On Thu, Mar 10, 2016 at 5:53 AM, Peter Zijlstra <pet...@infradead.org> wrote: > On Mon, Mar 07, 2016 at 01:18:40PM +0100, Peter Zijlstra wrote: >> On Mon, Mar 07, 2016 at 11:24:13AM +0100, Peter Zijlstra wrote: >> >> > I suspect Andi is having something along: >> > >> > lkml.kernel.org/r/1445458568-16956-1-git-send-email-a...@firstfloor.org >> > >> > applied to his tree. >> >> OK, I munged a bunch of patches together, please have a hard look at the >> end result found in: >> >> git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/core > > So while running tip/master I just triggered the "irq loop stuck" warn > on my IVB, with status==1, and PMC0 didn't look weird at all. > > I've not seen that for a fair while. But it does show it still happens > on not quite antique hardware.
Yes, as I said, tip.git is missing something, with Andi's missing 3 patches I do not get that. But with them, I was getting the problem I described earlier, so I just posted a patch to handle that particular case where bit 62 is not set, yet PEBS counters show overflow. Test it. Thanks.
