Alan Cox wrote:
>
> > here. These errors itself are not a problem since the APIC bus detect
> > it and recover, but if here are double errors in a way that the checksum
> > is OK, the APIC may run in trouble.
>
> Also nothing but recent -ac kernels in the 2.4 range handle the replay of
> IPI's sometimes caused by this. That patch is a post 2.4.4 thing to sort out.
Hmmm, that's a little too technical for me ;-)
Does that mean that this patch would perhaps increase the stability of
my board as this code tries to prevent those double errors?
If yes, where could I get this patch to try it out?
What do you think of the following suggestion:
-Implement two runtime kernel variables like
/proc/sys/kernel/print_apic_errors
This would simply disable those "APIC error" kernel logs, so that the
logfile is not flooded. (45000 log entries in 1 hour are quite a lot).
Anyway once you know that your board has this problem, IMHO there is no
further use in those messages.
/proc/sys/kernel/enable_apic
The second one would enable/disable the APIC code for testing purposes -
like the "noapic" parameter during boottime. But as I have no knowledge
about those kernel internals, perhaps this wish is impossible to
implement...
Once again, thank you for your help!
Best Regards,
Hermann
-- ,_, (O,O) "There is more to life than increasing its speed." ( ) -- Gandhi -"-"-------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Apr 23 2001 - 21:00:42 EST