HP-UX 11.00 is fine, 10.20 is coring. Making with CLASSIC_NSPR=1 from 12-8-99 build viewer crashes pthread_mutex_lock() <- PR_lock() <- js_LockRuntime <- js_NewContext() mozilla-bin sometimes crashes, sometimes sits in those "infinite" loops that shouldn't be there if NSPR was built correctly. Rebuilding to double-check

I suspect that you have a mixture of .o files from USE_PTHREADS=1 and CLASSIC_NSPR=1 builds. In a CLASSIC_NSPR=1 build, pthread functions such as pthread_mutex_lock are not referenced.

Need to build NSPR with NSPR_THREADS MOZILLA_CLIENT=1 gmake CLASSIC_NSPR=1 Since we are building and running on 10.20 I am going to close this.