From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E229C77B78 for ; Wed, 3 May 2023 10:38:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229839AbjECKih (ORCPT ); Wed, 3 May 2023 06:38:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229526AbjECKif (ORCPT ); Wed, 3 May 2023 06:38:35 -0400 Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5271035A6 for ; Wed, 3 May 2023 03:38:34 -0700 (PDT) Received: by mail-lf1-x136.google.com with SMTP id 2adb3069b0e04-4ecb7fe8fb8so7646e87.0 for ; Wed, 03 May 2023 03:38:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1683110312; x=1685702312; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=m6tIDIaRiKNsIqKtjMQi+s0SrWUkBcsj6Av85gJp2lM=; b=YhIagxbGgKIdNze0WYzl1bsUlbdGKL2AhxpmolEa15irRT/JaP5WGnxK+WqVYUma/t sPBgo3evjVuiJVjTSwHSnGNCqgkoNXTyHmdX0rJ4IETC0aZQZ1qVU1XtSoXkRX5M4hp0 4WJQ7eH3TRebn8/Tv6wFsZE6PjwdQwJ6VrW1SYGtVb6J01fsfx0EIzNzVRJiwvWORdi9 wZ8VPlqrCtScpEfJZ5sSGZNxy1s8ZtI4vMvarxbBU9ng3S90LpCR8KJtE5sPA/rVcvu4 RcsarXStCebvNhCCes0gSHejeVeEXtkaKurM6fBMUK2Q21/lNBsv//9A2LbzIaNAYYzA a2NQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683110312; x=1685702312; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=m6tIDIaRiKNsIqKtjMQi+s0SrWUkBcsj6Av85gJp2lM=; b=U3fTVt8vCJ6cLraZsj+qQp5WP3C7dROjqUoVkoaAvdenKNA48jzJvw1bgteY6NiVUg 4vlElqtUGHfiRncvjtFtYLkBCcFQMv2y+SwVcc0Jj10ZTXJ0Pw16kBvEU8GeNKjYA4/i ipNssgQUVWS632t5pxgUq0iKE/g3vdmFTouMYX018v5PTdE5VUHfQ2IDlWNUrFP1UniG bKKvshTxfXlJINjezAEEmMdckKpM+yPxMLXffSBSOjjYE8ikB1XxCrC/9QYReS5k713a 9PSxssKt+27GHPsVCr9RwqQr45vCxXFiqcjryB4g+Th5OcZHTIfOIEEnUB0X2BBkKJGu tUSA== X-Gm-Message-State: AC+VfDy+AeQ17hgFZCxNeS6IoSYLbkRRLa0BClb3wbOdzXIQ4chBfrTG lr1o4FcP2gpwt7HOnm/G9x6KyfZTX1aoXsVSg6yY9Q== X-Google-Smtp-Source: ACHHUZ6plspNJ1Clj0iGJK4HTVf8p2XdgXnlkdlRvwLEkw05imY2TkdjSkTNjQ+vwk0lJz3T6uGw8psbtvhTbPQ0KDU= X-Received: by 2002:a05:6512:3d27:b0:4f0:10e6:b51 with SMTP id d39-20020a0565123d2700b004f010e60b51mr192349lfv.4.1683110312393; Wed, 03 May 2023 03:38:32 -0700 (PDT) MIME-Version: 1.0 References: <000000000000281ae805faa4844e@google.com> In-Reply-To: From: Dmitry Vyukov Date: Wed, 3 May 2023 12:38:19 +0200 Message-ID: Subject: Re: [syzbot] upstream boot error: BUG: unable to handle kernel NULL pointer dereference in psi_task_switch To: "Russell King (Oracle)" Cc: syzbot , bristot@redhat.com, bsegall@google.com, dietmar.eggemann@arm.com, hannes@cmpxchg.org, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, surenb@google.com, syzkaller-bugs@googlegroups.com, vincent.guittot@linaro.org, vschneid@redhat.com, Linux ARM Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 3 May 2023 at 12:34, Russell King (Oracle) wrote: > > On Tue, May 02, 2023 at 08:37:15AM +0200, Dmitry Vyukov wrote: > > On Mon, 1 May 2023 at 18:43, syzbot > > wrote: > > > > > > Hello, > > > > > > syzbot found the following issue on: > > > > > > HEAD commit: 89d77f71f493 Merge tag 'riscv-for-linus-6.4-mw1' of git://.. > > > git tree: upstream > > > console output: https://syzkaller.appspot.com/x/log.txt?x=1113550c280000 > > > kernel config: https://syzkaller.appspot.com/x/.config?x=4cc65ccad523b604 > > > dashboard link: https://syzkaller.appspot.com/bug?extid=0827f43974813b74e6db > > > compiler: arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > > userspace arch: arm > > > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > > Reported-by: syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com > > > > +arm mailing list > > > > Kernel started falling apart on arm during boot in various strange ways. > > Are these all the same hardware platform? If so, please check the > hardware with a known working kernel. These look like spurious failts > caused possibly the hardware platform failing. It happens in the same qemu that used to work before. So "hardware" is presumably working. 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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683110312; x=1685702312; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=m6tIDIaRiKNsIqKtjMQi+s0SrWUkBcsj6Av85gJp2lM=; b=S3YuOPswTB3HaQgPXM/VTm4Znm3wFV1WWUuVl9qfMxuKO5SphGOlo+CLL2DysZIPQZ OuFrbl9ObaeTlIW3UfsDQPwYHgzoN40FHXe1dhYYczJyogvAYo1m5DU3K9nw/4UzyjhK 3/EmOq1dDYjlFDvUnbFE7Eka2YoyNsziB4sOlsup2KMbzENiu5DkftvMbDIrdyxQKmJf Pu+uIGND4S/EY773EaPsomqxmp1tQUZZJeMnKUvpWkGAjL/ykDSKX4qSpnoH5oqg0a1Q MH1zrL3BsjtSUQsSm721Z4080g8h5jfGyuHXD989OunVwmTkCXkXSqu4SxgyTpZ4kWGm oneQ== X-Gm-Message-State: AC+VfDymGnqrUI7ppFGm4cSHWGljAFvaD777dHmAVbzw6A6k4NpZhzhc cwrOyvEWyZ+OBQSiX5tyDT1jG984/lYrUstlLqO5Yg== X-Google-Smtp-Source: ACHHUZ6plspNJ1Clj0iGJK4HTVf8p2XdgXnlkdlRvwLEkw05imY2TkdjSkTNjQ+vwk0lJz3T6uGw8psbtvhTbPQ0KDU= X-Received: by 2002:a05:6512:3d27:b0:4f0:10e6:b51 with SMTP id d39-20020a0565123d2700b004f010e60b51mr192349lfv.4.1683110312393; Wed, 03 May 2023 03:38:32 -0700 (PDT) MIME-Version: 1.0 References: <000000000000281ae805faa4844e@google.com> In-Reply-To: From: Dmitry Vyukov Date: Wed, 3 May 2023 12:38:19 +0200 Message-ID: Subject: Re: [syzbot] upstream boot error: BUG: unable to handle kernel NULL pointer dereference in psi_task_switch To: "Russell King (Oracle)" Cc: syzbot , bristot@redhat.com, bsegall@google.com, dietmar.eggemann@arm.com, hannes@cmpxchg.org, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, surenb@google.com, syzkaller-bugs@googlegroups.com, vincent.guittot@linaro.org, vschneid@redhat.com, Linux ARM X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230503_033835_306225_ED43D94A X-CRM114-Status: GOOD ( 16.61 ) 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 Wed, 3 May 2023 at 12:34, Russell King (Oracle) wrote: > > On Tue, May 02, 2023 at 08:37:15AM +0200, Dmitry Vyukov wrote: > > On Mon, 1 May 2023 at 18:43, syzbot > > wrote: > > > > > > Hello, > > > > > > syzbot found the following issue on: > > > > > > HEAD commit: 89d77f71f493 Merge tag 'riscv-for-linus-6.4-mw1' of git://.. > > > git tree: upstream > > > console output: https://syzkaller.appspot.com/x/log.txt?x=1113550c280000 > > > kernel config: https://syzkaller.appspot.com/x/.config?x=4cc65ccad523b604 > > > dashboard link: https://syzkaller.appspot.com/bug?extid=0827f43974813b74e6db > > > compiler: arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > > userspace arch: arm > > > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > > Reported-by: syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com > > > > +arm mailing list > > > > Kernel started falling apart on arm during boot in various strange ways. > > Are these all the same hardware platform? If so, please check the > hardware with a known working kernel. These look like spurious failts > caused possibly the hardware platform failing. It happens in the same qemu that used to work before. So "hardware" is presumably working. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel