linux-kernel - Re: Proper kernel irq time accounting -v4

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Message-ID: <20101017091152.GB3468@zhy>
Date:	Sun, 17 Oct 2010 17:11:52 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	Venkatesh Pallipadi <venki@...gle.com>
Cc:	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-kernel@...r.kernel.org, Paul Turner <pjt@...gle.com>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: Proper kernel irq time accounting -v4

On Fri, Oct 15, 2010 at 10:13:46AM -0700, Venkatesh Pallipadi wrote:
> On Fri, Oct 15, 2010 at 8:27 AM, Peter Zijlstra <peterz@...radead.org> wrote:
> > On Fri, 2010-10-15 at 17:11 +0200, Peter Zijlstra wrote:
> >> OK, I'll take this, but will frob 4 to simply add PF_KSOFTIRQD.
> >>
> >> We can do all additional changes, possibly including what Eric
> >> suggested, at a later stage as increments.
> >>
> >> Thanks!
> >
> > *kablam!*
> >
> > booting with noirqtime doesn't work either, same explosion.
> 
> This crash seems to be from patch 8/8 that changed irq_enter. Please
> drop it for now and I will rework that.

Just notice this, so my reply to patch 8/8 will fix it.

Thanks,
Yong

> I will also send the cleanup changes including one that Eric suggested
> as incremental patches.
> 
> Thanks,
> Venki
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