On Sun, Jan 08, 2017 at 03:19:49PM +0100, Jiri Olsa wrote: > On Tue, Jan 03, 2017 at 01:00:29AM -0800, Andi Kleen wrote: > > SNIP > > > + len = grab_bb(buffer, start, end, > > + machine, thread, &x.is64bit, > > + &x.cpumode); > > + /* Patch up missing kernel transfers due to ring filters */ > > could you please provide more details on those ring filters? never heard of..
This is the LBR filter exposed with the -j option (-j user or -j kernel) -Andi
