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I went to 6.2 and that same process also > crashed. I then totally focused on v6.1..v6.2 to figure out the problem. > I simply assumed v6.3 had the same problem because the symptom from > 30.000ft was the same (that process died). I failed to go back to v6.3 > to confirm that it was indeed the same problem as I had found in the > v6.1..v6.2 range. > > My bad, it seems I have another day of bisections lined up. For closure, I ended up with this: https://lore.kernel.org/lkml/221d19e2-6b92-7f38-7d8a-a730f54c33ea@axentia.se/ I.e. another v6.1..v6.2 regression that caused sound failures. The two problems looked very similar to the suffering application. Anyway, sorry again for the noise. Cheers, Peter