From: "Paul E. McKenney" <paulmck@kernel.org>
To: linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
kernel-team@fb.com, mingo@kernel.org
Cc: elver@google.com, andreyknvl@google.com, glider@google.com,
dvyukov@google.com, cai@lca.pw, boqun.feng@gmail.com
Subject: Re: [PATCH kcsan 0/10] KCSAN updates for v5.9
Date: Wed, 24 Jun 2020 13:08:10 -0700 [thread overview]
Message-ID: <20200624200810.GA20999@paulmck-ThinkPad-P72> (raw)
In-Reply-To: <20200624190236.GA6603@paulmck-ThinkPad-P72>
On Wed, Jun 24, 2020 at 12:02:36PM -0700, Paul E. McKenney wrote:
> On Mon, Jun 22, 2020 at 05:43:10PM -0700, Paul E. McKenney wrote:
> > Hello!
> >
> > This series provides KCSAN updates:
>
> And three more, so that GCC can join Clang in the KCSAN fun.
>
> > 1. Annotate a data race in vm_area_dup(), courtesy of Qian Cai.
> >
> > 2. x86/mm/pat: Mark an intentional data race, courtesy of Qian Cai.
> >
> > 3. Add ASSERT_EXCLUSIVE_ACCESS() to __list_splice_init_rcu().
> >
> > 4. Add test suite, courtesy of Marco Elver.
> >
> > 5. locking/osq_lock: Annotate a data race in osq_lock.
> >
> > 6. Prefer '__no_kcsan inline' in test, courtesy of Marco Elver.
> >
> > 7. Silence -Wmissing-prototypes warning with W=1, courtesy of Qian Cai.
> >
> > 8. Rename test.c to selftest.c, courtesy of Marco Elver.
> >
> > 9. Remove existing special atomic rules, courtesy of Marco Elver.
> >
> > 10. Add jiffies test to test suite, courtesy of Marco Elver.
>
> 11. Re-add GCC as a supported compiler.
>
> 12. Simplify compiler flags.
>
> 13. Disable branch tracing in core runtime.
All three of which, I should hasten to add, are courtesy of Marco Elver.
> Please note that using GCC for KCSAN requires building your own compiler
> from recent mainline.
Thanx, Paul
> ------------------------------------------------------------------------
> The added three (#11-#13) only:
> ------------------------------------------------------------------------
>
> Documentation/dev-tools/kcsan.rst | 3 ++-
> kernel/kcsan/Makefile | 6 +++---
> lib/Kconfig.kcsan | 3 ++-
> scripts/Makefile.kcsan | 2 +-
> 4 files changed, 8 insertions(+), 6 deletions(-)
prev parent reply other threads:[~2020-06-24 20:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 0:43 [PATCH kcsan 0/10] KCSAN updates for v5.9 Paul E. McKenney
2020-06-23 6:31 ` Marco Elver
2020-06-23 13:43 ` Paul E. McKenney
2020-06-23 15:06 ` Marco Elver
2020-06-23 16:31 ` Paul E. McKenney
2020-06-24 19:02 ` Paul E. McKenney
2020-06-24 19:03 ` [PATCH kcsan 1/3] kcsan: Re-add GCC as a supported compiler paulmck
2020-06-24 19:03 ` [PATCH kcsan 2/3] kcsan: Simplify compiler flags paulmck
2020-06-24 19:03 ` [PATCH kcsan 3/3] kcsan: Disable branch tracing in core runtime paulmck
2020-06-24 20:08 ` Paul E. McKenney [this message]
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