Hello !

I just got a segmentation fault on redis-server while doing a master-slave replication from a master on 2.6.5 and a slave on 2.4.6. I'm pretty sure this is just not supposed to work and I will just upgrade version on my slave but I thought that you might like to have the crash report anyway so here it is:

[21758] 17 Apr 14:56:59 # === REDIS BUG REPORT START: Cut & paste starting from here ===
[21758] 17 Apr 14:56:59 # === ASSERTION FAILED ===
[21758] 17 Apr 14:56:59 # ==> replication.c:267 'server.replstate == REDIS_REPL_TRANSFER' is not true
[21758] 17 Apr 14:56:59 # (forcing SIGSEGV to print the bug report.)
[21758] 17 Apr 14:56:59 # Redis 2.4.6 crashed by signal: 11
[21758] 17 Apr 14:56:59 # Failed assertion: server.replstate == REDIS_REPL_TRANSFER (replication.c:267)
[21758] 17 Apr 14:57:00 # --- STACK TRACE
[21758] 17 Apr 14:57:00 # redis-server(_redisAssert+0x6f) [0x432b6f]
[21758] 17 Apr 14:57:00 # redis-server(_redisAssert+0x6f) [0x432b6f]
[21758] 17 Apr 14:57:00 # redis-server(replicationAbortSyncTransfer+0x75) [0x41de15]
[21758] 17 Apr 14:57:00 # redis-server(readSyncBulkPayload+0x9c) [0x41e24c]
[21758] 17 Apr 14:57:00 # redis-server(aeProcessEvents+0x153) [0x40d5b3]
[21758] 17 Apr 14:57:00 # redis-server(aeMain+0x2e) [0x40d7fe]
[21758] 17 Apr 14:57:00 # redis-server(main+0xff) [0x412d9f]
[21758] 17 Apr 14:57:00 # /lib/libc.so.6(__libc_start_main+0xfd) [0x7f10fc7e3c4d]
[21758] 17 Apr 14:57:00 # redis-server() [0x40cb09]
[21758] 17 Apr 14:57:00 # --- INFO OUTPUT
[21758] 17 Apr 14:57:00 # redis_version:2.4.6
redis_git_sha1:00000000
redis_git_dirty:0
arch_bits:64
multiplexing_api:epoll
gcc_version:4.4.3
process_id:21758
uptime_in_seconds:308
uptime_in_days:0
lru_clock:306181
used_cpu_sys:1.86
used_cpu_user:0.16
used_cpu_sys_children:0.00
used_cpu_user_children:0.00
connected_clients:1
connected_slaves:0
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
used_memory:726368
used_memory_human:709.34K
used_memory_rss:1978368
used_memory_peak:726392
used_memory_peak_human:709.37K
mem_fragmentation_ratio:2.72
mem_allocator:jemalloc-2.2.5
loading:0
aof_enabled:0
changes_since_last_save:0
bgsave_in_progress:0
last_save_time:1366210312
bgrewriteaof_in_progress:0
total_connections_received:1
total_commands_processed:17
expired_keys:0
evicted_keys:0
keyspace_hits:0
keyspace_misses:0
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:0
vm_enabled:0
role:slave
master_host:107.21.102.190
master_port:10671
master_link_status:down
master_last_io_seconds_ago:-1
master_sync_in_progress:0
master_link_down_since_seconds:1366210621

[21758] 17 Apr 14:57:00 # --- CLIENT LIST OUTPUT
[21758] 17 Apr 14:57:00 # addr=184.75.97.81:56673 fd=5 idle=1 flags=N db=0 sub=0 psub=0 qbuf=0 obl=0 oll=0 events=r cmd=info

[21758] 17 Apr 14:57:00 # === REDIS BUG REPORT END. Make sure to include from START to END. ===

Please report the crash opening an issue on github:

    http://github.com/antirez/redis/issues

Segmentation fault

Thanks !