Red Hat Bugzilla – Bug 283191
[RHEL5]: Xen kexec very often fails to succeed on certain hardware (HPET?)
Last modified: 2009-01-22 03:41:14 EST
Description of problem:
When using kdump on Xen kernels on certain pieces of hardware, I very often fail
the kexec. In particular, what happens is that I "echo c >
/proc/sysrq-trigger", the kexec kernel starts to come up, and then just hangs
around forever "Using HPET for base-timer" (I'll upload the complete log).
Sometimes it doesn't hang, but most times it actually does.
I'll also attach more information about the hardware, but it is an AMD system
with 8GB of RAM, running the 2.6.18-45.el5xen 32-bit kernel. The grub.conf
title Red Hat Enterprise Linux Server (2.6.18-45.el5.bz251341_chrisxen)
kernel /xen.gz-2.6.18-45.el5 com1=115200,8n1 crashkernel=128M@32M
module /vmlinuz-2.6.18-45.el5xen ro root=/dev/VolGroup00/LogVol00
Created attachment 190491 [details]
Full output from the hang after a kexec
Created attachment 190501 [details]
dmidecode from the machine that won't kexec reliably
> with 8GB of RAM
In that case, does it help if you use the PAE kernel for the kdump?
Probably another dup of 473038. Closing it as such.
*** This bug has been marked as a duplicate of bug 473038 ***