Re: [PATCH 3.17 00/25] 3.17.1-stable review

[Greg Kroah-Hartman]

On Mon, Oct 13, 2014 at 08:23:19AM -0500, Chuck Ebbert wrote:
> On Mon, 13 Oct 2014 08:28:35 -0300
> Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> wrote:
> 
> > On Mon, 13 Oct 2014, Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 3.17.1
> > > release. There are 25 patches in this series, all will be posted
> > > as a response to this one.  If anyone has any issues with these
> > > being applied, please let me know.
> > 
> > Actually, 3.17 is a filesystem killer for some unlucky users due to
> > the libata blacklist being disabled by a bug.
> > 
> > Patch:
> > https://git.kernel.org/cgit/linux/kernel/git/tj/libata.git/patch/?id=1c40279960bcd7d52dbdf1d466b20d24b99176c8
> > 1c40279960bcd7d52dbdf1d466b20d24b99176c8 (libata: Un-break ATA
> > blacklist)
> > 
> 
> There are some more bugs too:
> 
> 
> RCU stalls, fix has been in rcu/urgent for 7 days:
> https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git/commit/?h=rcu/urgent&id=789cbbeca4eb7141cbd748ee93772471101b507b

Doesn't build in 3.17 properly :(

> blk-mq bio merging (still no good fix available):
> https://lkml.org/lkml/2014/10/9/729
> (The fix sitting in the block tree:
> https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git/commit/?h=for-3.18/core&id=764f612c6c3c231b9c12cfae7c328ccc9c453258
> is wrong according to that message.)

Did this ever get resolved?

> Stalls when using nohz, requires series of six patches to fix that
> didn't make 3.17 and weren't marked for -stable:
> 
> From a80e49e2cc3145af014a8ae44f575829cc236192 Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: nohz: Move nohz full init call to tick init
> 
> From c5c38ef3d70377dc504a6a3f611a3ec814bc757b Mon Sep 17 00:00:00 2001
> From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Subject: irq_work: Introduce arch_irq_work_has_interrupt()
> 
> From 76a33061b9323b7fdb220ae5fa116c10833ec22e Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: irq_work: Force raised irq work to run on irq work interrupt
> 
> From 3010279f0fc36f0388872203e63ca49912f648fd Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: x86: Tell irq work about self IPI support
> 
> From 09f6edd424218eb69078551b2ecfada1f2d098eb Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: arm: Tell irq work about self IPI support
> 
> From 3631073659d0aafeaa52227bb61a100efaf901dc Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
To: 09f6edd424218eb69078551b2ecfada1f2d098eb
To: Chuck Ebbert <cebbert.lkml@xxxxxxxxx>
Cc: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>,
	linux-kernel@xxxxxxxxxxxxxxx, stable@xxxxxxxxxx
Bcc: 
Subject: Re: [PATCH 3.17 00/25] 3.17.1-stable review
Reply-To: 
In-Reply-To: <20141013082319.175d90bb@as>

On Mon, Oct 13, 2014 at 08:23:19AM -0500, Chuck Ebbert wrote:
> On Mon, 13 Oct 2014 08:28:35 -0300
> Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> wrote:
> 
> > On Mon, 13 Oct 2014, Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 3.17.1
> > > release. There are 25 patches in this series, all will be posted
> > > as a response to this one.  If anyone has any issues with these
> > > being applied, please let me know.
> > 
> > Actually, 3.17 is a filesystem killer for some unlucky users due to
> > the libata blacklist being disabled by a bug.
> > 
> > Patch:
> > https://git.kernel.org/cgit/linux/kernel/git/tj/libata.git/patch/?id=1c40279960bcd7d52dbdf1d466b20d24b99176c8
> > 1c40279960bcd7d52dbdf1d466b20d24b99176c8 (libata: Un-break ATA
> > blacklist)
> > 
> 
> There are some more bugs too:
> 
> 
> RCU stalls, fix has been in rcu/urgent for 7 days:
> https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git/commit/?h=rcu/urgent&id=789cbbeca4eb7141cbd748ee93772471101b507b

Doesn't build in 3.17 properly :(

> blk-mq bio merging (still no good fix available):
> https://lkml.org/lkml/2014/10/9/729
> (The fix sitting in the block tree:
> https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git/commit/?h=for-3.18/core&id=764f612c6c3c231b9c12cfae7c328ccc9c453258
> is wrong according to that message.)

Did this ever get resolved?

> Stalls when using nohz, requires series of six patches to fix that
> didn't make 3.17 and weren't marked for -stable:
> 
> From a80e49e2cc3145af014a8ae44f575829cc236192 Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: nohz: Move nohz full init call to tick init
> 
> From c5c38ef3d70377dc504a6a3f611a3ec814bc757b Mon Sep 17 00:00:00 2001
> From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Subject: irq_work: Introduce arch_irq_work_has_interrupt()
> 
> From 76a33061b9323b7fdb220ae5fa116c10833ec22e Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: irq_work: Force raised irq work to run on irq work interrupt
> 
> From 3010279f0fc36f0388872203e63ca49912f648fd Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: x86: Tell irq work about self IPI support
> 
> From 09f6edd424218eb69078551b2ecfada1f2d098eb Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: arm: Tell irq work about self IPI support
> 
> From 3631073659d0aafeaa52227bb61a100efaf901dc Mon Sep 17 00:00:00 2001
> From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Subject: arm64: Tell irq work about self IPI support

These are pretty intrusive, maybe 3.18 is better for people to use :)

If Frederic says it's ok for me to backport these, I will, but I want
his ack first.

thanks,

greg k-h
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