linux-kernel - RE: [PATCH] fix x2apic defect that Linux kernel doesn't mask 8259A interrupt during the time window between changing VT-d table base address and initializing these VT-d entries(smpboot.c and apic.c )

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Message-ID: <92645B27BF79D04FBD2B0F8494FFD0F910292C@G2W2429.americas.hpqcorp.net>
Date:	Thu, 11 Oct 2012 03:52:09 +0000
From:	"Zhang, Lin-Bao (Linux Kernel R&D)" <linbao.zhang@...com>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"alan@...rguk.ukuu.org.uk" <alan@...rguk.ukuu.org.uk>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"Croxon, Nigel" <nigel.croxon@...com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"hpa@...or.com" <hpa@...or.com>, "x86@...nel.org" <x86@...nel.org>,
	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	"Sakkinen, Jarkko" <jarkko.sakkinen@...el.com>,
	"joerg.roedel@....com" <joerg.roedel@....com>,
	"agordeev@...hat.com" <agordeev@...hat.com>,
	"yinghai@...nel.org" <yinghai@...nel.org>,
	"Zhang, Lin-Bao (Linux Kernel R&D)" <linbao.zhang@...com>
Subject: RE: [PATCH] fix x2apic defect that Linux kernel doesn't mask 8259A
 interrupt during the time window between changing VT-d table base address
 and initializing these VT-d entries(smpboot.c and apic.c )


> -----Original Message-----
> From: Suresh Siddha [mailto:suresh.b.siddha@...el.com]
> > > Can you please apply the appended patch to 2.6.32 kernel and see if
> > > the issue you mentioned gets fixed? If so, we can ask the -stable
> > > and OSV's teams to pick up this fix.
> > Yes , it can resolve current issue.
> 
> Thanks for testing it out.
> 
You are welcome!

> I will add the appropriate changelog and send the patch out (to 2.6.32 stable
> and OSV kernels) with your "Tested-by:" if you are ok.
> 
Sure, it is my pleasure .Please go ahead!
BTW , what's OSV kernels ? I can't find its meaning by searching google.  
Once your patch has been included by 2.6 git, kindly inform me. Thanks. 

> thanks,
> suresh