Bug 201035 - I2C bus probing crash on OpenChrome DRM
Summary: I2C bus probing crash on OpenChrome DRM
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: x86-64 Linux
: P1 blocking
Assignee: drivers_video-dri
URL: https://cgit.freedesktop.org/openchro...
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-06 18:34 UTC by Kevin Brace
Modified: 2018-09-06 18:38 UTC (History)
0 users

See Also:
Kernel Version: 4.19 rc1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
kern.log for VIA Embedded EPIA-M830 mainboard (596.90 KB, text/plain)
2018-09-06 18:38 UTC, Kevin Brace 		Details
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Description Kevin Brace 2018-09-06 18:34:52 UTC 
OpenChrome DRM was working fine (i.e., able to normally boot Xubuntu 16.04) until DRM maintainer's version of Linux 4.18 rc4.
When I upgraded to Linux 4.18 rc7, it stopped working.
I also upgraded to Linux 4.19 rc1, but it crashes for a similar reason.
It appears that there is a NULL pointer reference when probing for I2C bus.
The bug was observed on HP 2133 mini-note and VIA Embedded EPIA-M830 mainboard.
Comment 1 Kevin Brace 2018-09-06 18:38:43 UTC 
Created attachment 278351 [details]
kern.log for VIA Embedded EPIA-M830 mainboard
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