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Subject: LOR: --- trap 0, rip = 0, rsp = 0xfffffe0237604b70, rbp = 0 ---
From: Oliver Pinter <oliver.pntr@gmail.com>
To: stable@freebsd.org
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Cc: bzeeb+freebsd+lor@zabbadoz.net, hunger@hunger.hu
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FreeBSD pandora-d 10.0-STABLE FreeBSD 10.0-STABLE #0
0c38d4b(stable/10): Tue Feb 18 19:13:35 CET 2014
root@pandora-d:/usr/obj/usr/src/sys/OP-DEBUG  amd64

lock order reversal:
 1st 0xfffff8001c0c79a0 syncer (syncer) @ /usr/src/sys/kern/vfs_subr.c:1720
 2nd 0xfffff8019d931418 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2101
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0237604560
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe0237604610
witness_checkorder() at witness_checkorder+0xd23/frame 0xfffffe02376046a0
__lockmgr_args() at __lockmgr_args+0x86c/frame 0xfffffe02376047d0
ffs_lock() at ffs_lock+0x84/frame 0xfffffe0237604820
VOP_LOCK1_APV() at VOP_LOCK1_APV+0xd2/frame 0xfffffe0237604850
_vn_lock() at _vn_lock+0xab/frame 0xfffffe02376048c0
vget() at vget+0x70/frame 0xfffffe0237604910
vfs_msync() at vfs_msync+0x99/frame 0xfffffe0237604970
sync_fsync() at sync_fsync+0xf7/frame 0xfffffe02376049a0
VOP_FSYNC_APV() at VOP_FSYNC_APV+0xca/frame 0xfffffe02376049d0
sched_sync() at sched_sync+0x34c/frame 0xfffffe0237604a70
fork_exit() at fork_exit+0x84/frame 0xfffffe0237604ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0237604ab0
--- trap 0, rip = 0, rsp = 0xfffffe0237604b70, rbp = 0 ---