Re: [patch] UML kernels on {i386,x86_64} produce bad coredumps

From: WANG Cong
Date: Tue Jan 25 2011 - 23:30:07 EST

On Tue, 25 Jan 2011 15:14:33 -0800, Paul Pluzhnikov wrote:
> Examining the core shows that NT_PRSTATUS notes for all threads other
> than the one that crashed are zeroed out.
> I believe this is happening because neither ELF_CORE_COPY_TASK_REGS nor
> task_pt_regs are defined under ARCH=um, and so elf_core_copy_task_regs()
> becomes a no-op.

I think this was missed due to some cleanups of the core elf
change, UML is one of the part overlooked by people. :-/

> Attached patch fixes this for SUBARCH={x86_64,i386}.
> Thanks,
> --
> Paul Pluzhnikov
> P.S. Google has blanket FSF copyright assignment.
> Signed-off-by: Paul Pluzhnikov <ppluzhnikov@xxxxxxxxxx>

Acked-by: WANG Cong <xiyou.wangcong@xxxxxxxxx>


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