel: #7 0xb5ebc892 at ffs_sync+0x2b2 Mar 24 14:25:16 kernel: #8 0xb5c82955 at dounmount+0x6c5 Mar 24 14:25:16 kernel: #9 0xb5c82185 at sys_unmount+0x315 Mar 24 14:25:16 kernel: #10 0xb6155fa5 at syscall+0x3b5 Mar 24 14:25:16 kernel: #11 0xb6140ede at Xint0x80_syscall+0x2e umounting a sata filesystem, the above. Useful? aside: twice recently dropped to debugger upon shutdown. kb> [ or whatever ] any useful commands here? I thought 'st' but have not read about a procedure... That occured upon umount of a 2nd sata disk's filesystem(s). On a second note,Received on Sat Mar 25 2017 - 12:00:26 UTC
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