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Fix signal handling when io-thread is disabled 

Changes since v1:
- take pthread_sigmask() out of the ifdef as it is now common
to both parts.

This fix effectively blocks, in the main thread, the signals handled
by signalfd or the compatibility signal thread.

This way, such signals are received synchronously in the main thread
through sigfd_handler() instead of triggering the signal handler
directly, asynchronously.

Signed-off-by: Alexandre Raymond <cerbere@gmail.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Alexandre Raymond 2011-06-14 10:05:36 -04:00 committed by Blue Swirl
parent 107a47cc2d
commit 5664aed99a
1 changed files with 1 additions and 1 deletions
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2
cpus.c
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@ -401,7 +401,6 @@ static int qemu_signal_init(void)
sigaddset(&set, SIGALRM);
sigaddset(&set, SIG_IPI);
sigaddset(&set, SIGBUS);
pthread_sigmask(SIG_BLOCK, &set, NULL);
#else
sigemptyset(&set);
sigaddset(&set, SIGBUS);
@ -414,6 +413,7 @@ static int qemu_signal_init(void)
sigaddset(&set, SIGALRM);
}
#endif
pthread_sigmask(SIG_BLOCK, &set, NULL);
sigfd = qemu_signalfd(&set);
if (sigfd == -1) {