Crash when issueing shutdown -r now

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Hi,

CVSupped at 6.15 UTC this evening (20.15 CET), buildworld and the lot. When 
issueing the command shutdown -r now I get the below crash.

if more information is required I am more than happy to provide.

Cheers

Patrick

FreeBSD hulk.superhero.nl 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Wed Apr 18 
21:56:58 CEST 2007     root at hulk.superhero.nl:/usr/obj/usr/src/sys/GENERIC  
amd64


Apr 18 22:29:09 hulk shutdown: reboot by root:
Apr 18 22:29:11 hulk syslogd: exiting on signal 15
Apr 18 22:30:54 hulk syslogd: kernel boot file is /boot/kernel/kernel
Apr 18 22:30:54 hulk kernel: Waiting (max 60 seconds) for system process 
`vnlru' to stop...done
Apr 18 22:30:54 hulk kernel: Waiting (max 60 seconds) for system process 
`syncer' to stop...
Apr 18 22:30:54 hulk kernel: Syncing disks, vnodes remaining...1 0 1 0 0 done
Apr 18 22:30:54 hulk kernel: Waiting (max 60 seconds) for system process 
`bufdaemon' to stop...done
Apr 18 22:30:54 hulk kernel: All buffers synced.
Apr 18 22:30:54 hulk kernel: Uptime: 9m37s
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:
559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:
559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:
559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:
559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:
559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:
559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: Waiting on "ATA request done" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: _cv_timedwait() at _cv_timedwait+0x9e
Apr 18 22:30:54 hulk kernel: _sema_timedwait() at _sema_timedwait+0x48
Apr 18 22:30:54 hulk kernel: ata_queue_request() at ata_queue_request+0x43a
Apr 18 22:30:54 hulk kernel: ata_controlcmd() at ata_controlcmd+0x89
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk last message repeated 4 times
Apr 18 22:30:54 hulk kernel: acpi_shutdown() at acpi_shutdown+0x31
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk kernel: root_bus_module_handler() at 
root_bus_module_handler+0x1d
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: Waiting on "ATA request done" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: _cv_timedwait() at _cv_timedwait+0x9e
Apr 18 22:30:54 hulk kernel: _sema_timedwait() at _sema_timedwait+0x48
Apr 18 22:30:54 hulk kernel: ata_queue_request() at ata_queue_request+0x43a
Apr 18 22:30:54 hulk kernel: ata_controlcmd() at ata_controlcmd+0x89
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk last message repeated 4 times
Apr 18 22:30:54 hulk kernel: acpi_shutdown() at acpi_shutdown+0x31
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk kernel: root_bus_module_handler() at 
root_bus_module_handler+0x1d
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: Waiting on "ATA request done" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: _cv_timedwait() at _cv_timedwait+0x9e
Apr 18 22:30:54 hulk kernel: _sema_timedwait() at _sema_timedwait+0x48
Apr 18 22:30:54 hulk kernel: ata_queue_request() at ata_queue_request+0x43a
Apr 18 22:30:54 hulk kernel: ata_controlcmd() at ata_controlcmd+0x89
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk last message repeated 4 times
Apr 18 22:30:54 hulk kernel: acpi_shutdown() at acpi_shutdown+0x31
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk kernel: bus_generic_shutdown() at 
bus_generic_shutdown+0x18
Apr 18 22:30:54 hulk kernel: root_bus_module_handler() at 
root_bus_module_handler+0x1d
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42
Apr 18 22:30:54 hulk kernel: syscall() at syscall+0x1f0
Apr 18 22:30:54 hulk kernel: Xfast_syscall() at Xfast_syscall+0xab
Apr 18 22:30:54 hulk kernel: --- syscall (55, FreeBSD ELF64, reboot), rip = 
0x40849c, rsp = 0x7fffffffe7d8, rbp = 0x52 ---
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg: zone "16" with the following 
non-sleepable locks held:
Apr 18 22:30:54 hulk kernel: exclusive sleep mutex ahd_lock r = 0 
(0xffffff007b413358) locked @ /usr/src/sys/cam/cam_periph.c:559
Apr 18 22:30:54 hulk kernel: KDB: stack backtrace:
Apr 18 22:30:54 hulk kernel: db_trace_self_wrapper() at 
db_trace_self_wrapper+0x3a
Apr 18 22:30:54 hulk kernel: witness_warn() at witness_warn+0x262
Apr 18 22:30:54 hulk kernel: uma_zalloc_arg() at uma_zalloc_arg+0x292
Apr 18 22:30:54 hulk kernel: malloc() at malloc+0xa3
Apr 18 22:30:54 hulk kernel: g_modevent() at g_modevent+0x52
Apr 18 22:30:54 hulk kernel: module_shutdown() at module_shutdown+0x5f
Apr 18 22:30:54 hulk kernel: boot() at boot+0x3f1
Apr 18 22:30:54 hulk kernel: reboot() at reboot+0x42





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