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| author | Till Strauman <strauman@slac.stanford.edu> | 2013-12-17 18:01:11 -0600 |
|---|---|---|
| committer | Gedare Bloom <gedare@rtems.org> | 2014-01-09 10:24:12 -0500 |
| commit | a19a7077ee82a0189a45105df56029abd7804bd6 (patch) | |
| tree | 8be0753bd3a7bbf198769dacd3ec8071f39386d1 /cpukit/posix | |
| parent | libtests/termios01: Add tests for cfsetspeed() and cfmakeraw() (diff) | |
| download | rtems-a19a7077ee82a0189a45105df56029abd7804bd6.tar.bz2 | |
posix: fix race condition between pthread_create and capture engine
Reproducable crashes occur when using pthreads and the capture engine
at the same time. 'pthread_create()' is the culprit. It creates a SCORE thread
and then calls Thread_Start( ) without disabling thread-dispatching.
Diffstat (limited to 'cpukit/posix')
| -rw-r--r-- | cpukit/posix/src/pthreadcreate.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/cpukit/posix/src/pthreadcreate.c b/cpukit/posix/src/pthreadcreate.c index 64270e94d9..b780eccfe9 100644 --- a/cpukit/posix/src/pthreadcreate.c +++ b/cpukit/posix/src/pthreadcreate.c @@ -196,6 +196,8 @@ int pthread_create( api->schedpolicy = schedpolicy; api->schedparam = schedparam; + _Thread_Disable_dispatch(); + /* * POSIX threads are allocated and started in one operation. */ @@ -216,6 +218,7 @@ int pthread_create( * thread while we are creating it. */ if ( !status ) { + _Thread_Enable_dispatch(); _POSIX_Threads_Free( the_thread ); _RTEMS_Unlock_allocator(); return EINVAL; @@ -229,6 +232,8 @@ int pthread_create( ); } + _Thread_Enable_dispatch(); + /* * Return the id and indicate we successfully created the thread */ |