Interrupt storm with MSI in combination with em1

[Daan Vreeken]

Hi Steven,

On Friday 06 May 2011 17:20:15 Steven Hartland wrote:
> From: "Daan Vreeken" <Daan at vehosting.nl>
>
> > # vmstat -i
> > interrupt                          total       rate
> > irq3: uart1                       917384         63
> > --> irq16: ehci0                   809547235      55608
>
> Have you tried removing USB from the kernel?
>
> USB seems to be a common course of this behaviour and here at least
> removing it from the kernel fixes in all cases assuming you don't
> need it for something?

No, I haven't tried that yet. I could disable USB to run some tests, but I'll 
eventually need it enabled again.
I'll wait for a couple of hours to see if anyone can come up with a test to 
run on the machine while the interrupt is still storming. After that I'll 
reboot it with USB disabled.


Thanks,
-- 
Daan Vreeken
VEHosting
http://VEHosting.nl
tel: +31-(0)40-7113050 / +31-(0)6-46210825
KvK nr: 17174380