http://bugzilla.opensuse.org/show_bug.cgi?id=1177973
http://bugzilla.opensuse.org/show_bug.cgi?id=1177973#c18
--- Comment #18 from Takashi Iwai ---
The bug is likely intermittent. It's caused by the concurrent access to the
GPIO to get / write some EDID thingy, so sometimes it hits, sometimes not.
I was afraid that it caused some deep loop, but apparently it's a one-off
thing, and we can fix it properly just by dropping the ASSERT*() call there.
I'm going to submit the patch to upstream after a bit more discussion with
them.
About the invocation of xcmddc: no worries, I checked xcm package, and found
that it contains a udev rule to invoke the command.
I guess you might be able to trigger the bug by running like
xcmddc --i2c /dev/$I2C --identify
where $I2C is i2c-0 or such existing device file. Run the above from multiple
places at the same time, and you might see the kernel warning again.
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