713f762a31
When we 'migrate_cancel' a multifd migration, live_migration thread may go into endless loop in multifd_send_pages functions. Reproduce steps: (qemu) migrate_set_capability multifd on (qemu) migrate -d url (qemu) [wait a while] (qemu) migrate_cancel Then may get live_migration 100% cpu usage in following stack: pthread_mutex_lock qemu_mutex_lock_impl multifd_send_pages multifd_queue_page ram_save_multifd_page ram_save_target_page ram_save_host_page ram_find_and_save_block ram_find_and_save_block ram_save_iterate qemu_savevm_state_iterate migration_iteration_run migration_thread qemu_thread_start start_thread clone Signed-off-by: Ivan Ren <ivanren@tencent.com> Message-Id: <1561468699-9819-2-git-send-email-ivanren@tencent.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> |
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| .. | ||
| block-dirty-bitmap.c | ||
| block.c | ||
| block.h | ||
| channel.c | ||
| channel.h | ||
| colo-failover.c | ||
| colo.c | ||
| exec.c | ||
| exec.h | ||
| fd.c | ||
| fd.h | ||
| global_state.c | ||
| Makefile.objs | ||
| migration.c | ||
| migration.h | ||
| page_cache.c | ||
| page_cache.h | ||
| postcopy-ram.c | ||
| postcopy-ram.h | ||
| qemu-file-channel.c | ||
| qemu-file-channel.h | ||
| qemu-file.c | ||
| qemu-file.h | ||
| qjson.c | ||
| qjson.h | ||
| ram.c | ||
| ram.h | ||
| rdma.c | ||
| rdma.h | ||
| savevm.c | ||
| savevm.h | ||
| socket.c | ||
| socket.h | ||
| tls.c | ||
| tls.h | ||
| trace-events | ||
| vmstate-types.c | ||
| vmstate.c | ||
| xbzrle.c | ||
| xbzrle.h | ||