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[Qemu-stable] [PULL 08/24] vl: change runstate only if new state is diff
From: |
Paolo Bonzini |
Subject: |
[Qemu-stable] [PULL 08/24] vl: change runstate only if new state is different from current state |
Date: |
Mon, 23 May 2016 17:09:43 +0200 |
From: Li Zhijian <address@hidden>
Previously, qemu will abort at following scenario:
(qemu) stop
(qemu) system_reset
(qemu) system_reset
(qemu) 2016-04-13T20:54:38.979158Z qemu-system-x86_64: invalid runstate
transition: 'prelaunch' -> 'prelaunch'
Signed-off-by: Li Zhijian <address@hidden>
Acked-by: Paolo Bonzini <address@hidden>
Message-Id: <address@hidden>
Cc: address@hidden
Signed-off-by: Paolo Bonzini <address@hidden>
---
vl.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/vl.c b/vl.c
index b1562d8..2569dbb 100644
--- a/vl.c
+++ b/vl.c
@@ -690,6 +690,10 @@ void runstate_set(RunState new_state)
{
assert(new_state < RUN_STATE__MAX);
+ if (current_run_state == new_state) {
+ return;
+ }
+
if (!runstate_valid_transitions[current_run_state][new_state]) {
error_report("invalid runstate transition: '%s' -> '%s'",
RunState_lookup[current_run_state],
--
1.8.3.1
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