Re: [PATCH] timekeeping: Limit system time to prevent 32-bit time_t overflow

From: Miroslav Lichvar
Date: Thu Oct 08 2015 - 05:39:30 EST


On Thu, Oct 08, 2015 at 10:52:05AM +0200, Arnd Bergmann wrote:
> On Thursday 08 October 2015 08:23:44 Miroslav Lichvar wrote:
> > The difference is that with the one-week step the kernel and userspace
> > still agree on the current time and it is always valid from the kernel
> > point of view, absolute timers can be set, etc.
>
> Ok, I can see that as an improvement, but it still seems to give
> a false sense of safety, and I feel we really should not have any code
> rely on this behavior.

Applications are not allowed to rely on system time being sane?
To me the current behavior looks like the kernel is throwing the
applications off a cliff, while it's the only thing that can fly :).

--
Miroslav Lichvar
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/