Computer halted. After restart mongodb cannot start and fails with exception:

$ /usr/bin/mongod -vvvv --config /home/blh/mongodb.conf
all output going to: /var/log/blh/mongodb.log
Fri Jul 27 12:16:42 terminate() called, printing stack:
0x56de53 0x88fa3a 0x7f4978c36846 0x7f4978c36873 0x7f4978c3696e 0x577399 0x7b2a0b 0x526588 0x7f4977a3576d 0x529611
/usr/bin/mongod(_ZN5mongo15printStackTraceERSo+0x23) [0x56de53]
/usr/bin/mongod(_ZN5mongo11myterminateEv+0x3a) [0x88fa3a]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb5846) [0x7f4978c36846]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb5873) [0x7f4978c36873]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb596e) [0x7f4978c3696e]
/usr/bin/mongod(_ZN5mongo11initLoggingERKSsb+0x549) [0x577399]
/usr/bin/mongod(_ZN5mongo7CmdLine5storeEiPPcRN5boost15program_options19options_descriptionES6_RNS4_30positional_options_descriptionERNS4_13variables_mapE+0xa8b) [0x7b2a0b]
/usr/bin/mongod(main+0xd58) [0x526588]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f4977a3576d]
/usr/bin/mongod() [0x529611]
Fri Jul 27 12:16:42 Got signal: 6 (Aborted).

Fri Jul 27 12:16:42 Backtrace:
0x56de53 0x8906ac 0x7f4977a4a4c0 0x7f4977a4a445 0x7f4977a4dbab 0x88fa3f 0x7f4978c36846 0x7f4978c36873 0x7f4978c3696e 0x577399 0x7b2a0b 0x526588 0x7f4977a3576d 0x529611
/usr/bin/mongod(_ZN5mongo15printStackTraceERSo+0x23) [0x56de53]
/usr/bin/mongod(_ZN5mongo10abruptQuitEi+0x34c) [0x8906ac]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f4977a4a4c0]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x35) [0x7f4977a4a445]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x17b) [0x7f4977a4dbab]
/usr/bin/mongod(_ZN5mongo11myterminateEv+0x3f) [0x88fa3f]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb5846) [0x7f4978c36846]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb5873) [0x7f4978c36873]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb596e) [0x7f4978c3696e]
/usr/bin/mongod(_ZN5mongo11initLoggingERKSsb+0x549) [0x577399]
/usr/bin/mongod(_ZN5mongo7CmdLine5storeEiPPcRN5boost15program_options19options_descriptionES6_RNS4_30positional_options_descriptionERNS4_13variables_mapE+0xa8b) [0x7b2a0b]
/usr/bin/mongod(main+0xd58) [0x526588]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f4977a3576d]
/usr/bin/mongod() [0x529611]

Database is valuable, so I can provide it upon request.