ZFS RAID-Z panic on vdev failure + subsequent panics and hangs

[Boris Kochergin]

Pawel Jakub Dawidek wrote:
> On Fri, Aug 07, 2009 at 03:34:34PM -0400, Boris Kochergin wrote:
>   
>> Pawel Jakub Dawidek wrote:
>>     
>>> Yeah, that's strange indeed. Could you try:
>>>
>>> 	print ab->b_arc_node.list_prev
>>> 	print ab->b_arc_node.list_next
>>>
>>>  
>>>       
>> (kgdb) print ab->b_arc_node.list_prev
>> $1 = (struct list_node *) 0x1
>>     
>
> Yeah, list_prev is corrupted. If it panics on you everytime, I could
> send you a patch which will try to catch where the corruption occurs.
>
>   
I eventually get the arc_evict panic every time I successfully manage to 
mount the filesystem, but it usually panics (with the other backtrace) 
as soon as I try to mount it, or mount just hangs. I'll gladly try the 
patch, though--the data on the array is important to me. Thanks.

-Boris