110929 18:02:59 - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.

key_buffer_size=33554432
read_buffer_size=2097152
max_used_connections=576
max_threads=575
thread_count=145
connection_count=145
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 5927313 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x7fa284d0d8e0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0x7fa283d1fe80 thread_stack 0x30000
/system/mysql/bin/mysqld(my_print_stacktrace+0x39)[0x795f29]
/system/mysql/bin/mysqld(handle_segfault+0x380)[0x4fce00]
/lib/libpthread.so.0(+0xef60)[0x7fb638854f60]
/system/mysql/bin/mysqld(_ZN5Field10make_fieldEP10Send_field+0x19)[0x64dea9]
/system/mysql/bin/mysqld(_ZN10Item_field10make_fieldEP10Send_field+0x26)[0x670be6]
/system/mysql/bin/mysqld(_ZN8Protocol24send_result_set_metadataEP4ListI4ItemEj+0x10b)[0x50c34b]
/system/mysql/bin/mysqld(_ZN11select_send24send_result_set_metadataER4ListI4ItemEj+0x1d)[0x5474fd]
/system/mysql/bin/mysqld(_ZN28Select_fetch_protocol_binary24send_result_set_metadataER4ListI4ItemEj+0x2e)[0x58431e]
/system/mysql/bin/mysqld(_ZN19Materialized_cursor4openEP4JOIN+0x103)[0x74dd73]
/system/mysql/bin/mysqld(_Z17mysql_open_cursorP3THDP13select_resultPP18Server_side_cursor+0x188)[0x74e558]
/system/mysql/bin/mysqld(_ZN18Prepared_statement7executeEP6Stringb+0x1e0)[0x584b00]
/system/mysql/bin/mysqld(_ZN18Prepared_statement12execute_loopEP6StringbPhS2_+0x7c)[0x587a2c]
/system/mysql/bin/mysqld(_Z19mysqld_stmt_executeP3THDPcj+0x175)[0x587fb5]
/system/mysql/bin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0xc71)[0x578ea1]
/system/mysql/bin/mysqld(_Z24do_handle_one_connectionP3THD+0x337)[0x60d077]
/system/mysql/bin/mysqld(handle_one_connection+0x54)[0x60d0e4]
/lib/libpthread.so.0(+0x68ba)[0x7fb63884c8ba]
/lib/libc.so.6(clone+0x6d)[0x7fb637aee02d]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0x98a8b478): SHOW DATABASES
Connection ID (thread ID): 284732004
Status: NOT_KILLED

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
110929 18:03:02 mysqld_safe Number of processes running now: 0
110929 18:03:02 mysqld_safe mysqld restarted