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RE: RFC Add extra sync release step for late callbacks.


  • To: "paul@xxxxxxx" <paul@xxxxxxx>, "win-pv-devel@xxxxxxxxxxxxxxxxxxxx" <win-pv-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Martin Harvey <martin.harvey@xxxxxxxxxx>
  • Date: Thu, 5 May 2022 08:55:01 +0000
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  • Cc: Owen Smith <owen.smith@xxxxxxxxxx>
  • Delivery-date: Thu, 05 May 2022 08:55:10 +0000
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  • Thread-topic: RFC Add extra sync release step for late callbacks.


-----Original Message-----
From: Durrant, Paul <xadimgnik@xxxxxxxxx> 
Sent: 04 May 2022 17:37
To: Martin Harvey <martin.harvey@xxxxxxxxxx>; paul@xxxxxxx; 
win-pv-devel@xxxxxxxxxxxxxxxxxxxx
Cc: Owen Smith <owen.smith@xxxxxxxxxx>
Subject: Re: RFC Add extra sync release step for late callbacks.

> I went with requests/commands rather then state and I do seem to have 
> something functional now but am seeing stalls in the xenstore datapath 
> after restore from a saved image. There's also quite a bit of tidying to do.
> Aiming to have something by the end of the week (day-job allowing).

OK. We're running with the patch I presented in the RFC, and will probably run 
with that in master until we update our upstream refs - so we're not urgently 
in need of any further fixing. Perhaps rework at your leisure, it would be 
embarrassing to re-introduce a bug as part of the re-work. Perhaps I should 
submit the RFC as a proper [PATCH]?

MH.

 


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