linux-kernel - Re: [PATCH 1/6] kexec: Export vmcoreinfo note size properly

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Message-ID: <20131121190808.GJ16208@redhat.com>
Date:	Thu, 21 Nov 2013 14:08:08 -0500
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
	ebiederm@...ssion.com, hpa@...or.com, mjg59@...f.ucam.org
Subject: Re: [PATCH 1/6] kexec: Export vmcoreinfo note size properly

On Thu, Nov 21, 2013 at 10:59:00AM -0800, Greg KH wrote:
> On Wed, Nov 20, 2013 at 12:50:46PM -0500, Vivek Goyal wrote:
> > Right now we seem to be exporting the max data size contained inside
> > vmcoreinfo note. But this does not include the size of meta data around
> > vmcore info data. Like name of the note and starting and ending elf_note.
> > 
> > I think user space expects total size and that size is put in PT_NOTE
> > elf header.
> > 
> > Signed-off-by: Vivek Goyal <vgoyal@...hat.com>
> > ---
> >  kernel/ksysfs.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> This should go into 3.13, right?
> 
> Nice fix.

Yes. This is just a general fix for kexec. I noticed it while going
through the code. 

Thanks
Vivek
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