On Sat, Feb 27, 2016 at 01:37:01PM +0100, Jiri Olsa wrote: > we are getting hard lockups on Core2 cpus (model 23)
> I can't find what's special about Core2 CPU PEBS setup, > it seems that oher CPUs are ok (tried on ivb/snb/hsw). > > reverting the 156174999dd1 fixed the issue for me > > ideas? thanks, The obvious difference between Core2 and later chips is that Core2 only has PEBS on a single counter (cnt0). I'll try and have a closer look on Monday, I should still have a Core2 class machine around the house somewhere.
