Bug#536354: linux-2.6: [s390,lenny] kernel panic during boot

[dann frazier <dannf@debian.org>]

On Mon, Jul 13, 2009 at 11:22:12AM +0200, Frans Pop wrote:
> Linus has committed a different solution: replacing -fwrapv by
> -fno-strict-overflow.
> See upstream commit a137802ee839ace40079bebde24cfb416f73208a.

I tried applying that fix, but it causes a build failure because the
compiler we use for lenny (gcc-4.1) doesn't support it. It seems
strange that upstream would drop '-fwrapv' due to problems w/
gcc-4.1.x, but then require an option that's not supported by gcc-4.1
at all. Maybe that option got added in the 4.1.x stream after Debian
released it? Maybe I'm missing a kernel change that would prevent this
option from being used in 4.1?

For Debian, I guess our options are to either just revert the fwrapv
fix, or add the above changset but make it dependent on compiler
version. Both should be equivalent for the debian binaries, but the
latter would be an improvement for folks who build their own kernels
from our source with newer compilers. No idea how significant that #
of users is though.

-- 
dann frazier