Potential SIS or RTEMS/libbsd problem
Sebastian Huber
sebastian.huber at embedded-brains.de
Thu May 23 11:47:56 UTC 2019
On 22/05/2019 22:34, Jiri Gaisler wrote:
> Adding a pseudo-random delay of 0 - 15 clocks to each trap/interrupt causes the test to pass on all cpu configurations with the default time slice (50)..! I am not sure what this means - it could be a hidden race condition, the algorithm might need some jitter to work or it could still be a simulator issue.
Adding a pseudo-random delay to interrupts is probably not enough.
Sometimes the atomic instructions are carried out with interrupts
disabled. Would it be possible to add a pseudo-random delay to each of
the instruction cycles per core?
--
Sebastian Huber, embedded brains GmbH
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