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<3>device-mapper: snapshots: Invalidating snapshot: Unable to allocate exception.
<3>device-mapper: snapshots: Snapshot is invalid: can't merge
<3>device-mapper: snapshots: Read error in exception store: shutting down merge
<3>device-mapper: snapshots: Read error: shutting down merge.
<3>device-mapper: snapshots: Write error: shutting down merge.
<3>device-mapper: snapshots: Write error in exception store: shutting down merge
<3>device-mapper: snapshots: Corruption detected: exception for block %llu is on disk but not in memory
<3>device-mapper: snapshots: Attempt to merge block %llu from the middle of a chunk range [%llu - %llu]
origin: incorrect number of arguments Cannot allocate private origin structure <3>device-mapper: snapshots: Unable to resume snapshot source until handover completes.
<3>device-mapper: snapshots: Unable to perform snapshot handover until source is suspended.
<3>device-mapper: snapshots: Cancelling snapshot handover.
<3>device-mapper: snapshots: Failed to initialize exception stores
<3>device-mapper: snapshots: snapshot target register failed %d
<3>device-mapper: snapshots: Origin target register failed %d
<3>device-mapper: snapshots: Merge target register failed %d
<3>device-mapper: snapshots: unable to allocate memory for _origins
<3>device-mapper: snapshots: unable to allocate memory for _dm_origins
<3>device-mapper: snapshots: init_origin_hash failed.
<3>device-mapper: snapshots: Couldn't create exception cache.
<3>device-mapper: snapshots: Couldn't create pending cache.
<3>device-mapper: snapshots: Couldn't create cache to track chunks in use.
Cannot allocate private snapshot structure Couldn't create exception store Unable to allocate hash table space Could not create kcopyd client Could not allocate mempool for pending exceptions Could not allocate tracked_chunk mempool for tracking reads Snapshot cow pairing for exception table handover failed A snapshot is already merging. Snapshot exception store does not support snapshot-merge. Snapshot origin struct allocation failed Failed to read snapshot metadata <4>device-mapper: snapshots: Snapshot is marked invalid.
<3>device-mapper: snapshot exception stores: Unable to register transient exception store type.
<3>device-mapper: snapshot exception stores: Unable to register persistent exception store type
<3>device-mapper: snapshot exception stores: No memory left to attempt load for "%s"
<4>device-mapper: snapshot exception stores: Module for exstore type "%s" not found.
Chunk size is not a multiple of device blocksize Chunk size is not a power of 2 Insufficient exception store arguments Exception store allocation failed Exception store type not recognised Exception store type constructor failed <4>device-mapper: transient snapshot: Unable to register transient exception store type
<4>device-mapper: transient snapshot: Unable to register old-style transient exception store type
<4>device-mapper: persistent snapshot: write header failed
drivers/md/dm-snap-persistent.c <4>device-mapper: persistent snapshot: Invalid or corrupt snapshot
<4>device-mapper: persistent snapshot: chunk size %u in device metadata overrides table chunk size of %u.
<3>device-mapper: persistent snapshot: invalid on-disk chunk size %u: %s.
<4>device-mapper: persistent snapshot: write_header failed
<4>device-mapper: persistent snapshot: zero_disk_area(0) failed
<4>device-mapper: persistent snapshot: unable to handle snapshot disk version %d
<3>device-mapper: persistent snapshot: couldn't start header metadata update thread
<3>device-mapper: persistent snapshot: Unable to register persistent exception store type
<3>device-mapper: persistent snapshot: Unable to register old-style persistent exception store type
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1 dm-snap.c snapshot_iterate_devices origin_merge origin_iterate_devices get_origin_minimum_chunksize _origins_lock _origins __find_snapshots_sharing_cow dm_snapshot_merge_target_name wait_schedule start_copy copy_callback free_pending_exception dm_insert_exception exception_cache __find_pending_exception origin_resume _dm_origins __invalidate_snapshot __origin_write do_origin origin_map pending_complete origin_postsuspend alloc_completed_exception dm_add_exception __check_for_conflicting_io _pending_exceptions_done_spinlock _pending_exceptions_done_count _pending_exceptions_done track_chunk snapshot_merge_map snapshot_merge_next_chunks merge_callback stop_merge snapshot_merge_presuspend origin_status origin_dtr unregister_snapshot exit_origin_hash dm_snapshot_exit snapshot_target origin_target merge_target pending_cache tracked_chunk_cache origin_ctr snapshot_status snapshot_resume snapshot_merge_resume snapshot_preresume snapshot_end_io snapshot_map full_bio_end_io dm_exception_table_exit snapshot_dtr dm_snapshot_init __key.34521 snapshot_ctr __key.35591 dm_kcopyd_throttle __mod_alias2498 __mod_alias2497 __mod_license2496 __mod_author2495 __mod_description2494 __ksymtab_dm_snap_cow __kstrtab_dm_snap_cow __kcrctab_dm_snap_cow __ksymtab_dm_snap_origin __kstrtab_dm_snap_origin __kcrctab_dm_snap_origin __mod_snapshot_copy_throttle144 __mod_snapshot_copy_throttletype144 __param_snapshot_copy_throttle __param_str_snapshot_copy_throttle .LC0 .LC3 dm-exception-store.c put_type _lock __find_exception_store_type _exception_store_types _get_exception_store_type get_type __ksymtab_dm_exception_store_destroy __kstrtab_dm_exception_store_destroy __kcrctab_dm_exception_store_destroy __ksymtab_dm_exception_store_create __kstrtab_dm_exception_store_create __kcrctab_dm_exception_store_create __ksymtab_dm_exception_store_type_unregister __kstrtab_dm_exception_store_type_unregister __kcrctab_dm_exception_store_type_unregister __ksymtab_dm_exception_store_type_register __kstrtab_dm_exception_store_type_register __kcrctab_dm_exception_store_type_register dm-snap-transient.c transient_read_metadata transient_commit_exception _transient_type _transient_compat_type transient_usage transient_prepare_exception transient_status transient_dtr transient_ctr dm-snap-persistent.c _persistent_type _persistent_compat_type persistent_usage persistent_prepare_exception persistent_status do_metadata chunk_io write_header persistent_drop_snapshot area_io persistent_commit_merge persistent_prepare_merge persistent_commit_exception alloc_area free_area persistent_read_metadata persistent_dtr persistent_ctr .LC2 dm-snapshot.mod.c _rheldata __mod_srcversion121 __module_depends ____versions __mod_vermagic5 dm_internal_resume_fast __init_rwsem dm_kcopyd_do_callback __this_module snprintf dm_transient_snapshot_init dm_put_device dm_table_get_size dm_bufio_prefetch finish_wait scnprintf __crc_dm_exception_store_create cleanup_module param_set_uint prepare_to_wait memcpy kstrtouint dm_hold kfree dm_kcopyd_prepare_callback dm_bufio_read dm_io_client_create out_of_line_wait_on_bit __wake_up dm_persistent_snapshot_init kmem_cache_create __per_cpu_offset mempool_free kmem_cache_alloc_trace init_module mempool_create dm_kcopyd_client_create schedule param_get_uint mempool_alloc pv_irq_ops kmem_cache_alloc vzalloc strrchr module_put dm_bufio_client_destroy dm_snap_origin bio_endio flush_workqueue dm_persistent_snapshot_exit down_write up_write __create_workqueue_key mempool_free_slab __crc_dm_snap_origin generic_make_request __crc_dm_exception_store_destroy dm_suspended _spin_unlock_irqrestore list_del destroy_workqueue kmem_cache_free mcount dm_bufio_client_create dm_bufio_release __crc_dm_exception_store_type_unregister dm_unregister_target __tracepoint_module_get _spin_lock_irq printk dm_exception_store_type_unregister dm_exception_store_type_register _ctype dm_set_target_max_io_len dm_exception_store_destroy dm_exception_store_exit memset dm_table_event dm_internal_suspend_fast mempool_alloc_slab per_cpu__cpu_number dm_exception_store_set_chunk_size dm_put dm_io_client_destroy strcmp down_read __list_add kstrdup dm_kcopyd_copy _spin_lock_irqsave dm_register_target vfree dm_exception_store_create dm_vcalloc __crc_dm_exception_store_type_register queue_work mempool_destroy dm_kcopyd_client_destroy dm_snap_cow _spin_lock dm_table_get_mode dm_bufio_set_minimum_buffers malloc_sizes dm_table_get_md dm_transient_snapshot_exit dm_bufio_get_device_size autoremove_wake_function dm_io dm_get_device wake_up_bit dm_exception_store_init vmalloc __crc_dm_snap_cow up_read dm_bufio_forget msleep per_cpu__current_task __request_module kmem_cache_destroy dm-snapshot.ko.debug SfO .rodata.str1.1 .rodata.str1.8 .rela.data .rheldata .rodata .rela__kcrctab .symtab .rela__ksymtab .strtab .shstrtab .rela__mcount_loc .note.gnu.build-id .rela__bug_table .rela.gnu.linkonce.this_module .note.module.sig .gnu_debuglink 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