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authorJia Lina <jialina01@baidu.com>2018-10-26 16:36:20 +0800
committerDr. David Alan Gilbert <dgilbert@redhat.com>2018-10-31 09:38:59 +0000
commit3d63da16fbcd05405efd5946000cdb45474a9bad (patch)
treeeae180d6f698df45e85d62b99c1a41cc2f87bd2a /migration/migration.h
parentea3b23e5ffc4b937958ba54b006a2a5e2e664f12 (diff)
migration: avoid segmentfault when take a snapshot of a VM which being migrated
During an active background migration, snapshot will trigger a segmentfault. As snapshot clears the "current_migration" struct and updates "to_dst_file" before it finds out that there is a migration task, Migration accesses the null pointer in "current_migration" struct and qemu crashes eventually. Signed-off-by: Jia Lina <jialina01@baidu.com> Signed-off-by: Chai Wen <chaiwen@baidu.com> Signed-off-by: Zhang Yu <zhangyu31@baidu.com> Message-Id: <20181026083620.10172-1-jialina01@baidu.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/migration.h')
-rw-r--r--migration/migration.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h
index f7813f8261..e413d4d8b6 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -241,6 +241,8 @@ void migrate_fd_error(MigrationState *s, const Error *error);
void migrate_fd_connect(MigrationState *s, Error *error_in);
+bool migration_is_setup_or_active(int state);
+
void migrate_init(MigrationState *s);
bool migration_is_blocked(Error **errp);
/* True if outgoing migration has entered postcopy phase */