Will Deacon <will.dea...@arm.com> writes: > Hi Alexander, > > On Fri, Aug 12, 2016 at 08:54:49PM +0300, Alexander Shishkin wrote: >> Yes, I tracked to a race between unmapping and set_output, trying to >> come up with a good fix now. > > Did you get anywhere with this? I think I just hit the same issue with > the intel-pt driver on my broadwell laptop with -rc3+PREEMPT (dump > below) and I'm more than happy to test a fix.
Yes, I posted a patchset [1] this morning that should fix this; if this is PT, 3/3 should suffice. What's "pt-poker", btw? :) [1] http://marc.info/?l=linux-kernel&m=147194269031047 Regards, -- Alex