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' B x G Q i n x T T cache_map process_cell cache_copy_throttle drivers/md/dm-cache-target.c write read-only fail dm_cache_commit Fail 1 writethrough 1 passthrough 1 writeback 2 migration_threshold %llu %s 0 ro rw needs_check - %u:%u %s %s Error migration_threshold invalidate_cblocks %llu-%llu%c %llu%c dm_cache_resize dm_cache_set_dirty dm_cache_set_discard dm_cache_write_hints dm_cache_remove_mapping dm_cache_insert_mapping dm_cache_migration dm_cache_wb_per_bio_data dm_cache_wt_per_bio_data dm_cache_load_mappings dm_cache_load_discards Insufficient args Error opening metadata device Error opening cache device Error opening origin device Invalid data block size writeback writethrough passthrough Error creating cache's policy dm-cache could not create bio prison cache &cmd->root_lock superblock dm-cache-%s % x q q p q $ ( q 0 $ 4 q < v$ @ q H z$ L q T 5 X q ` 5 d q l 5 p q x D | q D q D q D q D q E q E q @ J ( I ( 8 0 R 8 @ H
P # X - ` - h . p 2 x h3 3 3 H4 W4 4 4 4 5 6 ; B aG QZ qZ e u _v w w <4>device-mapper: cache: You have created a cache device with a lot of individual cache blocks (%llu)
All these mappings can consume a lot of kernel memory, and take some time to read/write.
Please consider increasing the cache block size to reduce the overall cache block count.
<3>device-mapper: cache: %s: unable to switch cache to write mode until repaired.
<6>device-mapper: cache: %s: switching cache to %s mode
<3>device-mapper: cache: %s: metadata operation '%s' failed: error = %d
<3>device-mapper: cache: %s: failed to set 'needs_check' flag in metadata
<3>device-mapper: cache: %s: aborting current metadata transaction
<3>device-mapper: cache: %s: failed to abort metadata transaction
<3>device-mapper: cache: %s: dm_cache_get_free_metadata_block_count returned %d
<3>device-mapper: cache: %s: dm_cache_get_metadata_dev_size returned %d
%u %llu/%llu %u %llu/%llu %u %u %u %u %u %u %lu <3>device-mapper: cache: %s: internal error: unknown io mode: %d
<3>device-mapper: cache: %s: policy_emit_config_values returned %d
<4>device-mapper: cache: bad config value for %s: %s
<3>device-mapper: cache: %s: unable to service cache target messages in READ_ONLY or FAIL mode
<3>device-mapper: cache: %s: cache has to be in passthrough mode for invalidation
<3>device-mapper: cache: %s: invalid cblock range '%s'
<3>device-mapper: cache: %s: begin cblock out of range: %llu >= %llu
<3>device-mapper: cache: %s: end cblock out of range: %llu > %llu
<3>device-mapper: cache: %s: invalid cblock range: %llu >= %llu
<3>device-mapper: cache: %s: could not resize cache metadata
<3>device-mapper: cache: %s: could not write dirty bitset
<3>device-mapper: cache: %s: could not resize on-disk discard bitset
dm_cache_discard_bitset_resize <3>device-mapper: cache: %s: could not write discard bitset
<3>device-mapper: cache: %s: could not write hints
<3>device-mapper: cache: %s: could not write cache metadata
<3>device-mapper: cache: %s: Unexpected return from cache replacement policy: %d
<3>device-mapper: cache: %s: %s: erroring bio: unknown policy op: %u
<3>device-mapper: cache: %s: %s: erroring bio, unknown policy op: %u
<4>device-mapper: cache: %s: writeback unexpectedly triggered commit
<3>device-mapper: cache: %s: writeback failed; couldn't copy block
<3>device-mapper: cache: %s: demotion failed; couldn't copy block
<3>device-mapper: cache: %s: promotion failed; couldn't copy block
<3>device-mapper: cache: %s: policy_remove_cblock failed
<3>device-mapper: cache: %s: demotion failed; couldn't update on disk metadata
<3>device-mapper: cache: %s: promotion failed; couldn't update on disk metadata
<3>device-mapper: cache: %s: issuing migration failed
<3>device-mapper: cache: cache target registration failed: %d
<3>device-mapper: cache: %s: unable to shrink cache; cache block %llu is dirty
<3>device-mapper: cache: %s: could not load cache mappings
<3>device-mapper: cache: %s: could not load origin discards
Error allocating memory for cache <4>device-mapper: cache: Metadata device %s is larger than %u sectors: excess space will not be used.
Device size larger than cached device Data block size is larger than the cache device Unrecognised cache feature requested <4>device-mapper: cache: Odd number of policy arguments given but they should be pairs.
Error creating metadata object Unable to get write access to metadata, please check/repair metadata. dm_cache_metadata_all_clean() failed Cannot enter passthrough mode unless all blocks are clean could not allocate dirty bitset could not allocate discard bitset could not create kcopyd client could not create workqueue for metadata object could not create all_io deferred set Error creating cache's migration mempool Error creating cache's writeback per-bio-data mempool Error creating cache's writethrough per-bio-data mempool Error setting cache policy's config values Invalid number of cache feature arguments Invalid number of policy arguments <3>device-mapper: cache metadata: sb_check failed: blocknr %llu: wanted %llu
<3>device-mapper: cache metadata: sb_check failed: magic %llu: wanted %llu
<3>device-mapper: cache metadata: sb_check failed: csum %u: wanted %u
<3>device-mapper: cache metadata: Cache metadata version %u found, but only versions between %u and %u supported.
<3>device-mapper: cache metadata: could not create block manager
<3>device-mapper: cache metadata: tm_create_with_sm failed
<3>device-mapper: cache metadata: couldn't read lock superblock
<3>device-mapper: cache metadata: changing the data block size (from %u to %llu) is not supported
<3>device-mapper: cache metadata: could not access metadata due to unsupported optional features (%lx).
<3>device-mapper: cache metadata: could not access metadata RDWR due to unsupported optional features (%lx).
<3>device-mapper: cache metadata: tm_open_with_sm failed
<3>device-mapper: cache metadata: couldn't read superblock
<3>device-mapper: cache metadata: block_unmapped_or_clean failed
<3>device-mapper: cache metadata: cache block %llu is dirty
<3>device-mapper: cache metadata: unable to shrink cache due to dirty blocks
<3>device-mapper: cache metadata: begin_hints failed
<3>device-mapper: cache metadata: could not allocate metadata struct
<3>device-mapper: cache metadata: data_block_size (%llu) different from that in metadata (%llu)
<4>device-mapper: cache-policy: couldn't get module %s
<4>device-mapper: cache-policy: unknown policy type
<4>device-mapper: cache-policy: hint size must be 0 or 4 but %llu supplied.
<4>device-mapper: cache-policy: attempt to register policy under duplicate name %s
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0 @ 8 H y P ` z h x | license=GPL author=Joe Thornber description=device-mapper cache target parm=cache_copy_throttle:A percentage of time allocated for copying to and/or from cache parmtype=cache_copy_throttle:uint srcversion=4672C0E6B5D7B5A37A1F90E depends=dm-persistent-data,dm-bio-prison,dm-mod vermagic=2.6.32-696.20.1.el6.x86_64 SMP mod_unload modversions r r 5 r u r r ( r ( 0 r 8 r Z @ r H r P r X r ` r E h r e p r z x r r
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" 5 E ^ v g o ( 7 H b y ` r x " y - 8 @ V c u } { 0e F 0y ' @k ! 0 ; K d p އ z 2 @ Z \ 5 } pc M c X f h + A T e x dm-cache-target.c set_dirty oblock_to_dblock remap_to_cache null_locker cache_is_congested cache_iterate_devices cache_bvec_merge dm_cache_exit cache_target migration_cache wb_per_bio_data_cache wt_per_bio_data_cache set_cache_size clear_dirty load_mapping cache_device_name set_cache_mode metadata_operation_failed commit cache_status cache_io_hints request_invalidation __key.38733 set_config_value cache_message do_waker cache_resume resize_cache_dev defer_bio is_discarded_oblock process_migrations copy_complete set_discard set_discard_range load_discard clear_discard free_prison_cell cache_postsuspend get_per_bio_data check_if_tick_bio_needed remap_to_origin_clear_discard remap_to_origin_then_cache writethrough_endio accounted_begin overwrite_endio cache_end_io prealloc_data_structs bio_detain cell_locker inc_ds inc_fn accounted_request issue remap_cell_to_cache_dirty remap_cell_to_origin_clear_discard process_deferred_flush_bios cell_defer cache_map __func__.38033 destroy cache_dtr quiesce_migration process_cell __func__.36884 free_migration prealloc_free_structs free_io_migration migration_success_post_commit migration_failure do_worker issue_copy_or_discard complete_migration migration_success_pre_commit dm_cache_init cache_preresume cache_ctr _args.37604 _args.37637 __key.37797 __key.37798 dm_kcopyd_throttle __mod_license3984 __mod_author3983 __mod_description3982 __mod_cache_copy_throttle24 __mod_cache_copy_throttletype24 __param_cache_copy_throttle __param_str_cache_copy_throttle .LC0 prealloc_put_cell dm-cache-metadata.c __save_sm_root set_clean_shutdown clear_clean_shutdown __clear_discard __set_discard __destroy_persistent_data_objects __setup_mapping_info sb_check sb_prepare_for_write __dump_mapping __create_persistent_data_objects sb_validator blocks_are_unmapped_or_clean __load_mapping read_superblock_fields policy_unchanged save_hint table_lock table __key.35143 dm-cache-policy.c register_lock get_policy_once register_list __ksymtab_dm_cache_policy_get_hint_size __kstrtab_dm_cache_policy_get_hint_size __kcrctab_dm_cache_policy_get_hint_size __ksymtab_dm_cache_policy_get_version __kstrtab_dm_cache_policy_get_version __kcrctab_dm_cache_policy_get_version __ksymtab_dm_cache_policy_get_name __kstrtab_dm_cache_policy_get_name __kcrctab_dm_cache_policy_get_name __ksymtab_dm_cache_policy_destroy __kstrtab_dm_cache_policy_destroy __kcrctab_dm_cache_policy_destroy __ksymtab_dm_cache_policy_create __kstrtab_dm_cache_policy_create __kcrctab_dm_cache_policy_create __ksymtab_dm_cache_policy_unregister __kstrtab_dm_cache_policy_unregister __kcrctab_dm_cache_policy_unregister __ksymtab_dm_cache_policy_register __kstrtab_dm_cache_policy_register __kcrctab_dm_cache_policy_register dm-cache.mod.c _rheldata __mod_srcversion162 __module_depends ____versions __mod_vermagic5 dm_bio_detain dm_deferred_set_create __crc_dm_cache_policy_get_name dm_cache_dump queue_delayed_work __init_rwsem dm_cache_policy_get_version dm_table_add_target_callbacks dm_get_mapinfo dm_cache_policy_unregister dm_cache_remove_mapping __this_module dm_cache_discard_bitset_resize dm_cache_metadata_close dm_array_info_init dm_block_data dm_put_device dm_bm_is_read_only dm_block_manager_create finish_wait dm_bio_prison_create scnprintf dm_cache_set_discard dm_cache_load_discards dm_cache_set_dirty cleanup_module param_set_uint prepare_to_wait dm_cache_metadata_open dm_deferred_set_add_work kfree dm_block_location dm_cell_error dm_tm_pre_commit __wake_up dm_cache_metadata_set_needs_check kmem_cache_create __crc_dm_cache_policy_get_version __per_cpu_offset mempool_free kmem_cache_alloc_trace dm_bm_flush init_module __crc_dm_cache_policy_destroy dm_cache_get_free_metadata_block_count dm_cache_metadata_get_stats dm_device_name dm_deferred_set_destroy mempool_create dm_kcopyd_client_create dm_bm_read_lock schedule dm_cache_load_mappings param_get_uint __stack_chk_fail dm_tm_create_with_sm dm_array_resize bdevname mempool_alloc __crc_dm_cache_policy_register vzalloc module_put dm_bm_write_lock_zero dm_bitset_clear_bit dm_disk_bitset_init dm_tm_destroy dm_cache_metadata_set_read_write bio_endio dm_bio_prison_alloc_cell dm_array_set_value dm_bm_set_read_only flush_workqueue dm_bitset_test_bit down_write dm_cell_promote_or_release up_write __create_workqueue_key mempool_free_slab generic_make_request dm_cache_insert_mapping dm_suspended __crc_dm_cache_policy_get_hint_size _spin_unlock_irqrestore dm_cache_resize list_del dm_cache_changed_this_transaction destroy_workqueue mutex_lock dm_bm_write_lock dm_array_empty strncmp mcount dm_shift_arg strncpy dm_deferred_entry_inc strcasecmp dm_unregister_target dm_ratelimit_state dm_bitset_empty dm_block_manager_destroy __tracepoint_module_get dm_cache_metadata_all_clean dm_array_walk sscanf printk dm_bm_checksum dm_set_target_max_io_len dm_bm_set_read_write memset dm_cache_commit dm_table_event kstrtoull dm_array_del del_timer_sync dm_bitset_resize dm_cache_metadata_abort dm_read_arg_group mempool_alloc_slab dm_cell_release per_cpu__cpu_number dm_bio_prison_destroy __init_waitqueue_head dm_cache_policy_get_name strcmp down_read dm_cache_policy_get_hint_size dm_bitset_flush __list_add jiffies dm_deferred_entry_dec dm_tm_commit blk_limits_io_min kstrdup dm_cache_policy_register sprintf dm_kcopyd_copy _spin_lock_irqsave dm_cache_size dm_register_target vfree dm_cache_policy_destroy mutex_unlock dm_cache_write_hints init_timer_key queue_work mempool_destroy dm_kcopyd_client_destroy __ratelimit __crc_dm_cache_policy_create dm_bio_prison_free_cell _spin_lock dm_bm_block_size dm_cache_policy_create malloc_sizes dm_table_get_md blk_limits_io_opt autoremove_wake_function dm_bitset_set_bit dm_get_device dm_cache_metadata_set_stats __crc_dm_cache_policy_unregister dm_get_cell dm_cache_metadata_needs_check up_read dm_bm_unlock dm_consume_args 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