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Wed, 10 Nov 2021 01:08:52 -0800 (PST) Received: from elver.google.com ([2a00:79e0:15:13:5b79:8e57:35c2:52]) by smtp.gmail.com with ESMTPSA id x21sm4942772wmc.14.2021.11.10.01.08.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Nov 2021 01:08:51 -0800 (PST) Date: Wed, 10 Nov 2021 10:08:45 +0100 From: Marco Elver To: Russell King - ARM Linux admin Cc: Mark Rutland , Dmitry Vyukov , syzbot , Arnd Bergmann , Linux ARM , Alexandre Chartre , LKML , Masami Hiramatsu , Peter Zijlstra , syzkaller-bugs , Thomas Gleixner Subject: Re: [syzbot] upstream boot error: WARNING in __context_tracking_enter Message-ID: References: <0000000000004f14c105bde08f75@google.com> <20210319101043.GU1463@shell.armlinux.org.uk> <20210322172241.GB80352@C02TD0UTHF1T.local> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.0.5 (2021-01-21) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211110_010853_806867_B79A2D3A X-CRM114-Status: GOOD ( 13.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Apr 13, 2021 at 07:14AM +0200, Dmitry Vyukov wrote: [...] > Hi Russell, > > Does Mark's comment make sense to you? > lockdep_assert_preemption_disabled() also checks "&& > this_cpu_read(hardirqs_enabled)", so is it that we also need hardirq's > disabled around user_enter/exit? > This issue currently prevents ARM boot on syzbot. We've disabled lockdep on syzbot's arm32 instance now as that instance had been dead since March: https://github.com/google/syzkaller/commit/be386ae8800e02b4a9a3239c9565e9d40e253c84 It's running again. There may be an influx of new bugs. Thanks, -- Marco _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel