| 2011-02-07 00:33:49 |
Brian Knoll |
bug |
|
|
added bug |
| 2011-02-07 01:21:36 |
Brian Knoll |
description |
Binary package hint: qemu-kvm
SMP Linux guests are hanging under KVM. This does not happen always, but at least 50% of the time or so.
If I start the guests with "-smp 1" or just completely omit the "-smp" parameter this doesn't happen.
I can also say that it doesn't seem to happen on a Nehalem-based 8-core Xeon-based machine I've tried it on, but it does happen on both an AMD Phenom II 965 machine (the one this bug report is from) as well as an AMD Phenom II 1090T-based machine.
I am starting the VMs from the command line, manually running qemu-kvm with a command like the following:
qemu-system-x86_64 -m 1024 -smp 1 -cpu host -drive file=/var/local/kvm/machine.qcow2,if=virtio,cache=off,boot=on -net nic,model=virtio,macaddr=77:88:99:12:34:56 -net tap -nographic -daemonize
Additional Information:
Description: Ubuntu 10.04.2 LTS
Release: 10.04
qemu-kvm:
Installed: 0.12.3+noroms-0ubuntu9.3
Candidate: 0.12.3+noroms-0ubuntu9.3
Version table:
*** 0.12.3+noroms-0ubuntu9.3 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
100 /var/lib/dpkg/status
0.12.3+noroms-0ubuntu9 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: qemu-kvm 0.12.3+noroms-0ubuntu9.3
ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-server x86_64
Architecture: amd64
Date: Sun Feb 6 19:11:57 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server root=UUID=941072c0-f822-44b4-b61c-09b6daadcb7c ro quiet splash clocksource=pit
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: qemu-kvm
dmi.bios.date: 08/18/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1006
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A785-M
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1006:bd08/18/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer |
Binary package hint: qemu-kvm
SMP Linux guests are hanging under KVM. This does not happen always, but at least 50% of the time or so.
If I start the guests with "-smp 1" or just completely omit the "-smp" parameter this doesn't happen.
I can also say that it doesn't seem to happen on a Nehalem-based 8-core Xeon-based machine I've tried it on, but it does happen on both an AMD Phenom II 965 machine (the one this bug report is from) as well as an AMD Phenom II 1090T-based machine.
I am starting the VMs from the command line, manually running qemu-kvm with a command like the following:
qemu-system-x86_64 -m 1024 -smp 4 -cpu host -drive file=/var/local/kvm/machine.qcow2,if=virtio,cache=off,boot=on -net nic,model=virtio,macaddr=77:88:99:12:34:56 -net tap -nographic -daemonize
Additional Information:
Description: Ubuntu 10.04.2 LTS
Release: 10.04
qemu-kvm:
Installed: 0.12.3+noroms-0ubuntu9.3
Candidate: 0.12.3+noroms-0ubuntu9.3
Version table:
*** 0.12.3+noroms-0ubuntu9.3 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
100 /var/lib/dpkg/status
0.12.3+noroms-0ubuntu9 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: qemu-kvm 0.12.3+noroms-0ubuntu9.3
ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-server x86_64
Architecture: amd64
Date: Sun Feb 6 19:11:57 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server root=UUID=941072c0-f822-44b4-b61c-09b6daadcb7c ro quiet splash clocksource=pit
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: qemu-kvm
dmi.bios.date: 08/18/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1006
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A785-M
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1006:bd08/18/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
|
|
| 2011-02-07 10:38:26 |
Brian Knoll |
tags |
amd64 apport-bug lucid |
amd64 apport-bug kvm lucid qemu-kvm virtualization |
|
| 2011-02-07 16:18:59 |
Serge Hallyn |
qemu-kvm (Ubuntu): status |
New |
Incomplete |
|
| 2011-02-09 19:37:13 |
Brian Knoll |
qemu-kvm (Ubuntu): status |
Incomplete |
Confirmed |
|
| 2011-02-10 13:04:46 |
Brian Knoll |
bug watch added |
|
http://sourceforge.net/support/tracker.php?aid=2968899 |
|
| 2011-02-15 05:06:58 |
altivec |
bug |
|
|
added subscriber altivec |
| 2011-02-18 17:22:56 |
Serge Hallyn |
qemu-kvm (Ubuntu): importance |
Undecided |
Medium |
|
| 2011-02-21 01:10:41 |
Pior Bastida |
bug |
|
|
added subscriber Pior Bastida |
| 2011-02-28 18:11:29 |
Serge Hallyn |
summary |
KVM SMP Linux Guests Hang |
KVM SMP Linux Guests Hang on AMD |
|
| 2011-03-01 00:38:49 |
Serge Hallyn |
attachment added |
|
kernel patch attempting to recreate the two fixes from upstream https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/714335/+attachment/1877692/+files/0001-kvm-cherrypick-three-kvm-fixes.patch |
|
| 2011-03-01 16:10:57 |
Serge Hallyn |
affects |
qemu-kvm (Ubuntu) |
linux (Ubuntu) |
|
| 2011-03-01 16:33:33 |
Serge Hallyn |
description |
Binary package hint: qemu-kvm
SMP Linux guests are hanging under KVM. This does not happen always, but at least 50% of the time or so.
If I start the guests with "-smp 1" or just completely omit the "-smp" parameter this doesn't happen.
I can also say that it doesn't seem to happen on a Nehalem-based 8-core Xeon-based machine I've tried it on, but it does happen on both an AMD Phenom II 965 machine (the one this bug report is from) as well as an AMD Phenom II 1090T-based machine.
I am starting the VMs from the command line, manually running qemu-kvm with a command like the following:
qemu-system-x86_64 -m 1024 -smp 4 -cpu host -drive file=/var/local/kvm/machine.qcow2,if=virtio,cache=off,boot=on -net nic,model=virtio,macaddr=77:88:99:12:34:56 -net tap -nographic -daemonize
Additional Information:
Description: Ubuntu 10.04.2 LTS
Release: 10.04
qemu-kvm:
Installed: 0.12.3+noroms-0ubuntu9.3
Candidate: 0.12.3+noroms-0ubuntu9.3
Version table:
*** 0.12.3+noroms-0ubuntu9.3 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
100 /var/lib/dpkg/status
0.12.3+noroms-0ubuntu9 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: qemu-kvm 0.12.3+noroms-0ubuntu9.3
ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-server x86_64
Architecture: amd64
Date: Sun Feb 6 19:11:57 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server root=UUID=941072c0-f822-44b4-b61c-09b6daadcb7c ro quiet splash clocksource=pit
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: qemu-kvm
dmi.bios.date: 08/18/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1006
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A785-M
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1006:bd08/18/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
|
Binary package hint: qemu-kvm
=========================================
SRU Justification
1. impact: KVM smp guests hang on AMD
2. how was the bug addressed: Two upstream commits (plus a third auxiliary) were re-implemented on lucid's kernel.
3. patch: see comment #27
4. TEST CASE: in lucid, on an AMD box, start a guest with '-smp 2'.
5. regression: Honestly this one scares me a bit because it was a tricky cherrypick, and affects timekeeping for all kvm users on x86 lucid. In theory timekeeping on guests could be adversely affected, or guests could fail to boot. However, guests have been tested on both AMD and intel hosts.
=========================================
SMP Linux guests are hanging under KVM. This does not happen always, but at least 50% of the time or so.
If I start the guests with "-smp 1" or just completely omit the "-smp" parameter this doesn't happen.
I can also say that it doesn't seem to happen on a Nehalem-based 8-core Xeon-based machine I've tried it on, but it does happen on both an AMD Phenom II 965 machine (the one this bug report is from) as well as an AMD Phenom II 1090T-based machine.
I am starting the VMs from the command line, manually running qemu-kvm with a command like the following:
qemu-system-x86_64 -m 1024 -smp 4 -cpu host -drive file=/var/local/kvm/machine.qcow2,if=virtio,cache=off,boot=on -net nic,model=virtio,macaddr=77:88:99:12:34:56 -net tap -nographic -daemonize
Additional Information:
Description: Ubuntu 10.04.2 LTS
Release: 10.04
qemu-kvm:
Installed: 0.12.3+noroms-0ubuntu9.3
Candidate: 0.12.3+noroms-0ubuntu9.3
Version table:
*** 0.12.3+noroms-0ubuntu9.3 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
100 /var/lib/dpkg/status
0.12.3+noroms-0ubuntu9 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: qemu-kvm 0.12.3+noroms-0ubuntu9.3
ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-server x86_64
Architecture: amd64
Date: Sun Feb 6 19:11:57 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server root=UUID=941072c0-f822-44b4-b61c-09b6daadcb7c ro quiet splash clocksource=pit
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: qemu-kvm
dmi.bios.date: 08/18/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1006
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A785-M
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1006:bd08/18/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer |
|
| 2011-03-01 16:33:45 |
Serge Hallyn |
nominated for series |
|
Ubuntu Lucid |
|
| 2011-03-01 17:35:02 |
Brian Murray |
bug |
|
|
added subscriber Jeremy Foshee |
| 2011-03-07 14:37:08 |
Serge Hallyn |
bug |
|
|
added subscriber Serge Hallyn |
| 2011-03-14 19:01:38 |
Brian Murray |
bug task added |
|
linux (Ubuntu Lucid) |
|
| 2011-03-14 19:02:02 |
Brian Murray |
linux (Ubuntu Lucid): importance |
Undecided |
Medium |
|
| 2011-03-14 19:02:02 |
Brian Murray |
linux (Ubuntu Lucid): status |
New |
Triaged |
|
| 2011-03-15 08:45:55 |
Stefan Bader |
linux (Ubuntu): status |
Confirmed |
Fix Released |
|
| 2011-03-15 08:46:43 |
Stefan Bader |
linux (Ubuntu Lucid): status |
Triaged |
In Progress |
|
| 2011-03-15 08:46:43 |
Stefan Bader |
linux (Ubuntu Lucid): assignee |
|
Stefan Bader (stefan-bader-canonical) |
|
| 2011-04-27 11:40:38 |
Stefan Bader |
linux (Ubuntu Lucid): status |
In Progress |
Fix Committed |
|
| 2011-09-19 21:44:22 |
Ubuntu Foundations Team Bug Bot |
tags |
amd64 apport-bug kvm lucid qemu-kvm virtualization |
amd64 apport-bug kvm lucid qemu-kvm testcase virtualization |
|
| 2011-10-05 21:36:25 |
Jeremy Foshee |
removed subscriber Jeremy Foshee |
|
|
|
| 2011-10-10 15:39:47 |
Stefan Bader |
linux (Ubuntu Lucid): status |
Fix Committed |
Fix Released |
|
