RE: [PATCH v2 1/1] gdb: Enable OS generated corefiles on systems with Intel AMX support.

["Joos, Christina" <christina.joos@intel.com>]

> -----Original Message-----
> From: Andrew Burgess <aburgess@redhat.com>
> Sent: Samstag, 19. September 2026 13:55
> To: Joos, Christina <christina.joos@intel.com>; gdb-patches@sourceware.org
> Cc: Rohr, Stephan <stephan.rohr@intel.com>
> Subject: Re: [PATCH v2 1/1] gdb: Enable OS generated corefiles on systems with
> Intel AMX support.
> 
> Christina Joos <christina.joos@intel.com> writes:
> 
> > This patch addresses the issue described in PR gdb/34561.  On systems
> > with Intel AMX support the xsave size is 11008.  This xsave size is
> > not handled by gdb/i387-tdep.c:i387_guess_xsave_layout and is causing
> > problems for corefiles generated by the linux kernel.  The problem is
> > visible regardless of the AMX enablement state in the dumping process,
> > so all corefiles on newer systems with AMX are broken.

Hi Andrew,

Thanks a lot for pushing this patch.

> FYI: https://sourceware.org/bugzilla/show_bug.cgi?id=34646
> Could you take a look if you have a chance please.

As described in the discussion for v1 of this patch [1], the issue described in the bug
34646, just became visible due to the improved test coverage for core files, which
are also part of this patch.
They are unrelated to the GDB code changes of this patch, so the issue existed before,
too. I added a comment in the bug, so this is hopefully clearer now.

[1] https://sourceware.org/pipermail/gdb-patches/2026-September/230279.html

Kind Regards,
Christina
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