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Re: [PATCH v5 08/14] vpci/header: program p2m with guest BAR view
- To: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 2 Feb 2022 12:11:54 +0100
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "julien@xxxxxxx" <julien@xxxxxxx>, "sstabellini@xxxxxxxxxx" <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <Oleksandr_Tyshchenko@xxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Artem Mygaiev <Artem_Mygaiev@xxxxxxxx>, "andrew.cooper3@xxxxxxxxxx" <andrew.cooper3@xxxxxxxxxx>, "george.dunlap@xxxxxxxxxx" <george.dunlap@xxxxxxxxxx>, "paul@xxxxxxx" <paul@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Rahul Singh <rahul.singh@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Wed, 02 Feb 2022 11:12:05 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 02.02.2022 11:44, Oleksandr Andrushchenko wrote:
> Again, IMO, adding such a big piece of DEBUG code instead of
> printing a single DEBUG message could be a bit expansive.
> I still hear your concerns on *when* it is printed, but still think we can
> allow that.
You do realize though that the mere act of logging a message may cause
the need for preemption, and hence logging messages in such cases is
detrimental to forward progress?
Jan
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