linux-kernel - Re: [Patch 1/6] XPANIC: Add extended panic interface

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Date:	Fri, 27 May 2011 21:26:56 +0530
From:	"K.Prasad" <prasad@...ux.vnet.ibm.com>
To:	richard -rw- weinberger <richard.weinberger@...il.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	Vivek Goyal <vgoyal@...hat.com>, kexec@...ts.infradead.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>, anderson@...hat.com
Subject: Re: [Patch 1/6] XPANIC: Add extended panic interface

On Thu, May 26, 2011 at 07:38:19PM +0200, richard -rw- weinberger wrote:
> On Thu, May 26, 2011 at 7:12 PM, K.Prasad <prasad@...ux.vnet.ibm.com> wrote:
> >
> > commit e668fa1aea7844ac4c7ea09030a2f3e647a4adb1
> > Author: Andi Kleen <ak@...ux.intel.com>
> > Date:   Fri Nov 19 18:36:44 2010 +0100
> >
> > Index: linux-2.6.slim_kdump/kernel/panic.c
> > ===================================================================
> > --- linux-2.6.slim_kdump.orig/kernel/panic.c
> > +++ linux-2.6.slim_kdump/kernel/panic.c
> > @@ -57,14 +57,37 @@ EXPORT_SYMBOL(panic_blink);
> >  *
> >  *     This function never returns.
> >  */
> > -NORET_TYPE void panic(const char * fmt, ...)
> > +NORET_TYPE void panic(const char *fmt, ...)
> > +{
> > +       va_list ap;
> > +       va_start(ap, fmt);
> > +       vpanic(0, 0, fmt, ap);
> > +}
> > +EXPORT_SYMBOL(panic);
> > +
> > +NORET_TYPE void xpanic(enum panic_flags flags, int timeout,
> > +                       const char *fmt, ...)
> > +{
> > +       va_list ap;
> > +       va_start(ap, fmt);
> > +       xpanic(flags, timeout, fmt, ap);
> 
> Why are you calling xpanic() here again?
> I guess you meant vpanic().
>

True, this is a bug in the original patch found in the git tree
git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git, for
which I have proposed a patch here: https://lkml.org/lkml/2011/5/26/337.

Thanks,
K.Prasad
 
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