From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3165159151 for ; Thu, 21 Mar 2024 12:07:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711022866; cv=none; b=ETQov6xmiacbVcIFW+GX9KDLkkG6V6T5NtDC1+N7NbY066b7TFI1zMs+7X3j5PjLPgpRZutQRVPsrJS6oBD6yGJidK12MmDRmcT4VcNjfCp8a9mTMXayzGUsd13qjlGqCdmmcgP5ZN27sA3yba9c6X2l6cbe/Jp8c//wFBdatEI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711022866; c=relaxed/simple; bh=X0tL/3FFAGPNviRZQumMrIGH7M5K6g7DYUNkbDET8/k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YnLdEiNO6xhPqPngYtrMo6XOCXDvxoJd7ZIPlq7lrcSBBTABmSEABAJ2znviHzYI3Ytt0SLTE7PZrY9LLWT5+zp4/laQVWLPkjo5YU4Isv+0LyGUrqZwe9vjsLetoWVcuORUsG3Qq7VqVIug19GTYiXyA6ezOMBL1v8CzvuLJng= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=iLne0evL; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="iLne0evL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1711022864; 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=aE2vIOB5AxhtNUIPZE0VWth2YHNZEb1JCikNc71y+sE=; b=iLne0evLTkCPwAdUFogooUSy2HOsu/tRvLDm0mKWqMknBNTMPmmggulLkgBFUJmDNMo04q H4NeC10OpqzFoFapjx7zk5snfeUBdiysRsP9PpaiMwPQtdmg3ti+/9YA+J68FccPSxgNaR ALqEY6zpuowc3WvMet/3ZGOJkdU/VtE= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-595-CxiE_PixOw6d_og37MHeuA-1; Thu, 21 Mar 2024 08:07:40 -0400 X-MC-Unique: CxiE_PixOw6d_og37MHeuA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 36D121C01E8D; Thu, 21 Mar 2024 12:07:40 +0000 (UTC) Received: from localhost (unknown [10.39.194.39]) by smtp.corp.redhat.com (Postfix) with ESMTP id 60D843C20; Thu, 21 Mar 2024 12:07:39 +0000 (UTC) Date: Thu, 21 Mar 2024 08:07:22 -0400 From: Stefan Hajnoczi To: syzbot Cc: jasowang@redhat.com, linux-kernel@vger.kernel.org, michael.christie@oracle.com, mst@redhat.com, osalvador@suse.de, pbonzini@redhat.com, syzkaller-bugs@googlegroups.com, virtualization@lists.linux.dev, xuanzhuo@linux.alibaba.com Subject: Re: [syzbot] [virtualization?] upstream boot error: WARNING: refcount bug in __free_pages_ok Message-ID: <20240321120722.GC1465092@fedora> References: <20240320113002.GA1178948@fedora> <000000000000e4b57b06141d250c@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="TO9rjoh4tmuqYx/1" Content-Disposition: inline In-Reply-To: <000000000000e4b57b06141d250c@google.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 --TO9rjoh4tmuqYx/1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 20, 2024 at 01:08:02PM -0700, syzbot wrote: > Hello, >=20 > syzbot has tested the proposed patch and the reproducer did not trigger a= ny issue: >=20 > Reported-and-tested-by: syzbot+70f57d8a3ae84934c003@syzkaller.appspotmail= =2Ecom >=20 > Tested on: >=20 > commit: 4bedfb31 mm,page_owner: maintain own list of stack_rec.. > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li= nux.git > kernel config: https://syzkaller.appspot.com/x/.config?x=3D527195e149aa3= 091 > dashboard link: https://syzkaller.appspot.com/bug?extid=3D70f57d8a3ae8493= 4c003 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Deb= ian) 2.40 >=20 > Note: no patches were applied. > Note: testing is done by a robot and is best-effort only. >=20 Good, that was the expected last working commit. Here is the next commit (it should fail): #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git= 217b2119b9e260609958db413876f211038f00ee --TO9rjoh4tmuqYx/1 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmX8IvoACgkQnKSrs4Gr c8gUEAf/UP1SqeIPex02ksQ+fvPCq8XcEw+bdapCwds2y2LtGptJziYCZMhzxZNw z8LNojdyW3N/AJd1HH+UXBWjTQUm1pI8WQ0Ryb+BuwlVFA/jlkj8vXjADM/yHsLO 9PMZtQ6ESvKS14trV8XZglo8XcOAatHKjlLPUO5wOZscWiDJ0HWi4CUdfp2Ue+dP cA3LRWfChQXTSoGJJGQaUGm/czzJP9iIX/FApyDgBuCM+zVAv7GKkdMQgvxG14on uVk8P/IfhSM6P5vOt7FvujGfW10Wk3ABaLQ2UvooLR75Nt1jQP0QDsH3opDNqgYp cD5ZF4ZCJznQyZE2UQ45+Gtt1Oq1Lg== =7YIU -----END PGP SIGNATURE----- --TO9rjoh4tmuqYx/1--