Attachment 159623 Details for Bug 248671 – modified version of reproducer referred to above

modified version of reproducer referred to above

ths.c (text/plain), 1.05 KB, created by Ernie Petrides on 2007-07-19 23:41:59 UTC

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Creator: Ernie Petrides

Created: 2007-07-19 23:41:59 UTC

Size: 1.05 KB

patch

obsolete

>#include <stdio.h>
>#include <pthread.h>
>#include <errno.h>
>
>#define NUM_THREADS 100
>#define ITERS 1000
>
>pthread_t threads[NUM_THREADS];
>int setuid_result[NUM_THREADS];
>
>void * thread_func(void *arg)
>{
>	*(int *)arg = (setuid(500) < 0) + 1;
>	pthread_exit((void *)0);
>}
>
>int main()
>{
>	int i, j, ret, count;
>
>	for (j = 0; j < ITERS; j++) {
>		for (i = 0; i < NUM_THREADS; i++) {
>			pthread_create(&threads[i], NULL, thread_func,
>				(void *)&setuid_result[i]);
>		}
>	
>		printf("launched threads, iter %d\n", j);
>		
>		do {
>			count = 0;
>			for (i = 0; i < NUM_THREADS; i++) {
>				if (threads[i] == -1)
>					continue;
>				ret = pthread_kill(threads[i], 0);
>				if (ret == 0) {
>fprintf(stderr, "pthread_kill succeeded for thread %d, sr %d\n",
>i, setuid_result[i]);
>					count++;
>				} else {
>fprintf(stderr, "pthread_kill returned %d for thread %d, sr %d\n",
>ret, i, setuid_result[i]);
>					pthread_join(threads[i], NULL);
>					threads[i] = -1;
>				}
>			}
>			sleep(1);
>fprintf(stderr, "returned from sleep\n");
>		} while (count > 0);
>		
>		printf("joined threads\n");
>	}
>
>	exit(0);
>}

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Attachments on bug 248671: 159495 | 159623