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 at lists.freedesktop.org
Reporter: rsalvaterra at 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.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/dri-devel/attachments/20160419/f9dc0190/attachment.html>
