Syncing disks, vnodes remaining...2 0 1 1 0 0 done All buffers synced. lock order reversal: 1st 0xc2cd6bdc ufs (ufs) @ /usr/src/sys/kern/vfs_mount.c:1194 2nd 0xc2ce7df4 syncer (syncer) @ /usr/src/sys/kern/vfs_subr.c:2206 KDB: stack backtrace: db_trace_self_wrapper(c0c41a71,c267da18,c089d065,c088ef6b,c0c44856,...) at db_tr ace_self_wrapper+0x26 kdb_backtrace(c088ef6b,c0c44856,c2914ad8,c2914ba8,c267da74,...) at kdb_backtrace +0x29 _witness_debugger(c0c44856,c2ce7df4,c0c4b806,c2914ba8,c0c4b687,...) at _witness_ debugger+0x25 witness_checkorder(c2ce7df4,9,c0c4b687,89e,0,...) at witness_checkorder+0x839 __lockmgr_args(c2ce7df4,80100,c2ce7e10,0,0,...) at __lockmgr_args+0x797 vop_stdlock(c267db7c,c08e7807,c0c4b687,80100,c2ce7d9c,...) at vop_stdlock+0x62 VOP_LOCK1_APV(c0d30b40,c267db7c,c084ea33,c0d58920,c2ce7d9c,...) at VOP_LOCK1_APV +0xa5 _vn_lock(c2ce7d9c,80100,c0c4b687,89e,c0ef88fc,...) at _vn_lock+0x5e vrele(c2ce7d9c,0,c0c4b05e,4ef,c088eebb,...) at vrele+0x142 dounmount(c2c77280,80000,c2956d80,c24b1230,0,...) at dounmount+0x3ce vfs_unmountall(c0c3e569,0,c0c3e613,12a,0,...) at vfs_unmountall+0x4e boot(c0d8ba10,0,c0c3e613,ad,c267dd2c,...) at boot+0x44f reboot(c2956d80,c267dcf8,4,c0c45a6f,c0d211e8,...) at reboot+0x4b syscall(c267dd38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (55, FreeBSD ELF32, reboot), eip = 0x8050fe3, esp = 0xbfbfe88c, ebp = 0xbfbfe968 --- lock order reversal: 1st 0xc2cd6bdc ufs (ufs) @ /usr/src/sys/kern/vfs_mount.c:1194 2nd 0xc2cb7ce8 devfs (devfs) @ /usr/src/sys/ufs/ffs/ffs_vfsops.c:1195 KDB: stack backtrace: db_trace_self_wrapper(c0c41a71,c267d9a4,c089d065,c088ef6b,c0c44856,...) at db_tr ace_self_wrapper+0x26 kdb_backtrace(c088ef6b,c0c44856,c2914ad8,c2914a08,c267da00,...) at kdb_backtrace +0x29 _witness_debugger(c0c44856,c2cb7ce8,c0c34055,c2914a08,c0c63964,...) at _witness_ debugger+0x25 witness_checkorder(c2cb7ce8,9,c0c63964,4ab,c2cb7d04,...) at witness_checkorder+0 x839 __lockmgr_args(c2cb7ce8,80400,c2cb7d04,0,0,...) at __lockmgr_args+0x797 vop_stdlock(c267db08,557,c267db00,80400,c2cb7c90,...) at vop_stdlock+0x62 VOP_LOCK1_APV(c0d1da00,c267db08,c2f33d9c,c0d58920,c2cb7c90,...) at VOP_LOCK1_APV +0xa5 _vn_lock(c2cb7c90,80400,c0c63964,4ab,c2cb8000,...) at _vn_lock+0x5e ffs_flushfiles(c2c77280,2,c2956d80,557,3,...) at ffs_flushfiles+0xa7 softdep_flushfiles(c2c77280,2,c2956d80,c0c4b687,8bc,...) at softdep_flushfiles+0 x2e ffs_unmount(c2c77280,80000,c267dbfc,4ef,c088eebb,...) at ffs_unmount+0x149 dounmount(c2c77280,80000,c2956d80,c24b1230,0,...) at dounmount+0x46d vfs_unmountall(c0c3e569,0,c0c3e613,12a,0,...) at vfs_unmountall+0x4e boot(c0d8ba10,0,c0c3e613,ad,c267dd2c,...) at boot+0x44f reboot(c2956d80,c267dcf8,4,c0c45a6f,c0d211e8,...) at reboot+0x4b syscall(c267dd38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (55, FreeBSD ELF32, reboot), eip = 0x8050fe3, esp = 0xbfbfe88c, ebp = 0xbfbfe968 --- Uptime: 2m48s Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex ATA state lock (ATA state lock) r = 0 (0xc2a42cd8) locked @ /usr/src/sys/dev/ata/ata-queue.c:201 exclusive sleep mutex ATA queue lock (ATA queue lock) r = 0 (0xc2a42cf0) locked @ /usr/src/sys/dev/ata/ata-queue.c:184 KDB: stack backtrace: db_trace_self_wrapper(c0c41a71,c267d830,c089d065,c0bf3202,b8,...) at db_trace_se lf_wrapper+0x26 kdb_backtrace(c0bf3202,b8,ffffffff,c0ecc07c,c267d868,...) at kdb_backtrace+0x29 _witness_debugger(c0c43e02,c267d87c,4,1,0,...) at _witness_debugger+0x25 witness_warn(5,0,c0c761cf,0,c2954d34,...) at witness_warn+0x1fd trap(c267d908) at trap+0x173 calltrap() at calltrap+0x6 --- trap 0xc, eip = 0xc05670c9, esp = 0xc267d948, ebp = 0xc267d960 --- ata_promise_sx4_command(c2f5a640,c9,c267d998,c084ea33,c2a42cd8,...) at ata_promi se_sx4_command+0x39 ata_begin_transaction(c2f5a640,0,c0bf3202,c9,c2a42cf0,...) at ata_begin_transact ion+0x7a ata_start(c2a90000,0,c0bf3202,5d,c2a42cf0,...) at ata_start+0x1db ata_queue_request(c2f5a640,0,101,0,e7000000,...) at ata_queue_request+0x493 ata_controlcmd(c2ae8b00,e7,0,0,0,...) at ata_controlcmd+0xd6 ad_shutdown(c2ae8b00,c2a14830,c0d20384) at ad_shutdown+0x4b device_shutdown(c2ae8b00,c2a90000,c267da98,c08841ec,c2a90000,...) at device_shut down+0x4c bus_generic_shutdown(c2a90000,c29e8830,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2a90000,c2a6cb00,c267dac0,c08841ec,c2a6cb00,...) at device_shut down+0x4c bus_generic_shutdown(c2a6cb00,c2a05830,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2a6cb00,c2971900,c267dae8,c08841ec,c2971900,...) at device_shut down+0x4c bus_generic_shutdown(c2971900,c2a01030,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2971900,c2a5aa80,c267db10,c08841ec,c2a5aa80,...) at device_shut down+0x4c bus_generic_shutdown(c2a5aa80,c29d9830,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2a5aa80,c2a5b300,c267db38,c08841ec,c2a5b300,...) at device_shut down+0x4c bus_generic_shutdown(c2a5b300,c298c030,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2a5b300,c2971e80,c267db60,c08841ec,c2971e80,...) at device_shut down+0x4c bus_generic_shutdown(c2971e80,c29da030,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2971e80,c2a44880,c267db88,c04cec55,c2a44880,...) at device_shut down+0x4c bus_generic_shutdown(c2a44880,4,c0be5aa1,2f3,c267dba0,...) at bus_generic_shutdo wn+0x19 acpi_shutdown(c2a44880,c29dc030,c0d20384) at acpi_shutdown+0x35 device_shutdown(c2a44880,c2952280,c267dbc8,c08841ec,c2952280,...) at device_shut down+0x4c bus_generic_shutdown(c2952280,c2a14030,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2952280,c2952c80,c267dbf0,c08841ec,c2952c80,...) at device_shut down+0x4c bus_generic_shutdown(c2952c80,c2979030,c0d20384) at bus_generic_shutdown+0x19 device_shutdown(c2952c80,2d,c081097f,c2932140,c290d440,...) at device_shutdown+0 x4c root_bus_module_handler(c2932180,2,0,67,c290bbc0,...) at root_bus_module_handler +0x13f module_shutdown(0,0,c0c3e613,1a7,0,...) at module_shutdown+0x78 boot(c0d8ba10,0,c0c3e613,ad,c267dd2c,...) at boot+0x75f reboot(c2956d80,c267dcf8,4,c0c45a6f,c0d211e8,...) at reboot+0x4b syscall(c267dd38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (55, FreeBSD ELF32, reboot), eip = 0x8050fe3, esp = 0xbfbfe88c, ebp = 0xbfbfe968 --- Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xc fault code = supervisor read, page not present instruction pointer = 0x20:0xc05670c9 stack pointer = 0x28:0xc267d948 frame pointer = 0x28:0xc267d960 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 1 (init) [thread pid 1 tid 100002 ] Stopped at ata_promise_sx4_command+0x39: movl 0xc(%eax),%esi