From mboxrd@z Thu Jan 1 00:00:00 1970 From: jgunthorpe@obsidianresearch.com (Jason Gunthorpe) Date: Sat, 23 Sep 2017 19:30:56 -0600 Subject: On NTP, RTCs and accurately setting their time In-Reply-To: <20170923182324.GK20805@n2100.armlinux.org.uk> References: <20170921075907.GR20805@n2100.armlinux.org.uk> <20170921093218.GS20805@n2100.armlinux.org.uk> <20170921220510.GA11395@obsidianresearch.com> <20170921224541.GC20805@n2100.armlinux.org.uk> <20170921232040.GA15130@obsidianresearch.com> <20170922095713.GD20805@n2100.armlinux.org.uk> <20170922164850.GA13235@obsidianresearch.com> <20170922172022.GJ20805@n2100.armlinux.org.uk> <20170922182424.GA21945@obsidianresearch.com> <20170923182324.GK20805@n2100.armlinux.org.uk> Message-ID: <20170924013056.GA811@obsidianresearch.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Sep 23, 2017 at 07:23:24PM +0100, Russell King - ARM Linux wrote: > So we're getting it almost right - except for the sloppyness of the > workqueue being run (which is mostly dependent on the sloppiness of > the timer.) Looks really good. I made a note of your fix, but I probably will not be able to pick this up again until Friday. I think what is left to do: - Test on x86 with CMOS, using rtclib and update_persistent_clock. I may be able to put together a system for this, but I don't have anything ready to go right now that is not kvm based. :\ - Add patches in a series to set set_offset_nsec for RTCs we have learned about. - HR timer stuff, I'm inclined to put that in a dedicated patch in a series? Anything else? Thanks for your patience with my untested patches :\ Jason