On Fri, 2006-11-24 at 11:55 +1100, David Chinner wrote:

On Thu, Nov 23, 2006 at 07:37:00PM +0100, Arjan van de Ven wrote:

quoted

On Thu, 2006-11-23 at 14:16 +0100, Ingo Oeser wrote:

quoted

Hi there,

David Chinner schrieb:

quoted

If the softirqs were run on a different stack, then a lot of these

softirqs DO run on their own stack!

So they run on a separate stack for 4k stacks on x86?

They don't run on a separate stack for 8k stacks on x86 -
Jesper's traces show that - so this may indicate an issue
with the methodology used to generate the stack overflow
traces inteh first place. i.e. if 4k stacks use a separate
stack, then most of the reported overflows are spurious
and would not normally occur on 4k stack systems..

Can you confirm this, Arjan?

yes there are separate stacks for softirq and hardirq context with 4K
stacks, but not for 8K stacks.


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