linux-kernel - Re: [Query] Preemption (hogging) of the work handler

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Message-ID: <20160706192507.GE4127@ubuntu>
Date:	Wed, 6 Jul 2016 12:25:07 -0700
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Tejun Heo <tj@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	vlevenetz@...sol.com, vaibhav.hiremath@...aro.org,
	alex.elder@...aro.org, johan@...nel.org, akpm@...ux-foundation.org,
	jack@...e.cz
Subject: Re: [Query] Preemption (hogging) of the work handler

On 06-07-16, 15:23, Steven Rostedt wrote:
> On Wed, 6 Jul 2016 11:28:42 -0700
> Viresh Kumar <viresh.kumar@...aro.org> wrote:
> 
> 
> > 
> > I tried looking at if something related to this changed between 3.10
> > and mainline, and found few patches at least. One of the important
> > ones is:
> > 
> > commit 5874af2003b1 ("printk: enable interrupts before calling
> > console_trylock_for_printk()")
> > 
> > I wasn't able to backport it cleanly to 3.10 yet to see it makes thing
> > work better though. But it looks like it was targeting similar
> > problems.
> > 
> 
> Do you have the same issues with latest mainline, or is this only a
> 3.10 issue?

Don't have a mainline setup to reproduce this. For now, it is only on 3.10.

-- 
viresh