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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3DC31CA0EFA for ; Tue, 26 Aug 2025 09:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kgK6zVCaewV2AgflcmKRv9pWzRpDi+X/xM0/4eUVBak=; b=jw03l42HRQKBrPl6o3Yb3GQWef 1wJcSJ0DEckuc2WVcJuOSeDvy4PTVTWacKX8PG6XPLViTOI97iRBBlVoThalStJN8J5Z47vv7M1oo Lk2SvPhuKubE83MTRbtwFASs7Mm2P21Deymda6IICekc1wI6WCtiYuUGJ6eIK/kZ1rxhYhFBKgvL7 s7iqtdOoWBGtZPsPPrbIpFssDv2lMqUk494DhCWCp0yQGQv5R0gdF6LdkAAVYHNCnnS8w/4Y10C+f UvgBqWplxLWwtnrPDtmrSMIvHCAModHz3aSj0f6hkRg2SLZA25/XxaK3WPgTc6//hMrvoQG76tDKH Cax7kSxg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uqpij-0000000BGLZ-3kx4; Tue, 26 Aug 2025 09:12:01 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uqpgj-0000000BFKS-0gz8 for linux-nvme@lists.infradead.org; Tue, 26 Aug 2025 09:09:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1756199395; 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=kgK6zVCaewV2AgflcmKRv9pWzRpDi+X/xM0/4eUVBak=; b=ahQa88APKlWL52L5ei5MK02GrOmpuX8xffNOpg2/kD78mEYUmkNzxxemdllZ+KDl+GoFWj liuGcbw9rMP1XbvNZTLRLEtFUyofV2dWLyaGP9kZPI9lvRK9XZzqufuXSneHVx35tTk9kY EyGjBtJW//VYb2lwvj/bNfF0wNO1qiQ= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-626-bkekoeDEPDS-J6oAGgdWIQ-1; Tue, 26 Aug 2025 05:08:19 -0400 X-MC-Unique: bkekoeDEPDS-J6oAGgdWIQ-1 X-Mimecast-MFC-AGG-ID: bkekoeDEPDS-J6oAGgdWIQ_1756199298 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (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 mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AB241195419B; Tue, 26 Aug 2025 09:08:17 +0000 (UTC) Received: from fedora (unknown [10.72.116.57]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A231919560AB; Tue, 26 Aug 2025 09:08:12 +0000 (UTC) Date: Tue, 26 Aug 2025 17:08:05 +0800 From: Ming Lei To: Venkat Rao Bagalkote Cc: LKML , linux-nvme@lists.infradead.org, Nilay Shroff , linux-block@vger.kernel.org Subject: Re: [blktest/nvme/058] Kernel OOPs while running nvme/058 tests Message-ID: References: <3a07b752-06a4-4eee-b302-f4669feb859d@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3a07b752-06a4-4eee-b302-f4669feb859d@linux.ibm.com> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250826_020957_384983_3866B77A X-CRM114-Status: UNSURE ( 8.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Tue, Aug 26, 2025 at 02:00:56PM +0530, Venkat Rao Bagalkote wrote: > Greetings!!! > > > IBM CI has reported a kernel OOPs, while running blktest suite(nvme/058 > test). > > > Kernel Repo: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > > Traces: > > > [37496.800225] BUG: Kernel NULL pointer dereference at 0x00000000 > [37496.800230] Faulting instruction address: 0xc0000000008a34b0 > [37496.800235] Oops: Kernel access of bad area, sig: 11 [#1] ... > [37496.800365] GPR28: 0000000000000001 0000000000000001 c0000000b005c400 > 0000000000000000 > [37496.800424] NIP [c0000000008a34b0] __rq_qos_done_bio+0x3c/0x88 It looks regression from 370ac285f23a ("block: avoid cpu_hotplug_lock depedency on freeze_lock"), For nvme mpath, same bio crosses two drivers, so QUEUE_FLAG_QOS_ENABLED & q->rq_qos check can't be skipped. Thanks, Ming