On Wed, Mar 06, 2019 at 11:07:55AM -0500, Mikulas Patocka wrote: > This bug only happens if we select large logbuffer (millions of > characters). With smaller log buffer, there are messages "** X printk > messages dropped", but there's no lockup. > > The kernel apparently puts 2 million characters into a console log buffer, > then takes some lock and than tries to write all of them to a slow serial > line. What are the messages; from what kernel subsystem? Why are you seeing so many log messages? - Ted
