On Mon, 14 Sep 2020, Jarkko Sakkinen wrote: > What about stack trace? It was attached to my original E-mail. But there was nothing special about it, the _start is just the standard .start call from "struct seq_operations" so that's where the read ends up. > Also, are you able to bisect this? I'd done a checkout of the commit that introduced this routine, it appears to be this way from the start. -Kenny -- Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Orange County CA