zpool import reboots computer

[Martin Ranne]

On 2012-01-19 18:55, Andriy Gapon wrote: 
on 19/01/2012 19:36 Martin Ranne said the following:
On 2012-01-19 17:32, Andriy Gapon wrote: 
on 19/01/2012 17:36 Martin Ranne said the following:
>>>>I had a failure in one server where i try to determine if it is memory or cpu. It shows up as memory failure in memtest86. >>The result is that it managed to damage the zpool which is a raidz2 with 6 disks.

>>>>If I boot from a FreeBSD 9.0-RELEASE usb stick and import it with zpool -f -R /mnt/zroot zroot it will reboot the computer. >>I have also tried to import it in another computer which is running 9-STABLE with the same result. On the second computer I >>used zpool -f -R /mnt/zroot "zpool-id" serv06zroot 

>>>>Can I get some help on how to be able to debug this and in the end be able to import it to repair it.

>>>>Data for the second computer can be found attached. The disks in question are da0 to da5 in this.

>>>And the panic message is?

>>I am trying to get a crash dump but it hangs when dumping.

>Alternatives:
>- serial console
>- digital camera
>- eyes plus pen and paper

Finally here it is. Is there anything i can do in the debugger to make it possible to find what is crashing in there?

Fatal trap 12: page fault while in kernel mode
Fatal trap 12: page fault while in kernel mode
cpuid = 0; cpuid = 2; apic id = 00
apic id = 02
fault virtual address        = 0x88
fault virtual address        = 0x38
fault code                    = supervisor read data, page not present
fault code                    = supervisor read data, page not present
instruction pointer            = 0x20:0xffffffff814a7ef5
instruction pointer            = 0x20:0xffffffff814872a1
stack pointer                = 0x28:0xffffff8c10252ad0
stack pointer                = 0x28:0xffffff8c0d564f00
frame pointer                = 0x28:0xffffff8c10252b40
frame pointer                = 0x28:0xffffff8c0d564f30
code segment                = base 0x0, limit 0xfffff, type 0x1b
code segment                = base 0x0, limit 0xfffff, type 0x1b
                            = DPL 0, pres 1, long 1, def32 0, gran 1
                            = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags            = processor eflags        = interrupt enabled, interrupt enabled, resume, resume, IOPL = 0
IOPL = 0
current process                = current process                = 2659 (zpool)
0 [ thread pid 2659 tid 100592 ]
stopped at        zio_vdev_child_io+0x25: cmpq    $0,0x88(%r10)
db>
________________________________________
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1901 / Virus Database: 2109/4753 - Release Date: 01/19/12