From: ebiederm@xmission.com (Eric W. Biederman)
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
suparna@in.ibm.com, Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
fastboot@osdl.org
Subject: Re: [Fastboot] Re: Announce: dumpfs v0.01 - common RAS output API
Date: 28 Jul 2004 09:56:31 -0600 [thread overview]
Message-ID: <m1658815xs.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <120130000.1091028085@[10.10.2.4]>
"Martin J. Bligh" <mbligh@aracnet.com> writes:
> --Alan Cox <alan@lxorguk.ukuu.org.uk> wrote (on Wednesday, July 28, 2004
> 15:06:27 +0100):
>
>
> > On Mer, 2004-07-28 at 15:38, Martin J. Bligh wrote:
> >> After kexec, we shouldn't need such things, do we? Before it, Linus won't
> >> take the patch, as he said he doesn't like systems in unstable states doing
> >> crashdumps to disk ...
> >
> > And what does kexec do.. it accesses the disk. A SHA signed standalone
> > dumper is as safe as anything else if not safer.
>
> But it's reading, not writing ... personally I'm happier with that bit ;-)
And it is only reading to preload the dumper in memory. This happens
before the system crashes.
All that happens at crash dump time is we hand off control to the dumper.
kexec is just the mechanism to switch from the kernel to the dumper.
It is attractive to make the dumper based on the current linux kernel
but that is by no means a requirement.
Eric
next prev parent reply other threads:[~2004-07-28 16:00 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-22 16:19 Announce: dumpfs v0.01 - common RAS output API Keith Owens
2004-07-26 6:57 ` Andrew Morton
2004-07-28 1:53 ` Eric W. Biederman
2004-07-28 10:54 ` Suparna Bhattacharya
2004-07-28 10:46 ` [Fastboot] " Alan Cox
2004-07-28 14:38 ` Martin J. Bligh
2004-07-28 14:06 ` Alan Cox
2004-07-28 15:21 ` Martin J. Bligh
2004-07-28 15:56 ` Eric W. Biederman [this message]
2004-07-28 17:09 ` Andrea Arcangeli
2004-07-28 16:05 ` Eric W. Biederman
2004-07-28 15:42 ` Eric W. Biederman
2004-07-28 15:12 ` Eric W. Biederman
2004-07-28 15:23 ` Martin J. Bligh
2004-07-28 15:53 ` Eric W. Biederman
2004-07-28 16:03 ` Jesse Barnes
2004-07-28 18:00 ` Eric W. Biederman
2004-07-28 18:06 ` Jesse Barnes
2004-07-28 19:42 ` Martin J. Bligh
2004-07-28 19:56 ` [Fastboot] " Alan Cox
2004-07-28 19:44 ` Andrew Morton
2004-07-28 23:11 ` [Fastboot] " Eric W. Biederman
2004-07-28 22:53 ` Alan Cox
2004-07-29 1:12 ` Eric W. Biederman
2004-07-29 14:00 ` Alan Cox
2004-07-29 15:47 ` Eric W. Biederman
2004-07-28 18:21 ` Alan Cox
2004-07-28 19:23 ` Martin J. Bligh
2004-07-28 20:28 ` [Fastboot] " Eric W. Biederman
2004-07-28 20:33 ` Andrew Morton
2004-07-28 19:59 ` Alan Cox
2004-07-28 22:42 ` Andrew Morton
2004-07-28 22:44 ` Jesse Barnes
2004-07-28 23:17 ` Eric W. Biederman
2004-07-28 22:55 ` Alan Cox
2004-07-29 0:22 ` Andrew Morton
2004-07-29 13:57 ` Alan Cox
2004-07-29 18:17 ` Andrew Morton
2004-07-29 21:20 ` Alan Cox
2004-07-29 22:30 ` Gerrit Huizenga
2004-07-30 0:04 ` Eric W. Biederman
2004-07-29 23:25 ` Alan Cox
2004-07-30 4:07 ` Eric W. Biederman
2004-07-30 12:38 ` Gerrit Huizenga
2004-07-31 13:52 ` Matthias Urlichs
2004-07-30 15:24 ` Olivier Galibert
2004-07-29 1:05 ` Eric W. Biederman
2004-07-29 14:12 ` Martin J. Bligh
2004-07-28 23:44 ` Andrew Morton
2004-07-29 0:58 ` Eric W. Biederman
2004-07-29 1:09 ` Andrew Morton
2004-07-29 1:56 ` Eric W. Biederman
2004-07-29 14:18 ` Martin J. Bligh
2004-07-29 16:01 ` Eric W. Biederman
2004-07-29 16:19 ` Eric W. Biederman
2004-07-29 14:08 ` Martin J. Bligh
2004-07-29 15:52 ` Eric W. Biederman
2004-07-29 16:13 ` Martin J. Bligh
2004-07-29 17:12 ` Matthias Urlichs
-- strict thread matches above, loose matches on Subject: below --
2004-07-30 15:02 Manfred Spraul
2004-07-30 14:42 ` Alan Cox
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