Re: NForce2 pseudoscience stability testing (2.6.0-test11) - IRQflood related ?

From: Prakash K. Cheemplavam
Date: Thu Dec 04 2003 - 18:37:07 EST

Craig Bradney wrote:

try it without preempt.. just to see. As soon as I removed it today the
crashes went away (for 5 hours).. PC is now up for 2.5 hours and I'm
waiting to see if it will be 5 hrs or 5 days this time around :)

Oh Ok, I did a mistake: Checking my kernel config again I noticed my last experiment indeed was with preemp OFF, so it didn't help.


On Fri, 2003-12-05 at 00:14, Prakash K. Cheemplavam wrote:

Jesse Allen wrote:

On Thu, Dec 04, 2003 at 09:02:08PM +0100, cheuche+lkml@xxxxxxx wrote:


Along with the lockups already described here, I've noticed an
unidentified source of interrupts on IRQ7.


I wonder if people experiencing lockup problems also have these
noise interrupts,

I just took a look at this, by setting up parport_pc, and yes I get noise.

This was my first sample with a kernel with APIC:
7: 29230 IO-APIC-edge parport0

I just did an experminent with a very light kernel, nearly nothing compiled inside, except apic acpi, preempt and needed stuff plus scsi+libata and no ide. IRQ 7 was not present and every device had its own irq. Nevertheless system locked up at second hdparm run...


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