Red Hat Bugzilla – Bug 213858
Race condition concerning VLAPIC interrupts
Last modified: 2007-11-30 17:07:36 EST
Description of problem:
A race condition concerning virutalized interrupts (VLAPIC interrupts can be
lost) has been fixed.
Version-Release number of selected component (if applicable):
AMD has a virtual iron test that shows a dhrystone test problem
without the patch - and works with the patch. Fails eveytime
without the patch.
Patch has been pushed to xen unstable.
Created attachment 140246 [details]
The patch fixes a race condition concerning virutalized interrupts (VLAPIC interrupts can be lost).
Looks good to me. Time to get it through the management procedures; once the
idea has been approved we can push the patch to rhkernel-list to get it applied
to the hypervisor.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux release. Product Management has requested further review
of this request by Red Hat Engineering. This request is not yet committed for
inclusion in release.
QE ack for RHEL5.
I've posted the patch to rhkernek-list and virtual-list and has received 3 ACKs.
During our testing we found that this important patch was not included in the
kernel tree. Please include it so that the RC testing can be done without
having to pull in missing patches.
Markus is building a tree with the VLAPIC patch. Just wanted to mention it so
there is no duplication of effort.
2.6.18-7.el5 included in 20070125.0.