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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A7F62E71060 for ; Thu, 21 Sep 2023 12:27:22 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=b687BW/T; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RrvmT1zYyz3cPN for ; Thu, 21 Sep 2023 22:27:21 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=b687BW/T; dkim-atps=neutral Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RrvlS20xMz2ymM for ; Thu, 21 Sep 2023 22:26:28 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1695299186; bh=bC6X1py1SuoJtQxgFRw2Ryvn0wAzoIONYvfkgObrO/E=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=b687BW/TgpeWKwniyy7LJa+Q+crc7hK9dcN5nxIiKaTQwPR20r4+nJoMYJ7svqNCj /9RmYxIq7saR8Kb1/TIP2XEODSZ4i5hv8Q/hZeq7pF11pfpX5EG7q1Ib7+4WXf6b2Q 8A7PwdhUfkL042R8T1EpbwTr+S5QU+MY4gwQ/D/+Jhje4RjhdUNe7v4w4rDLoIRrDx s08TCC0peYnEmH8y4ZL3QgHOv3QQcIu5t8azjGBN2Ko+2/C5eKQHnbVvMwhyhxAywb 8wqnarIilxNt6r1mqCBJ+jahygWV0uJGWRAKev5Wx5qUJzMjPWTsO/6HidLroKFqhB RpNBBqLs/S+hw== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4RrvlP6nYLz4wy9; Thu, 21 Sep 2023 22:26:25 +1000 (AEST) From: Michael Ellerman To: Petr Mladek , Joe Lawrence Subject: Re: Recent Power changes and stack_trace_save_tsk_reliable? In-Reply-To: References: <87o7ipxtdc.fsf@mail.lhotse> <87il8xxcg7.fsf@mail.lhotse> Date: Thu, 21 Sep 2023 22:26:22 +1000 Message-ID: <8734z7ogpd.fsf@mail.lhotse> MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: live-patching@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Nicholas Piggin , Ryan Sullivan Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Petr Mladek writes: > On Wed 2023-08-30 17:47:35, Joe Lawrence wrote: >> On 8/30/23 02:37, Michael Ellerman wrote: >> > Michael Ellerman writes: >> >> Joe Lawrence writes: >> >>> We noticed that our kpatch integration tests started failing on ppc64le >> >>> when targeting the upstream v6.4 kernel, and then confirmed that the >> >>> in-tree livepatching kselftests similarly fail, too. From the kselftest >> >>> results, it appears that livepatch transitions are no longer completing. ... >> > >> > The diff below fixes it for me, can you test that on your setup? >> > >> >> Thanks for the fast triage of this one. The proposed fix works well on >> our setup. I have yet to try the kpatch integration tests with this, >> but I can verify that all of the kernel livepatching kselftests now >> happily run. > > Have this been somehow handled, please? I do not see the proposed > change in linux-next as of now. I thought I was waiting for Joe to run the kpatch integration tests, but in hindsight maybe he was hinting that someone else should run them (ie. me) ;) Patch incoming. cheers