070528 19:51:18 [Note] /home/sbester/server/5.0/mysql-5.0.44-linux-i686/bin/mysqld: ready for connections.
Version: '5.0.44-debug'  socket: '/tmp/mysql.sock'  port: 3306  yes
070528 19:51:25 - 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=8388572
read_buffer_size=131072
max_used_connections=1
max_connections=100
threads_connected=1
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 225788 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

thd=0x8c151a0
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...
Cannot determine thread, fp=0xbe5fe548, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
0x80e1875 handle_segfault + 529
0x83dd94d __pthread_sighandler + 173
0x8059ae7 _ZN10Item_field5printEP6String + 37
0x804aa3d _ZN13st_select_lex11print_orderEP6StringP8st_order + 109
0x8153941 _ZN13st_select_lex5printEP3THDP6String + 863
0x804a917 _ZN18st_select_lex_unit5printEP6String + 201
0x815344d _ZN13st_table_list5printEP3THDP6String + 417
0x81531a9 _Z10print_joinP3THDP6StringP4ListI13st_table_listE + 175
0x8153893 _ZN13st_select_lex5printEP3THDP6String + 689
0x804a917 _ZN18st_select_lex_unit5printEP6String + 201
0x80f8fbe _Z21mysql_execute_commandP3THD + 1534
0x810155e _Z11mysql_parseP3THDPKcjPS2_ + 348
0x80f74d8 _Z16dispatch_command19enum_server_commandP3THDPcj + 1956
0x80f6d29 _Z10do_commandP3THD + 529
0x80f5e2e handle_one_connection + 874
0x83d8821 pthread_start_thread + 225
0x843920a __clone + 106
New value of fp=(nil) failed sanity check, terminating stack trace!
Please read http://dev.mysql.com/doc/mysql/en/using-stack-trace.html and follow instructions on how to resolve the stack trace. Resolved
stack trace is much more helpful in diagnosing the problem, so please do 
resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at 0x8c29a08 = explain extended select * from (select c1 from t1 group by c1) as d1
thd->thread_id=1
The manual page at http://www.mysql.com/doc/en/Crashing.html contains
information that should help you find out what is causing the crash.