On (12/12/18 16:40), Daniel Wang wrote: > In case this was buried in previous messages, the commit I'd like to > get backported to 4.14 is dbdda842fe96f: printk: Add console owner and > waiter logic to load balance console writes. But another followup > patch that fixes a bug in that patch is also required. That is > c14376de3a1b: printk: Wake klogd when passing console_lock owner. Additionally, for dbdda842fe96f to work as expected we really need fd5f7cde1b85d4c. Otherwise printk() can schedule under console_sem and console_owner, which will deactivate the "load balance" logic. -ss
