Re: 2.4.16 deadlock in kswapd

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Dec 18 2001 - 10:13:38 EST


> > Trace; c01117b5 <flush_tlb_page+75/80>
> > Trace; c012f052 <swap_out+312/4b0>
> > ...
>
> Dodgy hardware, I'm afraid - it looks like a cross-CPU interrupt
> was sent but not received. Not uncommon.

Andrea claimed there were races in the x86 ipi code. I dont know if his
change was applied however. The x86 messaging is reliable (you'll see
showers of apic errors before it fails) but does sometimes replay a message
which is much fun

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sun Dec 23 2001 - 21:00:17 EST