Red Hat Bugzilla – Bug 242143
[RHEL5.1][XEN][IA64] Skip MCA setup on domU
Last modified: 2013-07-03 09:47:37 EDT
Description of problem:
This effectively automates passing the nomca flag to domUs,
preventing them from setting up CMC/CPE interrupts. This saves
3 dynamic IRQs per processor and allows us to get domUs up to 64
vCPUs without increasing the number of dynamic IRQs available.
cset#14805 fixes the issue.
This request was evaluated by Red Hat Kernel Team for inclusion in a Red
Hat Enterprise Linux maintenance release, and has moved to bugzilla
You can download this test kernel from http://people.redhat.com/dzickus/el5
change QA contact
Confirmed patch is in the -47.el5 kernel
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.