Troubleshooting with truss (HPUX) Part 2: The answer

February 4th at 12:00am

We finally found the root cause of our IPv6 issue. Our build machine was not building IPv6 support into the binary. APR_HAVE_IPV6 is set to 0 where every other platform we build on is set to 1. We found this by examining the source code (didn't need to build a test-app).

Here are the options we have to solve the problem:

Install IPv6 on the build machine (Requires purchasing an HP support contract)
Move the build box to another PA-RISC system running 11.23
Check with our customers: do they want IPv6 support on the oldest 11i release for PA?

Going through the truss exercise was a good experience. I'll be able to leverage it in future troubleshooting scenarios.

Previous: Troubleshooting with truss (HPUX) Part 1: Get Setup