I get a segfault with PHP 5.2.0RC2 in
CLI mode (Apache module seems to work)
and APC 3.0.11 (without APC it works
fine). Is this a known problem (maybe
even fixed in CVS) or is it worth
investigating?
Yes, it's a known problem.
http://blog.libssh2.org/index.php?/archives/20-Doctor!-Doctor!-It-hurts-when-I-do-this!.html
But it's an EXTREMELY edge case one. (Only happens with ZTS enabled, in CLI mode, with enable_cli *not* turned on).
I came across this some time ago when mixing Runkit_Sandbox with APC, just turn on enable_cli. It won't materially impact your command line experience.
-Sara