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Date: Wed, 4 Oct 2017 09:04:23 +0800 From: Fengguang Wu <fengguang.wu@...el.com> To: Peter Zijlstra <peterz@...radead.org> Cc: LKP <lkp@...org>, linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org> Subject: Re: d82fed7529 ("locking/lockdep/selftests: Fix mixed read-write .."): BUG: -1 unexpected failures (out of 262) - debugging disabled! | On Wed, Aug 30, 2017 at 09:41:59AM +0200, Peter Zijlstra wrote: >On Wed, Aug 30, 2017 at 08:29:47AM +0200, Peter Zijlstra wrote: >> On Wed, Aug 30, 2017 at 11:37:21AM +0800, kernel test robot wrote: >> >> > [ 0.004000] ----------------------------------------------------------------- >> > [ 0.004000] BUG: -1 unexpected failures (out of 262) - debugging disabled! | >> > [ 0.004000] ----------------------------------------------------------------- >> >> lol.. however did that happen.. /me goes look. > >Ah, I think this should cure.. It works! Tested-by: Fengguang Wu <fengguang.wu@...el.com> >--- >diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c >index cd0b5c964bd0..2b827b8a1d8c 100644 >--- a/lib/locking-selftest.c >+++ b/lib/locking-selftest.c >@@ -2031,11 +2031,13 @@ void locking_selftest(void) > print_testname("mixed read-lock/lock-write ABBA"); > pr_cont(" |"); > dotest(rlock_ABBA1, FAILURE, LOCKTYPE_RWLOCK); >+#ifdef CONFIG_PROVE_LOCKING > /* > * Lockdep does indeed fail here, but there's nothing we can do about > * that now. Don't kill lockdep for it. > */ > unexpected_testcase_failures--; >+#endif > > pr_cont(" |"); > dotest(rwsem_ABBA1, FAILURE, LOCKTYPE_RWSEM);
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