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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>,
	xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [Xen-devel] Xen crash after S3 suspend - Xen 4.13
Date: Wed, 18 Mar 2020 14:50:52 +0000	[thread overview]
Message-ID: <fa845540-fd8e-bc63-a3af-50673dede579@citrix.com> (raw)
In-Reply-To: <20200318141635.GW7869@mail-itl>

On 18/03/2020 14:16, Marek Marczykowski-Górecki wrote:
> Hi,
>
> In my test setup (inside KVM with nested virt enabled), I rather
> frequently get Xen crash on resume from S3. Full message below.
>
> This is Xen 4.13.0, with some patches, including "sched: fix resuming
> from S3 with smt=0".
>
> Contrary to the previous issue, this one does not happen always - I
> would say in about 40% cases on this setup, but very rarely on physical
> setup.
>
> This is _without_ core scheduling enabled, and also with smt=off.
>
> Do you think it would be any different on xen-unstable? I cat try, but
> it isn't trivial in this setup, so I'd ask first.
>
>
> (XEN) Xen BUG at sched_credit2.c:3474
> (XEN) ----[ Xen-4.13.0  x86_64  debug=n   Not tainted ]----

Any chance you can reproduce with a debug build?

There is a good chance that an assertion might fire earlier than this BUG().

~Andrew


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  reply	other threads:[~2020-03-18 14:51 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18 14:16 [Xen-devel] Xen crash after S3 suspend - Xen 4.13 Marek Marczykowski-Górecki
2020-03-18 14:50 ` Andrew Cooper [this message]
2020-03-18 22:10   ` Marek Marczykowski-Górecki
2020-03-19  0:28     ` Dario Faggioli
2020-03-19  0:59       ` Marek Marczykowski-Górecki
2020-03-23  0:09       ` Marek Marczykowski-Górecki
2020-03-23  8:14         ` Jan Beulich
2020-09-29 14:27         ` Marek Marczykowski-Górecki
2020-09-29 15:07           ` Jürgen Groß
2020-09-29 15:16             ` Marek Marczykowski-Górecki
2020-09-29 15:27               ` Jürgen Groß
2021-01-31  2:15                 ` [Xen-devel] Xen crash after S3 suspend - Xen 4.13 and newer Marek Marczykowski-Górecki
2021-10-09 16:28                   ` Marek Marczykowski-Górecki
2022-08-21 16:14                     ` Marek Marczykowski-Górecki
2022-08-22  9:53                       ` Jan Beulich
2022-08-22 10:00                         ` Marek Marczykowski-Górecki
2022-09-20 10:22                           ` Marek Marczykowski-Górecki
2022-09-20 14:30                             ` Jan Beulich
2022-10-11 11:22                               ` Marek Marczykowski-Górecki
2022-10-14 16:42                             ` George Dunlap
2022-10-21  6:41                             ` Juergen Gross
2022-08-22 15:34                       ` Juergen Gross
2022-09-06 11:46                         ` Juergen Gross
2022-09-06 12:35                           ` Marek Marczykowski-Górecki
2022-09-07 12:21                             ` Dario Faggioli
2022-09-07 15:07                               ` marmarek

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