kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2026-01-06 18:13:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

core: Add cache_media_frames debugging option.

Browse Source 
The media frame cache gets in the way of finding use after free errors of
media frames.  Tools like valgrind and MALLOC_DEBUG don't know when a
frame is released because it gets put into the cache instead of being
freed.

* Added the "cache_media_frames" option to asterisk.conf.  Disabling the
option helps track down media frame mismanagement when using valgrind or
MALLOC_DEBUG.  The cache gets in the way of determining if the frame is
used after free and who freed it.  NOTE: This option has no effect when
Asterisk is compiled with the LOW_MEMORY compile time option enabled
because the cache code does not exist.

To disable the media frame cache simply disable the cache_media_frames
option in asterisk.conf and restart Asterisk.

Sample asterisk.conf setting:
[options]
cache_media_frames=no

ASTERISK-27413

Change-Id: I0ab2ce0f4547cccf2eb214901835c2d951b78c00
This commit is contained in:
Richard Mudgett
2017-11-11 13:01:47 -06:00
parent 6f1910d6ec
commit 90bb0a3e10
6 changed files with 45 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
configs/samples/asterisk.conf.sample
View File

@@ -44,6 +44,15 @@ astsbindir => /usr/sbin
;minmemfree = 1 ; In MBs, Asterisk stops accepting new calls if
; the amount of free memory falls below this
; watermark.
;cache_media_frames = yes ; Cache media frames for performance
; Disable this option to help track down media frame
; mismanagement when using valgrind or MALLOC_DEBUG.
; The cache gets in the way of determining if the
; frame is used after being freed and who freed it.
; NOTE: This option has no effect when Asterisk is
; compiled with the LOW_MEMORY compile time option
; enabled because the cache code does not exist.
; Default yes
;cache_record_files = yes ; Cache recorded sound files to another
; directory during recording.
;record_cache_dir = /tmp ; Specify cache directory (used in conjunction