Messages in this thread | | | Date | Tue, 05 Jun 2012 16:42:20 +0100 | From | "Jan Beulich" <> | Subject | Re: [PATCH] x86,nmi: Fix section mismatch warnings on 32-bit |
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>>> On 05.06.12 at 16:47, Don Zickus <dzickus@redhat.com> wrote: > On Tue, Jun 05, 2012 at 09:12:13AM +0100, Jan Beulich wrote: >> So before applying a change like this, I'd really like to understand >> the issue itself. Could you simply attach the nmi_selftest.o file >> that you get without your patch here (and indicate which >> upstream version or revision the corresponding source file was >> from, to be able to re-construct what the compiler actually did)? > > I could but it might be easier for you to re-create it on your end. > Using gcc-4.4.4 on an x86_64 box and v3.5-rc1, I just set > CONFIG_DEBUG_NMI_SELFTEST to 'y' and compile with > > make ARCH=i386 O=out/i686 > > and it easily reproduces for me.
I don't think I have a plain 4.4.4 around anywhere, nor is it clear whether you used a plain one (and how it was configured). For tricky, highly version dependent things like this (where a compiler bug also can't be excluded), having the _exact_ object file the problem was seen with would be much easier than trying to hunt down a compiler version that I can reproduce this with.
Jan
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