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 51B30C6FA8F for ; Wed, 30 Aug 2023 00:33:32 +0000 (UTC) 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=Dw+eJVuS; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Rb4yy4LKMz3bTt for ; Wed, 30 Aug 2023 10:33:30 +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=Dw+eJVuS; dkim-atps=neutral Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) (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 4Rb4xh2KrRz2yTy for ; Wed, 30 Aug 2023 10:32:24 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1693355539; bh=rtqXqefWaBdTc7Vn+73gF/lqYmAcwv/JWQvT26wbRSU=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=Dw+eJVuSXBbZmTNgDCl9I9pzEsIFC4a0h4ZYqDY5K0Fs2xZja4AOo5QTJg+6auudC JhgQ4R+fZoowT3VPKIAXTJqagwnq2h7AB8MoGA1CSRZ7Lc8zGsiVyND2jwzDFVS/uM 04n/Azom2vQmSJuOE/oGtJRYAVkYK+Y4zu9Bm1xHEeMJWzmlRbmr5kgJ1ZFhZ3zKBd OPr76+tCyHGusUkwvOZHXrWm+tSpdkgYUzNZc9qSN7F/wwp4pvjEbCE4leu6xsf+sN 9oo1OeMqU+hqH4SOYkKD/jy7XLFXNp300yQ+Y4pAHQ8o0DKMyoN+BNTlpzz0Vl/7UG KEs+oveCmJBKA== 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 4Rb4xb2X0Dz4wd0; Wed, 30 Aug 2023 10:32:19 +1000 (AEST) From: Michael Ellerman To: Joe Lawrence , linuxppc-dev@lists.ozlabs.org Subject: Re: Recent Power changes and stack_trace_save_tsk_reliable? In-Reply-To: References: Date: Wed, 30 Aug 2023 10:32:15 +1000 Message-ID: <87o7ipxtdc.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, Joe Lawrence , Ryan Sullivan Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Joe Lawrence writes: > Hi ppc-dev list, > > 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. Hi Joe, Thanks for the report. I thought I was running the livepatch tests, but looks like somewhere along the line my kernel .config lost CONFIG_TEST_LIVEPATCH=m, so I have been running the test but it just skips. :/ I can reproduce the failure, and will see if I can bisect it more successfully. cheers