On 07/15/2015 08:41 AM, Yousf Ateya wrote:
Dear,
I started to see a strange deadlock in some asterisk nodes. For every
call, when calling pthread_exit from pbx_thread, the caller thread is
stuck inside pthread_exit.
After a while, there will be tens-of-thousands of threads having the
same backtrace. After some googling, I found this happens because of
the default lazy linking of gcc linker.
Related issue of stackoverflow:
http://stackoverflow.com/questions/11954527/dlopen-malloc-deadlock
Tried to recompile asterisk using:
export LDFLAGS=-Wl,-z,now
./configure && make && make install
and this deadlock problem didn't happen again; the problem cause is
lazy binding with libgcc.
Shall we add this option by default or add it in menuselect?
<snip>
--
Yousf Ateya,
StarkBits
www.starkbits.com <http://www.starkbits.com>
Thanks for this report. Based solely on the man page for ld(1), it
sounds like load-time binding would, at most, cause module loading to
take longer. Are there any other potential issues to making this change?
Mark Michelson
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