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| author | Amaury Forgeot d'Arc <amauryfa@gmail.com> | 2008-07-01 20:59:49 (GMT) |
|---|---|---|
| committer | Amaury Forgeot d'Arc <amauryfa@gmail.com> | 2008-07-01 20:59:49 (GMT) |
| commit | b15bdf7f7a736f49f783ab75904e6b2438449743 (patch) | |
| tree | cf3edb347f78d01c4ee03d06c05fb107aedc9937 /Misc | |
| parent | ceda6a67ce93dd9ac982ead61a23f98f85ea1821 (diff) | |
| download | cpython-b15bdf7f7a736f49f783ab75904e6b2438449743.zip cpython-b15bdf7f7a736f49f783ab75904e6b2438449743.tar.gz cpython-b15bdf7f7a736f49f783ab75904e6b2438449743.tar.bz2 | |
#Issue3088 in-progress: Race condition with instances of classes derived from threading.local:
When a thread touches such an object for the first time, a new thread-local __dict__ is created,
and the __init__ method is run.
But a thread switch can occur here; if the other thread touches the same object, it installs another
__dict__; when the first thread resumes, it updates the dictionary of the second...
This is the deep cause of the failures in test_multiprocessing involving "managers" objects.
Backport of r64601.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -16,6 +16,10 @@ Core and builtins set to a custom object whose write() method happens to install another file in sys.stdout. +- Issue #3088: Corrected a race condition in classes derived from + threading.local: the first member set by a thread could be saved in + another thread's dictionary. + - Issue #3100: Corrected a crash on deallocation of a subclassed weakref which holds the last (strong) reference to its referent. |