Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-12 Thread Pavel Machek
On Sun 2014-05-11 20:48:08, Borislav Petkov wrote: > On Sun, May 11, 2014 at 08:29:30PM +0200, Thomas Gleixner wrote: > > On Sun, 11 May 2014, Pavel Machek wrote: > > > Well. If you add the delay, you'll mask real problems and cause > > > regressions when > > > the delay is removed -- because fix-

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-11 Thread Borislav Petkov
On Sun, May 11, 2014 at 08:29:30PM +0200, Thomas Gleixner wrote: > On Sun, 11 May 2014, Pavel Machek wrote: > > Well. If you add the delay, you'll mask real problems and cause regressions > > when > > the delay is removed -- because fix-hotplug will probably take time to get > > right. > > > > B

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-11 Thread Thomas Gleixner
On Sun, 11 May 2014, Pavel Machek wrote: > Well. If you add the delay, you'll mask real problems and cause regressions > when > the delay is removed -- because fix-hotplug will probably take time to get > right. > > Bad idea, AFAICT. Agreed, but Boris is right, that the current duct tape hacker

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-11 Thread Pavel Machek
On Wed 2014-05-07 22:26:55, Borislav Petkov wrote: > On Wed, May 07, 2014 at 10:22:33PM +0200, Thomas Gleixner wrote: > > On Wed, 7 May 2014, Andrew Morton wrote: > > > On Wed, 7 May 2014 21:57:41 +0200 Borislav Petkov wrote: > > > > > > > We have all those eager tester dudes which scratch up a

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-07 Thread Srivatsa S. Bhat
On 05/08/2014 01:52 AM, Thomas Gleixner wrote: > On Wed, 7 May 2014, Andrew Morton wrote: >> On Wed, 7 May 2014 21:57:41 +0200 Borislav Petkov wrote: >> >>> We have all those eager tester dudes which scratch up a dirty script to >>> pound on CPU hotplug senselessly and then report bugs they've ma

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-07 Thread Borislav Petkov
On Wed, May 07, 2014 at 10:22:33PM +0200, Thomas Gleixner wrote: > On Wed, 7 May 2014, Andrew Morton wrote: > > On Wed, 7 May 2014 21:57:41 +0200 Borislav Petkov wrote: > > > > > We have all those eager tester dudes which scratch up a dirty script to > > > pound on CPU hotplug senselessly and th

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-07 Thread Thomas Gleixner
On Wed, 7 May 2014, Andrew Morton wrote: > On Wed, 7 May 2014 21:57:41 +0200 Borislav Petkov wrote: > > > We have all those eager tester dudes which scratch up a dirty script to > > pound on CPU hotplug senselessly and then report bugs they've managed to > > trigger. > > > > Well, first of all,

Re: [PATCH] CPU hotplug: Slow down hotplug operations

2014-05-07 Thread Andrew Morton
On Wed, 7 May 2014 21:57:41 +0200 Borislav Petkov wrote: > We have all those eager tester dudes which scratch up a dirty script to > pound on CPU hotplug senselessly and then report bugs they've managed to > trigger. > > Well, first of all, most, if not all, bugs they trigger are CPU hotplug >

[PATCH] CPU hotplug: Slow down hotplug operations

2014-05-07 Thread Borislav Petkov
From: Borislav Petkov We have all those eager tester dudes which scratch up a dirty script to pound on CPU hotplug senselessly and then report bugs they've managed to trigger. Well, first of all, most, if not all, bugs they trigger are CPU hotplug related anyway. But we know hotplug is full of d