gmirror panic with SiI 3726 when array is degraded

[technews]

On 5/26/2010 11:33 PM, Alexander Motin wrote:
> technews wrote:
>    
>> So I've started using gmirror recently to mirror 2 1.5 TB drives however
>> if I reboot the machine or 'gmirror stop -f data1' while the array is
>> been rebuilt I get the panic below.
>> Rebooting without geom_mirror loaded does not cause a panic
>> Rebooting with geom_mirror loaded and the drives disconnected does not
>> cause a panic.
>> The drives are in an "Rosewill RSV-S4-X 4 Bay SATA to eSATA (Port
>> Multiplier) JBOD / RAID 0, 1, 1+0, 5 Enclosure" connected over a SiI
>> 3726 (rev=1706) adapter
>> Rebooting with the drives mounted normally does not cause a panic
>> I'm using the latest and greatest firmware, the panics occurred before
>> the update
>>      
> It would be nice if you build kernel with debugger and got a stack
> backtrace to show where problem occurred.
>
> Also, if you like your port multiplier to work much faster and stable -
> I would strongly suggest you to update to 8-STABLE (or wait forthcoming
> 8.1-RELEASE, if you prefer releases) and use new siis(4) driver for your
> SiI3132 SATA controller. Port Multiplier support in ata(4) driver left
> in embryo level and won't be improved.
>
>    
Thanks Alexander, I'll update to 8-STABLE and give the siis(4) driver a 
try. Its not really worth wasting time on something that's not going to 
be touched any more.