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

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

The following reply was made to PR kern/57199; it has been noted by GNATS.

From: Brad Spencer <brad%anduin.eldar.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
Subject: Re: port-xen/57199: Pure PVH i386 guests hang on disk activity
Date: Tue, 16 Jul 2024 08:23:11 -0400

 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