linux-kernel - Re: kdump broken on 2.6.37-rc4

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Message-ID: <20101213102529.GA10907@cr0.nay.redhat.com>
Date:	Mon, 13 Dec 2010 18:25:29 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Stanislaw Gruszka <sgruszka@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Maxim Uvarov <muvarov@...il.com>,
	kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Neil Horman <nhorman@...hat.com>
Subject: Re: kdump broken on 2.6.37-rc4

On Thu, Dec 09, 2010 at 12:09:31PM -0800, Yinghai Lu wrote:
>On 12/09/2010 04:41 AM, Stanislaw Gruszka wrote:
>> On Wed, Dec 08, 2010 at 11:16:10PM -0800, Yinghai Lu wrote:
>>>>> please check debug patches, and boot first kernel and kexec second kernel with "ignore_loglevel debug earlyprintk...."
>>>>
>>>> Second kernel does not print anything, so maybe it not even start.
>>>> Dmesg from primary kernel attached.
>>>>
>>>> Stanislaw
>>>
>>>
>>> please try attached debug patch.
>> 
>> With debug patch kdump kernel boot. Dmesg's from kdump and 
>> primary kernel in attachment.
>> 
>
>thanks.
>
>please check if this one works. it only put crashkernel low.
>

Yinghai, is it possible to add the debug patch to upstream too? For debugging
future kdump issues like this.

Thanks.
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