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[Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out
From: |
Serge Hallyn |
Subject: |
[Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console |
Date: |
Thu, 17 Apr 2014 04:44:06 -0000 |
A-ha, the reason is that this only triggers if the qemu window is
focused. Running the script while focusing does reproduce (and do other
weird things).
So perhaps this is happening in sdl_grab_start(), which exits early if
the app is not focused?
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https://bugs.launchpad.net/bugs/1257352
Title:
kvm hangs occasionally when switching out of the qemu console
Status in QEMU:
New
Status in “qemu” package in Ubuntu:
Confirmed
Bug description:
To recreate (although this does *NOT* fail most of the time alas):
1) press "ctrl-alt-2" to switch to the qemu console.
2) type say "sendkey ctrl-alt-f1"
3) press "ctrl-alt-1".
Expected outcome: Switch to tty1 in the VM.
Actual outcome: No switch to tty1 in the VM. and qemu console
unresponsive to any keyboard input.
Rather a vague problem description I'm afraid but this has happened to me 3
times recently. No crash and no excessive CPU is observed.
I'll grab an strace when it happens again and attach...
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-system-x86 1.6.0+dfsg-2ubuntu4
ProcVersionSignature: Ubuntu 3.12.0-4.12-generic 3.12.1
Uname: Linux 3.12.0-4-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.12.7-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Tue Dec 3 15:41:40 2013
InstallationDate: Installed on 2010-10-21 (1139 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
SourcePackage: qemu
UpgradeStatus: Upgraded to trusty on 2013-11-01 (31 days ago)
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- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console, James Hunt, 2014/04/15
- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console, Serge Hallyn, 2014/04/16
- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console, James Hunt, 2014/04/16
- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console, Serge Hallyn, 2014/04/16
- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console, Serge Hallyn, 2014/04/17
- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console,
Serge Hallyn <=
- [Qemu-devel] [Bug 1257352] Re: kvm hangs occasionally when switching out of the qemu console, Serge Hallyn, 2014/04/17