1 /* 2 * Reproducer for bug #323905. See also 3 * http://bugs.kde.org/show_bug.cgi?id=323905. 4 */ 5 6 #include <climits> /* PTHREAD_STACK_MIN */ 7 #include <cstdio> /* fprintf() */ 8 #include <fcntl.h> /* O_RDONLY */ 9 #include <pthread.h> 10 #include <unistd.h> /* close() */ 11 12 /* Happens with two threads also */ 13 #define THREAD_COUNT 256 14 15 void* thread(void*) 16 { 17 int fd; 18 19 /* Happens with any file, not just /dev/null */ 20 fd = open("/dev/null", O_RDONLY); 21 if (fd >= 0) 22 close(fd); 23 else 24 fprintf(stderr, "Failed to open /dev/null\n"); 25 return 0; 26 } 27 28 int main() 29 { 30 int i, r; 31 pthread_attr_t attr; 32 pthread_t threads[THREAD_COUNT]; 33 34 pthread_attr_init(&attr); 35 pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); 36 for (i = 0; i < THREAD_COUNT; ++i) { 37 r = pthread_create(&threads[i], &attr, thread, 0); 38 if (r != 0) { 39 fprintf(stderr, "Failed to create thread %d\n", i); 40 return 1; 41 } 42 } 43 pthread_attr_destroy(&attr); 44 for (i = 0; i < THREAD_COUNT; ++i) { 45 r = pthread_join(threads[i], 0); 46 if (r != 0) { 47 fprintf(stderr, "Failed to join thread %d\n", i); 48 return 1; 49 } 50 } 51 fprintf(stderr, "Done.\n"); 52 return 0; 53 } 54
