em interrupt storm
Kris Kennaway
kris at obsecurity.org
Thu Nov 24 09:36:18 GMT 2005
On Thu, Nov 24, 2005 at 10:28:59AM +0100, Stefan Bethke wrote:
>
> Am 24.11.2005 um 07:26 schrieb Kris Kennaway:
>
> >On Thu, Nov 24, 2005 at 06:24:17AM +0100, Stefan Bethke wrote:
> >>Am 24.11.2005 um 00:15 schrieb Scott Long:
> >>
> >>>I've directly observed it on 7501WV2 and 7520BD2 boards. I don't
> >>>know if it's a problem that will affect other board configurations
> >>>or cousin chipsets like the 7505 and 7525.
> >>
> >>We've got a Tyan i7501 Pro that we have had stability issues with
> >>since the beginning. Is it thinkable that the interrupt masking
> >>could lead to a hard lock (no break to debugger possible)?
> >
> >Sounds like a different problem. Enable KDB_STOP_NMI in your kernel,
> >which should let you break to DDB.
>
> Unfortunatly, no luck: can't break into the debugger with the option
> compiled into the kernel and debug.kdb.stop_cpus_with_nmi=1 set in
> loader.conf either.
I've never encountered this..is it possible this hardware is faulty?
Kris
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