[LTP] [PATCH v4 0/4] New Fuzzy Sync library API

Cyril Hrubis chrubis@suse.cz
Tue Nov 20 14:09:11 CET 2018

> Interesting that it is so slow on an x86 system, but it also makes sense
> with a single core because these are all multi-threaded tests. If the
> kernel is completely preemptive then it may be theoretically possible to
> trigger one of these bugs on a single core, but most people seem to
> think the probability of it happening is lower than on a multi-core
> machine.
> I am tempted to simply exit the test with TCONF if it is a single core
> system. If we do allow them to run on a single core then we have to test
> that they work reasonably well on single cores (given enough
> time). Which I just don't think is worth doing based on the times you
> have given.

Well some of these test still trigger kernel crashes on single CPU
300Mhz arm quite reliably. If anything we may want to disable some
subset on slow single CPUs, but then someone would have to do the
selection which is probably not worth of the trouble.

Cyril Hrubis

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