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=-4.0 required=3.0 tests=BAYES_00,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 1388AC433E2 for ; Fri, 11 Sep 2020 03:38:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D7FF8221EA for ; Fri, 11 Sep 2020 03:38:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725795AbgIKDid convert rfc822-to-8bit (ORCPT ); Thu, 10 Sep 2020 23:38:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:49314 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725730AbgIKDib (ORCPT ); Thu, 10 Sep 2020 23:38:31 -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: Fri, 11 Sep 2020 03:38:29 +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: gyakovlev@gentoo.org 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: 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 --- Comment #12 from gyakovlev@gentoo.org --- applied patch to linux-5.4.64, booted with iommu=nobypass and ran some stress-ng tests across all drives. looks good so far. wrote close to 1TB of test data, not a sign of a problem. performance is excellent. also booted linux-5.8.8 (without patch), just a tiny bit of IO triggers the error, controller does not recover after reset, everything hangs. I have not tested patched 5.8.8. Conclusion is - patch Oliver linked definitely helps and system is stable and performant. Hopefully it'll make into 5.4 and 5.8, I'll be patching manually meanwhile. Tested-by: Georgy Yakovlev -- You are receiving this mail because: You are watching the assignee of the bug.