On Thu, Apr 04, 2019 at 09:25:47AM -0400, Vince Weaver wrote: > > It looks like there are at least two bugs here, one that's a full > hardlockup with nothing on serial console. The other is the NULL > dereference. >
Seems so. I've spent plenty of time yesterday trying to figure out how we even reach the case when event = nil but without much luck. > Just ran with your patch applied and it hit the hard lockup case. > > I'll have to see if things are reproducible and I can try to see if I can > get a reproducible value for what even caused the issue. perf_fuzzer has > some infrastructure for determining that but it's hit or miss if you can > get anything useful from it. At least the sequence of events migh give us some ideas, maybe not indeed. Thanks a huge, Vince! > I'll keep running things, but I'm a bit busy at work here the next few > days so there might be some delay in the results. Sure, take your time. I think this problem with p4 is not urgent. I'll ping you if I get some more ideas.
