Bug 637821 - 2.6.34 kernel destroys virtualization on amd opteron hardware
Summary: 2.6.34 kernel destroys virtualization on amd opteron hardware
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 13
Hardware: x86_64
OS: Linux
low
high
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-09-27 14:31 UTC by Tom Horsley
Modified: 2011-06-28 12:16 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2011-06-28 12:16:32 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Tom Horsley 2010-09-27 14:31:53 UTC
Description of problem:

After installing new f13 x86_64 kernel, the virsh command would always
hang. Examining the log finds many instances of junk like this:

Sep 27 09:59:32 xen kernel: INFO: task qemu-kvm:1759 blocked for more than 120 seconds.
Sep 27 09:59:32 xen kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 27 09:59:32 xen kernel: qemu-kvm      D 0000000000000003     0  1759      1 0x00000000
Sep 27 09:59:32 xen kernel: ffff88022bacdc48 0000000000000082 ffff88012b8e1770 ffff88022aba8000
Sep 27 09:59:32 xen kernel: ffff88022bacdfd8 ffff88022aba8000 00000000000153c0 ffff88022bacdfd8
Sep 27 09:59:32 xen kernel: 00000000000153c0 00000000000153c0 00000000000153c0 00000000000153c0
Sep 27 09:59:32 xen kernel: Call Trace:
Sep 27 09:59:32 xen kernel: [<ffffffff8144bd04>] __mutex_lock_common+0x152/0x1b9
Sep 27 09:59:32 xen kernel: [<ffffffff8144bd84>] __mutex_lock_slowpath+0x19/0x1b
Sep 27 09:59:32 xen kernel: [<ffffffff8144bea4>] mutex_lock+0x36/0x50
Sep 27 09:59:32 xen kernel: [<ffffffffa01dd83a>] ? might_fault+0x21/0x23 [kvm]
Sep 27 09:59:32 xen kernel: [<ffffffffa01d30b7>] vcpu_load+0x18/0x3a [kvm]
Sep 27 09:59:32 xen kernel: [<ffffffffa01deebd>] kvm_arch_vcpu_ioctl+0x877/0x96d [kvm]
Sep 27 09:59:32 xen kernel: [<ffffffffa01d09c5>] kvm_vcpu_ioctl+0x508/0x56e [kvm]
Sep 27 09:59:32 xen kernel: [<ffffffff8105ca3e>] ? send_signal+0x76/0x81
Sep 27 09:59:32 xen kernel: [<ffffffff8111aabf>] vfs_ioctl+0x32/0xa6
Sep 27 09:59:32 xen kernel: [<ffffffff8111b032>] do_vfs_ioctl+0x483/0x4c9
Sep 27 09:59:32 xen kernel: [<ffffffff81076771>] ? sys_futex+0x12c/0x147
Sep 27 09:59:32 xen kernel: [<ffffffff8111b0ce>] sys_ioctl+0x56/0x79
Sep 27 09:59:32 xen kernel: [<ffffffff81009c72>] system_call_fastpath+0x16/0x1b

Reverting back to the previous kernel-2.6.33.6-147.fc13.x86_64 makes
the system work fine.

Version-Release number of selected component (if applicable):
kernel-2.6.34.7-56.fc13.x86_64

How reproducible:
Seems 100%

Steps to Reproduce:
1.install new 2.6.34 kernel, watch libvirt puke
2.
3.
  
Actual results:
libvirt busted

Expected results:
working virtual host

Additional info:

The same 2.6.34 kernel installed on a second Intel xeon host system
works fine.

Comment 1 Bug Zapper 2011-05-31 12:28:58 UTC
This message is a reminder that Fedora 13 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 13.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '13'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 13's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 13 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 2 Bug Zapper 2011-06-28 12:16:32 UTC
Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.


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