Interesting - we're running FC4, and without IRQ balance, all interrupts default to the highest numbered CPU (CPU3 with hyperthreading on, CPU1 with it off...)
i have added an echo statement to our startup scripts that moves the T1 card to interrupt on CPU0 and it has worked wonderfully for us...watching /proc/interrupts shows that the digium/sangoma card is only hitting CPU0 while everything else hits CPU1 we're running a stock FC4 install, kernel 2.6.11.x, FWIW... On 6/9/06, Colin Anderson <[EMAIL PROTECTED]> wrote:
> On further investigation, the SMP affinity on ALL of the IRQs is set to > 00000001. This implies that everything is handled by CPU0, which it clearly > is not! > > I'll do some more research on this but in the meantime if anyone has any > advice on this issue I would appreciate it. There is a kernel bug in Fedora flavors < 2.6.15 that prevents SMP affinity from being set. Sorry, don't have the link right now but bugs.redhat.com should have it.
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