Commit 99b5beba authored by Jan Kiszka's avatar Jan Kiszka Committed by Kevin Wolf

coroutine: Fix setup of sigaltstack coroutines

Use pthread_kill instead of process-wide kill to invoke the signal
handler used for stack switching. This may fix spurious lock-ups with
this backend, easily triggerable by extending the time window between
kill and sigsuspend.
Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 77f4c9a6
......@@ -226,7 +226,7 @@ static Coroutine *coroutine_new(void)
* called.
*/
coTS->tr_called = 0;
kill(getpid(), SIGUSR2);
pthread_kill(pthread_self(), SIGUSR2);
sigfillset(&sigs);
sigdelset(&sigs, SIGUSR2);
while (!coTS->tr_called) {
......
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