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authorZhang Chen <chen.zhang@intel.com>2019-03-30 06:29:51 +0800
committerDr. David Alan Gilbert <dgilbert@redhat.com>2019-04-05 15:29:48 +0100
commitc6e5bafb6ff330e972eae7b823321143ab3e29e2 (patch)
tree0a1fc0cb27d6123a8bdb7cf76dab2b58a9acf8a7 /migration/ram.c
parent10546e09e174e0bb185b66a4c397aa845efcd36e (diff)
migration/ram.c: Fix codes conflict about bitmap_mutex
I found upstream codes conflict with COLO and lead to crash, and I located to this patch: commit 386a907b37a9321bc5d699bc37104d6ffba1b34d Author: Wei Wang <wei.w.wang@intel.com> Date: Tue Dec 11 16:24:49 2018 +0800 migration: use bitmap_mutex in migration_bitmap_clear_dirty My colleague Wei's patch add bitmap_mutex in migration_bitmap_clear_dirty, but COLO didn't initialize the bitmap_mutex. So we always get an error when COLO start up. like that: qemu-system-x86_64: util/qemu-thread-posix.c:64: qemu_mutex_lock_impl: Assertion `mutex->initialized' failed. This patch add the bitmap_mutex initialize and destroy in COLO lifecycle. Signed-off-by: Zhang Chen <chen.zhang@intel.com> Message-Id: <20190329222951.28945-1-chen.zhang@intel.com> Reviewed-by: Wei Wang <wei.w.wang@intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/ram.c')
-rw-r--r--migration/ram.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/ram.c b/migration/ram.c
index d7f8fe45a8..f68beeeeff 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -3918,6 +3918,7 @@ int colo_init_ram_cache(void)
}
ram_state = g_new0(RAMState, 1);
ram_state->migration_dirty_pages = 0;
+ qemu_mutex_init(&ram_state->bitmap_mutex);
memory_global_dirty_log_start();
return 0;
@@ -3956,6 +3957,7 @@ void colo_release_ram_cache(void)
}
rcu_read_unlock();
+ qemu_mutex_destroy(&ram_state->bitmap_mutex);
g_free(ram_state);
ram_state = NULL;
}