[Crash-utility] How to open 32 bit dom0 kdump....
antoniojavier09 at hotmail.com
antoniojavier09 at hotmail.com
Fri Sep 10 20:32:12 UTC 2010
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-----Original Message-----
From: Dave Anderson <anderson at redhat.com>
Sender: crash-utility-bounces at redhat.com
Date: Fri, 10 Sep 2010 16:27:02
To: Discussion list for crash utility usage,maintenance and development<crash-utility at redhat.com>
Reply-To: "Discussion list for crash utility usage,
maintenance and development" <crash-utility at redhat.com>
Subject: Re: [Crash-utility] How to open 32 bit dom0 kdump....
----- "Feng LI" <funglee at gmail.com> wrote:
> Sorry about the confusion, I don't have any domU guest running...
>
> My grub menu.lst is,
> kernel /boot/xen.gz watchdog=0 dom0_mem=1024M
> lowmem_emergency_pool=16M crashkernel=128M at 32M nmi=dom0
> module /boot/vmlinuz-2.6.27.42-0.1.1.xs5.6.0.44.111158xen ro
> ramdisk_size=250000 nmi_watchdog=0 xencons=off console=rcons0
> module /boot/initrd-5.6.0-31188p.img
>
> xen.gz is 64 bit one, while dom0 kernel is 32bit...
>
> I am using echo c > /proc/sysrq-trigger to generate the kernel dump.
>
> When I tried to open the kernel dump,
>
>
>
> [debugger at crash HV_crash]$ crash32 vmlinux-2.6.27
> vmcore-2010-09-02-22-30-38
>
> crash32 5.0.3
>
> ……………….
>
> This program has absolutely no warranty. Enter "help warranty" for
> details.
>
> WARNING: machine type mismatch:
> crash utility: X86
> vmcore-2010-09-02-22-30-38: X86_64
>
> crash32: vmcore-2010-09-02-22-30-38: not a supported file format
Well, for starters, the crash utility must match the vmlinux file type,
i.e., you should be using the 32-bit version.
What is the output of:
# readelf -a vmcore-010-09-02-22-30-38
Dave
>
> [debugger at crash HV_crash]$ crash64 vmlinux-2.6.27 vmcore-2010-09-02-22-30-38
>
> crash64 5.0.3
>
> ………………….
>
> WARNING: machine type mismatch:
> crash utility: X86_64
> vmlinux-2.6.27: X86
>
> crash64: vmlinux-2.6.27: not a supported file format
>
>
--
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