Bug 594702 - kvm emulation failed
Summary: kvm emulation failed
Keywords:
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kvm
Version: 5.7
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Eduardo Habkost
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks: Rhel5KvmTier2
TreeView+ depends on / blocked
 
Reported: 2010-05-21 11:54 UTC by Florian La Roche
Modified: 2011-01-14 15:44 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-01-14 15:44:04 UTC


Attachments (Terms of Use)

Description Florian La Roche 2010-05-21 11:54:32 UTC
Description of problem:

Starting several kvm guests on a amd-based system sometimes fails with:
kernel: emulation failed (pagetable) rip 45 66 ff 2e 2c



Version-Release number of selected component (if applicable):
kmod-kvm-83-164.el5
kvm-tools-83-164.el5
kvm-83-164.el5




How reproducible:


Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:

Comment 4 Eduardo Habkost 2010-10-01 19:03:28 UTC
More information is needed to investigate this. Especially:

 * Which guest OSes (and their versions) are running when this error happens?
 * What happens to the guests when this error is generated? Does the qemu-kvm process terminate? Does it keep running, but the guest crashes?
 * Some specific operation is required to reproduce the crash? the RIP value shown on the error is very small. Does it happen while booting or rebooting the virtual machine?

Can you provide:
 * /proc/cpuinfo information from the host
 * libvirt XML configuration used to launch the guest (or qemu-kvm command-line)


Sorry for taking so long to reply.

Comment 7 RHEL Product and Program Management 2011-01-11 20:45:18 UTC
This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated in the
current release, Red Hat is unfortunately unable to address this
request at this time. Red Hat invites you to ask your support
representative to propose this request, if appropriate and relevant,
in the next release of Red Hat Enterprise Linux.

Comment 8 RHEL Product and Program Management 2011-01-11 22:51:40 UTC
This request was erroneously denied for the current release of
Red Hat Enterprise Linux.  The error has been fixed and this
request has been re-proposed for the current release.

Comment 9 Eduardo Habkost 2011-01-14 15:44:04 UTC
Not enough information to investigate. Closing.


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