Hello again Benjamin!
Claude's reproducer seems to work well; I think I have all of the needed
information to push this through the SRU process.
With your PPA:
```
ubuntu@noble-vm:~/glibrepro$ apt-cache policy libglib2.0-0t64
libglib2.0-0t64:
Installed: 2.80.0-6ubuntu3.8ppa1
Candidate: 2.80.0-6ubuntu3.8ppa1
Version table:
*** 2.80.0-6ubuntu3.8ppa1 500
500
https://ppa.launchpadcontent.net/benh-kernel/glib2-noble-fixes/ubuntu
noble/main amd64 Packages
100 /var/lib/dpkg/status
2.80.0-6ubuntu3.8 500
500 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages
500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages
2.80.0-6ubuntu1 500
500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
N: Ignoring file 'proposed.sources.off' in directory '/etc/apt/sources.list.d/'
as it has an invalid filename extension
ubuntu@noble-vm:~/glibrepro$ ./gtask-pool-latch-repro
glib 2.80.0 (compiled against 2.80.0) mode=DEADLOCK
16 tasks running (pool grew via the watchdog)
inner sub-task RAN (~1000 ms after push): pool recovered [bug NOT reproduced
this run]
ubuntu@noble-vm:~/glibrepro$
```
Without your PPA:
```
ubuntu@noble-vm:~/glibrepro$ apt-cache policy libglib2.0-0t64
libglib2.0-0t64:
Installed: 2.80.0-6ubuntu3.8
Candidate: 2.80.0-6ubuntu3.8ppa1
Version table:
2.80.0-6ubuntu3.8ppa1 500
500
https://ppa.launchpadcontent.net/benh-kernel/glib2-noble-fixes/ubuntu
noble/main amd64 Packages
*** 2.80.0-6ubuntu3.8 500
500 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages
500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages
100 /var/lib/dpkg/status
2.80.0-6ubuntu1 500
500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages
N: Ignoring file 'proposed.sources.off' in directory '/etc/apt/sources.list.d/'
as it has an invalid filename extension
ubuntu@noble-vm:~/glibrepro$ ./gtask-pool-latch-repro
glib 2.80.0 (compiled against 2.80.0) mode=DEADLOCK
16 tasks running (pool grew via the watchdog)
... inner sub-task still queued after 5s (gtask.c promises pool growth within
~1s)
... inner sub-task still queued after 10s (gtask.c promises pool growth
within ~1s)
... inner sub-task still queued after 15s (gtask.c promises pool growth
within ~1s)
... inner sub-task still queued after 20s (gtask.c promises pool growth
within ~1s)
... inner sub-task still queued after 25s (gtask.c promises pool growth
within ~1s)
... inner sub-task still queued after 30s (gtask.c promises pool growth
within ~1s)
DEADLOCK: inner sub-task never started after 30s.
The GTask pool watchdog is disarmed (it only arms when a task
starts, never when one is queued) - the queued sub-task can only
run if one of the 16 blocked tasks completes, and the task they
are all blocked on is the queued one.
ubuntu@noble-vm:~/glibrepro$
```
There will be a bit of email spam while I update the SRU template in this bug
report.
Thanks again for your work here!
Best,
Alex
** Changed in: glib2.0 (Ubuntu Noble)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/2165869
Title:
glib2 GTask bug causes livelocks in Evolution (and others)
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