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SubjectRe: Hard locks under high interrupt load?
This box is running Fedora Core 1 and so, yes, it's running a userspace 
balance daemon (Redhat's).

I'll try out the noirqbalance option and get back to the list on that one.

Zwane Mwaikambo wrote:

>On Fri, 27 Feb 2004, Dan Creswell wrote:
>
>
>
>>I'm having zero success in getting 2.6.3 stable under interrupt load. I
>>can kill my machine in a variety of fashions all of which appear, to my
>>naive eye, related to interrupt load:
>>
>>(1) LAN traffic via E1000 card (X is not running)
>>(2) Running X for more than a few minutes - starting up a couple of
>>applications whilst performing some disk-based activity (such as a
>>compile) usually seems to do the trick.
>>
>>(2) is worth a little more examination. I have an NVIDIA card (I can
>>hear you all groan) *but* I get the same results with the XFree driver
>>*or* the proprietary NVIDIA driver.
>>
>>Disabling IO-APIC usage seems to resolve the problem.
>>
>>
>
>Does the 'noirqbalance' kernel parameter also serve as a workaround? Are
>you using any userspace irq balancers?
>
>
>
>>Machine is a dual Xeon, Tyan S2665 (E7505 chipset) with an MPT-Fusion
>>SCSI controller.
>>
>>2.4.26-pre1 and various other 2.4 kernels give me no problems at all. I
>>really want to switch my machines over to 2.6 but I can't whilst this
>>problem persists.
>>
>>
>
>
>

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