Issue 2858: bsddb.db.DBEnv.lock_get test_lock.test03_set_timeout crashes (original) (raw)

Issue2858

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classification

Title: bsddb.db.DBEnv.lock_get test_lock.test03_set_timeout crashes
Type: crash Stage:
Components: Extension Modules Versions: Python 2.5

process

Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: gregory.p.smith Nosy List: gregory.p.smith, jcea, nnorwitz
Priority: high Keywords:

Created on 2008-05-15 05:09 by gregory.p.smith, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (4)
msg66845 - (view) Author: Gregory P. Smith (gregory.p.smith) * (Python committer) Date: 2008-05-15 05:08
I disabled the Lib/bsddb/test/test_lock.py test03_set_timeout test as it crashes the interpreter when compiled in debug mode with an UNREF test. It appears to happen on all platforms according to the buildbots. This is not a new problem, it exists in 2.5 if a backport the recent updates to this test. I did a little bit of debugging and it looks like the UNREF failure occurs when the call to DBEnv.lock_get is has exited and Python is freeing the internal callargs tuple passed as arguments to the method. A pointer in the callargs._ob_prev structure had the 0xdbdbdbdb value which I believe is a sign of BerkeleyDB overwriting the memory. Jesus, can you look into this one?
msg66959 - (view) Author: Jesús Cea Avión (jcea) * (Python committer) Date: 2008-05-16 17:24
Neal Norwitz did a patch for this. Hope it solves this issue. Neal, please, post the svn r number.
msg66975 - (view) Author: Gregory P. Smith (gregory.p.smith) * (Python committer) Date: 2008-05-17 06:13
I submitted a patch from Neal Norwitz after jcea reviewed it to trunk as r63403. I'll take care of backporting it to release25-maint.
msg66976 - (view) Author: Gregory P. Smith (gregory.p.smith) * (Python committer) Date: 2008-05-17 06:47
r63404 in release25-maint.
History
Date User Action Args
2022-04-11 14:56:34 admin set github: 47107
2008-05-17 06:47:04 gregory.p.smith set status: open -> closedresolution: fixedmessages: +
2008-05-17 06:13:26 gregory.p.smith set assignee: jcea -> gregory.p.smithmessages: + versions: - Python 2.6
2008-05-16 17:24:22 jcea set nosy: + nnorwitzmessages: +
2008-05-15 22:28:42 gregory.p.smith set assignee: jcea
2008-05-15 05:09:07 gregory.p.smith create