Bug 712439
| Summary: | Backport "x86: extend debug key 't' to collect useful clock skew info" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Paolo Bonzini <pbonzini> |
| Component: | kernel-xen | Assignee: | Paolo Bonzini <pbonzini> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 5.6 | CC: | drjones, leiwang, lersek, pcao, qguan, qwan, 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: | 2012-02-21 03:35:23 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 514490, 648852 | ||
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Description
Paolo Bonzini
2011-06-10 15:54:44 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. Patch(es) available in kernel-2.6.18-282.el5 You can download this test kernel (or newer) from http://people.redhat.com/jwilson/el5 Detailed testing feedback is always welcomed. Verify this fix with 2.6.18-298.el5xen. # xm debug-key h ; xm dmesg | grep clock (XEN) key \047t\047 (ascii \04774\047) => display multi-cpu clock info # xm debug-key t; xm dmesg | tail (XEN) key \047u\047 (ascii \04775\047) => dump numa info (XEN) key \047v\047 (ascii \04776\047) => dump Intel\047s VMCS (XEN) key \047z\047 (ascii \0477a\047) => print ioapic info (XEN) Synced stime skew: max=414ns avg=414ns samples=1 current=414ns (XEN) Synced cycles skew: max=2019 avg=2019 samples=1 current=2019 (XEN) Synced stime skew: max=457ns avg=435ns samples=2 current=457ns (XEN) Synced cycles skew: max=2019 avg=2007 samples=2 current=1995 (XEN) Synced stime skew: max=745ns avg=538ns samples=3 current=745ns (XEN) Synced cycles skew: max=3021 avg=2345 samples=3 current=3021 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHSA-2012-0150.html |