From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 99312] Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini when radeon.lockup_timeout is enabled Date: Mon, 09 Jan 2017 17:02:43 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0303932742==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 4AF656E1CA for ; Mon, 9 Jan 2017 17:02:43 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0303932742== Content-Type: multipart/alternative; boundary="14839813630.551C.11706"; charset="UTF-8" --14839813630.551C.11706 Date: Mon, 9 Jan 2017 17:02:43 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D99312 Vedran Mileti=C4=87 changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Long-running OpenCL kernels |Long-running OpenCL kernels |cause ring stalls and GPU |cause ring stalls and GPU |lockups on Kabini |lockups on Kabini when | |radeon.lockup_timeout is | |enabled --- Comment #2 from Vedran Mileti=C4=87 --- (In reply to John Bridgman from comment #1) > If you have not already done so, try disabling the watchdog timer: >=20 >=20 > MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default 10000= =3D > 10 seconds, 0 =3D disable)"); > module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444); >=20 Yup, that works around the problem. > As part of HSA/ROC development we dropped the priority of compute work > relative to graphics which improved interactivity and *almost* eliminated > timeouts without having to disable the timer - when I get back in the > office I'll dig up the changes. In the meantime, I think disabling the ti= mer > will do what you need although you will still have sluggish graphics while > long-running kernels are active. >=20 Eager to hear the details. --=20 You are receiving this mail because: You are the assignee for the bug.= --14839813630.551C.11706 Date: Mon, 9 Jan 2017 17:02:43 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated Vedran Mileti=C4=87 changed bug 99312<= /a>
What Removed Added
Summary Long-running OpenCL kernels cause ring stalls and GPU lockup= s on Kabini Long-running OpenCL kernels cause ring stalls and GPU lockup= s on Kabini when radeon.lockup_timeout is enabled

Comment= # 2 on bug 99312<= /a> from Vedran Mileti=C4=87 
(In reply to John Bridgman from comment #1)
> If you have not already done so, try disabling t=
he watchdog timer:
>=20
>=20
> MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defau=
lt 10000 =3D
> 10 seconds, 0 =3D disable)");
> module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
> 

Yup, that works around the problem.

> As part of HSA/ROC development we dropped the pr=
iority of compute work
> relative to graphics which improved interactivity and *almost* elimina=
ted
> timeouts without having to disable the timer  - when I get back in the
> office I'll dig up the changes. In the meantime, I think disabling the=
 timer
> will do what you need although you will still have sluggish graphics w=
hile
> long-running kernels are active.
> 

Eager to hear the details.

You are receiving this mail because:
  • You are the assignee for the bug.
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