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[2620:137:e000::3:3]) by mx.google.com with ESMTPS id y8-20020a17090a86c800b0028a4fd5e0aesi467736pjv.63.2023.12.08.13.46.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Dec 2023 13:46:48 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) client-ip=2620:137:e000::3:3; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=wAcyLJc1; dkim=neutral (no key) header.i=@linutronix.de header.b=cH75FL4e; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by lipwig.vger.email (Postfix) with ESMTP id 40B1981EEBFD; Fri, 8 Dec 2023 13:46:46 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1574782AbjLHVmK (ORCPT + 99 others); Fri, 8 Dec 2023 16:42:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229572AbjLHVmJ (ORCPT ); Fri, 8 Dec 2023 16:42:09 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D8FDA9F for ; Fri, 8 Dec 2023 13:42:15 -0800 (PST) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1702071734; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=kJjCpHW3cLeJKhU5Mj5m0X6ylCYnbleawYD+kVkWO8o=; b=wAcyLJc183S+uTB9JL1fd3nzhkLsTc+CydcFai81r3InPa1hHObDdMeKpgoelf1Rh0eTeO 93YM4cikDd5RJTnlQp8/5ViOuqpxyJ4zRcRzk6R2P6ooNPeDr69o3qcZG5u39FAuH6aCI+ Oi/adljTjwGgRLI4C9Bzd6VauE5psNZvuBxKEhgLr3nq5swEFqfzJpA9rHTWCgBjVH28XA sEBGp5+tK9JY99MIKgK+I8k1/U2abDHmU/UE+f+ZXepfMngvM3PIa0c1Q9clWATaYXlmsF RUL58ye930SuhF7uRpbVDYrIk38T+pMLon9zlK+cY6wIPnBKEsHpc/OB/gy47Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1702071734; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=kJjCpHW3cLeJKhU5Mj5m0X6ylCYnbleawYD+kVkWO8o=; b=cH75FL4e+YqF4GV/l0OH2aqjxnTWk5WHjzSScfP+XCanERV2bqJt29LmoVUcPdsP4ZaRxZ kZ/GJKbJHMVRnlDA== To: xingwei lee , syzbot+f2c4e7bfcca6c6d6324c@syzkaller.appspotmail.com Cc: jstultz@google.com, linux-kernel@vger.kernel.org, sboyd@kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [kernel?] possible deadlock in alarm_handle_timer In-Reply-To: References: Date: Fri, 08 Dec 2023 22:42:13 +0100 Message-ID: <87o7f0qslm.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Fri, 08 Dec 2023 13:46:46 -0800 (PST) On Tue, Dec 05 2023 at 10:07, xingwei lee wrote: > Hello > I reproduced this bug with repro.c Which bug? What happens if you run this and what's the potential deadlock? Lot's of information missing here including the kernel version ... Thanks, tglx