On Tue, Jan 09, 2018 at 08:44:23AM -0500, Vince Weaver wrote: > On Tue, 9 Jan 2018, Peter Zijlstra wrote: > > > So remind me again, how are you running that fuzzer? I'm running > > ./fast_repro99.sh as root. > > I'm running ./fast_repro98.sh on a regular haswell machine with paranoid > set to "0". > > I'll try your patch and see if it makes a difference.
I suspect not, it shouldn't be PTI specific. > I can also try on a few other machines. I started setting up a fuzzing > cluster for this kind of thing but the multiport serial card I got for > logging the serial consoles crashes fairly quickly under load and I > haven't had time to track that down. So I don't think HSW has PT, which is something I cannot test on my IVB. OTOH HSW has PEBS real_ip, but that uses _less_ magic. In any case, I found yet another lockdep splat, trying to figure out wth to do about that. Will then continue running with fast_repro98.
