From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 102322] System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung! Date: Thu, 28 Jun 2018 22:56:03 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0123080715==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 8ED546EDCC for ; Thu, 28 Jun 2018 22:56:03 +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 --===============0123080715== Content-Type: multipart/alternative; boundary="15302265631.5f3F8A1.16683" Content-Transfer-Encoding: 7bit --15302265631.5f3F8A1.16683 Date: Thu, 28 Jun 2018 22:56:03 +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=3D102322 --- Comment #20 from dwagner --- (In reply to Andrey Grodzovsky from comment #19) > No need to recompile, just need to see what is the content of SDMA ring > buffer when the hang occurs. >=20 > Clone and build our register analyzer from here - > https://cgit.freedesktop.org/amd/umr/ and once the hang happens just run= =20 >=20 > sudo umr -lb > sudo umr -R gfx[.] > sudo umr -R sdma0[.] > sudo umr -R sdma1[.] >=20 > I will probably need more info later but let's try this first. How can I run "umr" on a crashed system? I guess those register values are retained over a press of the reset button / reboot? --=20 You are receiving this mail because: You are the assignee for the bug.= --15302265631.5f3F8A1.16683 Date: Thu, 28 Jun 2018 22:56:03 +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

Comme= nt # 20 on bug 10232= 2 from dwagner 
(In reply to Andrey Grodzovsky from comment #19)
> No need to recompile, just need to see what is t=
he content of SDMA ring
> buffer when the hang occurs.
>=20
> Clone and build our register analyzer from here -
> https://cgit.freedes=
ktop.org/amd/umr/ and once the hang happens just run=20
>=20
> sudo umr -lb
> sudo umr -R gfx[.]
> sudo umr -R sdma0[.]
> sudo umr -R sdma1[.]
>=20
> I will probably need more info later but let's try this first.

How can I run "umr" on a crashed system? I guess those register v=
alues are
retained over a press of the reset button / reboot?

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