I am having 'issues' with MySQL running on Redhat Advanced Server
on a 8 Gigbyte machine (dual P4-Xeon).

After large imports ('load data infile', file size about 1 Gigbyte) into
a large table (20-30 GByte, > 100 Million rows), the database crashes.

I did try several key_buffer_size settings. The example below had the
key_buffer_size set to 6 Gig (but as you see, it shows -50MByte ?).
A key buffer size of a bit less then 4 Gig didn't help. I did try a couple
of other versions, including 4.0.4 and all of them crashed.

The machine is running only one mysql instance at the time. The main issue
I try to solve is how to optimize lookups against this one big table.
Its index alone is about 10-15 gig...
 
>From the log file:

-----------------------------

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 agaist 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=-50335744
record_buffer=209711104
sort_buffer=209715192
max_used_connections=2
max_connections=100
threads_connected=2
It is possible that mysqld could use up to 
key_buffer_size + (record_buffer + sort_buffer)*max_connections = 3161707 K
bytes of memory
Hope that's ok, if not, decrease some variables in the equation

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 range sanity check OK, backtrace follows:
0x806eeb4
0x82d9b38
0x830592f
0x80a194f
0x807598a
0x80742e7
Stack trace seems successful - bottom reached
Please read http://www.mysql.com/doc/U/s/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 (nil)  is invalid pointer
thd->thread_id=9


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