Re: [patch] Re: x86-tip tsc/tick gripage

2017-04-28 Thread Mike Galbraith
On Fri, 2017-04-28 at 10:45 +0200, Mike Galbraith wrote: > Bah, nevermind. I forgot to restore command line. Well how 'bout that, it's not only old multi-socket boxen. I just reproduced on my i4790 desktop box. Boot virgin tip to init 3 with nowatchdog on command line, let box idle... [ 316.

Re: [patch] Re: x86-tip tsc/tick gripage

2017-04-28 Thread Mike Galbraith
> On Fri, 2017-04-28 at 09:35 +0200, Mike Galbraith wrote: > ...which makes my DL980 a happy camper with tip. Bah, nevermind. I forgot to restore command line.

[patch] Re: x86-tip tsc/tick gripage

2017-04-28 Thread Mike Galbraith
On Wed, 2017-04-26 at 13:39 +0200, Mike Galbraith wrote: > On Wed, 2017-04-26 at 12:26 +0200, Peter Zijlstra wrote: > > On Wed, Apr 26, 2017 at 10:57:42AM +0200, Mike Galbraith wrote: > > > > > Both still lose their TSC. > > > > > > [ 11.982468] tsc: Refined TSC clocksource calibration: 2260.99

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 14:30 +0200, Mike Galbraith wrote: > On Wed, 2017-04-26 at 13:39 +0200, Mike Galbraith wrote: > > On Wed, 2017-04-26 at 12:26 +0200, Peter Zijlstra wrote: > > > On Wed, Apr 26, 2017 at 10:57:42AM +0200, Mike Galbraith wrote: > > > > > > > Both still lose their TSC. > > > > >

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 14:30 +0200, Mike Galbraith wrote: > On Wed, 2017-04-26 at 13:39 +0200, Mike Galbraith wrote: > > On Wed, 2017-04-26 at 12:26 +0200, Peter Zijlstra wrote: > > > On Wed, Apr 26, 2017 at 10:57:42AM +0200, Mike Galbraith wrote: > > > > > > > Both still lose their TSC. > > > > >

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 13:39 +0200, Mike Galbraith wrote: > On Wed, 2017-04-26 at 12:26 +0200, Peter Zijlstra wrote: > > On Wed, Apr 26, 2017 at 10:57:42AM +0200, Mike Galbraith wrote: > > > > > Both still lose their TSC. > > > > > > [ 11.982468] tsc: Refined TSC clocksource calibration: 2260.99

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 12:26 +0200, Peter Zijlstra wrote: > On Wed, Apr 26, 2017 at 10:57:42AM +0200, Mike Galbraith wrote: > > > Both still lose their TSC. > > > > [ 11.982468] tsc: Refined TSC clocksource calibration: 2260.999 MHz > > [ 11.994275] clocksource: tsc: mask: 0x m

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Peter Zijlstra
On Wed, Apr 26, 2017 at 10:57:42AM +0200, Mike Galbraith wrote: > Both still lose their TSC. > > [ 11.982468] tsc: Refined TSC clocksource calibration: 2260.999 MHz > [ 11.994275] clocksource: tsc: mask: 0x max_cycles: > 0x20974a4d8bb, max_idle_ns: 440795246623 ns > [ 13.06

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 10:57 +0200, Mike Galbraith wrote: > On Wed, 2017-04-26 at 10:31 +0200, Mike Galbraith wrote: > > On Wed, 2017-04-26 at 10:21 +0200, Ingo Molnar wrote: > > > > > I have temporarily removed the current timers/urgent lineup from -tip: > > > > > > 098991fccfc7: nohz: Print mor

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 10:31 +0200, Mike Galbraith wrote: > On Wed, 2017-04-26 at 10:21 +0200, Ingo Molnar wrote: > > > I have temporarily removed the current timers/urgent lineup from -tip: > > > > 098991fccfc7: nohz: Print more debug info in tick_nohz_stop_sched_tick() > > 22aa2ad45fd8: tick:

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 10:21 +0200, Ingo Molnar wrote: > I have temporarily removed the current timers/urgent lineup from -tip: > > 098991fccfc7: nohz: Print more debug info in tick_nohz_stop_sched_tick() > 22aa2ad45fd8: tick: Make sure tick timer is active when bypassing > reprogramming > d58

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Ingo Molnar
* Mike Galbraith wrote: > On Wed, 2017-04-26 at 10:02 +0200, Mike Galbraith wrote: > > > tip v4.11-rc8-893-g8ec9e12aff06, trusty ole 8 socket (X7560) DL980 G7 > > Ew, DL980 then turned into unhappy RCU camper. > > [ 316.980923] basemono: 31695600 ts->next_tick: 31638000 > dev->next_

Re: x86-tip tsc/tick gripage

2017-04-26 Thread Mike Galbraith
On Wed, 2017-04-26 at 10:02 +0200, Mike Galbraith wrote: > tip v4.11-rc8-893-g8ec9e12aff06, trusty ole 8 socket (X7560) DL980 G7 Ew, DL980 then turned into unhappy RCU camper. [ 316.980923] basemono: 31695600 ts->next_tick: 31638000 dev->next_event: 316956005002 [ 689.893122] INFO: rc