From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Dario Faggioli <dario.faggioli@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
Steve Capper <Steve.Capper@arm.com>,
Tianyang Chen <tiche@seas.upenn.edu>,
George Dunlap <george.dunlap@citrix.com>,
Julien Grall <julien.grall@arm.com>,
Meng Xu <mengxu@cis.upenn.edu>,
Varun.Swara@arm.com, xen-devel@lists.xenproject.org
Subject: Re: [PATCH for 4.7 0/4] Assorted scheduling fixes
Date: Tue, 3 May 2016 21:26:17 -0400 [thread overview]
Message-ID: <20160504012617.GC29883@char.us.oracle.com> (raw)
In-Reply-To: <146231184906.25631.6550047090421454264.stgit@Solace.fritz.box>
On Tue, May 03, 2016 at 11:46:27PM +0200, Dario Faggioli wrote:
> Hi,
>
> This small series contains some bugfixes for various schedulers. They're all
> bugfixes, so I think all should be considered for 4.7. Here's some more
> detailed analysis.
>
> Patch 1 and 3 are for Credit2. Patch 1 is a lot more important, as we have an
> ASSERT triggering without it. Patch 2 is behavioral fixing, which I believe it
> is important, but at least does not make anything explode.
>
> Patch 2 fixes another ASSERT, in case a pCPU fails to come up. This is what
> Julien reported here:
>
> https://www.mail-archive.com/xen-devel@lists.xen.org/msg65918.html
>
> Julien, the patch is very very similar to the one attached to one of my reply
> in that thread, but I had to change some small bits... Can you please re-test
> it?
I tested it. It does not crash anymore. However I see this:
(XEN) CPU1 never came online
(XEN) Failed to bring up CPU 1 (error -5)
(XEN) Bringing up CPU2
(XEN) CPU2 never came online
(XEN) Failed to bring up CPU 2 (error -5)
(XEN) Bringing up CPU3
(XEN) CPU3 never came online
(XEN) Failed to bring up CPU 3 (error -5)
(XEN) Brought up 1 CPUs
Which is not very reassuring. I don't know if that is expected.
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next prev parent reply other threads:[~2016-05-04 1:26 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-03 21:46 [PATCH for 4.7 0/4] Assorted scheduling fixes Dario Faggioli
2016-05-03 21:46 ` [PATCH for 4.7 1/4] xen: sched: avoid spuriously re-enabling IRQs in csched2_switch_sched() Dario Faggioli
2016-05-04 8:48 ` Jan Beulich
2016-05-04 9:08 ` Dario Faggioli
2016-05-04 15:11 ` George Dunlap
2016-05-04 15:58 ` Dario Faggioli
2016-05-04 17:05 ` George Dunlap
2016-05-04 17:21 ` Dario Faggioli
2016-05-04 17:34 ` George Dunlap
2016-05-06 13:21 ` Dario Faggioli
2016-05-06 13:48 ` Wei Liu
2016-05-09 14:42 ` George Dunlap
2016-05-03 21:46 ` [PATCH for 4.7 2/4] xen: sched: fix killing an uninitialized timer in free_pdata Dario Faggioli
2016-05-04 15:25 ` George Dunlap
2016-05-03 21:46 ` [PATCH for 4.7 3/4] xen: credit2: fix 2 (minor) issues in load tracking logic Dario Faggioli
2016-05-04 15:38 ` George Dunlap
2016-05-03 21:46 ` [PATCH for 4.7 4/4] xen: adopt .deinit_pdata and improve timer handling Dario Faggioli
2016-05-04 15:51 ` George Dunlap
2016-05-04 15:53 ` Meng Xu
2016-05-06 23:05 ` Dario Faggioli
2016-05-07 21:19 ` Meng Xu
2016-05-08 3:12 ` Meng Xu
2016-05-09 8:07 ` Juergen Gross
2016-05-09 13:22 ` Dario Faggioli
2016-05-09 14:08 ` Meng Xu
2016-05-09 14:52 ` Dario Faggioli
2016-05-09 14:58 ` Meng Xu
2016-05-09 14:46 ` George Dunlap
2016-05-09 14:58 ` Wei Liu
2016-05-09 15:35 ` George Dunlap
2016-05-04 1:26 ` Konrad Rzeszutek Wilk [this message]
2016-05-04 9:06 ` [PATCH for 4.7 0/4] Assorted scheduling fixes Dario Faggioli
2016-05-05 12:00 ` Julien Grall
2016-05-05 12:38 ` Dario Faggioli
2016-05-04 15:53 ` George Dunlap
2016-05-04 16:04 ` Wei Liu
2016-05-07 21:23 ` Meng Xu
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