Re: kern.boottime drift after boot?

2023-10-11 Thread Mouse
>> On embedded systems without an RTC, you _could_ get the same UUID in >> rare cases. But I think this would be a bug, because on Linux, any >> kind of jitter-source (interrupt timing, for instance) would perturb >> the generated UUID. > Hopefully! Even though this jitter might not be high entr

Re: kern.boottime drift after boot?

2023-10-11 Thread Simon Burge
RVP wrote: > On Wed, 11 Oct 2023, Simon Burge wrote: > > > RVP wrote: > > > >> I think what David's looking for is something akin to Linux's > >> > >> /proc/sys/kernel/random/boot_id > >> > >> something which only changes on every boot but is otherwise stable. > > > > I'm curious how well this boo

Re: kern.boottime drift after boot?

2023-10-11 Thread RVP
On Wed, 11 Oct 2023, Simon Burge wrote: RVP wrote: I think what David's looking for is something akin to Linux's /proc/sys/kernel/random/boot_id something which only changes on every boot but is otherwise stable. I'm curious how well this boot_id works on Linux for things like a embedded s