Re: port-xen/57199: Pure PVH i386 guests hang on disk activity

[Brad Spencer <brad%anduin.eldar.org@localhost>]

Manuel Bouyer <bouyer%antioche.eu.org@localhost> writes:

> The following reply was made to PR kern/57199; it has been noted by GNATS.
>
> From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
> To: gnats-bugs%netbsd.org@localhost
> Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost,
>         brad%anduin.eldar.org@localhost
> Subject: Re: port-xen/57199: Pure PVH i386 guests hang on disk activity
> Date: Tue, 16 Jul 2024 10:58:38 +0200
>
>  On Mon, Jul 15, 2024 at 06:30:03PM +0000, Taylor R Campbell wrote:
>  >  The attached patch implements this approach, and leaves extensive
>  >  comments explaining what's going on, without issuing any unnecessary
>  >  mfence/lfence/sfence instructions.  Can you try it out?
>  
>  This patch works for me, I couldn't reproduce the network hang and
>  the tar test also completed.
>  
>  please commit and request a pullup to netbsd-10
>  
>  -- 
>  Manuel Bouyer <bouyer%antioche.eu.org@localhost>
>       NetBSD: 26 ans d'experience feront toujours la difference
>  --
>  


Seconded..  and thanks very much for this fix.  I owe some folks drinks
for this one.  Much appreciated.


-- 
Brad Spencer - brad%anduin.eldar.org@localhost - KC8VKS - http://anduin.eldar.org