@chenz in #64 - good catch. We looked at errors.ubuntu.com and while
there are a few related reports of this problem in versions of lsb later
than precise-upgrades version 4.0-0ubuntu20.2, we think these are
version mismatches. We see orders of magnitude more reports against
precise's version.
So, I'm going to SRU a fix which switches from commands to subprocess,
since 1) this is closer to the change in the code post-precise anyway,
and 2) it's easier to make this change than to fix Python 2.7's commands
module.
We also have a suspicion that this problem *could* be the root cause of
LP: #982082 although we have no direct evidence of that. Call it a
hunch. We'll see if reports of that problem get reduced when this SRU
lands.
** Changed in: lsb (Ubuntu)
Assignee: (unassigned) => Barry Warsaw (barry)
** Changed in: lsb (Ubuntu)
Status: Confirmed => In Progress
** Description changed:
Add-ons:
globalm...@ubuntu.com:2.0.4,langpack...@firefox.mozilla.org:11.0,langpack-en...@firefox.mozilla.org:11.0,langpack-en...@firefox.mozilla.org:11.0,langpack-es...@firefox.mozilla.org:11.0,langpack-es...@firefox.mozilla.org:11.0,langpack-es...@firefox.mozilla.org:11.0,langpack-es...@firefox.mozilla.org:11.0,langpack-pt...@firefox.mozilla.org:11.0,langpack-pt...@firefox.mozilla.org:11.0,langpack-zh...@firefox.mozilla.org:11.0,ubu...@ubuntu.com:2.0.1,{972ce4c6-7e08-4474-a285-3208198ce6fd}:11.0
BuildID: 20120313141405
CrashTime: 1356689682
EMCheckCompatibility: true
FramePoisonBase: 00000000f0dea000
FramePoisonSize: 4096
InstallTime: 1356685662
Notes: OpenGL: X.Org R300 Project -- Gallium 0.4 on ATI RV515 -- 2.1 Mesa
8.0.2 -- texture_from_pixmap
ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
ProductName: Firefox
ReleaseChannel: release
SecondsSinceLastCrash: 18
StartupTime: 1356689673
Theme: classic/1.0
Throttleable: 1
URL: http://ubuntuforums.org/private.php?s=&pp=&folderid=0
Vendor: Mozilla
Version: 11.0
This report also contains technical information about the state of the
application when it crashed.
ProblemType: CrashDistroRelease: Ubuntu 12.04
Package: lsb-release 4.0-0ubuntu20
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic-pae 3.2.12
Uname: Linux 3.2.0-20-generic-pae i686
ApportVersion: 1.95-0ubuntu1
Architecture: i386
Date: Fri Dec 28 09:42:36 2012
ExecutablePath: /usr/bin/lsb_release
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/lsb_release -a
ProcEnviron:
TERM=linux
PATH=(custom, no user)
PythonArgs: ['/usr/bin/lsb_release', '-a']SourcePackage: lsb
Title: lsb_release crashed with IOError in getstatusoutput(): [Errno 10] No
child processes
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+
+ [Impact]
+ SIGCHLD in lsb_release isn't handled correctly by Python causing the error
code 10 IOError in some cases. Upstream Python has a fixed subprocess module,
so switching from commands (where it is not fix) to subprocess (where it is
fixed) should do the trick. Versions of lsb after precise are not affected
because they use subprocess anyway, so this just backports that relatively
mechanical change.
+
+ [Test Case]
+ Difficult to reproduce outside of teamviewer, but the following should work
to verify that there is no regression: `lsb_release -a`
+
+ [Regression Potential]
+ If the patch to use subprocess is broken, then lsb_release may cease to work.
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https://bugs.launchpad.net/bugs/1094218
Title:
lsb_release crashed with IOError in getstatusoutput(): [Errno 10] No
child processes (called by teamviewerd)
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