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Red Hat Bugzilla – Attachment 522617 Details for
Bug 737387
strange pthread/fork deadlock
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test case demonstrating the issue
test.c (text/x-csrc), 810 bytes, created by
Allison Karlitskaya
on 2011-09-11 17:56:01 UTC
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Description:
test case demonstrating the issue
Filename:
MIME Type:
Creator:
Allison Karlitskaya
Created:
2011-09-11 17:56:01 UTC
Size:
810 bytes
patch
obsolete
>#include <sys/syscall.h> >#include <sys/wait.h> >#include <stdlib.h> >#include <unistd.h> >#include <pthread.h> >#include <stdbool.h> >#include <stdio.h> > >#define N_THREADS 100 > >static void * >worker (void *arg) >{ > pid_t pid; > >#ifdef FORK_DIRECTLY > pid = syscall (SYS_fork); >#else > pid = fork (); >#endif > > if (pid == -1) > abort (); > > if (pid == 0) > { > char *args[] = { "/bin/true", NULL }; > execv ("/bin/true", args); > abort (); > } > > waitpid (pid, NULL, 0); > > return NULL; >} > >int >main (void) >{ > pthread_t threads[N_THREADS]; > int i; > > while (true) > { > for (i = 0; i < N_THREADS; i++) > pthread_create (&threads[i], NULL, worker, NULL); > > for (i = 0; i < N_THREADS; i++) > pthread_join (threads[i], NULL); > > putchar ('.'); > fflush (stdout); > } >}
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bug 737387
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