As you may recall, I've been playing with apache httpd 2.2.0.
I was also looking at Derek Crudgington's comparison of Apache and Sun Webserver. So I decided to just test out Apache 1.3.34 against 2.2.0, and also going through to tomcat which was generating dynamic pages from mysql.
To cut a long story short, testing Apache 2.2.0 paniced my machine. I wasn't able to do too much damage with 1.3.34, but under stress 2.2.0 became rather sluggish, and then it and the whole machine became completely unresponsive.
Of course, it's not apache's fault. It shouldn't be capable of taking the box out. This is definitely something in Solaris that's gone awry.
A quick search of sunsolve didn't show a match, but for the enthusiast here's the (trimmed) message:
Dec 6 11:32:28 ratbert genunix: fffffe8001773b80 unix:die+da (fffffe8001773c20, 1fb955d3a)
Dec 6 11:32:28 ratbert genunix: fffffe8001773c60 unix:trap+5ea ()
Dec 6 11:32:28 ratbert genunix: fffffe8001773c70 unix:cmntrap+11b ()
Dec 6 11:32:28 ratbert genunix: fffffe8001773d70 genunix:list_remove+b ()
Dec 6 11:32:28 ratbert genunix: fffffe8001773da0 genunix:port_remove_done_event+4b ()
Dec 6 11:32:28 ratbert genunix: fffffe8001773e10 portfs:port_associate_fd+2b8 ()
Dec 6 11:32:28 ratbert genunix: fffffe8001773ec0 portfs:portfs+303 ()
Dec 6 11:32:28 ratbert genunix: fffffe8001773ed0 portfs:portfs32+24 ()