Am Mittwoch, 30 März 2016, 20:09:36 schrieb Michael Ellerman: > On Wed, 2016-03-30 at 13:34 +0530, Naveen N. Rao wrote: > > On 2016/03/29 08:35PM, Thiago Jung Bauermann wrote: > > > Am Dienstag, 29 März 2016, 14:31:34 schrieb Michael Ellerman: > > > > On Mon, 2016-03-28 at 17:06 -0300, Thiago Jung Bauermann wrote: > > > > > With this patch, all vmlinux symbols match /proc/kallsyms and the > > > > > testcase passes. > > > > > > > > Have you tested this on an LE system? > > > > > > No, I was focusing on ppc64 BE. > > > > Which kernel did you use? I don't see this with the latest 4.6.0-rc1. > > Yeah I can't reproduce the perf test failure either.
I can still reproduce on 4.6.0-rc1. > Not sure what's going on? Try disabling CONFIG_FUNCTION_TRACER. The test failure happens when .kretprobe_trampoline_holder and kretprobe_trampoline have the same address. If that option is enabled, the symbols have different addresses: $ eu-readelf -s /boot/vmlinux-4.6.0-rc1-dirty | grep kretprobe_tramp 2479: c000000000ef1d68 24 NOTYPE LOCAL DEFAULT 37 kretprobe_trampoline_holder 2480: c000000000043ab0 40 FUNC LOCAL DEFAULT 1 .kretprobe_trampoline_holder 86903: c000000000043ac4 0 NOTYPE GLOBAL DEFAULT 1 kretprobe_trampoline $ grep kretprobe_tramp /proc/kallsyms c000000000043ab0 t .kretprobe_trampoline_holder c000000000043ac4 T kretprobe_trampoline c000000000ef1d68 d kretprobe_trampoline_holder -- []'s Thiago Jung Bauermann IBM Linux Technology Center _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev