Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Con Kolivas
On Friday 02 March 2007 00:30, Ingo Molnar wrote: > * Con Kolivas <[EMAIL PROTECTED]> wrote: > > [...] Even though I'm finding myself defending code that has already > > been softly tagged for redundancy, let's be clear here; we're talking > > about at most a further 70ms delay in scheduling a

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Ingo Molnar
* Con Kolivas <[EMAIL PROTECTED]> wrote: > [...] Even though I'm finding myself defending code that has already > been softly tagged for redundancy, let's be clear here; we're talking > about at most a further 70ms delay in scheduling a niced task in the > presence of a nice 0 task, which is

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Thomas Gleixner
On Thu, 2007-03-01 at 23:05 +1100, Con Kolivas wrote: > > > And that's the depressing part because of course I was interested in that > > > as the original approach to the problem (and it was a big problem). When > > > I spoke to Intel and AMD (of course to date no SMT AMD chip exists) at > > >

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Con Kolivas
On Thursday 01 March 2007 22:33, Thomas Gleixner wrote: > On Thu, 2007-03-01 at 22:13 +1100, Con Kolivas wrote: > > > if then there should be a mechanism /in the hardware/ to set the > > > priority of a CPU - and then the hardware could decide how to > > > prioritize between siblings. Doing this

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Thomas Gleixner
On Thu, 2007-03-01 at 22:13 +1100, Con Kolivas wrote: > > if then there should be a mechanism /in the hardware/ to set the > > priority of a CPU - and then the hardware could decide how to prioritize > > between siblings. Doing this in software is really hard. > > And that's the depressing part

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Con Kolivas
On Thursday 01 March 2007 19:46, Ingo Molnar wrote: > * Mike Galbraith <[EMAIL PROTECTED]> wrote: > > I see no real difference between the two assertions. Nice is just a > > mechanism to set priority, so I applied your assertion to a different > > range of priorities than nice covers, and

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Ingo Molnar
* Mike Galbraith <[EMAIL PROTECTED]> wrote: > I see no real difference between the two assertions. Nice is just a > mechanism to set priority, so I applied your assertion to a different > range of priorities than nice covers, and returned it to show that the > code contradicts itself. It

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Ingo Molnar
* Mike Galbraith [EMAIL PROTECTED] wrote: I see no real difference between the two assertions. Nice is just a mechanism to set priority, so I applied your assertion to a different range of priorities than nice covers, and returned it to show that the code contradicts itself. It can't be

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Con Kolivas
On Thursday 01 March 2007 19:46, Ingo Molnar wrote: * Mike Galbraith [EMAIL PROTECTED] wrote: I see no real difference between the two assertions. Nice is just a mechanism to set priority, so I applied your assertion to a different range of priorities than nice covers, and returned it to

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Thomas Gleixner
On Thu, 2007-03-01 at 22:13 +1100, Con Kolivas wrote: if then there should be a mechanism /in the hardware/ to set the priority of a CPU - and then the hardware could decide how to prioritize between siblings. Doing this in software is really hard. And that's the depressing part because

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Con Kolivas
On Thursday 01 March 2007 22:33, Thomas Gleixner wrote: On Thu, 2007-03-01 at 22:13 +1100, Con Kolivas wrote: if then there should be a mechanism /in the hardware/ to set the priority of a CPU - and then the hardware could decide how to prioritize between siblings. Doing this in software

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Thomas Gleixner
On Thu, 2007-03-01 at 23:05 +1100, Con Kolivas wrote: And that's the depressing part because of course I was interested in that as the original approach to the problem (and it was a big problem). When I spoke to Intel and AMD (of course to date no SMT AMD chip exists) at kernel summit

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Ingo Molnar
* Con Kolivas [EMAIL PROTECTED] wrote: [...] Even though I'm finding myself defending code that has already been softly tagged for redundancy, let's be clear here; we're talking about at most a further 70ms delay in scheduling a niced task in the presence of a nice 0 task, which is a

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-03-01 Thread Con Kolivas
On Friday 02 March 2007 00:30, Ingo Molnar wrote: * Con Kolivas [EMAIL PROTECTED] wrote: [...] Even though I'm finding myself defending code that has already been softly tagged for redundancy, let's be clear here; we're talking about at most a further 70ms delay in scheduling a niced task

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-28 Thread Mike Galbraith
On Thu, 2007-03-01 at 09:01 +1100, Con Kolivas wrote: > On Wednesday 28 February 2007 15:21, Mike Galbraith wrote: > > On Wed, 2007-02-28 at 09:58 +1100, Con Kolivas wrote: > > > On Tuesday 27 February 2007 19:54, Mike Galbraith wrote: > > > > Agreed. > > > > > > > > I was recently looking at

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-28 Thread Con Kolivas
On Wednesday 28 February 2007 15:21, Mike Galbraith wrote: > (hrmph. having to copy/paste/try again. evolution seems to be broken.. > RCPT TO <[EMAIL PROTECTED]> failed: Cannot resolve your domain > {mp049} ..caused me to be unable to send despite receipts being disabled) Apologies for mangling

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-28 Thread Con Kolivas
On Wednesday 28 February 2007 15:21, Mike Galbraith wrote: (hrmph. having to copy/paste/try again. evolution seems to be broken.. RCPT TO [EMAIL PROTECTED] failed: Cannot resolve your domain {mp049} ..caused me to be unable to send despite receipts being disabled) Apologies for mangling the

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-28 Thread Mike Galbraith
On Thu, 2007-03-01 at 09:01 +1100, Con Kolivas wrote: On Wednesday 28 February 2007 15:21, Mike Galbraith wrote: On Wed, 2007-02-28 at 09:58 +1100, Con Kolivas wrote: On Tuesday 27 February 2007 19:54, Mike Galbraith wrote: Agreed. I was recently looking at that spot because I

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Mike Galbraith
(hrmph. having to copy/paste/try again. evolution seems to be broken.. RCPT TO <[EMAIL PROTECTED]> failed: Cannot resolve your domain {mp049} ..caused me to be unable to send despite receipts being disabled) On Wed, 2007-02-28 at 09:58 +1100, Con Kolivas wrote: > On Tuesday 27 February 2007

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Con Kolivas
Apologies for the resend, lkml address got mangled... On Tuesday 27 February 2007 19:54, Mike Galbraith wrote: > On Tue, 2007-02-27 at 09:33 +0100, Ingo Molnar wrote: > > * Michal Piotrowski <[EMAIL PROTECTED]> wrote: > > > Thomas Gleixner napisał(a): > > > > Adrian, > > > > > > > > On Mon,

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Mike Galbraith
On Tue, 2007-02-27 at 09:33 +0100, Ingo Molnar wrote: > * Michal Piotrowski <[EMAIL PROTECTED]> wrote: > > > Thomas Gleixner napisał(a): > > > Adrian, > > > > > > On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: > > >> Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ)

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Ingo Molnar
* Michal Piotrowski <[EMAIL PROTECTED]> wrote: > Thomas Gleixner napisał(a): > > Adrian, > > > > On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: > >> Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) > >> References : http://lkml.org/lkml/2007/2/16/346 > >> Submitter

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Michal Piotrowski
Michal Piotrowski napisał(a): > Thomas Gleixner napisał(a): >> Adrian, >> >> On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: >>> Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) >>> References : http://lkml.org/lkml/2007/2/16/346 >>> Submitter : Michal Piotrowski

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Michal Piotrowski
Thomas Gleixner napisał(a): > Adrian, > > On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: >> Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) >> References : http://lkml.org/lkml/2007/2/16/346 >> Submitter : Michal Piotrowski <[EMAIL PROTECTED]> >> Handled-By :

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Thomas Gleixner
Adrian, On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: > Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) > References : http://lkml.org/lkml/2007/2/16/346 > Submitter : Michal Piotrowski <[EMAIL PROTECTED]> > Handled-By : Thomas Gleixner <[EMAIL PROTECTED]> >

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Thomas Gleixner
Adrian, On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) References : http://lkml.org/lkml/2007/2/16/346 Submitter : Michal Piotrowski [EMAIL PROTECTED] Handled-By : Thomas Gleixner [EMAIL PROTECTED] Status :

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Michal Piotrowski
Thomas Gleixner napisał(a): Adrian, On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) References : http://lkml.org/lkml/2007/2/16/346 Submitter : Michal Piotrowski [EMAIL PROTECTED] Handled-By : Thomas Gleixner

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Michal Piotrowski
Michal Piotrowski napisał(a): Thomas Gleixner napisał(a): Adrian, On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) References : http://lkml.org/lkml/2007/2/16/346 Submitter : Michal Piotrowski [EMAIL PROTECTED]

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Ingo Molnar
* Michal Piotrowski [EMAIL PROTECTED] wrote: Thomas Gleixner napisał(a): Adrian, On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) References : http://lkml.org/lkml/2007/2/16/346 Submitter : Michal

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Mike Galbraith
On Tue, 2007-02-27 at 09:33 +0100, Ingo Molnar wrote: * Michal Piotrowski [EMAIL PROTECTED] wrote: Thomas Gleixner napisał(a): Adrian, On Mon, 2007-02-26 at 23:05 +0100, Adrian Bunk wrote: Subject: kernel BUG at kernel/time/tick-sched.c:168 (CONFIG_NO_HZ) References :

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Con Kolivas
Apologies for the resend, lkml address got mangled... On Tuesday 27 February 2007 19:54, Mike Galbraith wrote: On Tue, 2007-02-27 at 09:33 +0100, Ingo Molnar wrote: * Michal Piotrowski [EMAIL PROTECTED] wrote: Thomas Gleixner napisał(a): Adrian, On Mon, 2007-02-26 at 23:05

Re: 2.6.21-rc1: known regressions (v2) (part 2)

2007-02-27 Thread Mike Galbraith
(hrmph. having to copy/paste/try again. evolution seems to be broken.. RCPT TO [EMAIL PROTECTED] failed: Cannot resolve your domain {mp049} ..caused me to be unable to send despite receipts being disabled) On Wed, 2007-02-28 at 09:58 +1100, Con Kolivas wrote: On Tuesday 27 February 2007 19:54,

2.6.21-rc1: known regressions (v2) (part 2)

2007-02-26 Thread Adrian Bunk
This email lists some known regressions in 2.6.21-rc1 compared to 2.6.20 that are not yet fixed in Linus' tree. If you find your name in the Cc header, you are either submitter of one of the bugs, maintainer of an affectected subsystem or driver, a patch of you caused a breakage or I'm

2.6.21-rc1: known regressions (v2) (part 2)

2007-02-26 Thread Adrian Bunk
This email lists some known regressions in 2.6.21-rc1 compared to 2.6.20 that are not yet fixed in Linus' tree. If you find your name in the Cc header, you are either submitter of one of the bugs, maintainer of an affectected subsystem or driver, a patch of you caused a breakage or I'm