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Darwish" , mingo@kernel.org, will@kernel.org, tglx@linutronix.de, x86@kernel.org, linux-kernel@vger.kernel.org, rostedt@goodmis.org, bigeasy@linutronix.de, davem@davemloft.net, sparclinux@vger.kernel.org, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, heiko.carstens@de.ibm.com, linux-s390@vger.kernel.org, linux@armlinux.org.uk, paulmck@kernel.org Subject: Re: [PATCH v4 7/8] lockdep: Change hardirq{s_enabled,_context} to per-cpu variables Message-ID: <20200624151814.GI4781@hirez.programming.kicks-ass.net> References: <20200623083645.277342609@infradead.org> <20200623083721.512673481@infradead.org> <20200623150031.GA2986783@debian-buster-darwi.lab.linutronix.de> <20200623152450.GM4817@hirez.programming.kicks-ass.net> <20200623161320.GA2996373@debian-buster-darwi.lab.linutronix.de> <20200623163730.GA4800@hirez.programming.kicks-ass.net> <20200623175957.GA106514@elver.google.com> <20200623181232.GB4800@hirez.programming.kicks-ass.net> <20200623202404.GE2483@worktop.programming.kicks-ass.net> <20200624113246.GA170324@elver.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200624113246.GA170324@elver.google.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 24, 2020 at 01:32:46PM +0200, Marco Elver wrote: > From: Marco Elver > Date: Wed, 24 Jun 2020 11:23:22 +0200 > Subject: [PATCH] kcsan: Make KCSAN compatible with new IRQ state tracking > > The new IRQ state tracking code does not honor lockdep_off(), and as > such we should again permit tracing by using non-raw functions in > core.c. Update the lockdep_off() comment in report.c, to reflect the > fact there is still a potential risk of deadlock due to using printk() > from scheduler code. > > Suggested-by: Peter Zijlstra (Intel) > Signed-off-by: Marco Elver Thanks! I've put this in front of the series at hand. I'll wait a little while longer for arch people to give feedback on their header patches before I stuff the lot into tip/locking/core.