Comment # 6 on bug 1219056 from Davor Virag

(In reply to Takashi Iwai from comment #4)
> Is it a regression?  If yes, we can try to narrow down the regression range
> and identify the cause.
> 
> Otherwise, it's an upstream problem, and better to report there.
> We can help backporting the fix in distro side, of course, so feel fee to
> put me to Cc.

I have created a bug report here as the kernel bugzilla was listed in the
MAINTAINERS file, but unfortunately I cannot seem to add you to CC:

https://bugzilla.kernel.org/show_bug.cgi?id=218461