Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed 2016-07-13 22:24:38, Sergey Senozhatsky wrote: > Hello, > > On (07/13/16 13:14), Petr Mladek wrote: > [..] > > > > [ 4913.000310] > > > > item8750item8751item8752item8753item8754item8755item8756item8757item8758item8759 > > > > [ 4913.000327] > > > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed 2016-07-13 22:24:38, Sergey Senozhatsky wrote: > Hello, > > On (07/13/16 13:14), Petr Mladek wrote: > [..] > > > > [ 4913.000310] > > > > item8750item8751item8752item8753item8754item8755item8756item8757item8758item8759 > > > > [ 4913.000327] > > > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

Hello, On (07/13/16 13:14), Petr Mladek wrote: [..] > > > [ 4913.000310] > > > item8750item8751item8752item8753item8754item8755item8756item8757item8758item8759 > > > [ 4913.000327] > > > item8760item8761item8762item8763item8764item8765item8766item8767item8768item8769 > > > [ 4913.000342] > > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

Hello, On (07/13/16 13:14), Petr Mladek wrote: [..] > > > [ 4913.000310] > > > item8750item8751item8752item8753item8754item8755item8756item8757item8758item8759 > > > [ 4913.000327] > > > item8760item8761item8762item8763item8764item8765item8766item8767item8768item8769 > > > [ 4913.000342] > > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Tue 2016-07-12 10:04:59, Viresh Kumar wrote: > On 12-07-16, 17:59, Petr Mladek wrote: > > On Mon 2016-07-11 12:25:11, Viresh Kumar wrote: > > > We were also screwed because of the problem this thread is trying to > > > solve, > > > which I posted last week [1]. > > > > > > And then I found

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Tue 2016-07-12 10:04:59, Viresh Kumar wrote: > On 12-07-16, 17:59, Petr Mladek wrote: > > On Mon 2016-07-11 12:25:11, Viresh Kumar wrote: > > > We were also screwed because of the problem this thread is trying to > > > solve, > > > which I posted last week [1]. > > > > > > And then I found

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed 2016-07-13 16:42:42, Sergey Senozhatsky wrote: > Hello, > > On (07/12/16 18:28), Petr Mladek wrote: > > I have tried the following: > > > >int a,b; > > > >for (a = 0; a < 1000; a++) { > >for (b = 0; b < 10; b++) { > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed 2016-07-13 16:42:42, Sergey Senozhatsky wrote: > Hello, > > On (07/12/16 18:28), Petr Mladek wrote: > > I have tried the following: > > > >int a,b; > > > >for (a = 0; a < 1000; a++) { > >for (b = 0; b < 10; b++) { > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

Hello, On (07/12/16 18:28), Petr Mladek wrote: > I have tried the following: > >int a,b; > >for (a = 0; a < 1000; a++) { >for (b = 0; b < 10; b++) { >pr_cont("item%04d", a*10 + b); >} >pr_cont("\n"); >

Re: [PATCH v12 0/3] printk: Make printk() completely async

Hello, On (07/12/16 18:28), Petr Mladek wrote: > I have tried the following: > >int a,b; > >for (a = 0; a < 1000; a++) { >for (b = 0; b < 10; b++) { >pr_cont("item%04d", a*10 + b); >} >pr_cont("\n"); >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On 12-07-16, 17:59, Petr Mladek wrote: > On Mon 2016-07-11 12:25:11, Viresh Kumar wrote: > > We were also screwed because of the problem this thread is trying to solve, > > which I posted last week [1]. > > > > And then I found this thread which fixed my issue, thanks a lot guys :) > > > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On 12-07-16, 17:59, Petr Mladek wrote: > On Mon 2016-07-11 12:25:11, Viresh Kumar wrote: > > We were also screwed because of the problem this thread is trying to solve, > > which I posted last week [1]. > > > > And then I found this thread which fixed my issue, thanks a lot guys :) > > > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On (07/12/16 17:59), Petr Mladek wrote: [..] > > [ 12.874909] sched: RT throttling activated for rt_rq ffc0ac13fcd0 > > (cpu 0) > > [ 12.874909] potential CPU hogs: > > [ 12.874909] printk (292) > > > > On my system, the excessive printing happens during suspend/resume and this > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On (07/12/16 17:59), Petr Mladek wrote: [..] > > [ 12.874909] sched: RT throttling activated for rt_rq ffc0ac13fcd0 > > (cpu 0) > > [ 12.874909] potential CPU hogs: > > [ 12.874909] printk (292) > > > > On my system, the excessive printing happens during suspend/resume and this > >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed 2016-06-29 14:08:35, Sergey Senozhatsky wrote: > Hello, > > the patch to fix the async KERN_CONT printk regression I mentioned > several days ago in another thread. > > as a separate patch for now, to ease the review. will squash with 0001. > > == 8< == > > >From

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed 2016-06-29 14:08:35, Sergey Senozhatsky wrote: > Hello, > > the patch to fix the async KERN_CONT printk regression I mentioned > several days ago in another thread. > > as a separate patch for now, to ease the review. will squash with 0001. > > == 8< == > > >From

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Mon 2016-07-11 12:25:11, Viresh Kumar wrote: > On Fri, May 13, 2016 at 6:18 AM, Sergey Senozhatsky > wrote: > > Hello, > > > > no code changes, just refreshing the series so it'll be easier to > > pick up. added Reviwed-by-s and corrected a typo spotted by Petr. >

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Mon 2016-07-11 12:25:11, Viresh Kumar wrote: > On Fri, May 13, 2016 at 6:18 AM, Sergey Senozhatsky > wrote: > > Hello, > > > > no code changes, just refreshing the series so it'll be easier to > > pick up. added Reviwed-by-s and corrected a typo spotted by Petr. > > > > This patch permits to

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Fri, May 13, 2016 at 6:18 AM, Sergey Senozhatsky wrote: > Hello, > > no code changes, just refreshing the series so it'll be easier to > pick up. added Reviwed-by-s and corrected a typo spotted by Petr. > > This patch permits to change printk() to operate in

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Fri, May 13, 2016 at 6:18 AM, Sergey Senozhatsky wrote: > Hello, > > no code changes, just refreshing the series so it'll be easier to > pick up. added Reviwed-by-s and corrected a typo spotted by Petr. > > This patch permits to change printk() to operate in completely > asynchronous mode: new

Re: [PATCH v12 0/3] printk: Make printk() completely async

On (06/28/16 22:16), Joe Perches wrote: > On Wed, 2016-06-29 at 14:08 +0900, Sergey Senozhatsky wrote: > > the patch to fix the async KERN_CONT printk regression I mentioned > > several days ago in another thread. > > KERN_CONT is effectively a no-op. > This is any printk without a KERN_ if the

Re: [PATCH v12 0/3] printk: Make printk() completely async

On (06/28/16 22:16), Joe Perches wrote: > On Wed, 2016-06-29 at 14:08 +0900, Sergey Senozhatsky wrote: > > the patch to fix the async KERN_CONT printk regression I mentioned > > several days ago in another thread. > > KERN_CONT is effectively a no-op. > This is any printk without a KERN_ if the

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed, 2016-06-29 at 14:08 +0900, Sergey Senozhatsky wrote: > the patch to fix the async KERN_CONT printk regression I mentioned > several days ago in another thread. KERN_CONT is effectively a no-op. This is any printk without a KERN_

Re: [PATCH v12 0/3] printk: Make printk() completely async

On Wed, 2016-06-29 at 14:08 +0900, Sergey Senozhatsky wrote: > the patch to fix the async KERN_CONT printk regression I mentioned > several days ago in another thread. KERN_CONT is effectively a no-op. This is any printk without a KERN_

Re: [PATCH v12 0/3] printk: Make printk() completely async

Hello, the patch to fix the async KERN_CONT printk regression I mentioned several days ago in another thread. as a separate patch for now, to ease the review. will squash with 0001. == 8< == >From 70f65ed55eb82a1b8b74fdbd1a7afc9e77e9b380 Mon Sep 17 00:00:00 2001 From:

Re: [PATCH v12 0/3] printk: Make printk() completely async

Hello, the patch to fix the async KERN_CONT printk regression I mentioned several days ago in another thread. as a separate patch for now, to ease the review. will squash with 0001. == 8< == >From 70f65ed55eb82a1b8b74fdbd1a7afc9e77e9b380 Mon Sep 17 00:00:00 2001 From:

Re: [PATCH v12 0/3] printk: Make printk() completely async

On (05/13/16 22:18), Sergey Senozhatsky wrote: > Hello, > > no code changes, just refreshing the series so it'll be easier to > pick up. added Reviwed-by-s and corrected a typo spotted by Petr. > Andrew, Did you get a chance to look at the series? -ss

Re: [PATCH v12 0/3] printk: Make printk() completely async

On (05/13/16 22:18), Sergey Senozhatsky wrote: > Hello, > > no code changes, just refreshing the series so it'll be easier to > pick up. added Reviwed-by-s and corrected a typo spotted by Petr. > Andrew, Did you get a chance to look at the series? -ss

[PATCH v12 0/3] printk: Make printk() completely async

Hello, no code changes, just refreshing the series so it'll be easier to pick up. added Reviwed-by-s and corrected a typo spotted by Petr. This patch permits to change printk() to operate in completely asynchronous mode: new messages are getting upended to the kernel printk buffer, but instead

[PATCH v12 0/3] printk: Make printk() completely async

Hello, no code changes, just refreshing the series so it'll be easier to pick up. added Reviwed-by-s and corrected a typo spotted by Petr. This patch permits to change printk() to operate in completely asynchronous mode: new messages are getting upended to the kernel printk buffer, but instead

[PATCH v12 0/3] printk: Make printk() completely async

Hello, This patch set makes printk() completely asynchronous: new messages are getting upended to the kernel printk buffer, but instead of 'direct' printing the actual print job is performed by a dedicated kthread. This has the advantage that printing always happens from a schedulable context and

[PATCH v12 0/3] printk: Make printk() completely async

Hello, This patch set makes printk() completely asynchronous: new messages are getting upended to the kernel printk buffer, but instead of 'direct' printing the actual print job is performed by a dedicated kthread. This has the advantage that printing always happens from a schedulable context and