From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from outbound.mse2.exchange.ms ([69.25.50.247] helo=mse2fe1.mse2.exchange.ms) by canuck.infradead.org with esmtp (Exim 4.63 #1 (Red Hat Linux)) id 1IUxpQ-0004rZ-Ce for kexec@lists.infradead.org; Tue, 11 Sep 2007 00:58:29 -0400 Message-ID: <46E61D77.1050001@bluelane.com> Date: Mon, 10 Sep 2007 21:45:43 -0700 From: Piet Delaney MIME-Version: 1.0 Subject: Re: [Crash-utility] Re: [PATCH 0/2] vmcoreinfo support for dump filtering #2 References: <20070907175746oomichi@mail.jp.nec.com> <20070910113521.755d0433.rdunlap@xenotime.net> <20070911035250.GA5053@in.ibm.com> In-Reply-To: <20070911035250.GA5053@in.ibm.com> Reply-To: pdelaney@bluelane.com List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1907243642==" Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org+dwmw2=infradead.org@lists.infradead.org To: vgoyal@in.ibm.com, "Discussion list for crash utility usage, maintenance and development" Cc: Randy Dunlap , kexec-ml This is a multi-part message in MIME format. --===============1907243642== Content-Type: multipart/alternative; boundary="------------010800070100020307060903" This is a multi-part message in MIME format. --------------010800070100020307060903 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Vivek Goyal wrote: How do I subscribe to the kexec mailing list on lists.infradead.org? I tried majordomo, as on vger, but it didn't work. -piet > On Mon, Sep 10, 2007 at 11:35:21AM -0700, Randy Dunlap wrote: > >> On Fri, 7 Sep 2007 17:57:46 +0900 Ken'ichi Ohmichi wrote: >> >> >>> Hi, >>> >>> I released a new makedumpfile (version 1.2.0) with vmcoreinfo support. >>> I updated the patches for linux and kexec-tools. >>> >>> PATCH SET: >>> [1/2] [linux-2.6.22] Add vmcoreinfo >>> The patch is for linux-2.6.22. >>> The patch adds the vmcoreinfo data. Its address and size are output >>> to /sys/kernel/vmcoreinfo. >>> >>> [2/2] [kexec-tools] Pass vmcoreinfo's address and size >>> The patch is for kexec-tools-testing-20070330. >>> (http://www.kernel.org/pub/linux/kernel/people/horms/kexec-tools/) >>> kexec command gets the address and size of the vmcoreinfo data from >>> /sys/kernel/vmcoreinfo, and passes them to the second kernel through >>> ELF header of /proc/vmcore. When the second kernel is booting, the >>> kernel gets them from the ELF header and creates vmcoreinfo's PT_NOTE >>> segment into /proc/vmcore. >>> >> Hi, >> When using the vmcoreinfo patches, what tool(s) are available for >> analyzing the vmcore (dump) file? E.g., lkcd or crash or just gdb? >> >> gdb works for me, but I tried to use crash (4.0-4.6 from >> http://people.redhat.com/anderson/) and crash complained: >> >> crash: invalid kernel virtual address: 0 type: "cpu_pda entry" >> >> Should crash work, or does it need to be modified? >> >> > > Hi Randy, > > Crash should just work. It might broken on latest kernel. Copying it > to crash-utility mailing list. Dave will be able to tell us better. > > >> This is on a 2.6.23-rc3 kernel with vmcoreinfo patches and a dump file >> with -l 31 (dump level 31, omitting all possible pages). >> >> > > Thanks > Vivek > > -- > Crash-utility mailing list > Crash-utility@redhat.com > https://www.redhat.com/mailman/listinfo/crash-utility > --------------010800070100020307060903 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Vivek Goyal wrote:

How do I subscribe to the kexec mailing list on lists.infradead.org?
I tried majordomo, as on vger, but it didn't work.

-piet

On Mon, Sep 10, 2007 at 11:35:21AM -0700, Randy Dunlap wrote:
  
On Fri, 7 Sep 2007 17:57:46 +0900 Ken'ichi Ohmichi wrote:

    
Hi,
      
I released a new makedumpfile (version 1.2.0) with vmcoreinfo support.
I updated the patches for linux and kexec-tools.

PATCH SET:
[1/2] [linux-2.6.22] Add vmcoreinfo
  The patch is for linux-2.6.22.
  The patch adds the vmcoreinfo data. Its address and size are output
  to /sys/kernel/vmcoreinfo.

[2/2] [kexec-tools] Pass vmcoreinfo's address and size
  The patch is for kexec-tools-testing-20070330.
  (http://www.kernel.org/pub/linux/kernel/people/horms/kexec-tools/)
  kexec command gets the address and size of the vmcoreinfo data from
  /sys/kernel/vmcoreinfo, and passes them to the second kernel through
  ELF header of /proc/vmcore. When the second kernel is booting, the
  kernel gets them from the ELF header and creates vmcoreinfo's PT_NOTE
  segment into /proc/vmcore.
      
Hi,
When using the vmcoreinfo patches, what tool(s) are available for
analyzing the vmcore (dump) file?  E.g., lkcd or crash or just gdb?

gdb works for me, but I tried to use crash (4.0-4.6 from
http://people.redhat.com/anderson/) and crash complained:

crash: invalid kernel virtual address: 0  type: "cpu_pda entry"

Should crash work, or does it need to be modified?

    

Hi Randy,

Crash should just work. It might broken on latest kernel. Copying it
to crash-utility mailing list. Dave will be able to tell us better.

  
This is on a 2.6.23-rc3 kernel with vmcoreinfo patches and a dump file
with -l 31 (dump level 31, omitting all possible pages).

    

Thanks
Vivek

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Crash-utility mailing list
Crash-utility@redhat.com
https://www.redhat.com/mailman/listinfo/crash-utility

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