=== REDIS BUG REPORT START: Cut & paste starting from here ===
1249:M 03 Jan 2020 11:22:26.911 # Redis 5.0.7 crashed by signal: 11
1249:M 03 Jan 2020 11:22:26.911 # Crashed running the instruction at: 0x7f0410076830
1249:M 03 Jan 2020 11:22:26.911 # Accessing address: 0xffffffffffffffff
1249:M 03 Jan 2020 11:22:26.912 # Failed assertion:
------ STACK TRACE ------ EIP: /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410076830]
Backtrace: /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410077c8a] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410078441] /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7f040f442890] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410076830] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410031528] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410031c3f] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f04100425e1] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f041002af00] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f041002b2eb] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f0410027ea5] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7f040f051b97] /usr/local/bin/redis-server 127.0.0.1:8916 cluster[0x7f04100280ea]
------ INFO OUTPUT ------
Server
redis_version:5.0.7 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:b81aa0adbf844803 redis_mode:cluster os:Linux 4.4.0-17763-Microsoft x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:atomic-builtin gcc_version:7.4.0 process_id:1249 run_id:455f88f8c3d5ccee46e85a3b0ef588f446f5729d tcp_port:8916 uptime_in_seconds:1341 uptime_in_days:0 hz:10 configured_hz:10 lru_clock:963442 executable:/usr/local/bin/redis-server config_file:/test/redis/cluster/8916/redis_8916.conf
Clients
connected_clients:1 client_recent_max_input_buffer:2 client_recent_max_output_buffer:0 blocked_clients:0
Memory
used_memory:2625864 used_memory_human:2.50M used_memory_rss:3112960 used_memory_rss_human:2.97M used_memory_peak:2657432 used_memory_peak_human:2.53M used_memory_peak_perc:98.81% used_memory_overhead:2511480 used_memory_startup:1392208 used_memory_dataset:114384 used_memory_dataset_perc:9.27% allocator_allocated:2574544 allocator_active:3075072 allocator_resident:3075072 total_system_memory:8497946624 total_system_memory_human:7.91G used_memory_lua:37888 used_memory_lua_human:37.00K used_memory_scripts:0 used_memory_scripts_human:0B number_of_cached_scripts:0 maxmemory:0 maxmemory_human:0B maxmemory_policy:noeviction allocator_frag_ratio:1.19 allocator_frag_bytes:500528 allocator_rss_ratio:1.00 allocator_rss_bytes:0 rss_overhead_ratio:1.01 rss_overhead_bytes:37888 mem_fragmentation_ratio:1.21 mem_fragmentation_bytes:538416 mem_not_counted_for_evict:0 mem_replication_backlog:1052656 mem_clients_slaves:16922 mem_clients_normal:49694 mem_aof_buffer:0 mem_allocator:libc active_defrag_running:0 lazyfree_pending_objects:0
Persistence
loading:0 rdb_changes_since_last_save:0 rdb_bgsave_in_progress:0 rdb_last_save_time:1578021447 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 rdb_last_cow_size:0 aof_enabled:1 aof_rewrite_in_progress:0 aof_rewrite_scheduled:0 aof_last_rewrite_time_sec:-1 aof_current_rewrite_time_sec:-1 aof_last_bgrewrite_status:ok aof_last_write_status:ok aof_last_cow_size:0 aof_current_size:0 aof_base_size:0 aof_pending_rewrite:0 aof_buffer_length:0 aof_rewrite_buffer_length:0 aof_pending_bio_fsync:0 aof_delayed_fsync:0
Stats
total_connections_received:9 total_commands_processed:939 instantaneous_ops_per_sec:1 total_net_input_bytes:46016 total_net_output_bytes:23897 instantaneous_input_kbps:0.04 instantaneous_output_kbps:0.00 rejected_connections:0 sync_full:2 sync_partial_ok:0 sync_partial_err:2 expired_keys:0 expired_stale_perc:0.00 expired_time_cap_reached_count:0 evicted_keys:0 keyspace_hits:0 keyspace_misses:0 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:3414 migrate_cached_sockets:0 slave_expires_tracked_keys:0 active_defrag_hits:0 active_defrag_misses:0 active_defrag_key_hits:0 active_defrag_key_misses:0
Replication
role:master connected_slaves:1 slave0:ip=127.0.0.1,port=8917,state=online,offset=994,lag=0 master_replid:53474e5858e5991580e6117130a404739880cac1 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:994 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:1 repl_backlog_histlen:994
CPU
used_cpu_sys:2.812500 used_cpu_user:0.859375 used_cpu_sys_children:0.031250 used_cpu_user_children:0.000000
Commandstats
cmdstat_cluster:calls=216,usec=10873,usec_per_call=50.34 cmdstat_replconf:calls=710,usec=3363,usec_per_call=4.74 cmdstat_psync:calls=2,usec=19953,usec_per_call=9976.50 cmdstat_auth:calls=9,usec=29,usec_per_call=3.22 cmdstat_info:calls=2,usec=212,usec_per_call=106.00
Cluster
cluster_enabled:1
Keyspace
------ CLIENT LIST OUTPUT ------ id=10 addr=127.0.0.1:51204 fd=26 name= age=299 idle=0 flags=S db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 obl=0 oll=0 omem=0 events=r cmd=replconf id=11 addr=127.0.0.1:51255 fd=29 name= age=0 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=29 qbuf-free=32739 obl=0 oll=0 omem=0 events=r cmd=debug
------ CURRENT CLIENT INFO ------ id=11 addr=127.0.0.1:51255 fd=29 name= age=0 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=29 qbuf-free=32739 obl=0 oll=0 omem=0 events=r cmd=debug argv[0]: 'debug' argv[1]: 'segfault'
------ REGISTERS ------ 1249:M 03 Jan 2020 11:22:26.926 # RAX:0000000000000000 RBX:00007fffec2e0f90 RCX:0000000000000000 RDX:00007f040f1cddc0 RDI:00007fffec2dcda3 RSI:00007f04100eb2f2 RBP:00007ffff3efc2b0 RSP:00007ffff3efb170 R8 :000000000000ffff R9 :00000000000000ff R10:00007f040f1bc3f0 R11:0000000000000001 R12:0000000000000002 R13:00007fffec2cb810 R14:0000000000000000 R15:00059b33d1ac21db RIP:00007f0410076830 EFL:0000000000010246 CSGSFS:00000053002b0033 1249:M 03 Jan 2020 11:22:26.926 # (00007ffff3efb17f) -> 00007f0410038b5f 1249:M 03 Jan 2020 11:22:26.927 # (00007ffff3efb17e) -> 0000000000000004 1249:M 03 Jan 2020 11:22:26.928 # (00007ffff3efb17d) -> 00746174732f3934 1249:M 03 Jan 2020 11:22:26.930 # (00007ffff3efb17c) -> 32312f636f72702f 1249:M 03 Jan 2020 11:22:26.930 # (00007ffff3efb17b) -> 00007f0410038ddf 1249:M 03 Jan 2020 11:22:26.930 # (00007ffff3efb17a) -> 0000000000000001 1249:M 03 Jan 2020 11:22:26.931 # (00007ffff3efb179) -> 00007fffec214630 1249:M 03 Jan 2020 11:22:26.931 # (00007ffff3efb178) -> 00007fffec287b50 1249:M 03 Jan 2020 11:22:26.932 # (00007ffff3efb177) -> 0000000000001000 1249:M 03 Jan 2020 11:22:26.932 # (00007ffff3efb176) -> 0000000000000000 1249:M 03 Jan 2020 11:22:26.933 # (00007ffff3efb175) -> 00007ffff3efb32a 1249:M 03 Jan 2020 11:22:26.933 # (00007ffff3efb174) -> 0000000000000001 1249:M 03 Jan 2020 11:22:26.933 # (00007ffff3efb173) -> 00007fffec2dcda3 1249:M 03 Jan 2020 11:22:26.934 # (00007ffff3efb172) -> 00000000ec058d70 1249:M 03 Jan 2020 11:22:26.934 # (00007ffff3efb171) -> 00007fffec2e0f95 1249:M 03 Jan 2020 11:22:26.934 # (00007ffff3efb170) -> 00007fffec2be320
------ FAST MEMORY TEST ------ 1249:M 03 Jan 2020 11:22:26.936 # Bio thread for job type #0 terminated 1249:M 03 Jan 2020 11:22:26.937 # Bio thread for job type #1 terminated 1249:M 03 Jan 2020 11:22:26.937 # Bio thread for job type #2 terminated *** Preparing to test memory region 7f040d657000 (4096 bytes) *** Preparing to test memory region 7f040d660000 (1052672 bytes) *** Preparing to test memory region 7f040d771000 (8388608 bytes) *** Preparing to test memory region 7f040df81000 (8388608 bytes) *** Preparing to test memory region 7f040e791000 (8388608 bytes) *** Preparing to test memory region 7f040efa0000 (528384 bytes) *** Preparing to test memory region 7f040f41b000 (8192 bytes) *** Preparing to test memory region 7f040f41d000 (16384 bytes) *** Preparing to test memory region 7f040f64a000 (4096 bytes) *** Preparing to test memory region 7f040f64b000 (16384 bytes) *** Preparing to test memory region 7f040f853000 (4096 bytes) *** Preparing to test memory region 7f040fbfd000 (4096 bytes) *** Preparing to test memory region 7f040fc60000 (327680 bytes) *** Preparing to test memory region 7f040fe28000 (4096 bytes) *** Preparing to test memory region 7f040fe29000 (4096 bytes) *** Preparing to test memory region 7f040ffe0000 (8192 bytes) *** Preparing to test memory region 7f040fff0000 (8192 bytes) *** Preparing to test memory region 7f0410320000 (20480 bytes) *** Preparing to test memory region 7f0410325000 (94208 bytes) *** Preparing to test memory region 7fffec212000 (966656 bytes) .O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O Fast memory test PASSED, however your memory can still be broken. Please run a memory test for several hours if possible.
------ DUMPING CODE AROUND EIP ------ Symbol: debugCommand (base: 0x7f04100766f0) Module: /usr/local/bin/redis-server 127.0.0.1:8916 [cluster] (base 0x7f0410000000) $ xxd -r -p /tmp/dump.hex /tmp/dump.bin $ objdump --adjust-vma=0x7f04100766f0 -D -b binary -m i386:x86-64 /tmp/dump.bin
1249:M 03 Jan 2020 11:22:27.043 # dump of function (hexdump of 448 bytes): 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
=== REDIS BUG REPORT END. Make sure to include from START to END. ===
Comment From: itamarhaber
Hello @liusai99820
By running the DEBUG SEGFAULT you get the above - this isn't an issue, kindly close it.