Firmware debug messages stopped sometime after 3.18

Ben Greear greearb at
Thu Jan 1 17:17:00 PST 2015

While trying to reproduce some bugs on ath10k in 3.19.0-rc2, I could not
get any debuglog messages from the firmware.  For instance, in stock kernel
it should print out something like this:

 wmi event debug mesg len 28

I got other wmi debug messages, so the debug level appeared correct.

The message shows up as expected in stock 3.18 kernel.

Was this done on purpose?

I've started a bisect...should track it down directly.


Ben Greear <greearb at>
Candela Technologies Inc

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