Re: Several tst-robust* tests time out with recent Linux kernel

[Edgecombe, Rick P]

On Tue, 2023-11-14 at 21:14 +0100, Peter Zijlstra wrote:
> Urgh, thanks!
> 
> Confirmed, the below cures things. Although I should probably make
> that
> FLAGS_SIZE_32 | FLAGS_SHARED against Linus' tree.
> 
> Let me go do a proper patch.

I saw these fail on the glibc shadow stack branch today, and I also saw
this one failing:
FAIL: nptl/tst-robustpi8

It spit out:
mutex_timedlock of 41 in thread 1 failed with 22
child did not die of a signal in round 1

After the fix here I saw the others pass, but still not tst-robustpi8.
Not sure if it is some shadow stack complication. I can try to dig in
tomorrow if the problem doesn't jump out.