Bug 209673 - divide_error in amdgpu freezes screen
Summary: divide_error in amdgpu freezes screen
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-10-14 08:38 UTC by cornelius.riemenschneider
Modified: 2020-10-19 10:35 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.9.0
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg.txt (5.21 KB, text/plain)
2020-10-14 08:38 UTC, cornelius.riemenschneider 		Details
crashing dmesg #1 (162.31 KB, text/plain)
2020-10-15 19:36 UTC, cornelius.riemenschneider 		Details
crashing dmesg #2 (189.28 KB, text/plain)
2020-10-15 19:36 UTC, cornelius.riemenschneider 		Details
crashing dmesg #3 (200.75 KB, text/plain)
2020-10-15 19:36 UTC, cornelius.riemenschneider 		Details
crashing dmesg #4 (193.65 KB, text/plain)
2020-10-16 08:54 UTC, cornelius.riemenschneider 		Details
crashing dmesg #5 (155.96 KB, text/plain)
2020-10-16 12:01 UTC, cornelius.riemenschneider 		Details
crashing dmesg #6 (155.31 KB, text/plain)
2020-10-16 12:01 UTC, cornelius.riemenschneider 		Details
crashing dmesg #7 (396.14 KB, text/plain)
2020-10-19 10:35 UTC, cornelius.riemenschneider 		Details
Add an attachment (proposed patch, testcase, etc.)

Description cornelius.riemenschneider 2020-10-14 08:38:40 UTC 
Created attachment 292959 [details]
dmesg.txt

Today, my freeze froze spontaneously while browsing the web with firefox.
I am using a Lenovo T14s with AMD Rzyen 4750U (internal GPU) with amdgpu, one external screen connected to a USB-C docking station.
The system had an uptime of ~3 hours.

I attached the dmesg output from the time of the crash, let me know if you need more information to debug this issue.
Comment 1 cornelius.riemenschneider 2020-10-14 08:41:47 UTC 
Xorg.0.log.old (the log that should contain the output of the crashed X server) is unfortunately empty.
Comment 2 Alex Deucher 2020-10-15 15:37:59 UTC 
Please attach your full dmesg output.  What kernel are you running?
Comment 3 cornelius.riemenschneider 2020-10-15 19:35:36 UTC 
Kernel is 5.8.14-arch1-1.

I attached three dmesg outputs of the last two days, where each time the amdgpu driver seemed to cause a divide_error, and the screen froze.
Audio playback, and in one case, video encoding (zoom call) continued working until I reset the system via the SysRq keys.
Comment 4 cornelius.riemenschneider 2020-10-15 19:36:06 UTC 
Created attachment 292995 [details]
crashing dmesg #1
Comment 5 cornelius.riemenschneider 2020-10-15 19:36:17 UTC 
Created attachment 292997 [details]
crashing dmesg #2
Comment 6 cornelius.riemenschneider 2020-10-15 19:36:32 UTC 
Created attachment 292999 [details]
crashing dmesg #3
Comment 7 cornelius.riemenschneider 2020-10-16 08:54:49 UTC 
Created attachment 293011 [details]
crashing dmesg #4

And it crashed again.
Comment 8 cornelius.riemenschneider 2020-10-16 12:01:16 UTC 
Created attachment 293035 [details]
crashing dmesg #5

I compiled my own 5.9.0 kernel without any arch linux specific patches, and just had two crashes (#5 and 6) within 10 minutes.
Comment 9 cornelius.riemenschneider 2020-10-16 12:01:29 UTC 
Created attachment 293037 [details]
crashing dmesg #6
Comment 10 cornelius.riemenschneider 2020-10-19 10:35:30 UTC 
Created attachment 293057 [details]
crashing dmesg #7
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