mirror of
git://sourceware.org/git/glibc.git
synced 2025-03-25 13:51:04 +08:00
nptl: Fix tst-cancel7 and tst-cancelx7 pidfile race
The check for waiting for the pidfile to be created looks wrong. At the point when ACCESS is run the pid file will always be created and accessible as it is created during DO_PREPARE. This means that thread cancellation may be performed before the pid is written to the pidfile. This was found to be flaky when testing on my OpenRISC platform. Fix this by using the semaphore to wait for pidfile pid write completion. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
parent
5118dcac68
commit
06acd6d1d6
@ -115,16 +115,13 @@ do_test (void)
|
||||
{
|
||||
pthread_t th = xpthread_create (NULL, tf, NULL);
|
||||
|
||||
do
|
||||
nanosleep (&(struct timespec) { .tv_sec = 0, .tv_nsec = 100000000 }, NULL);
|
||||
while (access (pidfilename, R_OK) != 0);
|
||||
/* Wait to cancel until after the pid is written. */
|
||||
if (sem_wait (sem) != 0)
|
||||
FAIL_EXIT1 ("sem_wait: %m");
|
||||
|
||||
xpthread_cancel (th);
|
||||
void *r = xpthread_join (th);
|
||||
|
||||
if (sem_wait (sem) != 0)
|
||||
FAIL_EXIT1 ("sem_wait: %m");
|
||||
|
||||
FILE *f = xfopen (pidfilename, "r+");
|
||||
|
||||
long long ll;
|
||||
|
Loading…
x
Reference in New Issue
Block a user