linux-kernel - Re: [2/3] 2.6.22-rc2: known regressions v2

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Message-ID: <20070525123456.GA17238@elte.hu>
Date:	Fri, 25 May 2007 14:34:56 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Chris Newport <crn@...unix.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Christoph Lameter <clameter@....com>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Cherwin R. Nooitmeer" <cherwin@...il.com>,
	linux-pcmcia@...ts.infradead.org,
	Robert de Rooy <robert.de.rooy@...il.com>,
	Alan Cox <alan@...hat.com>, Tejun Heo <htejun@...il.com>,
	sparclinux@...r.kernel.org, David Miller <davem@...emloft.net>,
	Mikael Pettersson <mikpe@...uu.se>,
	linux1394-devel@...ts.sourceforge.net,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Kristian H?gsberg <krh@...planet.net>,
	linux-pm@...ts.linux-foundation.org,
	"Rafael J. Wysocki" <rjw@...k.pl>, Pavel Machek <pavel@....cz>,
	Marcus Better <marcus@...ter.se>,
	Andrey Borzenkov <arvidjaar@...l.ru>,
	linux-usb-devel@...ts.sourceforge.net,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: Re: [2/3] 2.6.22-rc2: known regressions v2


* Chris Newport <crn@...unix.com> wrote:

> There is a fundamental problem in getting a decent log to debug a 
> crashed kernel.  Maybe we should take a hint from Solaris. If the 
> kernel crashes Solaris dumps core to swap and sets a flag. At the next 
> boot this image is copied to /var/adm/crashdump where it is preserved 
> for future debugging. Obviously swap needs to be larger than core, but 
> this is usually the case.

we've got kdump, but it's not usually enabled by default by distros.

	Ingo
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