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=-3.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 872AFC4742C for ; Thu, 5 Nov 2020 09:04:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32C462073A for ; Thu, 5 Nov 2020 09:04:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="WfK03FCs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730179AbgKEJEu (ORCPT ); Thu, 5 Nov 2020 04:04:50 -0500 Received: from z5.mailgun.us ([104.130.96.5]:60422 "EHLO z5.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728553AbgKEJEs (ORCPT ); Thu, 5 Nov 2020 04:04:48 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1604567087; h=Content-Type: MIME-Version: Message-ID: In-Reply-To: Date: References: Subject: Cc: To: From: Sender; bh=/kilLHoG2diu6RpSa3tfIWIaNOYj+vv0zBOZ2rAIu6I=; b=WfK03FCs6nAXjtJNSYUONdTwyhTXNYzIprmzOtXVxT7xlM4p2cXpG1lyGlf3EoLpQREq+BYJ /Ap8QGWceYFr9sZ5Z4+aWqtkh8ZrzHhH2QEmYecad4ehxThG9ikUi5hh2BcFG5PZ6hqekNOY bQ0NGmmOTcwIt/Y+CJTukuvOJas= X-Mailgun-Sending-Ip: 104.130.96.5 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-west-2.postgun.com with SMTP id 5fa3c02e15332c7001f0676a (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 05 Nov 2020 09:04:46 GMT Sender: kvalo=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 87C19C433CB; Thu, 5 Nov 2020 09:04:46 +0000 (UTC) Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id B0E23C433C6; Thu, 5 Nov 2020 09:04:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org B0E23C433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=kvalo@codeaurora.org From: Kalle Valo To: Pavel Procopiuc , david@redhat.com Cc: ath11k@lists.infradead.org, linux-mm@kvack.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org Subject: Regression: QCA6390 fails with "mm/page_alloc: place pages to tail in __free_pages_core()" References: <87lffjodu7.fsf@codeaurora.org> <87ft5rszcs.fsf@codeaurora.org> <87ft5qsem9.fsf@codeaurora.org> <87blgdscxd.fsf@codeaurora.org> <229c31e7-9aff-18e6-a6db-be7b46331173@gmail.com> Date: Thu, 05 Nov 2020 11:04:41 +0200 In-Reply-To: <229c31e7-9aff-18e6-a6db-be7b46331173@gmail.com> (Pavel Procopiuc's message of "Wed, 4 Nov 2020 23:15:05 +0100") Message-ID: <87361onphy.fsf_-_@codeaurora.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org (changing the subject, adding more lists and people) Pavel Procopiuc writes: > Op 04.11.2020 om 10:12 schreef Kalle Valo: >> Yeah, it is unfortunately time consuming but it is the best way to get >> bottom of this. > > I have found the commit that breaks things for me, it's > 7fef431be9c9ac255838a9578331567b9dba4477 mm/page_alloc: place pages to > tail in __free_pages_core() > > I've reverted it on top of the 5.10-rc2 and ath11k driver loads fine > and I have wifi working. Oh, very interesting. Thanks a lot for the bisection, otherwise we would have never found out whats causing this. David & mm folks: Pavel noticed that his QCA6390 Wi-Fi 6 device (driver ath11k) failed on v5.10-rc1. After bisecting he found that the commit below causes the regression. I have not been able to reproduce this and for me QCA6390 works fine. I don't know if this needs a specific kernel configuration or what's the difference between our setups. Any ideas what might cause this and how to fix it? Full discussion: http://lists.infradead.org/pipermail/ath11k/2020-November/000501.html commit 7fef431be9c9ac255838a9578331567b9dba4477 Author: David Hildenbrand AuthorDate: Thu Oct 15 20:09:35 2020 -0700 Commit: Linus Torvalds CommitDate: Fri Oct 16 11:11:18 2020 -0700 mm/page_alloc: place pages to tail in __free_pages_core() -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches