Messages in this thread | | | Date | Tue, 30 Jun 2015 12:06:07 -0700 | From | Andy Lutomirski <> | Subject | Re: lockdep issue booting v4.1 upstream kernel with >64 x86_64 CPUs |
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On 06/27/2015 03:46 AM, Borislav Petkov wrote: > On Sat, Jun 27, 2015 at 03:32:40AM -0700, Michel Lespinasse wrote: >> Yes, tried this successfully both with <64 and >64 CPUs, this does get >> rid of the lockdep warning for me. > > Thanks, I'll add your Tested-by to the patch. >
Just for kicks, can one of you big NUMA owners try running the sigreturn tests (tools/testing/selftests/x86/sigreturn_{32,64}) on one of these monsters with that patch applied, preferably on every cpu?
Something like:
for i in `seq 1 64`; do (taskset -c $i ./sigreturn_32 && taskset -c $i ./sigreturn_64) >/dev/null || echo FAIL; done
I don't see why it would fail, but if the percpu conversion was botched, then these tests are likely to blow up.
--Andy
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