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From: Vivek Goyal <vgoyal@redhat.com>
To: "K.Prasad" <prasad@linux.vnet.ibm.com>
Cc: oomichi@mxs.nes.nec.co.jp, "Luck, Tony" <tony.luck@intel.com>,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
	tachibana@mxm.nes.nec.co.jp, Andi Kleen <andi@firstfloor.org>,
	anderson@redhat.com, "Eric W. Biederman" <ebiederm@xmission.com>,
	crash-utility@redhat.com
Subject: Re: [Patch 1/4][kernel][slimdump] Add new elf-note of type NT_NOCOREDUMP to capture slimdump
Date: Tue, 4 Oct 2011 10:04:37 -0400	[thread overview]
Message-ID: <20111004140437.GA28306@redhat.com> (raw)
In-Reply-To: <20111003073203.GA22694@in.ibm.com>

On Mon, Oct 03, 2011 at 01:02:03PM +0530, K.Prasad wrote:
> There are certain types of crashes induced by faulty hardware in which
> capturing crashing kernel's memory (through kdump) makes no sense (or sometimes
> dangerous).
> 
> A case in point, is unrecoverable memory errors (resulting in fatal machine
> check exceptions) in which reading from the faulty memory location from the
> kexec'ed kernel will cause double fault and system reset (leaving no
> information for the user).

Prasad,

I am just trying to remember what was wrong with Andi's approach of
disable MCE while copying the dump?

Thanks
Vivek

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  parent reply	other threads:[~2011-10-04 14:04 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-03  7:07 [Patch 0/4] Slimdump framework using NT_NOCOREDUMP elf-note K.Prasad
2011-10-03  7:32 ` [Patch 1/4][kernel][slimdump] Add new elf-note of type NT_NOCOREDUMP to capture slimdump K.Prasad
2011-10-03 10:10   ` Eric W. Biederman
2011-10-03 12:03     ` K.Prasad
2011-10-04  6:34       ` Borislav Petkov
2011-10-05  7:07         ` K.Prasad
2011-10-05  7:31           ` Borislav Petkov
2011-10-05  9:47             ` K.Prasad
2011-10-05 12:41               ` Borislav Petkov
2011-10-05 15:52               ` Vivek Goyal
     [not found]                 ` <10327.1317830438@turing-police.cc.vt.edu>
2011-10-05 16:16                   ` Borislav Petkov
2011-10-05 17:20                     ` Vivek Goyal
2011-10-05 17:13                   ` Vivek Goyal
     [not found]             ` <26571.1317815746@turing-police.cc.vt.edu>
2011-10-05 12:31               ` Borislav Petkov
2011-10-05 15:19           ` Vivek Goyal
2011-10-05 15:30           ` Vivek Goyal
2011-10-03 22:53     ` Luck, Tony
2011-10-04 14:04   ` Vivek Goyal [this message]
2011-10-05  7:18     ` K.Prasad
2011-10-05  7:33       ` Borislav Petkov
2011-10-05  9:23         ` K.Prasad
2011-10-05 15:25       ` Vivek Goyal
2011-10-07 16:12         ` K.Prasad
2011-10-10  7:07           ` Borislav Petkov
2011-10-11 18:44             ` K.Prasad
2011-10-11 18:59               ` Luck, Tony
2011-10-12  0:20               ` Andi Kleen
2011-10-12 10:44               ` Borislav Petkov
2011-10-12 15:59                 ` Vivek Goyal
2011-10-12 15:51               ` Vivek Goyal
2011-10-14 11:30                 ` K.Prasad
2011-10-14 14:14                   ` Vivek Goyal
2011-10-18 17:41                     ` K.Prasad
2011-10-11 18:55             ` Luck, Tony
2011-10-04 14:30   ` Vivek Goyal
2011-10-05  7:41     ` K.Prasad
2011-10-05 15:40       ` Vivek Goyal
2011-10-05 15:58         ` Luck, Tony
2011-10-05 16:25           ` Borislav Petkov
2011-10-05 17:10           ` Vivek Goyal
2011-10-05 17:20             ` Borislav Petkov
2011-10-05 17:29               ` Vivek Goyal
2011-10-05 17:43                 ` Borislav Petkov
2011-10-05 18:00                 ` Dave Anderson
2011-10-05 18:09                   ` Vivek Goyal
2011-10-04 15:04   ` Nick Bowler
2011-10-07 16:36     ` K.Prasad
2011-10-07 18:19       ` Nick Bowler
2011-10-03  7:35 ` [Patch 2/4][kexec-tools] Recognise NT_NOCOREDUMP elf-note type K.Prasad
2011-10-03  7:37 ` [Patch 3/4][makedumpfile] Capture slimdump if elf-note NT_NOCOREDUMP present K.Prasad
2011-10-03  7:45 ` [Patch 4/4][crash] Recognise elf-note of type NT_NOCOREDUMP before vmcore analysis K.Prasad

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