[Bug 150731] amdgpu: segfault on unbind in sysfs; card becomes nonresponsive
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Thu Jun 8 14:27:20 UTC 2017
https://bugzilla.kernel.org/show_bug.cgi?id=150731
Luke A. Guest (laguest at archeia.com) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |laguest at archeia.com
--- Comment #11 from Luke A. Guest (laguest at archeia.com) ---
I can confirm that the OS completely hangs when unbinding R9 380 (Tonga Pro)
with X running. Works fine with X off.
I have amdgpu and vfio-pci both in kernel, used the following to unbind it.
#!/bin/bash
for dev in "$@"; do
vendor=$(cat /sys/bus/pci/devices/$dev/vendor)
device=$(cat /sys/bus/pci/devices/$dev/device)
if [ -e /sys/bus/pci/devices/$dev/driver ]; then
echo $dev > /sys/bus/pci/devices/$dev/driver/unbind
fi
echo $vendor $device > /sys/bus/pci/drivers/vfio-pci/new_id
done
lspci -nnk shows:
03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Tonga PRO [Radeon R9 285/380] [1002:6939] (rev f1)
Subsystem: PC Partner Limited / Sapphire Technology Radeon R9 380 Nitro
4G D5 [174b:e308]
Kernel driver in use: vfio-pci
03:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Tonga HDMI
Audio [Radeon R9 285/380] [1002:aad8]
Subsystem: PC Partner Limited / Sapphire Technology Radeon R9 285/380
HDMI Audio [174b:aad8]
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel
--
You are receiving this mail because:
You are watching the assignee of the bug.
More information about the dri-devel
mailing list