linux-kernel - Re: kdump, ia64: always reserve elfcore header memory in crash kernel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20080805025442.d4626d40.akpm@linux-foundation.org>
Date:	Tue, 5 Aug 2008 02:54:42 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Simon Horman <horms@...ge.net.au>
Cc:	kexec@...ts.infradead.org, linux-ia64@...r.kernel.org,
	linux-kernel@...r.kernel.org, Vivek Goyal <vgoyal@...hat.com>,
	Tony Luck <tony.luck@...el.com>
Subject: Re: kdump, ia64: always reserve elfcore header memory in crash
 kernel

On Tue, 5 Aug 2008 19:48:27 +1000 Simon Horman <horms@...ge.net.au> wrote:

> elfcore header memory needs to be reserved in a crash kernel.
> This means that the relevant code should be protected
> by CONFIG_CRASH_DUMP rather than CONFIG_PROC_VMCORE.
> 
> Signed-off-by: Simon Horman <horms@...ge.net.au>
> 
> --- 
> Andrew, this patch fixes bug in the (unlikely) case where
> an ia64 crashdump kernel does not have CONFIG_PROC_FS set.
> I think it is worth including in 2.6.27. But breakage cases are
> likely to be minimal to non-existent, so I am comfortable
> with post 2.6.27 too.
> 
> This patch should be appended to the series,
> "is_kdump_kernel() cleanup and related patches".

hm, that means that we would need to apply a moderate-size seven patch
series to fix one little bug.

I think that if we want to fix this in 2.6.27 then the basic single
patch would be preferable.  Or we leave it until 2.6.28/


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/