Bug 4934 - Memory leak in pthread_mutext_timedlock
Summary: Memory leak in pthread_mutext_timedlock
Status: NEW
Alias: None
Product: uClibc
Classification: Unclassified
Component: Threads (show other bugs)
Version: unspecified
Hardware: All Linux
: P5 normal
Target Milestone: ---
Assignee: unassigned
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-03-16 09:02 UTC by Markus Gilli
Modified: 2015-04-16 08:43 UTC (History)
2 users (show)

See Also:
Host:
Target:
Build:

Attachments
leaking test application (654 bytes, text/plain)
2012-03-16 09:03 UTC, Markus Gilli 		Details
patch to cleanup wait_node (1.41 KB, patch)
2012-03-16 15:43 UTC, Markus Gilli 		Details
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Markus Gilli 2012-03-16 09:02:11 UTC 
There is a memory leak in pthread_mutext_timedlock when the lock fails because of the given timeout. I wrote a small test application to reproduce it.

I'm using OpenWRT on a ARM CPU, which in fact used 0.9.29 of uclibc. But i checked the code behind "pthread_mutext_timedlock" and it's identical. So i guess the bug is still in there.
Comment 1 Markus Gilli 2012-03-16 09:03:58 UTC 
Created attachment 4148 [details]
leaking test application
Comment 2 Markus Gilli 2012-03-16 15:43:18 UTC 
Created attachment 4160 [details]
patch to cleanup wait_node

i've found the leak in __pthread_alt_timedlock. The cleanup was missing if the timeout happens.