Bug 530389
| Summary: | allow userspace to adjust kvmclock offset | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Glauber Costa <gcosta> | ||||
| Component: | kernel | Assignee: | Justin M. Forbes <jforbes> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 13 | CC: | dougsland, gansalmon, itamar, jforbes, kernel-maint, markmc, virt-maint | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | |||||||
| : | 554504 (view as bug list) | Environment: | |||||
| Last Closed: | 2010-09-03 14:07:55 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: | 498969, 554504 | ||||||
| Attachments: |
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Description
Glauber Costa
2009-10-22 15:46:13 UTC
scratch build at : http://koji.fedoraproject.org/koji/taskinfo?taskID=1763328 Created attachment 365834 [details]
Patch for it.
Okay, it's queued up in Avi's tree here: http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git;a=commitdiff;h=a6048dd2da http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git;a=commitdiff;h=958b0c5497 which means it should be in 2.6.33 The qemu-kvm side is here: http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=e4d6d49061 http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=11ed4b344c http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=79529cd015 which should be in qemu-kvm-0.12.0 Glauber: are you proposing to pull the new ioctl for 2.6.31 in Fedora 12? What are the symptoms of the bug? i.e. how bad is it? could it wait until Fedora 13? (In reply to comment #3) > Okay, it's queued up in Avi's tree here: > > > http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git;a=commitdiff;h=a6048dd2da > > http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git;a=commitdiff;h=958b0c5497 > > which means it should be in 2.6.33 > > The qemu-kvm side is here: > > http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=e4d6d49061 > http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=11ed4b344c > http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=79529cd015 > > which should be in qemu-kvm-0.12.0 > > Glauber: are you proposing to pull the new ioctl for 2.6.31 in Fedora 12? I guess we could. The patch is there, and is already a backport to F12 tree, should apply just fine. So it's really up to the kernel maintainer. I can backport the userspace part if we get the kernel part working. > What are the symptoms of the bug? i.e. how bad is it? could it wait until > Fedora 13? Imagine two hosts A and B A has a smaller monotonic clock than B (say, B was booted first) If you migrate A -> B, you get a time jump. If you migrate B -> A, you get backwards timing, and machine hangs (In reply to comment #4) > (In reply to comment #3) > > Okay, it's queued up in Avi's tree here: > > > > > > http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git;a=commitdiff;h=a6048dd2da > > > > http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git;a=commitdiff;h=958b0c5497 > > > > which means it should be in 2.6.33 ... > > Glauber: are you proposing to pull the new ioctl for 2.6.31 in Fedora 12? > > I guess we could. The patch is there, and is already a backport to F12 tree, > should apply just fine. Ah, good - the patch you attached is the combination of both those commits. Justin, it sounds important enough to get this queued up for a post-GA update. This bug appears to have been reported against 'rawhide' during the Fedora 13 development cycle. Changing version to '13'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping F13 now has kernel 2.6.34 |