* Re: [GIT PULL] timers/nohz updates for v3.18 [not found] <20141009064813.GA20517@gmail.com> @ 2014-10-09 10:34 ` Linus Torvalds 2014-10-09 12:57 ` Frederic Weisbecker 0 siblings, 1 reply; 5+ messages in thread From: Linus Torvalds @ 2014-10-09 10:34 UTC (permalink / raw) To: Ingo Molnar, stable Cc: Linux Kernel Mailing List, Thomas Gleixner, Frédéric Weisbecker, Peter Zijlstra, Andrew Morton Hmm.. On Thu, Oct 9, 2014 at 2:48 AM, Ingo Molnar <mingo@kernel.org> wrote: > > Please pull the latest timers-nohz-for-linus git tree from: > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus > > # HEAD: 9b01f5bf3999a3db5b1bbd9fdfd80d8d304e94ee nohz: nohz full depends on irq work self IPI support > > Main changes: > > - Fix the deadlock reported by Dave Jones et al > - Clean up and fix nohz_full interaction with arch abilities > - nohz init code consolidation/cleanup Ok, pulled. But none of these are marked for stable, yet the deadlock people are seeing is in 3.17. Is there a separate line of minimal fixes just for that? Or was the lack of stable tags just an oversight? Linus ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] timers/nohz updates for v3.18 2014-10-09 10:34 ` [GIT PULL] timers/nohz updates for v3.18 Linus Torvalds @ 2014-10-09 12:57 ` Frederic Weisbecker 2014-10-09 13:50 ` Greg KH 0 siblings, 1 reply; 5+ messages in thread From: Frederic Weisbecker @ 2014-10-09 12:57 UTC (permalink / raw) To: Linus Torvalds Cc: Ingo Molnar, stable, Linux Kernel Mailing List, Thomas Gleixner, Peter Zijlstra, Andrew Morton On Thu, Oct 09, 2014 at 06:34:26AM -0400, Linus Torvalds wrote: > Hmm.. > > On Thu, Oct 9, 2014 at 2:48 AM, Ingo Molnar <mingo@kernel.org> wrote: > > > > Please pull the latest timers-nohz-for-linus git tree from: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus > > > > # HEAD: 9b01f5bf3999a3db5b1bbd9fdfd80d8d304e94ee nohz: nohz full depends on irq work self IPI support > > > > Main changes: > > > > - Fix the deadlock reported by Dave Jones et al > > - Clean up and fix nohz_full interaction with arch abilities > > - nohz init code consolidation/cleanup > > Ok, pulled. But none of these are marked for stable, yet the deadlock > people are seeing is in 3.17. Is there a separate line of minimal > fixes just for that? Or was the lack of stable tags just an oversight? It was first intended because the patchset is quite invasive and nohz full has no known users, or perhaps there is one... So I thought that backporting could be more dangerous than anything. Now thinking more about it I could isolate the following patches for stable: irq_work: Introduce arch_irq_work_has_interrupt() irq_work: Force raised irq work to run on irq work interrupt x86: Tell irq work about self IPI support arm: Tell irq work about self IPI support Sending these to stable@vger.kernel.org would catch up, right? I can still do that. Thanks. ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] timers/nohz updates for v3.18 2014-10-09 12:57 ` Frederic Weisbecker @ 2014-10-09 13:50 ` Greg KH 2014-10-09 14:36 ` Frederic Weisbecker 0 siblings, 1 reply; 5+ messages in thread From: Greg KH @ 2014-10-09 13:50 UTC (permalink / raw) To: Frederic Weisbecker Cc: Linus Torvalds, Ingo Molnar, stable, Linux Kernel Mailing List, Thomas Gleixner, Peter Zijlstra, Andrew Morton On Thu, Oct 09, 2014 at 02:57:25PM +0200, Frederic Weisbecker wrote: > On Thu, Oct 09, 2014 at 06:34:26AM -0400, Linus Torvalds wrote: > > Hmm.. > > > > On Thu, Oct 9, 2014 at 2:48 AM, Ingo Molnar <mingo@kernel.org> wrote: > > > > > > Please pull the latest timers-nohz-for-linus git tree from: > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus > > > > > > # HEAD: 9b01f5bf3999a3db5b1bbd9fdfd80d8d304e94ee nohz: nohz full depends on irq work self IPI support > > > > > > Main changes: > > > > > > - Fix the deadlock reported by Dave Jones et al > > > - Clean up and fix nohz_full interaction with arch abilities > > > - nohz init code consolidation/cleanup > > > > Ok, pulled. But none of these are marked for stable, yet the deadlock > > people are seeing is in 3.17. Is there a separate line of minimal > > fixes just for that? Or was the lack of stable tags just an oversight? > > It was first intended because the patchset is quite invasive and nohz full has > no known users, or perhaps there is one... So I thought that backporting > could be more dangerous than anything. > > Now thinking more about it I could isolate the following patches for > stable: > > irq_work: Introduce arch_irq_work_has_interrupt() > irq_work: Force raised irq work to run on irq work interrupt > x86: Tell irq work about self IPI support > arm: Tell irq work about self IPI support > > Sending these to stable@vger.kernel.org would catch up, right? I > can still do that. If I can just pick those patches directly, that's all I need for the stable trees. What are the git ids in Linus's tree for these patches, so that I know I got this correct? thanks, greg k-h ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] timers/nohz updates for v3.18 2014-10-09 13:50 ` Greg KH @ 2014-10-09 14:36 ` Frederic Weisbecker 2014-10-09 15:14 ` Greg KH 0 siblings, 1 reply; 5+ messages in thread From: Frederic Weisbecker @ 2014-10-09 14:36 UTC (permalink / raw) To: Greg KH Cc: Linus Torvalds, Ingo Molnar, stable, Linux Kernel Mailing List, Thomas Gleixner, Peter Zijlstra, Andrew Morton On Thu, Oct 09, 2014 at 06:50:04AM -0700, Greg KH wrote: > On Thu, Oct 09, 2014 at 02:57:25PM +0200, Frederic Weisbecker wrote: > > On Thu, Oct 09, 2014 at 06:34:26AM -0400, Linus Torvalds wrote: > > > Hmm.. > > > > > > On Thu, Oct 9, 2014 at 2:48 AM, Ingo Molnar <mingo@kernel.org> wrote: > > > > > > > > Please pull the latest timers-nohz-for-linus git tree from: > > > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus > > > > > > > > # HEAD: 9b01f5bf3999a3db5b1bbd9fdfd80d8d304e94ee nohz: nohz full depends on irq work self IPI support > > > > > > > > Main changes: > > > > > > > > - Fix the deadlock reported by Dave Jones et al > > > > - Clean up and fix nohz_full interaction with arch abilities > > > > - nohz init code consolidation/cleanup > > > > > > Ok, pulled. But none of these are marked for stable, yet the deadlock > > > people are seeing is in 3.17. Is there a separate line of minimal > > > fixes just for that? Or was the lack of stable tags just an oversight? > > > > It was first intended because the patchset is quite invasive and nohz full has > > no known users, or perhaps there is one... So I thought that backporting > > could be more dangerous than anything. > > > > Now thinking more about it I could isolate the following patches for > > stable: > > > > irq_work: Introduce arch_irq_work_has_interrupt() > > irq_work: Force raised irq work to run on irq work interrupt > > x86: Tell irq work about self IPI support > > arm: Tell irq work about self IPI support > > > > Sending these to stable@vger.kernel.org would catch up, right? I > > can still do that. > > If I can just pick those patches directly, that's all I need for the > stable trees. What are the git ids in Linus's tree for these patches, > so that I know I got this correct? Awesome, here we go in order: _ c5c38ef3d70377dc504a6a3f611a3ec814bc757b: irq_work: Introduce arch_irq_work_has_interrupt() _ 76a33061b9323b7fdb220ae5fa116c10833ec22e: irq_work: Force raised irq work to run on irq work interrupt _ 3010279f0fc36f0388872203e63ca49912f648fd: x86: Tell irq work about self IPI support _ 09f6edd424218eb69078551b2ecfada1f2d098eb: arm: Tell irq work about self IPI support Only 3.17 should be concerned. Thanks a lot Greg! > thanks, > > greg k-h ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [GIT PULL] timers/nohz updates for v3.18 2014-10-09 14:36 ` Frederic Weisbecker @ 2014-10-09 15:14 ` Greg KH 0 siblings, 0 replies; 5+ messages in thread From: Greg KH @ 2014-10-09 15:14 UTC (permalink / raw) To: Frederic Weisbecker Cc: Linus Torvalds, Ingo Molnar, stable, Linux Kernel Mailing List, Thomas Gleixner, Peter Zijlstra, Andrew Morton On Thu, Oct 09, 2014 at 04:36:16PM +0200, Frederic Weisbecker wrote: > On Thu, Oct 09, 2014 at 06:50:04AM -0700, Greg KH wrote: > > On Thu, Oct 09, 2014 at 02:57:25PM +0200, Frederic Weisbecker wrote: > > > On Thu, Oct 09, 2014 at 06:34:26AM -0400, Linus Torvalds wrote: > > > > Hmm.. > > > > > > > > On Thu, Oct 9, 2014 at 2:48 AM, Ingo Molnar <mingo@kernel.org> wrote: > > > > > > > > > > Please pull the latest timers-nohz-for-linus git tree from: > > > > > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus > > > > > > > > > > # HEAD: 9b01f5bf3999a3db5b1bbd9fdfd80d8d304e94ee nohz: nohz full depends on irq work self IPI support > > > > > > > > > > Main changes: > > > > > > > > > > - Fix the deadlock reported by Dave Jones et al > > > > > - Clean up and fix nohz_full interaction with arch abilities > > > > > - nohz init code consolidation/cleanup > > > > > > > > Ok, pulled. But none of these are marked for stable, yet the deadlock > > > > people are seeing is in 3.17. Is there a separate line of minimal > > > > fixes just for that? Or was the lack of stable tags just an oversight? > > > > > > It was first intended because the patchset is quite invasive and nohz full has > > > no known users, or perhaps there is one... So I thought that backporting > > > could be more dangerous than anything. > > > > > > Now thinking more about it I could isolate the following patches for > > > stable: > > > > > > irq_work: Introduce arch_irq_work_has_interrupt() > > > irq_work: Force raised irq work to run on irq work interrupt > > > x86: Tell irq work about self IPI support > > > arm: Tell irq work about self IPI support > > > > > > Sending these to stable@vger.kernel.org would catch up, right? I > > > can still do that. > > > > If I can just pick those patches directly, that's all I need for the > > stable trees. What are the git ids in Linus's tree for these patches, > > so that I know I got this correct? > > Awesome, here we go in order: > > _ c5c38ef3d70377dc504a6a3f611a3ec814bc757b: irq_work: Introduce arch_irq_work_has_interrupt() > _ 76a33061b9323b7fdb220ae5fa116c10833ec22e: irq_work: Force raised irq work to run on irq work interrupt > _ 3010279f0fc36f0388872203e63ca49912f648fd: x86: Tell irq work about self IPI support > _ 09f6edd424218eb69078551b2ecfada1f2d098eb: arm: Tell irq work about self IPI support > > Only 3.17 should be concerned. Great, I'll queue these up soon. greg k-h ^ permalink raw reply [flat|nested] 5+ messages in thread
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[not found] <20141009064813.GA20517@gmail.com>
2014-10-09 10:34 ` [GIT PULL] timers/nohz updates for v3.18 Linus Torvalds
2014-10-09 12:57 ` Frederic Weisbecker
2014-10-09 13:50 ` Greg KH
2014-10-09 14:36 ` Frederic Weisbecker
2014-10-09 15:14 ` Greg KH
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