Program terminated by SIGTRAP in gdb

[Albert Fu]

>   What does the command below produce:
>    nm /lib/libpthread.so.0 | egrep '_version|threads_events'
I typed the command and it produced:

0001da70 g __linuxthreads_version
0001da9c s __pthread_threads_events

> This may happen if you build your own glibc, but don't install
> all the pieces of it.
I use all the software from the same Linux release.

Is there any document which describes what gdb can do or can't do
when debugging a multi-threaded program?

Subject:"gdb and multi-threaded (NPTL) programs"
There were some discussions back in March 24, 2006 mentioned
that GDB changes the behavior of a multi-threaded program.
Is there any changes in GDB since then?