From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 85151] pm80xx + 7805H + HP SAS port expander = mpi_smp_completion 2604:smp IO status 0x2 and sas: expander ... discovery failed(0xffffffa6) Date: Fri, 10 Oct 2014 22:00:12 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.kernel.org ([198.145.19.201]:43904 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754941AbaJJWAQ (ORCPT ); Fri, 10 Oct 2014 18:00:16 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 26B6820204 for ; Fri, 10 Oct 2014 22:00:15 +0000 (UTC) Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org [172.20.200.52]) by mail.kernel.org (Postfix) with ESMTP id 9DCD020212 for ; Fri, 10 Oct 2014 22:00:12 +0000 (UTC) In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=85151 --- Comment #13 from linux-ide@crashplan.pro --- Note: having 2 pieces of the HP SAS expander connected at the same time, one to each port of the Adaptec 7805H, results in a kernel oops: 35.475138] sas: DONE DISCOVERY on port 7, pid:137, result:-70 [ 35.477301] scsi 4:0:0:0: Enclosure HP HP SAS EXP Card 2.10 PQ: 0 ANSI: 5 [ 35.479756] scsi 4:0:0:0: Attached scsi generic sg1 type 13 [ 35.490335] ses 4:0:0:0: Attached Enclosure device [ 35.525143] BUG: unable to handle kernel NULL pointer dereference at 0000000000000290 [ 35.525889] IP: [] pm8001_dev_gone_notify+0x24/0x210 [pm80xx] [ 35.526618] PGD 0 [ 35.527324] Oops: 0000 [#1] SMP ... [ 35.530609] CPU: 0 PID: 36 Comm: kworker/0:1 Tainted: G OE 3.17.0-031700rc7-generic #201409281835 And with the later mainline kernel: [ 153.518720] sas: DONE DISCOVERY on port 7, pid:127, result:-70 [ 153.521380] scsi 4:0:0:0: Enclosure HP HP SAS EXP Card 2.10 PQ: 0 ANSI: 5 [ 153.526442] scsi 4:0:0:0: Attached scsi generic sg1 type 13 [ 153.539380] ses 4:0:0:0: Attached Enclosure device [ 153.551072] general protection fault: 0000 [#1] SMP ... [ 153.555559] CPU: 0 PID: 36 Comm: kworker/0:1 Tainted: G OE 3.17.0-999-generic #201409282205 -- You are receiving this mail because: You are watching the assignee of the bug.