On Thu, 7 Apr 2005, Nigel Cunningham wrote: > Whenever this topic comes up, the discussion is always abstract. If > someone could think of a lock that might actually deadlock suspending, > we look seriously at the issue. In the meantime, all I can say, from > roughly three years of developing and testing, is that it never seems to > happen. And yes, I know that doesn't necessarily mean it can't. I agree with Nigel. Certainly in the USB part of the kernel the uninterruptible sleeps all have rather short, bounded durations. Furthermore they correspond to specific events -- a new device is plugged in -- which are unlikely to occur just as the system is going to sleep. Alan Stern
