https://bugzilla.kernel.org/show_bug.cgi?id=217764
Bug ID: 217764
Summary: nouveau: system hangs when changing pstate on GeForce
GT 320M (NVAF (MCP89))
Product: Drivers
Version: 2.5
Hardware: i386
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Video(DRI - non Intel)
Assignee: drivers_video-...@kernel-bugs.osdl.org
Reporter: dsw...@outlook.com
Regression: No
Created attachment 304780
--> https://bugzilla.kernel.org/attachment.cgi?id=304780&action=edit
Crash log
System hangs after pstate is changed with /sys/kernel/debug/dri/0/pstate
interface to any option (like 0f). It hangs sometimes right after changing, and
sometimes after few moments. According to kernel log it seems it attempts to
divide by zero for some reason in gt215_clk_info
(drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.c) and fails with divide by zero
interrupt which causes system to hang. It happens on MacbookPro7,1 (Macbook Pro
13 inch Mid 2010) with NVIDIA GeForce GT 320M on Fedora 38 with Linux version
6.4.7-200.fc38.x86_64.
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