From: Jan Beulich <jbeulich@suse.com>
To: Manuel Bouyer <bouyer@antioche.eu.org>
Cc: xen-devel@lists.xenproject.org, "Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: NetBSD dom0 PVH: hardware interrupts stalls
Date: Tue, 24 Nov 2020 15:09:55 +0100 [thread overview]
Message-ID: <6d6a77cf-58de-4e4d-ed75-e9365be060b7@suse.com> (raw)
In-Reply-To: <20201124135948.GL2020@antioche.eu.org>
On 24.11.2020 14:59, Manuel Bouyer wrote:
> On Tue, Nov 24, 2020 at 01:21:02PM +0100, Roger Pau Monné wrote:
>> [...]
>>> What we're missing is LAPIC information, since the masked status logged
>>> is unclear: (-MM) isn't fully matching up with "mask=0". But of course
>>> the former is just a software representation, while the latter is what
>>> the RTE holds. IOW for the interrupt to not get delivered, there needs
>>> to be this or a higher ISR bit set (considering we don't use the TPR),
>>> or (I think we can pretty much exclude this) we'd need to be running
>>> with IRQs off for extended periods of time.
>>
>> Let's dump the physical lapic(s) IRR and ISR together with the
>> IO-APIC state. Can you please apply the following patch and use the
>> 'i' key again? (please keep the previous patch applied)
>
> Done, you'll find the log at
> http://www-soc.lip6.fr/~bouyer/xen-log6.txt
Hmm, I can't spot respective output. Are you sure you did this with
a hypervisor with Roger's latest patch in place?
Jan
next prev parent reply other threads:[~2020-11-24 14:10 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 15:09 NetBSD dom0 PVH: hardware interrupts stalls Manuel Bouyer
2020-11-17 15:58 ` Roger Pau Monné
2020-11-17 16:40 ` Manuel Bouyer
2020-11-18 8:57 ` Roger Pau Monné
2020-11-18 9:24 ` Manuel Bouyer
2020-11-18 10:00 ` Roger Pau Monné
2020-11-18 12:14 ` Manuel Bouyer
2020-11-18 14:39 ` Roger Pau Monné
2020-11-18 14:59 ` Jan Beulich
2020-11-19 14:19 ` Roger Pau Monné
2020-11-19 15:57 ` Manuel Bouyer
2020-11-19 16:57 ` Manuel Bouyer
2020-11-19 17:57 ` Manuel Bouyer
2020-11-20 8:09 ` Jan Beulich
2020-11-20 8:28 ` Roger Pau Monné
2020-11-20 8:52 ` Manuel Bouyer
2020-11-20 8:59 ` Jan Beulich
2020-11-20 9:27 ` Manuel Bouyer
2020-11-20 10:00 ` Jan Beulich
2020-11-20 10:38 ` Manuel Bouyer
2020-11-23 9:57 ` Roger Pau Monné
2020-11-23 11:32 ` Manuel Bouyer
2020-11-23 12:51 ` Roger Pau Monné
2020-11-23 14:31 ` Manuel Bouyer
2020-11-23 17:06 ` Roger Pau Monné
2020-11-23 17:39 ` Manuel Bouyer
2020-11-24 10:05 ` Jan Beulich
2020-11-24 12:21 ` Roger Pau Monné
2020-11-24 13:59 ` Manuel Bouyer
2020-11-24 14:09 ` Jan Beulich [this message]
2020-11-24 14:27 ` Manuel Bouyer
2020-11-24 14:33 ` Jan Beulich
2020-11-24 14:36 ` Jan Beulich
2020-11-24 14:52 ` Jan Beulich
2020-11-24 15:00 ` Roger Pau Monné
2020-11-24 15:08 ` Manuel Bouyer
2020-11-24 15:49 ` Roger Pau Monné
2020-11-24 16:09 ` Manuel Bouyer
2020-11-26 13:34 ` Roger Pau Monné
2020-11-26 14:16 ` Manuel Bouyer
2020-11-26 14:26 ` Roger Pau Monné
2020-11-26 15:09 ` Roger Pau Monné
2020-11-26 17:20 ` Manuel Bouyer
2020-11-27 10:59 ` Roger Pau Monné
2020-11-27 11:18 ` Jan Beulich
2020-11-27 11:19 ` Manuel Bouyer
2020-11-27 11:21 ` Jan Beulich
2020-11-27 13:10 ` Manuel Bouyer
2020-11-27 13:14 ` Jan Beulich
2020-11-27 13:18 ` Manuel Bouyer
2020-11-27 11:29 ` Jan Beulich
2020-11-27 13:13 ` Manuel Bouyer
2020-11-27 13:18 ` Jan Beulich
2020-11-27 13:31 ` Manuel Bouyer
2020-11-27 13:40 ` Jan Beulich
2020-11-27 13:49 ` Jürgen Groß
2020-11-27 13:59 ` Manuel Bouyer
2020-11-27 20:22 ` Roger Pau Monné
2020-11-27 21:44 ` Manuel Bouyer
2020-11-28 14:53 ` Roger Pau Monné
2020-11-28 17:14 ` Manuel Bouyer
2020-11-29 9:23 ` Manuel Bouyer
2020-11-30 10:00 ` Jan Beulich
2020-11-30 10:28 ` Manuel Bouyer
2020-11-30 11:35 ` Manuel Bouyer
2020-11-30 11:44 ` Jan Beulich
2020-11-30 11:50 ` Manuel Bouyer
2020-11-30 12:09 ` Jan Beulich
2020-11-24 14:42 ` Jan Beulich
2020-11-24 14:59 ` Roger Pau Monné
2020-11-24 15:18 ` Manuel Bouyer
2020-11-24 15:23 ` Jürgen Groß
2020-11-20 8:54 ` Jan Beulich
2020-11-20 9:13 ` Manuel Bouyer
2020-11-23 9:49 ` Roger Pau Monné
2020-11-18 15:03 ` Manuel Bouyer
2020-11-18 9:16 ` Jan Beulich
2020-11-18 9:28 ` Manuel Bouyer
2020-11-18 9:43 ` Jan Beulich
2020-11-18 10:14 ` Manuel Bouyer
2020-11-18 11:17 ` Jan Beulich
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