Bug 217764 - nouveau: system hangs when changing pstate on GeForce GT 320M (NVAF (MCP89))
Summary: nouveau: system hangs when changing pstate on GeForce GT 320M (NVAF (MCP89))
Status: RESOLVED ANSWERED
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: i386 Linux
: P3 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-08-04 21:19 UTC by dswdev
Modified: 2023-08-05 10:50 UTC (History)
0 users

See Also:
Kernel Version:
Subsystem:
Regression: No
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Crash log (5.04 KB, text/plain)
2023-08-04 21:19 UTC, dswdev 		Details
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Description dswdev 2023-08-04 21:19:41 UTC 
Created attachment 304780 [details]
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.
Comment 1 Artem S. Tashkinov 2023-08-05 08:08:59 UTC 
Please report here instead:

https://gitlab.freedesktop.org/drm/nouveau/-/issues/
Comment 2 dswdev 2023-08-05 10:50:18 UTC 
Sure, thank you for answer.
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