> -Original Message-
> From: Suresh Siddha [mailto:suresh.b.sid...@intel.com]
> Sent: 2012年10月10日 18:02
> > > So I looked at why you are seeing the problem with v2.6.32 but not
> > > with the recent kernels. And I think I found out the reason.
> >
> > I want to know what masking IO-APIC me
ix.de; x...@kernel.org;
> a.p.zijls...@chello.nl; Sakkinen, Jarkko; joerg.roe...@amd.com;
> agord...@redhat.com; ying...@kernel.org
> Subject: RE: [PATCH] fix x2apic defect that Linux kernel doesn't mask 8259A
> interrupt during the time window between changing VT-d table base addres
OSV = Operating System Vendor ime. red Hat, SUSE etc.
"Zhang, Lin-Bao (Linux Kernel R&D)" wrote:
>
>> -Original Message-
>> From: Suresh Siddha [mailto:suresh.b.sid...@intel.com]
>> > > Can you please apply the appended patch to 2.6.32 kernel and see
>if
>> > > the issue you mentioned ge
> -Original Message-
> From: Suresh Siddha [mailto:suresh.b.sid...@intel.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 resolv
On Wed, 2012-10-10 at 00:26 +, Zhang, Lin-Bao (Linux Kernel R&D)
wrote:
> So , we can think ,as your patch , during the window , IO-apic is
> useless or we can think IO-APIC doesn't exist ?
> Could you mind please sharing your design details ? thanks very much!
Between the window of interru
On Wed, 2012-10-10 at 16:02 -0700, Zhang, Lin-Bao (Linux Kernel R&D)
wrote:
> > As I mentioned earlier, the current design already ensures that all the
> > IO-APIC
> > RTE's are masked between the time we enable interrupt-remapping to the time
> > when the IO-APIC RTE's are configured correctly.
>
Hi Suresh,
Now , I want to clarify 2 type of errors :
a) some interrupt doesn't work through Interrupt -remapped IO-APIC.
b) an interrupt is coming , there is an IO-APIC entry to know how to route it
to which CPU,
but VT-d entry is empty, ITP will report Present bit is clear.
BIOS should pr
Hi Suresh,
Thanks very much for your reply!
I tested this patch in 2.6.32 with our machine , it can indeed can resolve
current issue. that 's good.
I also check 3.x version of kernel source , for example , 3.3.8 and 3.0.0 ,
they indeed include similar patch ,
I think the key action is
On Sun, 2012-10-07 at 21:53 -0700, Zhang, Lin-Bao (Linux Kernel R&D)
wrote:
> Hi Suresh,
> Could you please update current status about these 2 files and patch?
> I am not sure if I have answered your questions , if not ,feel free to let me
> know.
> This is my first time to submit patch to LKML,
oxon, Nigel; 't...@linutronix.de'; 'h...@zytor.com';
> 'x...@kernel.org'; 'a.p.zijls...@chello.nl'; 'jarkko.sakki...@intel.com';
> 'joerg.roe...@amd.com'; 'agord...@redhat.com'; 'ying...@kernel.org';
>
Hi suresh,
Thanks for your reply and review this patch.
I also cc other maintainers of arch/x86/kernel/smpboot.c and
arch/x86/kernel/apic/apic.c(getting them by get_maintainer.pl script, hopefully
I have not disturbed many people , if yes ,sorry first)
> -Original Message-
> From: S
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