Re: [tip:core/printk] printk: Add monotonic, boottime, and realtime timestamps

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On Tue, 26 Sep 2017, Prarit Bhargava wrote:

> On 09/26/2017 04:42 AM, tip-bot for Prarit Bhargava wrote:
> > Commit-ID:  310b454a8653ea60d3eb21ce5ab03a282a32fbe1
> > Gitweb:     http://git.kernel.org/tip/310b454a8653ea60d3eb21ce5ab03a282a32fbe1
> > Author:     Prarit Bhargava <prarit@xxxxxxxxxx>
> > AuthorDate: Mon, 18 Sep 2017 13:51:00 -0400
> > Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > CommitDate: Tue, 26 Sep 2017 10:38:07 +0200
> > 
> > printk: Add monotonic, boottime, and realtime timestamps
> > 
> > printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmodified local hardware clock
> > timestamp to printk messages.  The local hardware clock loses time each
> > day making it difficult to determine exactly when an issue has occurred in
> > the kernel log, and making it difficult to determine how kernel and
> > hardware issues relate to each other.
> > 
> > Make printk output different timestamps by adding options for no timestamp,
> > the local hardware clock, monotonic clock, boottime clock, and clock
> > realtime. The default clock can be selected via:
> > 
> >  - Kconfig
> >  - Kernel command line parameter
> >  - Sysfs file
> > 
> > Note, that existing user space tools might be confused by selecting clock
> > realtime, so handle with care.
> 
> pmladek found a compile warning due to printk_time being unused.  I will post a
> v14 on LKML shortly.

Errm. I applied v12. where the heck is v13?

And in the applied patch printk_time is used.....

Thanks,

	tglx

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