https://bugzilla.kernel.org/show_bug.cgi?id=199653
Bug ID: 199653 Summary: [AMDGPU][DC] BUG: unable to handle kernel NULL pointer dereference (trace decoded) Product: Drivers Version: 2.5 Kernel Version: drm-next-4.18-wip (agd5f, AMDGPU) Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: marcus.husar@gmail.com Regression: No
Created attachment 275827 --> https://bugzilla.kernel.org/attachment.cgi?id=275827&action=edit Call trace of crash decoded with decode_stacktrace.sh
kernel: BUG: unable to handle kernel NULL pointer dereference at 00000000000002e4
This happens multiple times a day on my machine. It leads to a complete system freeze. Yesterday I was lucky and got a stack trace.
It mostly happens browsing the web with Firefox (WebRender enabled, XWayland, Gnome-Shell) when the cursor moves or rotates. But it can happen anywhere and anytime.
The used kernel is from branch drm-next-4.18-wip@92fb374 of Alex Deucher, AMD (agd5f). See: git://people.freedesktop.org/~agd5f/linux.
My machine: * Hardware name: Acer Swift SF315-41/Becks_RR, BIOS V1.04 01/09/2018 * Ryzen Mobile 2500U * Firmware: VCN: 1.73 (latest available version) * My kernel is tainted because the i2c designware driver emits a warning during boot. This should be unrelated to AMDGPU (see attachment i2c_designware_trace.txt).
Please ask if anything else is needed.