1:50 p.m.
Hey you all,
I am a kind of new to xen kernel dump analysis. Right now I have a fishy
problem. I have generated vmcore dump from dom0 which is 32 bit PAE linux
kernel running over 64 bit XEN kernel.
BUT, I have diverticulitis to open the vmcore file. If I open it with
crash32, crash32 would complain that vmcore is 64 bit image, while crash64
would complain dom0 kernel image is 32 bit.
Could any body solve my problem ?
Thanks in advance for any help and suggestions.
Yours
Kevin F LI
2:17 p.m.
----- "Feng LI" <funglee(a)gmail.com> wrote:
Hey you all,
I am a kind of new to xen kernel dump analysis. Right now I have a
fishy problem. I have generated vmcore dump from dom0 which is 32 bit
PAE linux kernel running over 64 bit XEN kernel.
BUT, I have diverticulitis to open the vmcore file. If I open it with
crash32, crash32 would complain that vmcore is 64 bit image, while
crash64 would complain dom0 kernel image is 32 bit.
Could any body solve my problem ?
Thanks in advance for any help and suggestions.
Can you explain again what your setup is? I don't understand what
you mean when you say that you "have generated vmcore dump from dom0
which is 32 bit PAE linux kernel running over 64 bit XEN kernel".
What crashed -- the 64-bit dom0 kernel or the 32-bit domU guest kernel?
Dave
Yours
Kevin F LI
2:36 p.m.
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@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@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
*[debugger@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
Thanks Dave.
On Fri, Sep 10, 2010 at 3:17 PM, Dave Anderson <anderson(a)redhat.com> wrote:
----- "Feng LI" <funglee(a)gmail.com> wrote:
> Hey you all,
>
> I am a kind of new to xen kernel dump analysis. Right now I have a
> fishy problem. I have generated vmcore dump from dom0 which is 32 bit
> PAE linux kernel running over 64 bit XEN kernel.
>
> BUT, I have diverticulitis to open the vmcore file. If I open it with
> crash32, crash32 would complain that vmcore is 64 bit image, while
> crash64 would complain dom0 kernel image is 32 bit.
>
> Could any body solve my problem ?
> Thanks in advance for any help and suggestions.
Can you explain again what your setup is? I don't understand what
you mean when you say that you "have generated vmcore dump from dom0
which is 32 bit PAE linux kernel running over 64 bit XEN kernel".
What crashed -- the 64-bit dom0 kernel or the 32-bit domU guest kernel?
Dave
>
> Yours
> Kevin F LI
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LI, Feng