Re: [bug] crash when reading /proc/mounts (was: Re: Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series..)

From: Alexey Dobriyan
Date: Thu Oct 04 2007 - 11:08:57 EST


On 10/4/07, Adrian Bunk <bunk@xxxxxxxxxx> wrote:
> On Wed, Oct 03, 2007 at 08:11:05AM -0700, Linus Torvalds wrote:
> >...
> > and btw, there is no question what-so-ever about whether your compiler
> > might be doing a legal optimization - the compiler really is wrong, and is
> > total shit. You need to make a gcc bug-report.
> >...
>
> Ingo can't send a gcc bug-report since gcc 4.0 is no longer supported
> upstream and a 4.1.2 compiler was confirmed to work.

Ingo can upgrade to 4.0.4. :-)

> Our only options are to either stop supporting the broken gcc versions
> as compiler for the kernel or to work around this compiler bug in the
> kernel.

Distro can backport a fix for miscompilation while leaving, say,
__GNUC_MINOR__ intact, so banning version numbers aren't terribly
useful.

Perhaps, someone should write a script/test program to check for known
miscompilations. to cure himself from deprecation disease.

Alexey "make cc_check" Dobriyan
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