The OS is AIX 4.2.1. The test machine is wildaix.mcom.com. The NSPR release is 3.1.1. The servr_kk, servr_ku, and servr_uk tests, optimized build, sometimes hang on AIX 4.2.1. The debug build does not have this problem. This bug may be related to bug #5785: The servr_ku, servr_kk, servr_uk tests hang on some HP-UX 11.
Didn't have time to track this down for NSPR 4.1.
Can this bug be closed now? I don't imagine anyone is still targeting AIX 4.2.1.
Marked the bug WONTFIX.