On Thu, Jun 20, 2013 at 04:17:06AM +0100, Jed Davis wrote: > On Tue, Jun 18, 2013 at 02:13:19PM +0100, Will Deacon wrote: > > On Fri, Jun 14, 2013 at 12:21:11AM +0100, Jed Davis wrote: > > > With this change, we no longer lose the innermost entry in the user-mode > > > part of the call chain. See also the x86 port, which includes the ip. > > > > > > It's possible to partially work around this problem by post-processing > > > the data to use the PERF_SAMPLE_IP value, but this works only if the CPU > > > wasn't in the kernel when the sample was taken. > > > > Thanks. I guess we need something similar for arm64 too. Could you cook a > > similar patch please? > > Done (and tested, on the ARM V8 Foundation Model).
Wow, I didn't expect you to test it. Thanks! > It looked as if the powerpc and sparc ports might have similar issues, > but I haven't checked on them yet. I can extract some hardware from the pile in the corner of my flat if you want a hand with testing. Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
