From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 95015] [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD) Date: Tue, 19 Apr 2016 10:25:07 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0571086011==" 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 8734C6E70C for ; Tue, 19 Apr 2016 10:25:07 +0000 (UTC) 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 --===============0571086011== Content-Type: multipart/alternative; boundary="14610615070.7BdDf9E.23402"; charset="UTF-8" --14610615070.7BdDf9E.23402 Date: Tue, 19 Apr 2016 10:25:07 +0000 MIME-Version: 1.0 Content-Type: text/plain https://bugs.freedesktop.org/show_bug.cgi?id=95015 Bug ID: 95015 Summary: [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD) Product: DRI Version: XOrg git Hardware: PowerPC OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: rsalvaterra@gmail.com Created attachment 123045 --> https://bugs.freedesktop.org/attachment.cgi?id=123045&action=edit dmesg Full dmesg attached. I have a Power Mac G5 (late 2005, PCIe) with a Radeon HD 6450 (CAICOS, x86 BIOS) installed on the PCIe x16 slot, and I get this error on boot. I also have a GeForce 6600 (Open Firmware) on a PCIe x8 slot, which works fine, minus the usual nouveau caveats. I have no idea if this is related at all, but the x16 slot is directly connected to the U4 northbridge, and is capable of bypassing the DART IOMMU for 64-bit DMA capable devices (like the Radeon). The other slots are connected to a PCIe bridge on the HyperTransport bus, and DMA always goes through the DART. If needed, I can provide ssh access to the machine. -- You are receiving this mail because: You are the assignee for the bug. --14610615070.7BdDf9E.23402 Date: Tue, 19 Apr 2016 10:25:07 +0000 MIME-Version: 1.0 Content-Type: text/html
Bug ID 95015
Summary [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)
Product DRI
Version XOrg git
Hardware PowerPC
OS Linux (All)
Status NEW
Severity major
Priority medium
Component DRM/Radeon
Assignee dri-devel@lists.freedesktop.org
Reporter rsalvaterra@gmail.com 

Created attachment 123045 [details]
dmesg

Full dmesg attached. I have a Power Mac G5 (late 2005, PCIe) with a Radeon HD
6450 (CAICOS, x86 BIOS) installed on the PCIe x16 slot, and I get this error on
boot. I also have a GeForce 6600 (Open Firmware) on a PCIe x8 slot, which works
fine, minus the usual nouveau caveats. I have no idea if this is related at
all, but the x16 slot is directly connected to the U4 northbridge, and is
capable of bypassing the DART IOMMU for 64-bit DMA capable devices (like the
Radeon). The other slots are connected to a PCIe bridge on the HyperTransport
bus, and DMA always goes through the DART. If needed, I can provide ssh access
to the machine.

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