Re: kernel + gcc 4.1 = several problems

From: Alistair John Strachan
Date: Sat Jan 06 2007 - 19:58:12 EST


On Sunday 07 January 2007 00:36, Pavel Machek wrote:
[snip]
> > However, this patch is mostly useless if you have a separate stack for
> > IRQ's (since if that happens, any interrupt will be taken on a different
> > stack which we don't see any more), so you should NOT enable the 4KSTACKS
> > config option if you try this out.
>
> stupid idea... perhaps gcc-4.1 generates bigger stackframe somewhere,
> and stack overflows?

The primary reason it's not 4KSTACKS already is that I run multiple XFS
partitions on top of an md RAID 1. LVM isn't involved, however, and I'm not
using any other filesystem overlays like dm.

I'm fairly sceptical that it's a stack overflow, but I'll be sure to enable
the debugging option on the next try.

> that hw monitoring thingie... I'd turn it off. Its interactions with
> acpi are non-trivial and dangerous.

Well, GCC 3.4 kernels seem to run fine with it, but as I said to Linus I'll be
sure to turn this and the sound drivers off in the next build.

--
Cheers,
Alistair.

Final year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/