Bug 1394403

Summary:

Since upgrade to RHEL7.3 VMs randomly hang at reboot

Product:

Red Hat Enterprise Linux 7

Reporter:

Joe Kirby <jkirby>

Component:

seabios

Assignee:

Ademar Reis <areis>

Status:

CLOSED DUPLICATE

QA Contact:

Virtualization Bugs <virt-bugs>

Severity:

urgent

Docs Contact:

Priority:

unspecified

Version:

7.3

CC:

chayang, dyuan, gkable, jdenemar, jkirby, jsuchane, juzhang, knoel, kraxel, lmen, rbalakri, sbognann, virt-maint, xuzhang, yafu

Target Milestone:

Keywords:

Regression

Target Release:

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Hardware:

x86_64

OS:

Linux

Whiteboard:

Fixed In Version:

Doc Type:

If docs needed, set a value

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2016-11-15 14:17:34 UTC

Type:

Bug

Regression:

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Mount Type:

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Documentation:

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CRM:

Verified Versions:

Category:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Attachments:

Description	Flags
Debug of failed reboots	none

Description Joe Kirby 2016-11-11 21:22:27 UTC

Description of problem:
These were working dependably on 7.2. After the 7.3 update the VM will start find, shutdown fine, but randomly hang on reboot.

Version-Release number of selected component (if applicable):
libvirt-2.0.0-10.el7.x86_64

How reproducible:
Random, but frequent

Steps to Reproduce:
1. Reboot a VM
2.
3.

Actual results:
VM will randomly hangs during BIOS. It looks like a machine that has an empty boot block, a blinking cursor in the upper left corner.

Expected results:
The VM boots

Additional info:
The kernel doesn't seem to make any difference. We have tried with both the released 7.3 kernel and the 7.2 kernel we had been running.

Comment 2 Joe Kirby 2016-11-12 12:38:17 UTC

sbognann has potentially identified seabios-bin as the culprit.

Comment 3 Jaroslav Suchanek 2016-11-13 17:10:35 UTC

Hi,

could you please provide libvirt debug log and qemu log of the vm? But from the description it does not look like a libvirt issue...

Thanks.

Comment 4 Greg Kable 2016-11-15 05:21:04 UTC

Attached is a log of me replicating the problem with a VM called
examserver-ex300-QA-xxxx-xxxx-xxxx-xxxxxxxxxxx.  While the log was
running, I ran 'init 6' from within the VM and it hung.  I then stopped
it, started it and ran init 6 again and it hung again.  Probably not
shown in the log is that the VM will sometimes hang and sometimes show
in virsh as paused but unresumable:

[root@9610 ~]# virsh list
 Id    Name                           State
----------------------------------------------------
 3     examserver-ex300-QA-xxxx-xxxx-xxxx-xxxxxxxxxxx paused

[root@9610 ~]# virsh resume 3
error: Failed to resume domain 3
error: internal error: unable to execute QEMU command 'cont': Resetting
the Virtual Machine is required

Also, as previously noted, we have found that downgrading seabios-bin
from seabios-bin-1.9.1-5.el7.noarch to seabios-bin-1.7.5-11.el7.noarch
solves the problem.

Thanks,
	Greg

Comment 5 Greg Kable 2016-11-15 05:22:24 UTC

Created attachment 1220678 [details]
Debug of failed reboots

Comment 7 Ademar Reis 2016-11-15 14:17:34 UTC


*** This bug has been marked as a duplicate of bug 1394469 ***