linux-kernel - Re: [PATCH] x86, Fix do_IRQ interrupt warning for cpu hotplug retriggered irqs [v2]

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Date:	Sun, 05 Jan 2014 11:08:26 -0500
From:	Prarit Bhargava <prarit@...hat.com>
To:	Prarit Bhargava <prarit@...hat.com>
CC:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Michel Lespinasse <walken@...gle.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Seiji Aguchi <seiji.aguchi@....com>,
	Yang Zhang <yang.z.zhang@...el.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	janet.morgan@...el.com, tony.luck@...el.com, ruiv.wang@...il.com
Subject: Re: [PATCH] x86, Fix do_IRQ interrupt warning for cpu hotplug retriggered
 irqs [v2]



On 01/05/2014 11:07 AM, Prarit Bhargava wrote:
> I tested this by doing a continuous loop of booting a system, downing all
> cpus, and then rebooting.  Before every reboot I grepped the dmesg log for
> the do_IRQ warning to see if there were any additional do_IRQ warnings and
> I do not see any after applying this patch.  I also tested on several
> small and medium sized boxes to confirm that cpu hotplug still works there
> too and do not see any issues.  Please note that this patchset was tested
> in conjunction with 
> 
> http://marc.info/?l=linux-edac&m=138783131400902&w=2
> 
> and
> 
> http://marc.info/?l=linux-kernel&m=138871006718478&w=2
> 
> in order to get cpu hotplug working.
> 
> I'm redoing some additional stability testing (with the additional 2 line
> change in this version of the patch) after down'ing all cpus and
> bringing them back into service, however, I don't expect to see any new issues.
> 
> P.
> 
> ----8<----
> 
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64831

Oops.  I neglected to update the version in the subject.  Will resend with
appropriate [v3] in a few seconds ...

P.
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