Messages in this thread | | | Date | Fri, 28 Jul 2017 18:28:13 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 2/2] printk: Add boottime and real timestamps |
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On Fri, 28 Jul 2017, Prarit Bhargava wrote: > On 07/25/2017 09:00 AM, Peter Zijlstra wrote: > Thanks for the above change. I can see that makes the code simpler. > > > Although I must strongly discourage using REALTIME, DST will make > > untangling your logs an absolute nightmare. I would simply not provide > > it. > > I understand your concern, however, I've been in situations where REALTIME > stamping has pointed me in the direction of where a bug was. Even with the > complicated logs I think it is worthwhile.
As Mark pointed out. ktime_get_real() and the fast variant return UTC. The timezone mess plus the DST nonsense are done in user space.
Thanks,
tglx
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