gdb ./monerod
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Reading symbols from ./monerod...done.
(gdb) run
Starting program: /home/user/monero-v0.11.0.0/monerod
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
2017-09-24 16:38:21.371     7ffff7fc3ec0    INFO    global  src/daemon/main.cpp:279 Monero 'Helium Hydra' (v0.11.0.0-release)
2017-09-24 16:38:21.385     7ffff7fc3ec0    INFO    global  src/daemon/protocol.h:55    Initializing cryptonote protocol...
2017-09-24 16:38:21.385     7ffff7fc3ec0    INFO    global  src/daemon/protocol.h:60    Cryptonote protocol initialized OK
[New Thread 0x7ffff72e4700 (LWP 22685)]
[New Thread 0x7ffff6de3700 (LWP 22686)]
[New Thread 0x7ffff68e2700 (LWP 22687)]
2017-09-24 16:38:21.406     7ffff7fc3ec0    INFO    global  src/daemon/p2p.h:63 Initializing p2p server...
[New Thread 0x7ffff63e1700 (LWP 22688)]
[New Thread 0x7ffff5be0700 (LWP 22689)]
[New Thread 0x7ffff53df700 (LWP 22690)]
[New Thread 0x7ffff4bde700 (LWP 22691)]
[1506271101] libunbound[22681:0] info: warning: unsupported algorithm for trust anchor . DS IN
[1506271101] libunbound[22681:0] warning: trust anchor . has no supported algorithms, the anchor is ignored (check if you need to upgrade unbound and openssl)
[Thread 0x7ffff4bde700 (LWP 22691) exited]
[Thread 0x7ffff63e1700 (LWP 22688) exited]
[Thread 0x7ffff5be0700 (LWP 22689) exited]
[Thread 0x7ffff53df700 (LWP 22690) exited]
2017-09-24 16:38:22.720     7ffff7fc3ec0    INFO    global  src/daemon/p2p.h:68 P2p server initialized OK
2017-09-24 16:38:22.720     7ffff7fc3ec0    INFO    global  src/daemon/rpc.h:58 Initializing core rpc server...
2017-09-24 16:38:22.720     7ffff7fc3ec0    INFO    global  contrib/epee/include/net/http_server_impl_base.h:70 Binding on 127.0.0.1:18081
2017-09-24 16:38:22.721     7ffff7fc3ec0    INFO    global  src/daemon/rpc.h:63 Core rpc server initialized OK on port: 18081
2017-09-24 16:38:22.721     7ffff7fc3ec0    INFO    global  src/daemon/core.h:73    Initializing core...
2017-09-24 16:38:22.721     7ffff7fc3ec0    INFO    global  src/cryptonote_core/cryptonote_core.cpp:323 Loading blockchain from folder /home/user/.bitmonero/lmdb ...
[New Thread 0x7ffff4bde700 (LWP 22692)]
2017-09-24 16:38:42.418     7ffff7fc3ec0    INFO    global  src/cryptonote_core/cryptonote_core.cpp:421 Loading checkpoints
2017-09-24 16:38:43.077     7ffff7fc3ec0    WARN    net.dns src/common/dns_utils.cpp:487    WARNING: no two valid MoneroPulse DNS checkpoint records were received
2017-09-24 16:38:43.521     7ffff7fc3ec0    INFO    global  src/daemon/core.h:78    Core initialized OK
2017-09-24 16:38:43.521     7ffff7fc3ec0    INFO    global  src/daemon/rpc.h:68 Starting core rpc server...
[New Thread 0x7ffff53df700 (LWP 22693)]
[New Thread 0x7ffff5be0700 (LWP 22694)]
2017-09-24 16:38:43.522 [SRV_MAIN]  INFO    global  src/daemon/rpc.h:73 Core rpc server started ok
[New Thread 0x7ffff63e1700 (LWP 22695)]
[New Thread 0x7ff786f2c700 (LWP 22696)]
2017-09-24 16:38:43.523 [SRV_MAIN]  INFO    global  src/daemon/p2p.h:78 Starting p2p net loop...
[New Thread 0x7ff78672b700 (LWP 22697)]
[New Thread 0x7ff785f2a700 (LWP 22698)]
[New Thread 0x7ff785a29700 (LWP 22699)]
[New Thread 0x7ff785528700 (LWP 22700)]
[New Thread 0x7ff785027700 (LWP 22701)]
[New Thread 0x7ff784b26700 (LWP 22702)]
[New Thread 0x7ff784625700 (LWP 22703)]
[New Thread 0x7ff784124700 (LWP 22704)]
[New Thread 0x7ff783c23700 (LWP 22705)]
[New Thread 0x7ff783722700 (LWP 22706)]
[New Thread 0x7ff77f126700 (LWP 22707)]
2017-09-24 16:38:44.524 [P2P0]  INFO    global  src/cryptonote_core/cryptonote_core.cpp:1247
**********************************************************************
The daemon will start synchronizing with the network. This may take a long time to complete.

You can set the level of process detailization* through "set_log <level|categories>" command*,
where <level> is between 0 (no details) and 4 (very verbose), or custom category based levels (eg, *:WARNING)

Use the "help" command to see the list of available commands.
**********************************************************************

2017-09-24 16:38:45.052 [P2P0]  WARN    net.dns src/common/dns_utils.cpp:487    WARNING: no two valid MoneroPulse DNS checkpoint records were received
2017-09-24 16:38:45.268 [P2P2]  INFO    global  src/cryptonote_protocol/cryptonote_protocol_handler.inl:1543
**********************************************************************
You are now synchronized with the network. You may now start monero-wallet-cli.

Use the "help" command to see the list of available commands.
**********************************************************************
2017-09-24 16:38:57.525 [P2P2]  INFO    global  src/cryptonote_protocol/cryptonote_protocol_handler.inl:305 [155.94.243.152:18080 OUT] Sync data returned a new top block candidate: 1377819 -> 1406204 [Your node is 28385 blocks (39 days) behind]
SYNCHRONIZATION started
2017-09-24 16:39:27.850 [P2P8]  INFO    global  src/cryptonote_protocol/cryptonote_protocol_handler.inl:305 [94.130.48.154:36680 INC] Sync data returned a new top block candidate: 1377819 -> 1406205 [Your node is 28386 blocks (39 days) behind]
SYNCHRONIZATION started
2017-09-24 16:39:27.850 [P2P0]  INFO    global  src/cryptonote_protocol/cryptonote_protocol_handler.inl:305 [202.5.19.11:18080 OUT] Sync data returned a new top block candidate: 1377819 -> 1406205 [Your node is 28386 blocks (39 days) behind]
SYNCHRONIZATION started

Thread 17 "monerod" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ff785528700 (LWP 22700)]
__memcmp_sse4_1 () at ../sysdeps/x86_64/multiarch/memcmp-sse4.S:1525
1525    ../sysdeps/x86_64/multiarch/memcmp-sse4.S: No such file or directory.
(gdb)