Re: Debugging hard lockups (hardware?)

[Richard J Moore <rasman@uk.ibm.com>]

On Sun 6 April 2003 8:31 pm, Dave Jones wrote:
> On Sun, Apr 06, 2003 at 07:34:09PM +0100, Alan Cox wrote:
>  > > 02:0a.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 01)
>  > > 02:0b.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 01)
>  >
>  > ...
>  > Your choice of components looks fine, its all stuff I trust, even if the
>  > ethernet card is not good for performance it ought to be fine in
>  > general. If it is a faulty part most likely its a one off fault.
>
> Note the IDE controller, and 2.5 bugzilla #123
> That controller has been nothing but trouble for me.
>
> 		Dave
>
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Do you know that your platform support a watchdog timer. Not every thing
 does, thought most do. It's probably worh verifying (cli; hlt;).
Is it possible you have experiennced a triple-fault? Most CPUs reset but some
have been known to freeze and require a manual reset. This can be verified
relatively easily (make int 8 descriptor NP then loop recursively - does the
system hang or reboot?).

--
Richard J Moore
IBM Linux Technology Centre