On Tue, 10 Dec 2019 08:19:42 -0800 Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > On Sun, Dec 8, 2019 at 4:03 PM Alexei Starovoitov <ast@xxxxxxxxxx> wrote: > > > > Depending on type of BPF programs served by BPF trampoline it can call original > > function. In such case the trampoline will skip one stack frame while > > returning. That will confuse function_graph tracer and will cause crashes with > > bad RIP. Teach graph tracer to skip functions that have BPF trampoline attached. > > > > Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx> > > Steven, please take a look. I'll try to get to it today or tomorrow. I have some other work to get done that my job requires I do ;-) -- Steve
