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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8D22C4332F for ; Thu, 28 Oct 2021 02:16:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8CBC960F56 for ; Thu, 28 Oct 2021 02:16:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229752AbhJ1CRd (ORCPT ); Wed, 27 Oct 2021 22:17:33 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:56850 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229603AbhJ1CRc (ORCPT ); Wed, 27 Oct 2021 22:17:32 -0400 Received: by mail-io1-f70.google.com with SMTP id e21-20020a056602159500b005e14c45db21so2365391iow.23 for ; Wed, 27 Oct 2021 19:15:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=6yG8pcJo54/vxDX6p7Xpz0mDhkbXcuuHhQ0tF2/zx5g=; b=u8jZJ9uAhf/Ey4ESEAawX4PRyS5YINhSWKjUnP1g16efMFX9iJK1j+JPgzS+Jdq9qF lDP2FnC7QVSXH8gt4o7/8L0HoErdOmJZNn8M5ITH0TvdCEegEfiv/PNWahoJxheTEEFv l72li+h2fSPVB1qiRTNtPC5168YObTgjR/qlA3AlSNNdVJk4JycAxX2uwvRq9PFZow5e zW05ZlHjTFBuRgoTEwyv0cwt5mmQ1+FfdAak7f3BbqYcIbuYTEYpHOJ+SjwQVf0zUHss 3cqKXF0bADprJe+dcut8Ko26nqTgtlZQkPchRfvmdGfB+xJX/jgTz76WoHncc5nayYSe PXJQ== X-Gm-Message-State: AOAM5338k5jTUgJwZrAQclPR2NnG1bBMVB/phBGmxjxqoGPDN0MUrW7g sxG31OTHQZqX6zPN/wORh8OxIU8aE/vbJ+h463yCMk6f1ZbC X-Google-Smtp-Source: ABdhPJzcSorb1KARbjJuazLmAfL+5SdTTWdZypcGX+Si7N9T1NNDXJ4DOpUfV3/jg9EUyHmPOXTHGnfR0KVgoFgwpLcLEWUEbWTC MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1c4d:: with SMTP id d13mr1095444ilg.120.1635387306485; Wed, 27 Oct 2021 19:15:06 -0700 (PDT) Date: Wed, 27 Oct 2021 19:15:06 -0700 In-Reply-To: <0000000000000f73a805afeb9be8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000792dda05cf604775@google.com> Subject: Re: [syzbot] BUG: spinlock bad magic in synchronize_srcu From: syzbot To: bcm-kernel-feedback-list@broadcom.com, bhelgaas@google.com, bp@alien8.de, dave.hansen@linux.intel.com, devel@driverdev.osuosl.org, f.fainelli@gmail.com, gregkh@linuxfoundation.org, hpa@zytor.com, info@cestasdeplastico.com, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-pci@vger.kernel.org, linux-rpi-kernel-owner@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, lorenzo.pieralisi@arm.com, mchehab@kernel.org, mingo@redhat.com, nsaenzjulienne@suse.de, pbonzini@redhat.com, robh@kernel.org, sean.j.christopherson@intel.com, seanjc@google.com, sfr@canb.auug.org.au, syzkaller-bugs@googlegroups.com, tcs_kernel@tencent.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org syzbot suspects this issue was fixed by commit: commit eb7511bf9182292ef1df1082d23039e856d1ddfb Author: Haimin Zhang Date: Fri Sep 3 02:37:06 2021 +0000 KVM: x86: Handle SRCU initialization failure during page track init bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=143e2b02b00000 start commit: 78e709522d2c Merge tag 'for_linus' of git://git.kernel.org.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=2150ebd7e72fa695 dashboard link: https://syzkaller.appspot.com/bug?extid=05017ad275a64a3246f8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b72895300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14c42853300000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: KVM: x86: Handle SRCU initialization failure during page track init For information about bisection process see: https://goo.gl/tpsmEJ#bisection