From: "Luming Yu" <luming.yu@gmail.com>
To: linux-ia64@vger.kernel.org
Subject: kdump regression: /proc/vmcore is 0 after kdump
Date: Thu, 05 Jun 2008 07:58:40 +0000 [thread overview]
Message-ID: <3877989d0806050058u3159e7b5x3113f63b3e0f3d8f@mail.gmail.com> (raw)
On Tue, Jun 3, 2008 at 2:02 PM, Luming Yu <luming.yu@gmail.com> wrote:
>> I'm trying upstream kdump to get more detailed data for help analysis
>> the scenario..
> Upstream kdump doesn't work! don't know what cause the regression,
> possibly kexec-tools...
> Need investigation here!
>
I tested mainline kernel from 2.6.20 to 2.6.26-rc4 on my tiger4..
whatever I try, /proc/vmcore is always 0 !
Then I managed to get Nan hai's original patch against 2.6.19..
http://marc.info/?l=linux-ia64&m\x116521104831321&w=2
This patch doesn't have zero-vmcore problem.
Given the age of the kdump feature and so many upstream releases since
2.6.20, I'm in doubt why I don't see this kind of bug report on ia64
mailing list before?
PS. Now I can start to capture info for the strace problem with 2.6.19
kernel +Nahai's 2.6.19 kdump patch, hope the problem is still
reproducible.
Thanks,
Luming
next reply other threads:[~2008-06-05 7:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-05 7:58 Luming Yu [this message]
2008-06-05 8:01 ` kdump regression: /proc/vmcore is 0 after kdump Bernhard Walle
2008-06-05 8:16 ` Simon Horman
2008-06-13 16:22 ` Luming Yu
2008-06-15 9:26 ` Luming Yu
2008-06-15 9:55 ` Bernhard Walle
2008-06-15 10:42 ` Luming Yu
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