Bug 512319
Summary: | On rhel4.8 DomU after installing run virsh save/restore,the domU will freeze | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 4 | Reporter: | koka xiong <kxiong> |
Component: | kernel-xen | Assignee: | Andrew Jones <drjones> |
Status: | CLOSED DUPLICATE | QA Contact: | Red Hat Kernel QE team <kernel-qe> |
Severity: | medium | Docs Contact: | |
Priority: | low | ||
Version: | 4.8 | CC: | clalance, llim, xen-maint |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2009-07-21 17:28:42 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: |
Description
koka xiong
2009-07-17 10:09:33 UTC
Can you try this same test with RHEL 4.8, which has the PV-on-HVM drivers included? Unfortunately there was a bug prior to 4.8 which would cause hangs in the guest during save, and would cause something similar to this. If you can't reproduce on 4.8, then we'll just close this as CURRENTRELEASE. Chris Lalancette I have tried on rhel 4.8,on rhel 4.8,I can't install xenpv well.Please refer to bug 512326, So I have to try it on rhel 4.6 (In reply to comment #2) > I have tried on rhel 4.8,on rhel 4.8,I can't install xenpv well.Please refer to > bug 512326, > > So I have to try it on rhel 4.6 As I said in Comment #1 and BZ 512326 which I just closed, that's expected. The PV-on-HVM drivers are built in to the 4.8 kernel, so no xenpv-kmod package is required. Just modprobe xen-vnif and modprobe xen-vbd should work find after a 4.8 guest installation. Then try your test again. Chris Lalancette I have retested again on 4.8 kernel according to your suggestion. modprobe xen-vnif, modprobe xen-vbd then run virsh save domU filename virsh restore filename After the domU is restored, the screen is freezing,it has no response. OK, that's the information we're looking for, thanks. Andrew, any chance you can take a look at this, try to recreate, and see what's going on? Chris Lalancette I started looking at this today. I don't get a frozen screen, but my domU resets. I tried both modules separately and found that the save/restore works fine when only xen-vnif is loaded. xm dmesg shows some mfn errors after the failure. I'll continue looking at this Tuesday, since I have PTO Monday. Andrew This is a dup of 396631 which is a clone of 396621. The problem goes away using the 4.8 kernel, but modprobing in patched modules. Closing as a dup. *** This bug has been marked as a duplicate of bug 396631 *** Clearing out flags for reporting purposes. Chris Lalancette |