thanks for your input.
> This does look like some really strange thread library problem. Can you try the
> * link statically
This did not help.
> * update your libc
It seems that libc_r was last updated in April, so mine should be up to date.
> if the above does not help, can you write a program that can be run outside of
> the context of your system that will hang mysqld on your system?
The problem is, the hangs occur in different places. They are caused by web
indexing software (htdig) which accesses mysqld thru apache mod_php (3.0.17)
compiled with mysql support. Since it runs on the same host, it just probably
overloads mysql (or the thread lib ?). So a web site making intensive use of
mysql database + htdig would be the appropriate setup for testing.
Anyway, I posted a question to freebsd-bugs and will inform the list of the