Hi!
> Test can hang during startup in following scenario:
>
> main new thread
> --------------------------------------------------+-------------------------------------
> int create_thread(int prio, pthread_t * tid) |
> ... |
> pthread_create(tid, &attr, thread_func, NULL);|
> while (!thread_started) { |
> | void *thread_func(void
> *data)
> | thread_started = 1;
> |
> pthread_cond_signal(&cond);
> pthread_mutex_lock(&c_mutex); |
> 132: pthread_cond_wait(&cond, &c_mutex); |
> |65:
> pthread_mutex_lock(&mutex);
> |
>
> (gdb) bt
> #0 0x00007fd588808f6d in __lll_lock_wait () from /lib64/libpthread.so.0
> #1 0x00007fd588804d31 in _L_lock_790 () from /lib64/libpthread.so.0
> #2 0x00007fd588804c37 in pthread_mutex_lock () from /lib64/libpthread.so.0
> #3 0x0000000000400bba in thread_func (data=0x0) at
> ../../../conformance/interfaces/pthread_attr_setschedpolicy/2-1.c:65
> #4 0x00007fd588802de3 in start_thread () from /lib64/libpthread.so.0
> #5 0x00007fd5885300dd in clone () from /lib64/libc.so.6
> (gdb) t 2
> (gdb) bt
> #0 0x00007fd5888066f5 in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/libpthread.so.0
> #1 0x0000000000400d9b in create_thread (prio=5, tid=0x7fffdb562678) at
> ../../../conformance/interfaces/pthread_attr_setschedpolicy/2-1.c:132
> #2 0x0000000000400e82 in main () at
> ../../../conformance/interfaces/pthread_attr_setschedpolicy/2-1.c:174
>
> Fix this by using same c_mutex in thread_func for updating
> thread_started and signalling cond.
Looks good.
--
Cyril Hrubis
[email protected]
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