** Changed in: pygtk (Ubuntu Lucid)
Status: New = Won't Fix
** Changed in: pygtk (Ubuntu Maverick)
Status: Fix Committed = Won't Fix
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** Tags added: testcase
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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** Branch linked: lp:ubuntu/maverick-proposed/pygtk
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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Accepted pygtk into maverick-proposed, the package will build now and be
available in a few hours. Please test and give feedback here. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed. Thank you in advance!
** Tags removed: verification-done
**
For lucid, you need a different patch.
Probably one of those if it is using 2.17 rather than 2.2x:
http://patch-tracker.debian.org/patch/series/view/pygtk/2.17.0-4/60_pygtk-wakeupfd-fix.patch
https://bugzilla.redhat.com/attachment.cgi?id=477006action=diff
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Uploaded to maverick-proposed, waiting for SRU team to review.
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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I had a quick look at lucid but gtk.override seems really different and so I
couldn't get the patch to apply.
We'd need someone with more pygtk knowledge to port the patch to lucid's
** Changed in: pygtk (Ubuntu Maverick)
Status: Confirmed = Fix Committed
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In testing with my own python scripts I never saw the bug under Lucid.
It appeared only with Maverick.
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Title:
SRU: 100% CPU usage when calling a
Will this get a fix released to maverick ?
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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This bug was fixed in the package pygtk - 2.22.0-0ubuntu1.1
---
pygtk (2.22.0-0ubuntu1.1) natty-proposed; urgency=low
* debian/patches/04_fix_100%_cpu_in_signal_handling.patch:
- Upstream patch to fix thinko in pygtk signal handler glib source.
Without this, the source
Copied to oneiric as well.
** Changed in: pygtk (Ubuntu)
Status: Confirmed = Fix Released
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Title:
SRU: 100% CPU usage when calling a
** Changed in: pygtk (Ubuntu Maverick)
Status: New = Confirmed
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Title:
SRU: 100% CPU usage when calling a child process from a python
SRU verification for Natty:
I have reproduced the problem with pygtk 2.22.0-0ubuntu1 in natty and have
verified that the version of pygtk 2.22.0-0ubuntu1.1 in -proposed fixes the
issue.
Marking as verification-done
** Tags added: verification-done
** Tags removed: verification-needed
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Accepted pygtk into natty-proposed, the package will build now and be
available in a few hours. Please test and give feedback here. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed. Thank you in advance!
** Changed in: pygtk (Ubuntu Natty)
Please fix in oneiric so that this can proceed to -updates.
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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** Branch linked: lp:ubuntu/natty-proposed/pygtk
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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@Chris: the test case in comment #7 doesn't cause 100% cpu for me, so
I'm not sure it's a proper test case for SRU. But the debdiff in
comment #8 is obviously correct on the face of it, so it seems like a
reasonable patch to apply.
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Oops, never mind, it *is* reproducible.
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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Patch verified to work for me in Natty.
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Title:
SRU: 100% CPU usage when calling a child process from a python script
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** Also affects: pygtk (Ubuntu Lucid)
Importance: Undecided
Status: New
** Also affects: pygtk (Ubuntu Maverick)
Importance: Undecided
Status: New
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** Summary changed:
- 100% CPU usage when calling a child process from a python script
+ SRU: 100% CPU usage when calling a child process from a python script
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** Changed in: pygtk (Ubuntu)
Assignee: (unassigned) = Chris Halse Rogers (raof)
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Title:
SRU: 100% CPU usage when calling a child process
** Description changed:
- When creating a child process from a python script that uses pygtk 2.21,
- such subprocess.check_call(), 100% of the CPU is used (technically,
- 100% of the core the python interpreter is using).
+ == Impact ==
+
+ pygtk apps which handle signals busy-loop in the glib
The attached debdiff cherry-picks the upstream commit which fixes this.
** Patch added: Debdiff for SRU package.
https://bugs.launchpad.net/ubuntu/+source/pygtk/+bug/664920/+attachment/2089711/+files/cherry-pick-cpu-usage-fix.debdiff
** Changed in: pygtk (Ubuntu)
Assignee: Chris Halse
** Also affects: pygtk (Ubuntu Natty)
Importance: Undecided
Status: Confirmed
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Title:
SRU: 100% CPU usage when calling a child process
Great to see this will be fixed in Natty, thanks Chris.
Could this patch could also be backported to Maverick/Lucid?
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Title:
SRU: 100% CPU usage
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