[ivtv-users] possible ATA hang in 2.6.32-rc6

[Marty]

Tejun Heo wrote:
> Hello, Marty.
> 
> Marty wrote:
>> I got two hard hangs in 2.6.32-rc5 and rc6 in an Asrock A780GXE/128M
>> with AMD 780G+SB700 chipsets, resulting in no response to magic alt-sysreq.
>> The first hang left no log clues.  The second was closely but not
>> immediately preceeded by syslog ATA error messages (see excerpt).
> The ata error messages indicate transmission problems.  The fact that
...

> they're pretty close to each other is interesting and seems to point
> to hardware problem (most likely power fluctuation).

Thanks for the reply.  I think you are right about power. Subsequent
hangs seem to indicate a problem with the mains.  In the last hang,
the (offline) UPS briefly switched to battery, and another system has
had the same problem.