Messages in this thread | | | Date | Mon, 23 Nov 2015 12:31:05 +0300 | Subject | Re: [PATCH] powerpc: tracing: don't trace hcalls on offline CPUs | From | Denis Kirjanov <> |
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On 11/23/15, Michael Ellerman <mpe@ellerman.id.au> wrote: > 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.
Ok, sounds reasonable.
Thanks! > > cheers > >
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