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Date: Tue, 4 Sep 2012 15:25:45 -0700
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Subject: Re: kexec/kdump kernel fails to start
From: Yinghai Lu <yinghai@kernel.org>
To: Flavio Leitner <fbl@redhat.com>
Cc: lkml <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
        WANG Cong <xiyou.wangcong@gmail.com>, Tejun Heo <tj@kernel.org>,
        ianfang.cn@gmail.com, Andrew Morton <akpm@linux-foundation.org>
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On Tue, Sep 4, 2012 at 2:37 PM, Flavio Leitner <fbl@redhat.com> wrote:
> On Tue, 4 Sep 2012 13:45:23 -0700
> Yinghai Lu <yinghai@kernel.org> wrote:
>
>> On Tue, Sep 4, 2012 at 1:26 PM, Flavio Leitner <fbl@redhat.com> wrote:
>> >
>> > Sorry, but it didn't work.
>> > The same problem happened.
>>
>> can you send out boot log ?
>
> sure, there you go:
> http://sysclose.org/kdump/dmesg-debug.log
> http://sysclose.org/kdump/config.log

looks like you did not use for-x86-mm branch.

[    0.000000] initial memory mapped: [mem 0x00000000-0x1fffffff]
[    0.000000] Base memory trampoline at [ffff880000097000] 97000 size 24576
[    0.000000] init_memory_mapping: [mem 0x00000000-0xbf7fffff]
[    0.000000]  [mem 0x00000000-0xbf7fffff] page 2M
[    0.000000] kernel direct mapping tables up to 0xbf7fffff @ [mem
0x1fa00000-0x1fffffff]
[    0.000000] init_memory_mapping: [mem 0x100000000-0x43fffffff]
[    0.000000]  [mem 0x100000000-0x43fffffff] page 2M
[    0.000000] kernel direct mapping tables up to 0x43fffffff @ [mem
0xbf7ce000-0xbf7dffff]
[    0.000000] RAMDISK: [mem 0x351d2000-0x368e0fff]
[    0.000000] Reserving 256MB of memory at 592MB for crashkernel
(System RAM: 16372MB)

please try:

mkdir linux || exit -1
cd linux

git init-db

# Add Linus's tree as a remote
git remote add linus
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

# Add the -tip tree as a remote
git remote add tip git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git

# Add yinghai's tree

git remote add yinghai
git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git

git remote update

git checkout -b yinghai-for-x86-mm yinghai/for-x86-mm