Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-08 06:10:17 +00:00
Code Issues Projects Releases Packages Wiki Activity

[3.13] gh-120158: Fix inconsistent monitoring state when setting events too frequently (gh-141845) (gh-141880)

Browse source 
If we overflowed the global version counter (i.e., after 2*24 calls to
`_PyMonitoring_SetEvents`), we bailed out after setting global monitoring
events but before instrumenting code objects, which led to assertion errors
later on.

Also add a `time.sleep()` to `test_free_threading.test_monitoring` to avoid
overflowing the global version counter.
(cherry picked from commit e457d60daa)
This commit is contained in:
Sam Gross 2025-11-23 10:30:37 -05:00 • committed by GitHub
parent e2d320b330
commit dbb539efc3
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
3 changed files with 6 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Python/instrumentation.c
View file

@ -1989,12 +1989,12 @@ _PyMonitoring_SetEvents(int tool_id, _PyMonitoringEventSet events)
if (existing_events == events) {
return 0;
}
set_events(&interp->monitors, tool_id, events);
uint32_t new_version = global_version(interp) + MONITORING_VERSION_INCREMENT;
if (new_version == 0) {
PyErr_Format(PyExc_OverflowError, "events set too many times");
return -1;
}
set_events(&interp->monitors, tool_id, events);
set_global_version(tstate, new_version);
#ifdef _Py_TIER2
_Py_Executors_InvalidateAll(interp, 1);