From: Li Liang <liangx.z...@intel.com>
This bug was introduced in the commit 9005b2a7589540a3733b3abdcfbccfe7746cd1a1,
it will cause deadlock when create a vm with the parameter "-monitor pty" and
then try to read from /dev/pts/x.
Signed-off-by: Li Liang <liangx.z...@intel.com>
---
qemu-char.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/qemu-char.c b/qemu-char.c
index 55e372c..55cdded 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -1103,9 +1103,11 @@ static gboolean pty_chr_timer(gpointer opaque)
s->timer_tag = 0;
if (!s->connected) {
/* Next poll ... */
+ qemu_mutex_unlock(&chr->chr_write_lock);
pty_chr_update_read_handler_locked(chr);
+ } else {
+ qemu_mutex_unlock(&chr->chr_write_lock);
}
- qemu_mutex_unlock(&chr->chr_write_lock);
return FALSE;
}
--
1.9.1
