Re: XFS, 4K stacks, and Red Hat

[Steve Lord <lord@xxxxxxx>]

Christoph Hellwig wrote:
> On Wed, Jul 13, 2005 at 06:10:41AM +0200, Andi Kleen wrote:
>
> > > In a previous life I actually had to resort to allocating a chunk of
> > > memory, linking it into the stack, then carrying on down the call
> > > chain (not on linux). The memory was freed on the way up the stack
> > > again. I am not saying that would be a viable solution, but there needs
> > > to be something done about stack overflow and nested subsystems, before
> > > someone tries iscsi over IPV6 or something other bizzare combo.
> > ISCSI over something would be difficult again because that layering 
> > is invisible to the block layer. Maybe the iscsi block driver would 
> > need to declare how much stack it needs or do similar checks
> > by itself.
>
> That iscsi driver needs very little stack because it hands off all work
> to a helper thread.
Because it was running out of stack otherwise? ;-)

Steve