Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi, On 2/26/19 11:02 AM, Roger Pau Monné wrote: On Tue, Feb 26, 2019 at 10:26:21AM +, Julien Grall wrote: On 26/02/2019 10:17, Roger Pau Monné wrote: On Tue, Feb 26, 2019 at 10:03:38AM +, Julien Grall wrote: Hi Roger, On 26/02/2019 09:44, Roger Pau Monné wrote: On Tue, Feb 26, 2019

Re: [Xen-devel] xen/evtchn and forced threaded irq

On Tue, Feb 26, 2019 at 10:26:21AM +, Julien Grall wrote: > Hi, > > On 26/02/2019 10:17, Roger Pau Monné wrote: > > On Tue, Feb 26, 2019 at 10:03:38AM +, Julien Grall wrote: > > > Hi Roger, > > > > > > On 26/02/2019 09:44, Roger Pau Monné wrote: > > > > On Tue, Feb 26, 2019 at 09:30:07AM

Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi, On 26/02/2019 10:17, Roger Pau Monné wrote: On Tue, Feb 26, 2019 at 10:03:38AM +, Julien Grall wrote: Hi Roger, On 26/02/2019 09:44, Roger Pau Monné wrote: On Tue, Feb 26, 2019 at 09:30:07AM +, Andrew Cooper wrote: On 26/02/2019 09:14, Roger Pau Monné wrote: On Mon, Feb 25,

Re: [Xen-devel] xen/evtchn and forced threaded irq

On Tue, Feb 26, 2019 at 10:03:38AM +, Julien Grall wrote: > Hi Roger, > > On 26/02/2019 09:44, Roger Pau Monné wrote: > > On Tue, Feb 26, 2019 at 09:30:07AM +, Andrew Cooper wrote: > > > On 26/02/2019 09:14, Roger Pau Monné wrote: > > > > On Mon, Feb 25, 2019 at 01:55:42PM +, Julien

Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi Roger, On 26/02/2019 09:44, Roger Pau Monné wrote: On Tue, Feb 26, 2019 at 09:30:07AM +, Andrew Cooper wrote: On 26/02/2019 09:14, Roger Pau Monné wrote: On Mon, Feb 25, 2019 at 01:55:42PM +, Julien Grall wrote: Hi Oleksandr, On 25/02/2019 13:24, Oleksandr Andrushchenko wrote:

RE: [Xen-devel] xen/evtchn and forced threaded irq

ndrushchenko ; linux-kernel@vger.kernel.org; Jan Beulich > ; > xen-devel ; Boris Ostrovsky > ; Dave P > Martin > Subject: Re: [Xen-devel] xen/evtchn and forced threaded irq > > On 26/02/2019 09:14, Roger Pau Monné wrote: > > On Mon, Feb 25, 2019 at 01:55:42PM +, Julien Grall w

Re: [Xen-devel] xen/evtchn and forced threaded irq

On Tue, Feb 26, 2019 at 09:30:07AM +, Andrew Cooper wrote: > On 26/02/2019 09:14, Roger Pau Monné wrote: > > On Mon, Feb 25, 2019 at 01:55:42PM +, Julien Grall wrote: > >> Hi Oleksandr, > >> > >> On 25/02/2019 13:24, Oleksandr Andrushchenko wrote: > >>> On 2/22/19 3:33 PM, Julien Grall

Re: [Xen-devel] xen/evtchn and forced threaded irq

On 26/02/2019 09:14, Roger Pau Monné wrote: > On Mon, Feb 25, 2019 at 01:55:42PM +, Julien Grall wrote: >> Hi Oleksandr, >> >> On 25/02/2019 13:24, Oleksandr Andrushchenko wrote: >>> On 2/22/19 3:33 PM, Julien Grall wrote: Hi, On 22/02/2019 12:38, Oleksandr Andrushchenko wrote:

Re: [Xen-devel] xen/evtchn and forced threaded irq

On Mon, Feb 25, 2019 at 01:55:42PM +, Julien Grall wrote: > Hi Oleksandr, > > On 25/02/2019 13:24, Oleksandr Andrushchenko wrote: > > On 2/22/19 3:33 PM, Julien Grall wrote: > > > Hi, > > > > > > On 22/02/2019 12:38, Oleksandr Andrushchenko wrote: > > > > On 2/20/19 10:46 PM, Julien Grall

Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi Oleksandr, On 25/02/2019 14:08, Oleksandr Andrushchenko wrote: On 2/25/19 3:55 PM, Julien Grall wrote: Hi Oleksandr, On 25/02/2019 13:24, Oleksandr Andrushchenko wrote: On 2/22/19 3:33 PM, Julien Grall wrote: Hi, On 22/02/2019 12:38, Oleksandr Andrushchenko wrote: On 2/20/19 10:46 PM,

Re: [Xen-devel] xen/evtchn and forced threaded irq

On 2/25/19 3:55 PM, Julien Grall wrote: Hi Oleksandr, On 25/02/2019 13:24, Oleksandr Andrushchenko wrote: On 2/22/19 3:33 PM, Julien Grall wrote: Hi, On 22/02/2019 12:38, Oleksandr Andrushchenko wrote: On 2/20/19 10:46 PM, Julien Grall wrote: Discussing with my team, a solution that came up

Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi Oleksandr, On 25/02/2019 13:24, Oleksandr Andrushchenko wrote: On 2/22/19 3:33 PM, Julien Grall wrote: Hi, On 22/02/2019 12:38, Oleksandr Andrushchenko wrote: On 2/20/19 10:46 PM, Julien Grall wrote: Discussing with my team, a solution that came up would be to introduce one atomic field

Re: [Xen-devel] xen/evtchn and forced threaded irq

On 2/22/19 3:33 PM, Julien Grall wrote: Hi, On 22/02/2019 12:38, Oleksandr Andrushchenko wrote: On 2/20/19 10:46 PM, Julien Grall wrote: Discussing with my team, a solution that came up would be to introduce one atomic field per event to record the number of event received. I will explore

Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi, On 22/02/2019 12:38, Oleksandr Andrushchenko wrote: On 2/20/19 10:46 PM, Julien Grall wrote: Discussing with my team, a solution that came up would be to introduce one atomic field per event to record the number of event received. I will explore that solution tomorrow. How will this help

Re: [Xen-devel] xen/evtchn and forced threaded irq

On 2/20/19 10:46 PM, Julien Grall wrote: (+ Andrew and Jan for feedback on the event channel interrupt) Hi Boris, Thank you for the your feedback. On 2/20/19 8:04 PM, Boris Ostrovsky wrote: On 2/20/19 1:05 PM, Julien Grall wrote: Hi, On 20/02/2019 17:07, Boris Ostrovsky wrote: On 2/20/19

Re: xen/evtchn and forced threaded irq

>>> On 20.02.19 at 23:03, wrote: > On 2/20/19 9:46 PM, Boris Ostrovsky wrote: >> On 2/20/19 3:46 PM, Julien Grall wrote: >>> On 2/20/19 8:04 PM, Boris Ostrovsky wrote: On 2/20/19 1:05 PM, Julien Grall wrote: Some sort of a FIFO that stores {irq, data} tuple. It could obviously be

Re: [Xen-devel] xen/evtchn and forced threaded irq

Hi Roger, On 21/02/2019 09:14, Roger Pau Monné wrote: > On Thu, Feb 21, 2019 at 08:38:39AM +, Julien Grall wrote: >> Hi Roger, >> >> On Thu, 21 Feb 2019, 08:08 Roger Pau Monné, wrote: >> >>> FWIW, you can also mask the interrupt while waiting for the thread to >>> execute the interrupt

Re: [Xen-devel] xen/evtchn and forced threaded irq

On Thu, Feb 21, 2019 at 08:38:39AM +, Julien Grall wrote: > Hi Roger, > > On Thu, 21 Feb 2019, 08:08 Roger Pau Monné, wrote: > > > FWIW, you can also mask the interrupt while waiting for the thread to > > execute the interrupt handler. Ie: > > > > Thank you for providing steps, however

Re: [Xen-devel] xen/evtchn and forced threaded irq

On 21/02/2019 09:38, Julien Grall wrote: > Hi Roger, > > On Thu, 21 Feb 2019, 08:08 Roger Pau Monné, > wrote: > > FWIW, you can also mask the interrupt while waiting for the thread to > execute the interrupt handler. Ie: > > > Thank you for providing

Re: xen/evtchn and forced threaded irq

On 19/02/2019 18:31, Julien Grall wrote: > Hi all, > > I have been looking at using Linux RT in Dom0. Once the guest is started, > the console is ending to have a lot of warning (see trace below). > > After some investigation, this is because the irq handler will now be > threaded. > I can

Re: [Xen-devel] xen/evtchn and forced threaded irq

On Wed, Feb 20, 2019 at 10:03:57PM +, Julien Grall wrote: > Hi Boris, > > On 2/20/19 9:46 PM, Boris Ostrovsky wrote: > > On 2/20/19 3:46 PM, Julien Grall wrote: > > > (+ Andrew and Jan for feedback on the event channel interrupt) > > > > > > Hi Boris, > > > > > > Thank you for the your

Re: xen/evtchn and forced threaded irq

Hi Boris, On 2/20/19 9:46 PM, Boris Ostrovsky wrote: On 2/20/19 3:46 PM, Julien Grall wrote: (+ Andrew and Jan for feedback on the event channel interrupt) Hi Boris, Thank you for the your feedback. On 2/20/19 8:04 PM, Boris Ostrovsky wrote: On 2/20/19 1:05 PM, Julien Grall wrote: Hi, On

Re: xen/evtchn and forced threaded irq

On 2/20/19 3:46 PM, Julien Grall wrote: > (+ Andrew and Jan for feedback on the event channel interrupt) > > Hi Boris, > > Thank you for the your feedback. > > On 2/20/19 8:04 PM, Boris Ostrovsky wrote: >> On 2/20/19 1:05 PM, Julien Grall wrote: >>> Hi, >>> >>> On 20/02/2019 17:07, Boris Ostrovsky

Re: xen/evtchn and forced threaded irq

(+ Andrew and Jan for feedback on the event channel interrupt) Hi Boris, Thank you for the your feedback. On 2/20/19 8:04 PM, Boris Ostrovsky wrote: On 2/20/19 1:05 PM, Julien Grall wrote: Hi, On 20/02/2019 17:07, Boris Ostrovsky wrote: On 2/20/19 9:15 AM, Julien Grall wrote: Hi Boris,

Re: xen/evtchn and forced threaded irq

On 2/20/19 1:05 PM, Julien Grall wrote: > Hi, > > On 20/02/2019 17:07, Boris Ostrovsky wrote: >> On 2/20/19 9:15 AM, Julien Grall wrote: >>> Hi Boris, >>> >>> Thank you for your answer. >>> >>> On 20/02/2019 00:02, Boris Ostrovsky wrote: On Tue, Feb 19, 2019 at 05:31:10PM +, Julien Grall

Re: xen/evtchn and forced threaded irq

Hi, On 20/02/2019 17:07, Boris Ostrovsky wrote: On 2/20/19 9:15 AM, Julien Grall wrote: Hi Boris, Thank you for your answer. On 20/02/2019 00:02, Boris Ostrovsky wrote: On Tue, Feb 19, 2019 at 05:31:10PM +, Julien Grall wrote: Hi all, I have been looking at using Linux RT in Dom0.

Re: xen/evtchn and forced threaded irq

On 2/20/19 9:15 AM, Julien Grall wrote: > Hi Boris, > > Thank you for your answer. > > On 20/02/2019 00:02, Boris Ostrovsky wrote: >> On Tue, Feb 19, 2019 at 05:31:10PM +, Julien Grall wrote: >>> Hi all, >>> >>> I have been looking at using Linux RT in Dom0. Once the guest is >>> started, >>>

Re: xen/evtchn and forced threaded irq

Hi Boris, Thank you for your answer. On 20/02/2019 00:02, Boris Ostrovsky wrote: On Tue, Feb 19, 2019 at 05:31:10PM +, Julien Grall wrote: Hi all, I have been looking at using Linux RT in Dom0. Once the guest is started, the console is ending to have a lot of warning (see trace below).

Re: xen/evtchn and forced threaded irq

On Tue, Feb 19, 2019 at 05:31:10PM +, Julien Grall wrote: > Hi all, > > I have been looking at using Linux RT in Dom0. Once the guest is started, > the console is ending to have a lot of warning (see trace below). > > After some investigation, this is because the irq handler will now be >

xen/evtchn and forced threaded irq

Hi all, I have been looking at using Linux RT in Dom0. Once the guest is started, the console is ending to have a lot of warning (see trace below). After some investigation, this is because the irq handler will now be threaded. I can reproduce the same error with the vanilla Linux when passing