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[PATCH v2 2/7] Fixed qemu crash when guest power off in COLO mode
From: |
Rao, Lei |
Subject: |
[PATCH v2 2/7] Fixed qemu crash when guest power off in COLO mode |
Date: |
Mon, 1 Nov 2021 15:57:00 +0800 |
From: "Rao, Lei" <lei.rao@intel.com>
This patch fixes the following:
qemu-system-x86_64: invalid runstate transition: 'shutdown' -> 'running'
Aborted (core dumped)
The gdb bt as following:
0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
1 0x00007faa3d613859 in __GI_abort () at abort.c:79
2 0x000055c5a21268fd in runstate_set (new_state=RUN_STATE_RUNNING) at vl.c:723
3 0x000055c5a1f8cae4 in vm_prepare_start () at
/home/workspace/colo-qemu/cpus.c:2206
4 0x000055c5a1f8cb1b in vm_start () at /home/workspace/colo-qemu/cpus.c:2213
5 0x000055c5a2332bba in migration_iteration_finish (s=0x55c5a4658810) at
migration/migration.c:3376
6 0x000055c5a2332f3b in migration_thread (opaque=0x55c5a4658810) at
migration/migration.c:3527
7 0x000055c5a251d68a in qemu_thread_start (args=0x55c5a5491a70) at
util/qemu-thread-posix.c:519
8 0x00007faa3d7e9609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
9 0x00007faa3d710293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Signed-off-by: Lei Rao <lei.rao@intel.com>
---
migration/migration.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/migration/migration.c b/migration/migration.c
index 9172686b89..e5b38a492f 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3616,7 +3616,9 @@ static void migration_iteration_finish(MigrationState *s)
case MIGRATION_STATUS_CANCELLED:
case MIGRATION_STATUS_CANCELLING:
if (s->vm_was_running) {
- vm_start();
+ if (!runstate_check(RUN_STATE_SHUTDOWN)) {
+ vm_start();
+ }
} else {
if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {
runstate_set(RUN_STATE_POSTMIGRATE);
--
2.30.2
- [PATCH v2 0/7] Fixed some bugs and optimized some codes for COLO, Rao, Lei, 2021/11/01
- [PATCH v2 1/7] Some minor optimizations for COLO, Rao, Lei, 2021/11/01
- [PATCH v2 2/7] Fixed qemu crash when guest power off in COLO mode,
Rao, Lei <=
- [PATCH v2 4/7] colo: fixed 'Segmentation fault' when the simplex mode PVM poweroff, Rao, Lei, 2021/11/01
- [PATCH v2 3/7] Fixed SVM hang when do failover before PVM crash, Rao, Lei, 2021/11/01
- [PATCH v2 5/7] Removed the qemu_fclose() in colo_process_incoming_thread, Rao, Lei, 2021/11/01
- [PATCH v2 6/7] Changed the last-mode to none of first start COLO, Rao, Lei, 2021/11/01
- [PATCH v2 7/7] Optimized the function of fill_connection_key., Rao, Lei, 2021/11/01