> I found a similar system (not same stepping, but same model) and tested > perf top works fine here. Also on a couple of other systems. > > Since I cannot reproduce I would need your help debugging it.
Ingo, I haven't heard back from you on this. You reported an unreproducable bug. I gave you several steps to diagnose the problem, so that we can make progress on this. You've had several days time now to to this, but I have not heard from you. If you don't report back from 5/3/2013 I'll assume it was some other mistake on your side. As a reminder: I assume it worked before my patches. If you don't know please double check. Also I assume there's no general problem between the user land perf you used and the kernel. The only patch I could think of which may affect other systems is the moving of the APIC ack. So does it work if you revert perf, x86: Move NMI clearing to end of PMI handler after ... If that is it we could white list it for Haswell. If that's not it I may need a bisect, assuming the problem is stable. Thanks for your cooperation. -Andi -- 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/
