Your message dated Tue, 31 Dec 2013 16:00:29 +0100
with message-id <[email protected]>
and subject line Bug #465474 is out of scope
has caused the Debian Bug report #465474,
regarding asterisk: Please add thread-safe channel locking alternative
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
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--
465474: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=465474
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: asterisk
Version: 1:1.2.13~dfsg-2etch2
Severity: wishlist
Tags: patch
In some occasions ast_mutex_lock(&chan->lock) is used where chan could
already have been freed. This is of course not thread-safe.
In this case the only thread-safe way to atomically check for and lock a
channel would be to use channel_find_locked(). However this method has three
disadvantages in the described context:
- It is somewhat slow because it needs to do string comparison.
- You need some other information (besides the channel pointer) by which to
search.
- By trying to lock 10 times the semantics of channel_find_lock is something
like a compromise between lock and trylock.
(This is not what you want because if you can't lock chan->lock you
will probably want to release locks on mutexes outside of
channel_find_locked(), too before you try again.)
See patch for suggested solution.
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.22.7
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages asterisk depends on:
ii adduser 3.102 Add and remove users and groups
ii asterisk-bristuff 1:1.2.13~dfsg-2etch2 Open Source Private Branch Exchang
asterisk recommends no packages.
-- no debconf information
ast_channel_trylock_safe.dpatch
Description: application/shellscript
--- End Message ---
--- Begin Message ---
Bug #465474 is an code change suggested against asterisk 1.2. If this is still
relevant it
should be taken up with the upstream authors.
--- End Message ---
