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|---|---|
| From | Michael Ellerman <mpe@ellerman.id.au> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] powerpc: tracing: don't trace hcalls on offline CPUs |
| Date | Mon, 23 Nov 2015 00:40:02 +0100 |
| Message-ID | <qxMoG-2bB-23@gated-at.bofh.it> (permalink) |
| References | <qp0TU-4iv-15@gated-at.bofh.it> <qqGHq-1jJ-41@gated-at.bofh.it> <qqJlV-2OU-25@gated-at.bofh.it> <qwSZd-79N-35@gated-at.bofh.it> |
| X-Original-To | Denis Kirjanov <kda@linux-powerpc.org> |
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| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 32 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | linuxppc-dev@ozlabs.org, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Anton Blanchard <anton@samba.org>, Steven Rostedt <rostedt@goodmis.org>, linux-kernel@vger.kernel.org |
| X-Original-Date | Mon, 23 Nov 2015 10:35:59 +1100 |
| X-Original-Message-ID | <1448235359.18775.1.camel@ellerman.id.au> |
| X-Original-References | <1446145810-5383-1-git-send-email-kda@linux-powerpc.org> <1446545202.2801.2.camel@ellerman.id.au> <CAOJe8K0=J033NMh++iznar21_p4G4epAgE0wONoxZxEyFPS9VQ@mail.gmail.com> <CAOJe8K1q=bO5iKfnG=9ZLNvk0sREcfqNJuHNhyspe6MG4hSfHA@mail.gmail.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
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On Fri, 2015-11-20 at 15:22 +0300, Denis Kirjanov wrote: > On 11/3/15, Denis Kirjanov <kda@linux-powerpc.org> wrote: > > On 11/3/15, Michael Ellerman <mpe@ellerman.id.au> wrote: > > > On Thu, 2015-10-29 at 22:10 +0300, Denis Kirjanov wrote: > > > > ./drmgr -c cpu -a -r gives the following warning: > > > > > > > > [ 2327.035563] RCU used illegally from offline CPU! > > > > > > > > Make the hypervisor tracepoints conditional by introducing > > > > TRACE_EVENT_FN_COND similar to TRACE_EVENT_FN > > > > > > We've fixed other cases like this with RCU_NONIDLE(), but I assume that > > > doesn't work here because we're actually offline? > > > > Yes, in this case we're moving the complete core offline through dlpar... > > > > Hi Michael, > Could you pick this patch? It's mostly a tracing patch, so I'd need an ACK from Steve at least. It would probably be best if you split it into a "tracing: .. " patch which adds the new macros and then a powerpc patch which uses them. cheers -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH] powerpc: tracing: don't trace hcalls on offline CPUs Denis Kirjanov <kda@linux-powerpc.org> - 2015-11-20 13:30 +0100
Re: [PATCH] powerpc: tracing: don't trace hcalls on offline CPUs Michael Ellerman <mpe@ellerman.id.au> - 2015-11-23 00:40 +0100
Re: [PATCH] powerpc: tracing: don't trace hcalls on offline CPUs Steven Rostedt <rostedt@goodmis.org> - 2015-11-23 02:00 +0100
Re: [PATCH] powerpc: tracing: don't trace hcalls on offline CPUs Denis Kirjanov <kda@linux-powerpc.org> - 2015-11-23 10:40 +0100
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