@Pali, maacruz:

AIUI audio filter could be very good thing to have, yet we missing:

-proper kernel patch
-useland support

so I don't see the point to enable that patch in KP50. Nor to continue the discussion in the context of KP50. Even if someone is going to write the missing pieces it will take a good amount of time, so lets leave the exercise for some future KP version.

@maacruz, I can confirm that without those 6 patches there are no more xorg and other processes crashes, from today I am going to enable patches one by one, lets see which one is the bugger

@Pali - I would recommend (not to say insist ) to disable CONFIG_ARM_ERRATA_430973 in rx51_defconfig until (and if) there is a need for it. Having this errata workaround enabled in KP brings only massive slowdown to the system, without any benefit, as there are no thumb-compiled binaries yet. And would you please make a new .debs with latest patches excluding those 6 from maacruz until I find which one brings the problems.