| Summary: | backport fair event-channel notification | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Paolo Bonzini <pbonzini> |
| Component: | kernel-xen | Assignee: | Paolo Bonzini <pbonzini> |
| Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 5.6 | CC: | drjones, kkolakow, qcai, xen-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-04-18 08:41:14 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Bug Depends On: | |||
| Bug Blocks: | 514490, 648851 | ||
To test, start 5-10 guests 1 minute from each other, possibly with drives backed by a ram-disk (i.e. large files in tmpfs). fsmark/iozone on the guests should give roughly the same performance. c/s 324 and 325 went in as part of bug 456171; the others are cleanups, or otherwise provide diminishing returns. Not worth it. *** This bug has been marked as a duplicate of bug 456171 *** |
The following patches have been forward ported recently to pvops from 2.6.18-xen.hg: * 324:7fe1c6d02a2b * 325:b2768401db94 * 988:c88a02a22a05 * 990:427276ac595d * 991:9ba6d9f3fbc0 For RHEL5 the issue could even be exploited by a malicious domU to cause a DoS towards any domain whose backends have higher event channel numbers. I doubt it's severe enough to need a CVE, though. There is also no hurry to backport them to RHEL6 pvops (where we have no dom0 support), but it could be done for 6.2/6.3.