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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72421C54FC9 for ; Mon, 20 Apr 2020 03:18:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4BB91214AF for ; Mon, 20 Apr 2020 03:18:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726025AbgDTDSD convert rfc822-to-8bit (ORCPT ); Sun, 19 Apr 2020 23:18:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:36180 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725988AbgDTDSD (ORCPT ); Sun, 19 Apr 2020 23:18:03 -0400 From: bugzilla-daemon@bugzilla.kernel.org To: linux-scsi@vger.kernel.org Subject: [Bug 206123] aacraid ( PM8068) and iommu=nobypass Frozen PHB error on ppc64 Date: Mon, 20 Apr 2020 03:18:03 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo scsi_drivers-aacraid@kernel-bugs.osdl.org X-Bugzilla-Product: SCSI Drivers X-Bugzilla-Component: AACRAID X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: oohall@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: scsi_drivers-aacraid@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=206123 Oliver O'Halloran (oohall@gmail.com) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |oohall@gmail.com --- Comment #4 from Oliver O'Halloran (oohall@gmail.com) --- (In reply to Timothy Pearson from comment #3) > If I'm decoding this right, the EEH is caused by a PCIe configuration space > write, triggering a correctable error in the PCIe core. I have no way of > knowing if the address reported is valid (I suspect it is not) but would be > 0x0. $ pest 8300b03800000000 8000000000000000 Transaction type: DMA Read Response Invalid MMIO Address TCE Page Fault TCE Access Fault LEM Bit Number 56 Requestor 00:0.0 MSI Data 0x0000 Fault Address = 0x0000000000000000 A TCE fault makes more sense given that it doesn't happen when bypass is enabled. I'm leaning towards this being a driver bug, but it could be a powerpc IOMMU specific issue. I'll investigate. -- You are receiving this mail because: You are watching the assignee of the bug.