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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,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 E50A4C433B4 for ; Mon, 26 Apr 2021 19:45:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7CD061359 for ; Mon, 26 Apr 2021 19:45:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241611AbhDZTqY (ORCPT ); Mon, 26 Apr 2021 15:46:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241622AbhDZTqR (ORCPT ); Mon, 26 Apr 2021 15:46:17 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80A94C061756 for ; Mon, 26 Apr 2021 12:45:33 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id s9so7609441ljj.6 for ; Mon, 26 Apr 2021 12:45:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=eZO4kmNKLbEnSNeVac4oUitph0OSEkvoJcTmzFLrNOc=; b=YNlj+IwtjOUvERORkSXzpcVq5HacWyXge4byLQC17HNKgb/rO/rE+uFzlNFawMjkLe 1lzT82DtdNkZXHWzGRjPP+b1FSJEWlWR8NQnBS/bA171m5RPEPJSsqdiMUK3zAYOYq+p qNK6JZXkWiCdLyWEcIfXDCiALLMUhYvlpe9C8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=eZO4kmNKLbEnSNeVac4oUitph0OSEkvoJcTmzFLrNOc=; b=YBywEQS14b/SQMFEZhhLGRb1+07s+mopTfqHH4aXkIg1LIzv+B31a7VTYOdO/XXmLm e8zMBiB0I3uREwKkwX1iiWaAonesgbkh3OCbtD+7c+kmeO9T54vmMvmuDIAL8LAJZPFN AoTN6gUXWbfkeIB7X02BdB9uPWhhkk05qkyNypLZBSrrSy21sjqhhpW8gtvh4w2AqYez OzykLo7NaysEChmuASedKDbCo+gu/WgA8wZd7uYZaWisHoejuoKpN5ScMjvuDUwUNx90 y0GW/b34/5iVRcdKx70jJ5onDVGunGv1hPyvMt9/Q0LAIEbVPFwokCuQBosqsAsokVXI EjOA== X-Gm-Message-State: AOAM531pxys6JDXPCBbZpWAaOWc1HR/W4UQLOGqQYMCiih5K/g64fVAx q+qB8HBG1wdaVopVpwlQlUNVBDD7LW8dusfB X-Google-Smtp-Source: ABdhPJye8OsjxyklAkyyBHKKmz8RXJCXDtyXTfGM4VOuHx53YUpVxKHC2xWgoxR2IAtLarDkArw6Yw== X-Received: by 2002:a2e:2a05:: with SMTP id q5mr14096714ljq.398.1619466331885; Mon, 26 Apr 2021 12:45:31 -0700 (PDT) Received: from mail-lj1-f177.google.com (mail-lj1-f177.google.com. [209.85.208.177]) by smtp.gmail.com with ESMTPSA id l10sm101864ljc.119.2021.04.26.12.45.31 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Apr 2021 12:45:31 -0700 (PDT) Received: by mail-lj1-f177.google.com with SMTP id m7so54696443ljp.10 for ; Mon, 26 Apr 2021 12:45:31 -0700 (PDT) X-Received: by 2002:a2e:a17a:: with SMTP id u26mr14019906ljl.465.1619466331327; Mon, 26 Apr 2021 12:45:31 -0700 (PDT) MIME-Version: 1.0 References: <09464e67-f3de-ac09-28a3-e27b7914ee7d@skogtun.org> <34d778fa-343f-912f-2fd7-a8ba49bd1b95@skogtun.org> <54debab9a79df628cff86a637dde13c281001578.camel@sipsolutions.net> In-Reply-To: <54debab9a79df628cff86a637dde13c281001578.camel@sipsolutions.net> From: Linus Torvalds Date: Mon, 26 Apr 2021 12:45:15 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [BISECTED] 5.12 hangs at reboot To: Johannes Berg Cc: Harald Arnesen , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 26, 2021 at 12:38 PM Johannes Berg wrote: > > > > > dmesg from 5.12 without the revert is attached. > > That's it? There it just hangs? Not even printing something about tasks > getting stuck? I assume the dmesg is from before trying to shut the system down. Useful mainly to see what the hardware is, than to debug the hang itself. So it looks like it's an Atheros AR9462. That doesn't sound too unusual. Getting a dmesg from the actual shutdown is tricky, because the system is obviously no longer usable at that point. You tend to need serial consoles etc. Shutdown hangs can be a bit nasty to debug for that reason (similar to suspend/resume issues). Linus