From: Tonnerre <tonnerre@thundrix.ch>
To: Itsuro Oda <oda@valinux.co.jp>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC]Kexec based crash dumping
Date: Fri, 20 Aug 2004 16:28:40 +0200 [thread overview]
Message-ID: <20040820142840.GD16660@thundrix.ch> (raw)
In-Reply-To: <20040819083333.76F4.ODA@valinux.co.jp>
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Salut,
On Thu, Aug 19, 2004 at 08:45:00AM +0900, Itsuro Oda wrote:
> - prepare a kernel which does only dump real memory to block
> device. ("dump mini kernel")
> - pre-allocate the memory (4MB is enough) used by the dump mini
> kernel and pre-load the dump mini kernel.
> - when crash occur exec the dump mini kernel.
> - the dump mini kernel stands in and only uses pre-allocated
> area.
One question, what happens in your concept when some stubborn zombie
kernel driver (say Nvidia) comes along and overwrites random memory
areas? Will the booting of the dump kernel simply fail?
Tonnerre
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next prev parent reply other threads:[~2004-08-20 14:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-18 23:45 [RFC]Kexec based crash dumping Itsuro Oda
2004-08-20 14:28 ` Tonnerre [this message]
2004-08-22 23:06 ` Itsuro Oda
-- strict thread matches above, loose matches on Subject: below --
2004-08-17 12:04 Hariprasad Nellitheertha
2004-08-17 22:44 ` Andrew Morton
2004-08-18 12:28 ` Hariprasad Nellitheertha
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