Hi, On Sat, Jan 24, 2015 at 12:12:04PM -0300, Arnaldo Carvalho de Melo wrote: > Em Fri, Jan 23, 2015 at 04:37:45PM -0600, Felipe Balbi escreveu: > > On Fri, Jan 23, 2015 at 05:59:59PM -0300, Arnaldo Carvalho de Melo wrote: > > > Em Fri, Jan 23, 2015 at 01:51:28PM -0600, Felipe Balbi escreveu: > > > > I'm using v3.19-rc5 on an ARM Cortex A9 board. Unfortunately, perf is > > > > not able to capture any stack traces even though I CONFIG_STACKTRACE, > > > > CONFIG_FRAME_POINTER and CONFIG_ARM_UNWIND all enabled. > > > > > > > > I wonder if anybody else is facing similar issues. > > > > > > Did it work with a previous kernel? > > > > haven't checked with this board. First time I tried to use perf for > > anything. > > And it is the first time I've heard about such a problem, not dealing > with ARM myself, so I guess this is a case for looking if there was some > previous kernel where this worked, then trying to bisect where the > problem was introduced :-\ yeah, I'll try a few older kernels, also see if I can reproduce on other boards. cheers -- balbi
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