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Re: [PATCH v2 01/12] xen/trace: Don't over-read trace objects
- To: Jan Beulich <JBeulich@xxxxxxxx>, "andrew.cooper3@xxxxxxxxxx" <andrew.cooper3@xxxxxxxxxx>
- From: Dario Faggioli <dfaggioli@xxxxxxxx>
- Date: Fri, 24 Sep 2021 14:35:37 +0000
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- Cc: "julien@xxxxxxx" <julien@xxxxxxx>, "George.Dunlap@xxxxxxxxxxxxx" <George.Dunlap@xxxxxxxxxxxxx>, "sstabellini@xxxxxxxxxx" <sstabellini@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "iwj@xxxxxxxxxxxxxx" <iwj@xxxxxxxxxxxxxx>, "wl@xxxxxxx" <wl@xxxxxxx>, "mengxu@xxxxxxxxxxxxx" <mengxu@xxxxxxxxxxxxx>
- Delivery-date: Fri, 24 Sep 2021 14:36:01 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHXrkSLbMGUvlBXkkK2FQ1vuFXyFauuDj2AgAC3ywCAANyhAIAAY+SAgAM/yQA=
- Thread-topic: [PATCH v2 01/12] xen/trace: Don't over-read trace objects
On Wed, 2021-09-22 at 13:58 +0100, Andrew Cooper wrote:
> On 22/09/2021 08:01, Jan Beulich wrote:
>
> >
> > Agreed. Whether the truncation is an issue in practice is
> > questionable,
> > as I wouldn't expect budget to be consumed in multiple-second
> > individual
> > steps. But I didn't check whether this scheduler might allow a vCPU
> > to
> > run for this long all in one go.
>
> I expect it's marginal too.
>
It is indeed.
> Honestly, its not a bug I care to fix right
> about now. I could leave a /* TODO: truncation? */ in place so
> whomever
> encounters weird behaviour from this trace record has a bit more help
> of
> where to look?
>
Sure, that's fine for me.
Thanks and Regards
--
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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