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Tue, 20 Aug 2019 13:00:15 -0400 Received: from pps.filterd (m0134746.ppops.net [127.0.0.1]) by mx0a-00154901.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x7KGw6Hx011367; Tue, 20 Aug 2019 13:00:14 -0400 Received: from ausc60ps301.us.dell.com (ausc60ps301.us.dell.com [143.166.148.206]) by mx0a-00154901.pphosted.com with ESMTP id 2ugjqbjes1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 20 Aug 2019 13:00:14 -0400 X-LoopCount0: from 10.166.132.133 X-PREM-Routing: D-Outbound X-IronPort-AV: E=Sophos;i="5.60,349,1549951200"; d="scan'208";a="1346898468" From: To: CC: , , , , , , , , , , , Subject: RE: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support Thread-Topic: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support Thread-Index: AQHVVoBozBrF8LXinkuY9L30yxdXE6cCqCcggAGVAACAAAaZYA== Date: Tue, 20 Aug 2019 17:00:11 +0000 Message-ID: References: <20190819112223.15359-1-mika.westerberg@linux.intel.com> <5486107424db48f2a06ed4c8a81f75b0@AUSX13MPC101.AMER.DELL.COM> <20190820113404.pm6qvqakdkcwdpat@wunner.de> In-Reply-To: <20190820113404.pm6qvqakdkcwdpat@wunner.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Enabled=True; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_SiteId=945c199a-83a2-4e80-9f8c-5a91be5752dd; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Owner=Mario_Limonciello@Dell.com; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_SetDate=2019-08-20T17:00:10.4140031Z; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Name=External Public; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Application=Microsoft Azure Information Protection; MSIP_Label_17cb76b2-10b8-4fe1-93d4-2202842406cd_Extended_MSFT_Method=Manual; aiplabel=External Public x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.143.18.86] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-08-20_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908200155 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908200155 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org > -----Original Message----- > From: Lukas Wunner > Sent: Tuesday, August 20, 2019 6:34 AM > To: Limonciello, Mario > Cc: mika.westerberg@linux.intel.com; linux-kernel@vger.kernel.org; > andreas.noever@gmail.com; michael.jamet@intel.com; > YehezkelShB@gmail.com; rjw@rjwysocki.net; lenb@kernel.org; > anthony.wong@canonical.com; rajmohan.mani@intel.com; > raanan.avargil@intel.com; David.Laight@ACULAB.COM; linux- > acpi@vger.kernel.org > Subject: Re: [PATCH v3 0/8] thunderbolt: Intel Ice Lake support >=20 >=20 > [EXTERNAL EMAIL] >=20 > On Mon, Aug 19, 2019 at 04:29:35PM +0000, Mario.Limonciello@dell.com wrot= e: > > I've run into a problem when using > > a WD19TB that after unplugging it will cause the following to spew in d= mesg: > > > > [ 2198.017003] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D > > [ 2198.017005] WARNING: possible recursive locking detected > > [ 2198.017008] 5.3.0-rc5+ #75 Not tainted > > [ 2198.017009] -------------------------------------------- > > [ 2198.017012] irq/122-pciehp/121 is trying to acquire lock: > > [ 2198.017015] 00000000801d4de8 (&ctrl->reset_lock){.+.+}, at: > pciehp_check_presence+0x1b/0x80 > > [ 2198.017026] > > but task is already holding lock: > > [ 2198.017028] 000000000899e2eb (&ctrl->reset_lock){.+.+}, at: > pciehp_ist+0xaf/0x1c0 >=20 > This was first reported by Theodore in April and appears to be a > false positive: >=20 > https://lore.kernel.org/linux- > pci/20190402083257.kyqmirq4ovzscxsv@wunner.de/ >=20 > Thanks, >=20 > Lukas Indeed it does actually seem harmless and only comes up once. I've filed https://bugzilla.kernel.org/show_bug.cgi?id=3D204639 to track do= wn further what's going on.