PIE breaks detection of available stack depth with getrlimit?

[John Reiser]

> fail, at least when running a 32-bit build in mock under a 64-bit
> kernel.  The cause appears to be that getrlimit(RLIMIT_STACK) reports
> an inflated value for the process's available stack space.

If you can write a short program that demonstrates the failure,
say by comparing getrlimit(RLIMIT_STACK) to the results of
an internal "cat /proc/self/maps", then that's a kernel bug.

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