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xen-devel
[Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while
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To: |
Don Zickus <dzickus@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking |
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From: |
Andi Kleen <andi@xxxxxxxxxxxxxx> |
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Date: |
Tue, 13 Sep 2011 21:58:38 +0200 |
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Cc: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Marcelo Tosatti <mtosatti@xxxxxxxxxx>, Nick Piggin <npiggin@xxxxxxxxx>, KVM <kvm@xxxxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Andi Kleen <andi@xxxxxxxxxxxxxx>, Avi Kivity <avi@xxxxxxxxxx>, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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Tue, 13 Sep 2011 13:03:59 -0700 |
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<20110913192152.GO5795@xxxxxxxxxx> |
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<4E66EF86.9070200@xxxxxxxxxx> <20110907134411.GV5795@xxxxxxxxxx> <4E678992.5050709@xxxxxxxxxx> <20110907155657.GX5795@xxxxxxxxxx> <4E679AF4.50209@xxxxxxxxxx> <20110907165203.GQ6838@xxxxxxxxxx> <4E67A551.4000502@xxxxxxxxxx> <20110913184044.GN5795@xxxxxxxxxx> <20110913190320.GR7761@xxxxxxxxxxxxxxxxxx> <20110913192152.GO5795@xxxxxxxxxx> |
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Mutt/1.4.2.2i |
> Or are you saying an NMI in an idle system will have the same %rip thus
> falsely detecting a back-to-back NMI?
Yup.
Another problem is very long running instructions, like WBINVD and some others.
If there's a high frequency NMI it may well hit multiple times in a single
instance.
-Andi
--
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, (continued)
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Don Zickus
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Avi Kivity
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Don Zickus
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Andi Kleen
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Don Zickus
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Don Zickus
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking,
Andi Kleen <=
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Don Zickus
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Andi Kleen
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Avi Kivity
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Don Zickus
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Andi Kleen
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Avi Kivity
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Andi Kleen
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Avi Kivity
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Andi Kleen
- [Xen-devel] Re: [PATCH 08/13] xen/pvticketlock: disable interrupts while blocking, Avi Kivity
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