qemu/migration/trace-events
Peter Xu 60bb3c5871 migration: Postcopy recover with preempt enabled
To allow postcopy recovery, the ram fast load (preempt-only) dest QEMU thread
needs similar handling on fault tolerance.  When ram_load_postcopy() fails,
instead of stopping the thread it halts with a semaphore, preparing to be
kicked again when recovery is detected.

A mutex is introduced to make sure there's no concurrent operation upon the
socket.  To make it simple, the fast ram load thread will take the mutex during
its whole procedure, and only release it if it's paused.  The fast-path socket
will be properly released by the main loading thread safely when there's
network failures during postcopy with that mutex held.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185506.27257-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-07-20 12:15:08 +01:00

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# See docs/devel/tracing.rst for syntax documentation.
# savevm.c
qemu_loadvm_state_section(unsigned int section_type) "%d"
qemu_loadvm_state_section_command(int ret) "%d"
qemu_loadvm_state_section_partend(uint32_t section_id) "%u"
qemu_loadvm_state_post_main(int ret) "%d"
qemu_loadvm_state_section_startfull(uint32_t section_id, const char *idstr, uint32_t instance_id, uint32_t version_id) "%u(%s) %u %u"
qemu_savevm_send_packaged(void) ""
loadvm_state_setup(void) ""
loadvm_state_cleanup(void) ""
loadvm_handle_cmd_packaged(unsigned int length) "%u"
loadvm_handle_cmd_packaged_main(int ret) "%d"
loadvm_handle_cmd_packaged_received(int ret) "%d"
loadvm_handle_recv_bitmap(char *s) "%s"
loadvm_postcopy_handle_advise(void) ""
loadvm_postcopy_handle_listen(const char *str) "%s"
loadvm_postcopy_handle_run(void) ""
loadvm_postcopy_handle_run_bh(const char *str) "%s"
loadvm_postcopy_handle_resume(void) ""
loadvm_postcopy_ram_handle_discard(void) ""
loadvm_postcopy_ram_handle_discard_end(void) ""
loadvm_postcopy_ram_handle_discard_header(const char *ramid, uint16_t len) "%s: %ud"
loadvm_process_command(const char *s, uint16_t len) "com=%s len=%d"
loadvm_process_command_ping(uint32_t val) "0x%x"
postcopy_ram_listen_thread_exit(void) ""
postcopy_ram_listen_thread_start(void) ""
qemu_savevm_send_postcopy_advise(void) ""
qemu_savevm_send_postcopy_ram_discard(const char *id, uint16_t len) "%s: %ud"
savevm_command_send(uint16_t command, uint16_t len) "com=0x%x len=%d"
savevm_section_start(const char *id, unsigned int section_id) "%s, section_id %u"
savevm_section_end(const char *id, unsigned int section_id, int ret) "%s, section_id %u -> %d"
savevm_section_skip(const char *id, unsigned int section_id) "%s, section_id %u"
savevm_send_open_return_path(void) ""
savevm_send_ping(uint32_t val) "0x%x"
savevm_send_postcopy_listen(void) ""
savevm_send_postcopy_run(void) ""
savevm_send_postcopy_resume(void) ""
savevm_send_colo_enable(void) ""
savevm_send_recv_bitmap(char *name) "%s"
savevm_state_setup(void) ""
savevm_state_resume_prepare(void) ""
savevm_state_header(void) ""
savevm_state_iterate(void) ""
savevm_state_cleanup(void) ""
savevm_state_complete_precopy(void) ""
vmstate_save(const char *idstr, const char *vmsd_name) "%s, %s"
vmstate_load(const char *idstr, const char *vmsd_name) "%s, %s"
postcopy_pause_incoming(void) ""
postcopy_pause_incoming_continued(void) ""
postcopy_page_req_sync(void *host_addr) "sync page req %p"
# vmstate.c
vmstate_load_field_error(const char *field, int ret) "field \"%s\" load failed, ret = %d"
vmstate_load_state(const char *name, int version_id) "%s v%d"
vmstate_load_state_end(const char *name, const char *reason, int val) "%s %s/%d"
vmstate_load_state_field(const char *name, const char *field) "%s:%s"
vmstate_n_elems(const char *name, int n_elems) "%s: %d"
vmstate_subsection_load(const char *parent) "%s"
vmstate_subsection_load_bad(const char *parent, const char *sub, const char *sub2) "%s: %s/%s"
vmstate_subsection_load_good(const char *parent) "%s"
vmstate_save_state_pre_save_res(const char *name, int res) "%s/%d"
vmstate_save_state_loop(const char *name, const char *field, int n_elems) "%s/%s[%d]"
vmstate_save_state_top(const char *idstr) "%s"
vmstate_subsection_save_loop(const char *name, const char *sub) "%s/%s"
vmstate_subsection_save_top(const char *idstr) "%s"
# vmstate-types.c
get_qtailq(const char *name, int version_id) "%s v%d"
get_qtailq_end(const char *name, const char *reason, int val) "%s %s/%d"
put_qtailq(const char *name, int version_id) "%s v%d"
put_qtailq_end(const char *name, const char *reason) "%s %s"
get_gtree(const char *field_name, const char *key_vmsd_name, const char *val_vmsd_name, uint32_t nnodes) "%s(%s/%s) nnodes=%d"
get_gtree_end(const char *field_name, const char *key_vmsd_name, const char *val_vmsd_name, int ret) "%s(%s/%s) %d"
put_gtree(const char *field_name, const char *key_vmsd_name, const char *val_vmsd_name, uint32_t nnodes) "%s(%s/%s) nnodes=%d"
put_gtree_end(const char *field_name, const char *key_vmsd_name, const char *val_vmsd_name, int ret) "%s(%s/%s) %d"
get_qlist(const char *field_name, const char *vmsd_name, int version_id) "%s(%s v%d)"
get_qlist_end(const char *field_name, const char *vmsd_name) "%s(%s)"
put_qlist(const char *field_name, const char *vmsd_name, int version_id) "%s(%s v%d)"
put_qlist_end(const char *field_name, const char *vmsd_name) "%s(%s)"
# qemu-file.c
qemu_file_fclose(void) ""
# ram.c
migration_bitmap_sync_start(void) ""
migration_bitmap_sync_end(uint64_t dirty_pages) "dirty_pages %" PRIu64
migration_bitmap_clear_dirty(char *str, uint64_t start, uint64_t size, unsigned long page) "rb %s start 0x%"PRIx64" size 0x%"PRIx64" page 0x%lx"
migration_throttle(void) ""
ram_discard_range(const char *rbname, uint64_t start, size_t len) "%s: start: %" PRIx64 " %zx"
ram_load_loop(const char *rbname, uint64_t addr, int flags, void *host) "%s: addr: 0x%" PRIx64 " flags: 0x%x host: %p"
ram_load_postcopy_loop(int channel, uint64_t addr, int flags) "chan=%d addr=0x%" PRIx64 " flags=0x%x"
ram_postcopy_send_discard_bitmap(void) ""
ram_save_page(const char *rbname, uint64_t offset, void *host) "%s: offset: 0x%" PRIx64 " host: %p"
ram_save_queue_pages(const char *rbname, size_t start, size_t len) "%s: start: 0x%zx len: 0x%zx"
ram_dirty_bitmap_request(char *str) "%s"
ram_dirty_bitmap_reload_begin(char *str) "%s"
ram_dirty_bitmap_reload_complete(char *str) "%s"
ram_dirty_bitmap_sync_start(void) ""
ram_dirty_bitmap_sync_wait(void) ""
ram_dirty_bitmap_sync_complete(void) ""
ram_state_resume_prepare(uint64_t v) "%" PRId64
colo_flush_ram_cache_begin(uint64_t dirty_pages) "dirty_pages %" PRIu64
colo_flush_ram_cache_end(void) ""
save_xbzrle_page_skipping(void) ""
save_xbzrle_page_overflow(void) ""
ram_save_iterate_big_wait(uint64_t milliconds, int iterations) "big wait: %" PRIu64 " milliseconds, %d iterations"
ram_load_complete(int ret, uint64_t seq_iter) "exit_code %d seq iteration %" PRIu64
ram_write_tracking_ramblock_start(const char *block_id, size_t page_size, void *addr, size_t length) "%s: page_size: %zu addr: %p length: %zu"
ram_write_tracking_ramblock_stop(const char *block_id, size_t page_size, void *addr, size_t length) "%s: page_size: %zu addr: %p length: %zu"
unqueue_page(char *block, uint64_t offset, bool dirty) "ramblock '%s' offset 0x%"PRIx64" dirty %d"
postcopy_preempt_triggered(char *str, unsigned long page) "during sending ramblock %s offset 0x%lx"
postcopy_preempt_restored(char *str, unsigned long page) "ramblock %s offset 0x%lx"
postcopy_preempt_hit(char *str, uint64_t offset) "ramblock %s offset 0x%"PRIx64
postcopy_preempt_send_host_page(char *str, uint64_t offset) "ramblock %s offset 0x%"PRIx64
postcopy_preempt_switch_channel(int channel) "%d"
postcopy_preempt_reset_channel(void) ""
# multifd.c
multifd_new_send_channel_async(uint8_t id) "channel %u"
multifd_recv(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags, uint32_t next_packet_size) "channel %u packet_num %" PRIu64 " pages %u flags 0x%x next packet size %u"
multifd_recv_new_channel(uint8_t id) "channel %u"
multifd_recv_sync_main(long packet_num) "packet num %ld"
multifd_recv_sync_main_signal(uint8_t id) "channel %u"
multifd_recv_sync_main_wait(uint8_t id) "channel %u"
multifd_recv_terminate_threads(bool error) "error %d"
multifd_recv_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %u packets %" PRIu64 " pages %" PRIu64
multifd_recv_thread_start(uint8_t id) "%u"
multifd_send(uint8_t id, uint64_t packet_num, uint32_t normal, uint32_t flags, uint32_t next_packet_size) "channel %u packet_num %" PRIu64 " normal pages %u flags 0x%x next packet size %u"
multifd_send_error(uint8_t id) "channel %u"
multifd_send_sync_main(long packet_num) "packet num %ld"
multifd_send_sync_main_signal(uint8_t id) "channel %u"
multifd_send_sync_main_wait(uint8_t id) "channel %u"
multifd_send_terminate_threads(bool error) "error %d"
multifd_send_thread_end(uint8_t id, uint64_t packets, uint64_t normal_pages) "channel %u packets %" PRIu64 " normal pages %" PRIu64
multifd_send_thread_start(uint8_t id) "%u"
multifd_tls_outgoing_handshake_start(void *ioc, void *tioc, const char *hostname) "ioc=%p tioc=%p hostname=%s"
multifd_tls_outgoing_handshake_error(void *ioc, const char *err) "ioc=%p err=%s"
multifd_tls_outgoing_handshake_complete(void *ioc) "ioc=%p"
multifd_set_outgoing_channel(void *ioc, const char *ioctype, const char *hostname, void *err) "ioc=%p ioctype=%s hostname=%s err=%p"
# migration.c
await_return_path_close_on_source_close(void) ""
await_return_path_close_on_source_joining(void) ""
migrate_set_state(const char *new_state) "new state %s"
migrate_fd_cleanup(void) ""
migrate_fd_error(const char *error_desc) "error=%s"
migrate_fd_cancel(void) ""
migrate_handle_rp_req_pages(const char *rbname, size_t start, size_t len) "in %s at 0x%zx len 0x%zx"
migrate_pending(uint64_t size, uint64_t max, uint64_t pre, uint64_t compat, uint64_t post) "pending size %" PRIu64 " max %" PRIu64 " (pre = %" PRIu64 " compat=%" PRIu64 " post=%" PRIu64 ")"
migrate_send_rp_message(int msg_type, uint16_t len) "%d: len %d"
migrate_send_rp_recv_bitmap(char *name, int64_t size) "block '%s' size 0x%"PRIi64
migration_completion_file_err(void) ""
migration_completion_vm_stop(int ret) "ret %d"
migration_completion_postcopy_end(void) ""
migration_completion_postcopy_end_after_complete(void) ""
migration_rate_limit_pre(int ms) "%d ms"
migration_rate_limit_post(int urgent) "urgent: %d"
migration_return_path_end_before(void) ""
migration_return_path_end_after(int rp_error) "%d"
migration_thread_after_loop(void) ""
migration_thread_file_err(void) ""
migration_thread_setup_complete(void) ""
open_return_path_on_source(void) ""
open_return_path_on_source_continue(void) ""
postcopy_start(void) ""
postcopy_pause_return_path(void) ""
postcopy_pause_return_path_continued(void) ""
postcopy_pause_continued(void) ""
postcopy_start_set_run(void) ""
postcopy_page_req_add(void *addr, int count) "new page req %p total %d"
source_return_path_thread_bad_end(void) ""
source_return_path_thread_end(void) ""
source_return_path_thread_entry(void) ""
source_return_path_thread_loop_top(void) ""
source_return_path_thread_pong(uint32_t val) "0x%x"
source_return_path_thread_shut(uint32_t val) "0x%x"
source_return_path_thread_resume_ack(uint32_t v) "%"PRIu32
migration_thread_low_pending(uint64_t pending) "%" PRIu64
migrate_transferred(uint64_t tranferred, uint64_t time_spent, uint64_t bandwidth, uint64_t size) "transferred %" PRIu64 " time_spent %" PRIu64 " bandwidth %" PRIu64 " max_size %" PRId64
process_incoming_migration_co_end(int ret, int ps) "ret=%d postcopy-state=%d"
process_incoming_migration_co_postcopy_end_main(void) ""
postcopy_preempt_enabled(bool value) "%d"
# channel.c
migration_set_incoming_channel(void *ioc, const char *ioctype) "ioc=%p ioctype=%s"
migration_set_outgoing_channel(void *ioc, const char *ioctype, const char *hostname, void *err) "ioc=%p ioctype=%s hostname=%s err=%p"
# global_state.c
migrate_state_too_big(void) ""
migrate_global_state_post_load(const char *state) "loaded state: %s"
migrate_global_state_pre_save(const char *state) "saved state: %s"
# rdma.c
qemu_rdma_accept_incoming_migration(void) ""
qemu_rdma_accept_incoming_migration_accepted(void) ""
qemu_rdma_accept_pin_state(bool pin) "%d"
qemu_rdma_accept_pin_verbsc(void *verbs) "Verbs context after listen: %p"
qemu_rdma_block_for_wrid_miss(const char *wcompstr, int wcomp, const char *gcompstr, uint64_t req) "A Wanted wrid %s (%d) but got %s (%" PRIu64 ")"
qemu_rdma_cleanup_disconnect(void) ""
qemu_rdma_close(void) ""
qemu_rdma_connect_pin_all_requested(void) ""
qemu_rdma_connect_pin_all_outcome(bool pin) "%d"
qemu_rdma_dest_init_trying(const char *host, const char *ip) "%s => %s"
qemu_rdma_dump_gid(const char *who, const char *src, const char *dst) "%s Source GID: %s, Dest GID: %s"
qemu_rdma_exchange_get_response_start(const char *desc) "CONTROL: %s receiving..."
qemu_rdma_exchange_get_response_none(const char *desc, int type) "Surprise: got %s (%d)"
qemu_rdma_exchange_send_issue_callback(void) ""
qemu_rdma_exchange_send_waiting(const char *desc) "Waiting for response %s"
qemu_rdma_exchange_send_received(const char *desc) "Response %s received."
qemu_rdma_fill(size_t control_len, size_t size) "RDMA %zd of %zd bytes already in buffer"
qemu_rdma_init_ram_blocks(int blocks) "Allocated %d local ram block structures"
qemu_rdma_poll_recv(const char *compstr, int64_t comp, int64_t id, int sent) "completion %s #%" PRId64 " received (%" PRId64 ") left %d"
qemu_rdma_poll_write(const char *compstr, int64_t comp, int left, uint64_t block, uint64_t chunk, void *local, void *remote) "completions %s (%" PRId64 ") left %d, block %" PRIu64 ", chunk: %" PRIu64 " %p %p"
qemu_rdma_poll_other(const char *compstr, int64_t comp, int left) "other completion %s (%" PRId64 ") received left %d"
qemu_rdma_post_send_control(const char *desc) "CONTROL: sending %s.."
qemu_rdma_register_and_get_keys(uint64_t len, void *start) "Registering %" PRIu64 " bytes @ %p"
qemu_rdma_register_odp_mr(const char *name) "Try to register On-Demand Paging memory region: %s"
qemu_rdma_advise_mr(const char *name, uint32_t len, uint64_t addr, const char *res) "Try to advise block %s prefetch at %" PRIu32 "@0x%" PRIx64 ": %s"
qemu_rdma_registration_handle_compress(int64_t length, int index, int64_t offset) "Zapping zero chunk: %" PRId64 " bytes, index %d, offset %" PRId64
qemu_rdma_registration_handle_finished(void) ""
qemu_rdma_registration_handle_ram_blocks(void) ""
qemu_rdma_registration_handle_ram_blocks_loop(const char *name, uint64_t offset, uint64_t length, void *local_host_addr, unsigned int src_index) "%s: @0x%" PRIx64 "/%" PRIu64 " host:@%p src_index: %u"
qemu_rdma_registration_handle_register(int requests) "%d requests"
qemu_rdma_registration_handle_register_loop(int req, int index, uint64_t addr, uint64_t chunks) "Registration request (%d): index %d, current_addr %" PRIu64 " chunks: %" PRIu64
qemu_rdma_registration_handle_register_rkey(int rkey) "0x%x"
qemu_rdma_registration_handle_unregister(int requests) "%d requests"
qemu_rdma_registration_handle_unregister_loop(int count, int index, uint64_t chunk) "Unregistration request (%d): index %d, chunk %" PRIu64
qemu_rdma_registration_handle_unregister_success(uint64_t chunk) "%" PRIu64
qemu_rdma_registration_handle_wait(void) ""
qemu_rdma_registration_start(uint64_t flags) "%" PRIu64
qemu_rdma_registration_stop(uint64_t flags) "%" PRIu64
qemu_rdma_registration_stop_ram(void) ""
qemu_rdma_resolve_host_trying(const char *host, const char *ip) "Trying %s => %s"
qemu_rdma_signal_unregister_append(uint64_t chunk, int pos) "Appending unregister chunk %" PRIu64 " at position %d"
qemu_rdma_signal_unregister_already(uint64_t chunk) "Unregister chunk %" PRIu64 " already in queue"
qemu_rdma_unregister_waiting_inflight(uint64_t chunk) "Cannot unregister inflight chunk: %" PRIu64
qemu_rdma_unregister_waiting_proc(uint64_t chunk, int pos) "Processing unregister for chunk: %" PRIu64 " at position %d"
qemu_rdma_unregister_waiting_send(uint64_t chunk) "Sending unregister for chunk: %" PRIu64
qemu_rdma_unregister_waiting_complete(uint64_t chunk) "Unregister for chunk: %" PRIu64 " complete."
qemu_rdma_write_flush(int sent) "sent total: %d"
qemu_rdma_write_one_block(int count, int block, uint64_t chunk, uint64_t current, uint64_t len, int nb_sent, int nb_chunks) "(%d) Not clobbering: block: %d chunk %" PRIu64 " current %" PRIu64 " len %" PRIu64 " %d %d"
qemu_rdma_write_one_post(uint64_t chunk, long addr, long remote, uint32_t len) "Posting chunk: %" PRIu64 ", addr: 0x%lx remote: 0x%lx, bytes %" PRIu32
qemu_rdma_write_one_queue_full(void) ""
qemu_rdma_write_one_recvregres(int mykey, int theirkey, uint64_t chunk) "Received registration result: my key: 0x%x their key 0x%x, chunk %" PRIu64
qemu_rdma_write_one_sendreg(uint64_t chunk, int len, int index, int64_t offset) "Sending registration request chunk %" PRIu64 " for %d bytes, index: %d, offset: %" PRId64
qemu_rdma_write_one_top(uint64_t chunks, uint64_t size) "Writing %" PRIu64 " chunks, (%" PRIu64 " MB)"
qemu_rdma_write_one_zero(uint64_t chunk, int len, int index, int64_t offset) "Entire chunk is zero, sending compress: %" PRIu64 " for %d bytes, index: %d, offset: %" PRId64
rdma_add_block(const char *block_name, int block, uint64_t addr, uint64_t offset, uint64_t len, uint64_t end, uint64_t bits, int chunks) "Added Block: '%s':%d, addr: %" PRIu64 ", offset: %" PRIu64 " length: %" PRIu64 " end: %" PRIu64 " bits %" PRIu64 " chunks %d"
rdma_block_notification_handle(const char *name, int index) "%s at %d"
rdma_delete_block(void *block, uint64_t addr, uint64_t offset, uint64_t len, uint64_t end, uint64_t bits, int chunks) "Deleted Block: %p, addr: %" PRIu64 ", offset: %" PRIu64 " length: %" PRIu64 " end: %" PRIu64 " bits %" PRIu64 " chunks %d"
rdma_start_incoming_migration(void) ""
rdma_start_incoming_migration_after_dest_init(void) ""
rdma_start_incoming_migration_after_rdma_listen(void) ""
rdma_start_outgoing_migration_after_rdma_connect(void) ""
rdma_start_outgoing_migration_after_rdma_source_init(void) ""
# postcopy-ram.c
postcopy_discard_send_finish(const char *ramblock, int nwords, int ncmds) "%s mask words sent=%d in %d commands"
postcopy_discard_send_range(const char *ramblock, unsigned long start, unsigned long length) "%s:%lx/%lx"
postcopy_cleanup_range(const char *ramblock, void *host_addr, size_t offset, size_t length) "%s: %p offset=0x%zx length=0x%zx"
postcopy_init_range(const char *ramblock, void *host_addr, size_t offset, size_t length) "%s: %p offset=0x%zx length=0x%zx"
postcopy_nhp_range(const char *ramblock, void *host_addr, size_t offset, size_t length) "%s: %p offset=0x%zx length=0x%zx"
postcopy_place_page(void *host_addr) "host=%p"
postcopy_place_page_zero(void *host_addr) "host=%p"
postcopy_ram_enable_notify(void) ""
mark_postcopy_blocktime_begin(uint64_t addr, void *dd, uint32_t time, int cpu, int received) "addr: 0x%" PRIx64 ", dd: %p, time: %u, cpu: %d, already_received: %d"
mark_postcopy_blocktime_end(uint64_t addr, void *dd, uint32_t time, int affected_cpu) "addr: 0x%" PRIx64 ", dd: %p, time: %u, affected_cpu: %d"
postcopy_pause_fault_thread(void) ""
postcopy_pause_fault_thread_continued(void) ""
postcopy_pause_fast_load(void) ""
postcopy_pause_fast_load_continued(void) ""
postcopy_ram_fault_thread_entry(void) ""
postcopy_ram_fault_thread_exit(void) ""
postcopy_ram_fault_thread_fds_core(int baseufd, int quitfd) "ufd: %d quitfd: %d"
postcopy_ram_fault_thread_fds_extra(size_t index, const char *name, int fd) "%zd/%s: %d"
postcopy_ram_fault_thread_quit(void) ""
postcopy_ram_fault_thread_request(uint64_t hostaddr, const char *ramblock, size_t offset, uint32_t pid) "Request for HVA=0x%" PRIx64 " rb=%s offset=0x%zx pid=%u"
postcopy_ram_incoming_cleanup_closeuf(void) ""
postcopy_ram_incoming_cleanup_entry(void) ""
postcopy_ram_incoming_cleanup_exit(void) ""
postcopy_ram_incoming_cleanup_join(void) ""
postcopy_ram_incoming_cleanup_blocktime(uint64_t total) "total blocktime %" PRIu64
postcopy_request_shared_page(const char *sharer, const char *rb, uint64_t rb_offset) "for %s in %s offset 0x%"PRIx64
postcopy_request_shared_page_present(const char *sharer, const char *rb, uint64_t rb_offset) "%s already %s offset 0x%"PRIx64
postcopy_wake_shared(uint64_t client_addr, const char *rb) "at 0x%"PRIx64" in %s"
postcopy_page_req_del(void *addr, int count) "resolved page req %p total %d"
postcopy_preempt_new_channel(void) ""
postcopy_preempt_thread_entry(void) ""
postcopy_preempt_thread_exit(void) ""
get_mem_fault_cpu_index(int cpu, uint32_t pid) "cpu: %d, pid: %u"
# exec.c
migration_exec_outgoing(const char *cmd) "cmd=%s"
migration_exec_incoming(const char *cmd) "cmd=%s"
# fd.c
migration_fd_outgoing(int fd) "fd=%d"
migration_fd_incoming(int fd) "fd=%d"
# socket.c
migration_socket_incoming_accepted(void) ""
migration_socket_outgoing_connected(const char *hostname) "hostname=%s"
migration_socket_outgoing_error(const char *err) "error=%s"
# tls.c
migration_tls_outgoing_handshake_start(const char *hostname) "hostname=%s"
migration_tls_outgoing_handshake_error(const char *err) "err=%s"
migration_tls_outgoing_handshake_complete(void) ""
migration_tls_incoming_handshake_start(void) ""
migration_tls_incoming_handshake_error(const char *err) "err=%s"
migration_tls_incoming_handshake_complete(void) ""
# colo.c
colo_vm_state_change(const char *old, const char *new) "Change '%s' => '%s'"
colo_send_message(const char *msg) "Send '%s' message"
colo_receive_message(const char *msg) "Receive '%s' message"
# colo-failover.c
colo_failover_set_state(const char *new_state) "new state %s"
# block-dirty-bitmap.c
send_bitmap_header_enter(void) ""
send_bitmap_bits(uint32_t flags, uint64_t start_sector, uint32_t nr_sectors, uint64_t data_size) "flags: 0x%x, start_sector: %" PRIu64 ", nr_sectors: %" PRIu32 ", data_size: %" PRIu64
dirty_bitmap_save_iterate(int in_postcopy) "in postcopy: %d"
dirty_bitmap_save_complete_enter(void) ""
dirty_bitmap_save_complete_finish(void) ""
dirty_bitmap_save_pending(uint64_t pending, uint64_t max_size) "pending %" PRIu64 " max: %" PRIu64
dirty_bitmap_load_complete(void) ""
dirty_bitmap_load_bits_enter(uint64_t first_sector, uint32_t nr_sectors) "chunk: %" PRIu64 " %" PRIu32
dirty_bitmap_load_bits_zeroes(void) ""
dirty_bitmap_load_header(uint32_t flags) "flags 0x%x"
dirty_bitmap_load_enter(void) ""
dirty_bitmap_load_success(void) ""
# dirtyrate.c
dirtyrate_set_state(const char *new_state) "new state %s"
query_dirty_rate_info(const char *new_state) "current state %s"
get_ramblock_vfn_hash(const char *idstr, uint64_t vfn, uint32_t crc) "ramblock name: %s, vfn: %"PRIu64 ", crc: %" PRIu32
calc_page_dirty_rate(const char *idstr, uint32_t new_crc, uint32_t old_crc) "ramblock name: %s, new crc: %" PRIu32 ", old crc: %" PRIu32
skip_sample_ramblock(const char *idstr, uint64_t ramblock_size) "ramblock name: %s, ramblock size: %" PRIu64
find_page_matched(const char *idstr) "ramblock %s addr or size changed"
dirtyrate_calculate(int64_t dirtyrate) "dirty rate: %" PRIi64 " MB/s"
dirtyrate_do_calculate_vcpu(int idx, uint64_t rate) "vcpu[%d]: %"PRIu64 " MB/s"
# block.c
migration_block_init_shared(const char *blk_device_name) "Start migration for %s with shared base image"
migration_block_init_full(const char *blk_device_name) "Start full migration for %s"
migration_block_save_device_dirty(int64_t sector) "Error reading sector %" PRId64
migration_block_flush_blks(const char *action, int submitted, int read_done, int transferred) "%s submitted %d read_done %d transferred %d"
migration_block_save(const char *mig_stage, int submitted, int transferred) "Enter save live %s submitted %d transferred %d"
migration_block_save_complete(void) "Block migration completed"
migration_block_save_pending(uint64_t pending) "Enter save live pending %" PRIu64
# page_cache.c
migration_pagecache_init(int64_t max_num_items) "Setting cache buckets to %" PRId64
migration_pagecache_insert(void) "Error allocating page"