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 62A0CC77B76 for ; Fri, 21 Apr 2023 22:02:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231297AbjDUWCk (ORCPT ); Fri, 21 Apr 2023 18:02:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233605AbjDUWCi (ORCPT ); Fri, 21 Apr 2023 18:02:38 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F8691706 for ; Fri, 21 Apr 2023 15:02:37 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id 3f1490d57ef6-b8f39b41c7aso3683539276.1 for ; Fri, 21 Apr 2023 15:02:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1682114556; x=1684706556; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=/iD3qt6L/9eIA2IG8ixj9iGFT9v9AV5dfMH5CVDuDCg=; b=F6ZubW8g+gwNfJJVuA9hJZzGaJ3LhuuPSOaTYGGUTvuPZTmHhlXY//8X2sE7ttz5rf 44QY40WtQCKhT4kqqYB1YNAvBPjo1JTvTCarqpTgFCvdkkslc/XqKSGjskX704p3On8F wbQ9KfAM865KX9NmtAKqz8AoKX+qSWUEWcYnJt/6ocJN4oDxYYNoWBsjKgyz8mVvt+ab g2FtKw9vOYQCVHaoFKXwWws2d8ZhpG2oMvjVN/xMm9RE7U8KC7j5MJeG20JQ0/YXuIw4 St8WxM8oaSXAS6+iJNa+dpxiKkIuj6pw4kbAWe8W3o29W+JQ2dgeaLGRBpkurXo9OCv3 Y5ow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682114556; x=1684706556; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/iD3qt6L/9eIA2IG8ixj9iGFT9v9AV5dfMH5CVDuDCg=; b=UZVE0LF3Q3F3SFbFCbCFXPH0ZGBFdXFQ816FVjjcOGv4dWHzUkWkCECBFlAqvDodNY kNxZX4Cu8zoQ5Piqkha3sSL7EfzLeQK2gWDIunZb/p7bxV2mb5643nutHaOBDw9ZifT9 xMFiMxe6dBFKRibx4ojRgVQGaXobYCyY0KFztQk3Qb6wL0dvdlcxIABMWfRysRLecdqL INaMIMcYY4aokRnj/xbt+dJDJ/nBjw8jsYkly0QJqQQ+sTzf27KhxSRo3ZQ7xiPpBi9o bk8DDhiXIH6jiw8C7fU43eSV6ZvRWtfW/B0jCJgCzPY3C8h1vGHz2xfeIa5RJKCOLbxD 5t/Q== X-Gm-Message-State: AAQBX9ei+8+0UrCzzN+mNau9xeQDV97t6QT+nUISLachuaz34AgRkPVx I/AsaMD6GIkehpn4P5qzEiUvaCis9xA= X-Google-Smtp-Source: AKy350ZJArJjYJmChAK3H8h5Je7XsDefbKHK/Mg/eh7moGKIFIO+mVnNkYs1UI43rAPeQkUnocXpW/RFdHA= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a25:d013:0:b0:b99:4473:ed93 with SMTP id h19-20020a25d013000000b00b994473ed93mr535259ybg.4.1682114556524; Fri, 21 Apr 2023 15:02:36 -0700 (PDT) Date: Fri, 21 Apr 2023 15:02:34 -0700 In-Reply-To: <000000000000a0bc2b05f9dd7fab@google.com> Mime-Version: 1.0 References: <000000000000a0bc2b05f9dd7fab@google.com> Message-ID: Subject: Re: [syzbot] [kvm?] WARNING in kvm_tdp_mmu_invalidate_all_roots From: Sean Christopherson To: syzbot Cc: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Apr 21, 2023, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: d3e1ee0e67e7 Add linux-next specific files for 20230421 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=16ac3de0280000 > kernel config: https://syzkaller.appspot.com/x/.config?x=53c789efbcc06cf6 > dashboard link: https://syzkaller.appspot.com/bug?extid=094a74444165dbcd3a54 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/c558a9e1fe6a/disk-d3e1ee0e.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/2ec100a34c4c/vmlinux-d3e1ee0e.xz > kernel image: https://storage.googleapis.com/syzbot-assets/1afcd9936dc1/bzImage-d3e1ee0e.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+094a74444165dbcd3a54@syzkaller.appspotmail.com Time to see if syzbot gets confused by a fix that was squashed into the guilty commit. #syz fix: KVM: x86: Preserve TDP MMU roots until they are explicitly invalidated