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RE: [PATCH] fix dirty_bit in xenivt.S (was Re: [Xen-ia64-devel] Fail toc
| To: | "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx>, "You, Yongkang" <yongkang.you@xxxxxxxxx> |
|---|---|
| Subject: | RE: [PATCH] fix dirty_bit in xenivt.S (was Re: [Xen-ia64-devel] Fail tocreate VTI domain in lates Cset 10143) |
| From: | "Tian, Kevin" <kevin.tian@xxxxxxxxx> |
| Date: | Wed, 24 May 2006 15:04:27 +0800 |
| Cc: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Wed, 24 May 2006 00:04:43 -0700 |
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| Thread-index: | AcZ+5f95mRWyzkSUSqu8Rec7J7imqgAGUCvQ |
| Thread-topic: | [PATCH] fix dirty_bit in xenivt.S (was Re: [Xen-ia64-devel] Fail tocreate VTI domain in lates Cset 10143) |
>From: Isaku Yamahata
>Sent: 2006年5月24日 11:56
>
>On Wed, May 24, 2006 at 06:10:53AM +0800, You, Yongkang wrote:
>
>> Well, I found a lot of bad address reported from serial port, no matter
>creating VTI or XenU domain.
>> (XEN) vcpu_translate: bad physical address: 0xa00000010000a0a0
>
>Does the attached patch fix it?
>I saw the same message, so I tracked it down.
>However I couldn't reproduce reliably, I don't know this patch solves it.
>If you know the way to reproduce, could you tell us?
>
>--
Hi, Isaku,
I'm interesting why your patch can fix potential issue here. Ideally
XEN_HYPER_ITC_D is only the fast path which should have the same
effect as GP fault caused by itc.d. If your patch really helps, that means
the two paths (slow/fast) are incompatible which need to be solved, right?
Thanks,
Kevin
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