Your message dated Mon, 26 Oct 2026 14:28:14 +0000
with message-id <[email protected]>
and subject line Bug#1147228: fixed in python-pyinstrument 5.1.3+ds-2
has caused the Debian Bug report #1147228,
regarding python-pyinstrument: FTBFS against python 3.15rc2
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1147228: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1147228
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: src:python-pyinstrument
Version: 5.1.2+ds-1
User: [email protected]
Usertags: python3.15
Tags: patch, ftbfs, forky, sid
Severity: important
Hi!
While rebuilding the python related packages against the Python 3.15rc2
version we found that python-pyinstrument fails to build from source
[1].
The error is:
test/low_level/test_timing_thread.py Fatal Python error: Aborted
An immediate abort is triggered due to a double release_lock, in Python
3.15 this is checked while in previous versions it wasn't. To fix it,
I've added a patch that guards the call to PyThread_release_lock,
checking the removals value.
I've applied this fix in the sandbox [2] to verify that it builds
successfully, please consider applying the patch to support the upcoming
3.15 version. This patch should also be forwarded upstream.
Setting the severity to important for now. Once Python 3.15 is released,
it will be added to python3-defaults and this bug will become release
critical.
Happy hacking,
[1]: https://debusine.debian.net/debian/r-python-python3.15/artifact/4598672/
[2]: https://debusine.debian.net/debian/r-python-python3.15/
--
"Can you imagine what I would do if I could do all I can?" -- Sun Tzu
Saludos /\/\ /\ >< `/
From: Maximiliano Curia <[email protected]>
Date: Tue, 8 Sep 2026 11:52:35 +0200
Subject: timing_thread: Only release lock if a subscriber was removed
Avoid releasing update_lock when unsubscribe is called on an already
removed ID or when subscriber_count is already zero, which causes a crash
on Python 3.15 due to unlocking an unlocked mutex.
---
pyinstrument/low_level/pyi_timing_thread.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pyinstrument/low_level/pyi_timing_thread.c b/pyinstrument/low_level/pyi_timing_thread.c
index ebb9394..9c0ca82 100644
--- a/pyinstrument/low_level/pyi_timing_thread.c
+++ b/pyinstrument/low_level/pyi_timing_thread.c
@@ -124,7 +124,7 @@ int pyi_timing_thread_unsubscribe(int id) {
}
// if the last subscriber was removed, stop the thread
- if (subscriber_count == 0) {
+ if (removals > 0 && subscriber_count == 0) {
thread_should_exit = 1;
PyThread_release_lock(update_lock);
thread_alive = 0;
--- End Message ---
--- Begin Message ---
Source: python-pyinstrument
Source-Version: 5.1.3+ds-2
Done: Maximiliano Curia <[email protected]>
We believe that the bug you reported is fixed in the latest version of
python-pyinstrument, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Maximiliano Curia <[email protected]> (supplier of updated python-pyinstrument
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Mon, 26 Oct 2026 14:50:59 +0100
Source: python-pyinstrument
Architecture: source
Version: 5.1.3+ds-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Python Team <[email protected]>
Changed-By: Maximiliano Curia <[email protected]>
Closes: 1147228
Changes:
python-pyinstrument (5.1.3+ds-2) unstable; urgency=medium
.
* Team upload.
* [74e0d6c] Add patch to guard use of PyThread_release_lock with removals
(Closes: #1147228)
* [3222903] d/rules: Build docs using the default python3 build dir
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