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block SIGCHLD in vcpu thread(s)
author
Marcelo Tosatti
<mtosatti@redhat.com>
Wed, 17 Feb 2010 22:14:40 +0000
(20:14 -0200)
committer
Avi Kivity
<avi@redhat.com>
Mon, 22 Feb 2010 08:58:33 +0000
(10:58 +0200)
Otherwise a vcpu thread can run the sigchild handler causing
waitpid() from iothread to fail.
Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
vl.c
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diff --git
a/vl.c
b/vl.c
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1957018
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3bc618d
100644
(file)
--- a/
vl.c
+++ b/
vl.c
@@
-3515,6
+3515,7
@@
static void block_io_signals(void)
sigaddset(&set, SIGUSR2);
sigaddset(&set, SIGIO);
sigaddset(&set, SIGALRM);
+ sigaddset(&set, SIGCHLD);
pthread_sigmask(SIG_BLOCK, &set, NULL);
sigemptyset(&set);