Re: Known problems with megaraid under 2.4.25 highmem?

[Tvrtko A. Uršulin]

On Friday 27 February 2004 19:52, Marcelo Tosatti wrote:
> > I have experienced an I/O lockup on my dual Xeon server with megaraid
> > adapter when kernel was compiled with highmem and highmem i/o. It
> > happened during compilation of mysql with no other load.
> >
> > Then I recompiled the kernel wo/highmem and everything is stable.
> >
> > As, this server is now in production on different location I cannot do
> > much testing except giving detailed hw info.
>
> Hi,
>
> Not known to me...
>
> Can you get any traces from the lockup? NMI watchdog or sysrq+p and +t?
>
> Did any previous 2.4.x work reliably?

A little bit more on this subject:

Are there any known problems when using userspace irqbalance daemon on this 
hardware or in general? We are currently running vanilla 2.4.25 wo/irqbalance 
and so far I cannot make it lock up.

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