I haven't investigated this further, but it worked to ktrace -p <pid-of-sh> and revealed openat() as the culprit. It's detected by autoconf on the -6 chroot on -8 while -6 doesn't implement it.
- debugging/tracing a setuid program Edgar Fuß
- Re: debugging/tracing a setuid program Mouse
- Re: debugging/tracing a setuid program Edgar Fuß
- Re: debugging/tracing a setuid program Mouse
- Re: debugging/tracing a setuid program Edgar Fuß
- Re: debugging/tracing a setuid prog... Emmanuel Dreyfus
- Re: debugging/tracing a setuid prog... Mouse
- Re: debugging/tracing a setuid ... Edgar Fuß