From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=VSEi=4O=lists.ozlabs.org=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@kernel.org>
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 41D75C4BA10
	for <linuxppc-dev@archiver.kernel.org>; Wed, 26 Feb 2020 12:44:12 +0000 (UTC)
Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by mail.kernel.org (Postfix) with ESMTPS id E792921927
	for <linuxppc-dev@archiver.kernel.org>; Wed, 26 Feb 2020 12:44:11 +0000 (UTC)
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E792921927
Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=bugzilla.kernel.org
Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])
	by lists.ozlabs.org (Postfix) with ESMTP id 48SFqF4pgYzDqjx
	for <linuxppc-dev@archiver.kernel.org>; Wed, 26 Feb 2020 23:44:09 +1100 (AEDT)
Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized)
 smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org;
 envelope-from=srs0=+jiy=4o=bugzilla.kernel.org=bugzilla-daemon@kernel.org;
 receiver=<UNKNOWN>)
Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none)
 header.from=bugzilla.kernel.org
Received: from mail.kernel.org (mail.kernel.org [198.145.29.99])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by lists.ozlabs.org (Postfix) with ESMTPS id 48SDv26SpTzDqd2
 for <linuxppc-dev@lists.ozlabs.org>; Wed, 26 Feb 2020 23:02:22 +1100 (AEDT)
From: bugzilla-daemon@bugzilla.kernel.org
To: linuxppc-dev@lists.ozlabs.org
Subject: [Bug 206669] Little-endian kernel crashing on POWER8 on heavy
 big-endian PowerKVM load
Date: Wed, 26 Feb 2020 12:02:20 +0000
X-Bugzilla-Reason: None
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: AssignedTo platform_ppc-64@kernel-bugs.osdl.org
X-Bugzilla-Product: Platform Specific/Hardware
X-Bugzilla-Component: PPC-64
X-Bugzilla-Version: 2.5
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: glaubitz@physik.fu-berlin.de
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: platform_ppc-64@kernel-bugs.osdl.org
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-206669-206035-Goy8YjVFwa@https.bugzilla.kernel.org/>
In-Reply-To: <bug-206669-206035@https.bugzilla.kernel.org/>
References: <bug-206669-206035@https.bugzilla.kernel.org/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: https://bugzilla.kernel.org/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: linuxppc-dev@lists.ozlabs.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

https://bugzilla.kernel.org/show_bug.cgi?id=3D206669

--- Comment #6 from John Paul Adrian Glaubitz (glaubitz@physik.fu-berlin.de=
) ---
(In reply to npiggin from comment #5)
> I thought it might only be going down that path if you have already done
> some tracing. Perhaps ensure /sys/kernel/debug/tracing/tracing_on is set
> to 0, and then `echo 1 > /sys/kernel/debug/tracing/free_buffer` before
> you start the test.

I have done this now and I'm performing the test. Let's see if we can get s=
ome
more output.

> >> Okay. Any chance you could test an upstream kernel?=20
> >=20
> > Sure, absolutely. Any preference on the version number?
>=20
> Current head if you're feeling lucky, but v5.5 if not. But you can
> give the ftrace test a try with the debian kernel first if you've got
> it ready to go.

I think I will try the latest 5.5.x first. After the test with the Debian
kernel and tracing turned off.

--=20
You are receiving this mail because:
You are watching the assignee of the bug.=