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=-2.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham 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 41C4FC46477 for ; Sat, 15 Jun 2019 20:43:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 170E821852 for ; Sat, 15 Jun 2019 20:43:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726954AbfFOUnb (ORCPT ); Sat, 15 Jun 2019 16:43:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43226 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726857AbfFOUnb (ORCPT ); Sat, 15 Jun 2019 16:43:31 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 108A13083391; Sat, 15 Jun 2019 20:43:31 +0000 (UTC) Received: from treble (ovpn-112-16.rdu2.redhat.com [10.10.112.16]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 044F660CA3; Sat, 15 Jun 2019 20:43:24 +0000 (UTC) Date: Sat, 15 Jun 2019 15:43:20 -0500 From: Josh Poimboeuf To: Miroslav Benes Cc: jikos@kernel.org, pmladek@suse.com, joe.lawrence@redhat.com, kamalesh@linux.vnet.ibm.com, live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [PATCH v4 0/3] livepatch: Cleanup of reliable stacktrace warnings Message-ID: <20190615204320.i4qxbk2m3ee73vyg@treble> References: <20190611141320.25359-1-mbenes@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190611141320.25359-1-mbenes@suse.cz> User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Sat, 15 Jun 2019 20:43:31 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 11, 2019 at 04:13:17PM +0200, Miroslav Benes wrote: > This is the fourth attempt to improve the situation of reliable stack > trace warnings in livepatch. Based on discussion in > 20190531074147.27616-1-pmladek@suse.com (v3). > > Changes against v3: > + weak save_stack_trace_tsk_reliable() removed, because it is not needed > anymore thanks to Thomas' recent improvements > + klp_have_reliable_stack() check reintroduced in klp_try_switch_task() > > Changes against v2: > > + Put back the patch removing WARN_ONCE in the weak > save_stack_trace_tsk_reliable(). It is related. > + Simplified patch removing the duplicate warning from klp_check_stack() > + Update commit message for 3rd patch [Josh] > > Miroslav Benes (2): > stacktrace: Remove weak version of save_stack_trace_tsk_reliable() > Revert "livepatch: Remove reliable stacktrace check in > klp_try_switch_task()" > > Petr Mladek (1): > livepatch: Remove duplicate warning about missing reliable stacktrace > support > > kernel/livepatch/transition.c | 8 +++++++- > kernel/stacktrace.c | 8 -------- > 2 files changed, 7 insertions(+), 9 deletions(-) Thanks Miroslav for wrapping this up, and thanks to Petr for his previous work on this. Acked-by: Josh Poimboeuf -- Josh