linux-kernel - Re: x86: kdump failure

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Date:	Fri, 18 Jan 2008 14:59:13 +0530
From:	Subrata Modak <subrata@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>, tglx@...utronix.de,
	hpa@...or.com, linux-kernel@...r.kernel.org,
	Roland McGrath <roland@...hat.com>, Cai Qian <qcai@...hat.com>
Subject: Re: x86: kdump failure

On Fri, 2008-01-18 at 10:02 +0100, Ingo Molnar wrote:
> * Hiroshi Shimamoto <h-shimamoto@...jp.nec.com> wrote:
> 
> > kdump needs ELF_CORE_COPY_REGS in crash_save_cpu(). This lack of the 
> > macro causes the following BUG.
> > 
> > SysRq : Trigger a crashdump
> > ------------[ cut here ]------------
> > kernel BUG at include/linux/elfcore.h:105!
> > invalid opcode: 0000 [1] PREEMPT SMP
> 
> thanks, applied.
> 
> > +/*
> > + * regs is struct pt_regs, pr_reg is elf_gregset_t (which is
> > + * now struct_user_regs, they are different)
> > + */
> > +
> > +#define ELF_CORE_COPY_REGS(pr_reg, regs) do {		\
> 
> this macro got removed by the regset patches. Roland, any ideas?
> 
> 	Ingo
Hi Ingo/Hiroshi Shimamoto,

There also has been a huge update on ltp-kdump test suite. You can find
the same @ http://ltp.cvs.sourceforge.net/ltp/ltp/testcases/kdump/,

--Subrata
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