libbsd select timeout issue(critial!!)

[Sebastian Huber]

On 11/11/2020 03:50, RUI Zhengxin wrote:

> This issue is very critial, it can make the select abnormally return 
> timeout after long run time.
> If the timeout is set to 5ms,  when the system run after 70000s(19.4h),
> the select function will wait 10ms timeout, which is two times of 
> setting value.
>
>
> This issue is created by calculating timeout watchdog expire tick 
> using the absolute time since libbsd5 version.

Yes, the calculation of the absolute timeout is broken. Could you please 
add a bug report:

https://docs.rtems.org/branches/master/user/support/bugs.html

It would be nice if you could create a patch which fixes the bug.

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