linux-kernel - Re: kexec/kdump kernel fails to start

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Message-ID: <CAE9FiQX7OMdFU6FuTQdz+NdbNt5Hy9zjzSY7y-90G4CbhayfaA@mail.gmail.com>
Date:	Tue, 4 Sep 2012 12:20:14 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Flavio Leitner <fbl@...hat.com>
Cc:	lkml <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	WANG Cong <xiyou.wangcong@...il.com>,
	Tejun Heo <tj@...nel.org>, ianfang.cn@...il.com,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: kexec/kdump kernel fails to start

On Tue, Sep 4, 2012 at 12:17 PM, Flavio Leitner <fbl@...hat.com> wrote:
> On Tue, 4 Sep 2012 12:02:00 -0700
> [    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
> [    0.000000] last_pfn = 0xbf800 max_arch_pfn = 0x400000000
> [    0.000000] initial memory mapped : 0 - 20000000
> [    0.000000] Base memory trampoline at [ffff880000098000] 98000 size 20480
> [    0.000000] init_memory_mapping: 0000000000000000-00000000bf800000
> [    0.000000]  0000000000 - 00bf800000 page 2M
> [    0.000000] kernel direct mapping tables up to bf800000 @ 1fa00000-20000000
> [    0.000000] init_memory_mapping: 0000000100000000-0000000440000000
> [    0.000000]  0100000000 - 0440000000 page 2M
> [    0.000000] kernel direct mapping tables up to 440000000 @ bdaab000-bf4bd000
> [    0.000000] RAMDISK: 352c8000 - 3695c000
>
BTW, can you please try our new init_memory_mapping clean up at

	git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
for-x86-mm

hope it could make your kdump working.

Thanks

Yinghai
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