Re: [PATCH 1/3] Separate IRQ-stacks from 4K-stacks option

[Nathan Bryant]

Alexander E. Patrakov wrote:
> Martin J. Bligh wrote:
>
> > --Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote (on Friday, September 10, 
> > 2004 10:14:11 +0100):
> >
> > > Its probably appropriate to drop gcc 2.x support at that point too since
> > > it's the major cause of remaining problems
> >
> >
> > What problems does it cause? 2.95.4 still seems to work fine for me.
>
>
> The latest gcc2 on the ftp.gnu.org site is gcc 2.95.3. There is 
> officially no such thing as "gcc 2.95.4". Probably you are talking about 
> a patched version of some gcc2 cvs snapshot - that's what distros 
> provide. Please specify exactly what gcc version you are talking about.

2.95.4, if I remember correctly, contained fixes that went onto the gcc 
2.95 branch after 2.95.3 was released. Some of the fixes were for 
Linux-2.2/2.4 and glibc2.2 compatibility. This compiler was distributed 
by Debian, I think.

> And there _is_ problem with gcc-2.95.3-compiled kernel: latest cvs glibc 
> testsuite segfaults in nptl tests. There are no failures with the kernel 
> identically configured, but compiled with gcc 3.3.4 or 3.4.1. So gcc 
> 2.95.3 as supplied by gnu.org miscompiles the kernel (futexes?). Either 
> fix the kernel or drop gcc2 support.

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