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Implement workaround for BETTER_BACKTRACES crash 

When compiling with BETTER_BACKTRACES enabled, Asterisk will sometimes
crash when "core show locks" is run. This happens regularly in the
testsuite since several tests run "core show locks" to help with
debugging. This seems to be a fault with libraries on certain operating
systems (notably CentOS 6.2/6.3) running on virtual machines and
utilizing gcc 4.4.6.

(closes issue ASTERISK-20090)
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Merged revisions 371690 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 371691 from http://svn.asterisk.org/svn/asterisk/branches/10
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Merged revisions 371692 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@371693 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kinsey Moore 2012-08-27 14:13:44 +00:00
parent 1295d551f9
commit e13db61695
1 changed files with 2 additions and 0 deletions
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2
main/utils.c
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@ -795,6 +795,8 @@ static void append_backtrace_information(struct ast_str **str, struct ast_bt *bt
return;
}
/* store frame count locally to avoid the memory corruption that
* sometimes happens on virtualized CentOS 6.x systems */
num_frames = bt->num_frames;
if ((symbols = ast_bt_get_symbols(bt->addresses, num_frames))) {
int frame_iterator;