On (01/10/18 17:29), Petr Mladek wrote: [..] > The next versions used lazy offload from console_unlock() when > the thread spent there too much time. IMHO, this is one > very promising solution. It guarantees that softlockup > would never happen. But it tries hard to get the messages > out immediately. a small addition. my motivation was not exactly the "lazy offload", but to keep the existing printk behavior as long as possible. and that "as long as possible" is determined by watchdog threshold, which is the only limit we must care about. as long as printing task spends more than 1/2 of watchdog threshold - we offload. otherwise we don't mess up with the existing logic/guarantees/etc. there is also a bunch of other things in the patch now. but nothing fantastically complex. -ss -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
