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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04BB0C07E9D for ; Sat, 24 Sep 2022 07:40:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233387AbiIXHkL (ORCPT ); Sat, 24 Sep 2022 03:40:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233368AbiIXHkI (ORCPT ); Sat, 24 Sep 2022 03:40:08 -0400 Received: from mail-qt1-x834.google.com (mail-qt1-x834.google.com [IPv6:2607:f8b0:4864:20::834]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E61E56B8E for ; Sat, 24 Sep 2022 00:40:07 -0700 (PDT) Received: by mail-qt1-x834.google.com with SMTP id y2so1362012qtv.5 for ; Sat, 24 Sep 2022 00:40:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:from:to:cc:subject:date; bh=LwRw4I7ys8LuierT/yOkLB8imLHYXeUA/oaMPxfDLwQ=; b=Sh5AR2Zm3S2Y0FZ38wwlF6Hh4AwwDQ7NSGkLuBD+8aFe9/tQN3JoXHMjbkDiaGysAQ y7uwEvpNHJ/7tH4YCwal9cQPc059Qz+sB9nQVQnhIvLsLN5aSh85pl7J9vMgYHYNl586 vL2kEo/vi0jD0dgMxjyLpmolpPgtJwYsUFvSV29n67MbpC0AIZtOa+g4aCXsQRw7Rf6+ yYSDGR0PVbSsy+I4W/cDCHxi2vIPy57CBWD6QjkgsOawfPA8F56RzrNjvClQkEs6hsRL Pz85faVqWZLs2/Z0jGy0l6yWmvzApdH0VJ8agMm2Jpt2jQDXylUDCilyANuoF5DfiKQH 6SxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date; bh=LwRw4I7ys8LuierT/yOkLB8imLHYXeUA/oaMPxfDLwQ=; b=Q0/lao+zbM4V4NWbKemsIg5/2B13RP6vvKUPBTJhxFqU+lu3WUGxN8VAHuUTMFIEfh +pANn3UO2+eIJNdhuGntP+x+EJK4vr0kIknnYY9+Vec2pTrV1XqKN1P8X2cqEoADKTyX htOvo2jaOz1xUm9p7LZJfVpRH5TfE9Qxh4B0kgTOEEbSQRA6rupGKspFJMeMEmioa1GW snCXcmgCWT3RVmmna0k97VIcp97N2pOJ1EZEqU+ZOlSTiBjeIP4YJoqvBX3ljATwIgXJ jrQ9uF6Z3ONUKWml0u3ZIlJUZxVL5/CjFkNiC9d/otWTJtcWJGeOckua7bRVyff7xAVi 3emw== X-Gm-Message-State: ACrzQf3BCBMsx/I7CRgEUM/Ep7EdqcGqfcOqjHhZKl2QKc2IzBW1Mic2 mqh3OhDUHcTLaHhFFyqGKCg5Ig== X-Google-Smtp-Source: AMsMyM5eH3KoXCCdC3I9tQ677imJ9vsalaonClnjV8QJ6jv0XBWsKRt7/OSSIQYaz/u1AQ9pT19UVA== X-Received: by 2002:a05:622a:1991:b0:35b:a3d3:4b0f with SMTP id u17-20020a05622a199100b0035ba3d34b0fmr10179530qtc.358.1664005206574; Sat, 24 Sep 2022 00:40:06 -0700 (PDT) Received: from ripple.attlocal.net (172-10-233-147.lightspeed.sntcca.sbcglobal.net. [172.10.233.147]) by smtp.gmail.com with ESMTPSA id bp36-20020a05620a45a400b006bb78d095c5sm7583393qkb.79.2022.09.24.00.40.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Sep 2022 00:40:06 -0700 (PDT) Date: Sat, 24 Sep 2022 00:40:04 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@ripple.attlocal.net To: Borislav Petkov cc: Nathan Chancellor , "Rafael J. Wysocki" , Daniel Lezcano , Marek Szyprowski , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: Re: INFO: task systemd-udevd:94 blocked for more than 120 seconds. In-Reply-To: Message-ID: <28d03f8d-ed70-cdc8-70d3-7b1723e5715@google.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On Fri, 23 Sep 2022, Borislav Petkov wrote: > On Fri, Sep 23, 2022 at 12:18:56PM -0700, Nathan Chancellor wrote: > > I have not seen a stacktrace like this on my machines (although I > > suspect that is because I don't have CONFIG_DETECT_HUNG_TASK enabled in > > my configs) but my Honeycomb LX2 hangs while booting after commit > > 78ffa3e58d93 ("thermal/core: Add a generic thermal_zone_get_trip() > > function") according to my bisect, which certainly seems like it could > > be related to the trace you are seeing. > > Don't you just love how well our community works - one reports a bug and > someone else has already bisected it and thus saves one the work?! > > :-))) > > Thanks Nathan, I can confirm your bisection. The commit above doesn't > revert cleanly ontop of linux-next so I tried it and the patch before > it: > > 78ffa3e58d93 ("thermal/core: Add a generic thermal_zone_get_trip() function") <- BAD > 62022c15f627 ("Merge branch 'pm-opp' into linux-next") <- GOOD > > so it looks like that one is somehow b0rked. Yes, Nathan was alert, and saved me too from bisecting failure to boot linux-next in another thread. And I see from https://lore.kernel.org/lkml/c85a77a3-409b-3e83-08a7-ac7e1888790d@samsung.com/ that Marek also found it: and tried to fix it, but found it goes too wide. I made a patch of the offending series with git diff 78ffa3e58d93^ 2b109cffe683 and then reverted that cleanly from next-20220923: works for me. Hugh