From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f181.google.com (mail-dy1-f181.google.com [74.125.82.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84995282F08 for ; Tue, 28 Apr 2026 16:16:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777392972; cv=none; b=sJ7vevWFyRn5NLfhZG0waPxDLhpH/DNUJEGAM7BBbmV5rSVQQc8j+liL/z2xpucGmsd0cUYtEM/PbIN4/jwmbIBx6qK9Ngox9hSk23lejkUgz7+d6TR8uCOJ5DG98R3acRRD1khEU6t/6TjZfjwhMmiuNKbKJMwBy7XIEFeRW64= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777392972; c=relaxed/simple; bh=TtaW3H0nytyUhiBBvqDnDxaJpn7HTTIy2S80POslRPE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=C97PNv4Yj5UpnBkbMzx1tiXgNoDRwVtlXm5+2tbozKy7oERymhoEI20dIqaFUKtf6ZlSS1dVNJ+/zsUwFZitLG2hU7ioy7P6AvZiPru5mdCdpr28YSDSovJ4cBwFG0Dymj/DAxlXCmxDXzFc6BNwWcQdQckN3lcOoB8FGVNyehc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=roeck-us.net; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=jyxYnRk6; arc=none smtp.client-ip=74.125.82.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=roeck-us.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="jyxYnRk6" Received: by mail-dy1-f181.google.com with SMTP id 5a478bee46e88-2d8ffdc31d0so4099995eec.0 for ; Tue, 28 Apr 2026 09:16:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1777392969; x=1777997769; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=D0Ajfz03EZU8nPHsjDwmjRJ6eQdSzZGOVumC2AdpN68=; b=jyxYnRk6eKc/SZHXmu9AM9KbmsY8taE0VCzLdAyhSaQaZtSRDNeTAeTrJUbYHPOF6i fKoYxq8VOc+CXEh3qXm7CXmTD1fn8HHDJ+4ffypw5/i2+jKoJuuNALfTvnXsGHA/oWnX clDTdwhOo/WpdIxTLaEFO50veKIF3bObWl6glycLt7JjgYnZe6sw49kdQjxX4BexFUWl og08ezJ3YbwLOLhe/RKSwZ1Tb7mz5LHFudUeaRpLhnD+N7UaSC7oAKtJe5EASKNMVEPl 782WKUWtTLtAd8z3cbN7/Gdg2cAu+P75BdSojZAP5u+/VIkj6YlazYZlFPbKekE+DsB7 81JQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777392969; x=1777997769; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=D0Ajfz03EZU8nPHsjDwmjRJ6eQdSzZGOVumC2AdpN68=; b=Nm1gpwtp9/+lk+XT5Ny8aQ3Ns/t/NEutu8OkEGIp+QECXlSB8TgwQ1i8giC8fNtI2/ KR0JgZovgAkWx/lzeHQRtXNYohwxPxPy/+M6FYFSFPGewOY2ozso9H47fpyTdsZS/DP2 N4XT65pYs8rDyyBgfIQzutqD+mXU9jniMAUcFI6TPrtzB+e8Kl9VvU4tS/UmhMXjWhB1 NxGQ4cn+jn1Uro1bXFiTRYllXmE3bWn+oFYTIMYEYzvraLMmOggjKN8VNmZCCgw/efK0 hYeOkOnI8M+3/ku1wZ5QAE79i5VDstDhtqdlSJ9mC1TBEPLqvF6urV0LPl4S7rDq8kkH XH4Q== X-Forwarded-Encrypted: i=1; AFNElJ+48zbGmvP70TBnBK+t19saWncMpIafyQ5CssP5jxpft8v7R8D/RUbUzOYwylHI3P+XiObM/rBjXeco28k=@vger.kernel.org X-Gm-Message-State: AOJu0YzsPB++7ym1tLYT8ZIK0IjOcAtvQMT1oMUQeA2hzPWkvkdnQqvX FUBcwjJlNM3zSnzBE7/S4+K3saBwVA8BiXszZpEw1BcnR8os15cpKTOBQOO8iw== X-Gm-Gg: AeBDiesYNL5L4N9lgaunjvw2qhFMqRV/+tRYg5IXdOo6vvhv2rGTSDP6LF31g7TgKhL QxlEoca+FCOpVQ8EasrGFnKCERWTPWPiTonki7n0JTFyaZQIRLgpaMnPD/Auh/Pr2lfsKm6p4yz sHZ38UP0POpkahqI0VxBj4YDEo1qZJ5gvrNZWF7kVZ4Qqgi9J8/5vsuso8Do38qrpF0m97PaNFj lmRn35BmFkN0DvwhGdlBDzsc+bdx4RL++RnkZCQc74eVAX8ePyFTt/0zoZ3LIABmV01+gHukeHi 7PzZII+nwODPrhOZQIt1PAv1n0/pkPRGrXgP3yLSjIdCZQEEfmoNNNrppxc/TQbLR63JZdYFIue vML8QPK0g5Pm/jm90SgcAMrQ9T4OoLcAa4Gp26nIQUFuPGzZIcd84khCPO4mm7dHgLLs/KMa06S x6d2+Ww5UGft6670xHKajjcKwLDExuRtDj5PE/firbNKVPHio= X-Received: by 2002:a05:7301:1e94:b0:2c5:220c:5673 with SMTP id 5a478bee46e88-2ed09fe6feemr1827953eec.5.1777392969453; Tue, 28 Apr 2026 09:16:09 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2ed0a13f915sm2593105eec.31.2026.04.28.09.16.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Apr 2026 09:16:08 -0700 (PDT) Sender: Guenter Roeck Date: Tue, 28 Apr 2026 09:16:06 -0700 From: Guenter Roeck To: Stephen Eta Zhou Cc: Daniel Lezcano , Thomas Gleixner , linux-kernel@vger.kernel.org, Guenter Roeck , kernel test robot Subject: Re: [PATCH v2] clocksource: timer-sp804: Fix an Oops when read_current_timer is called on ARM32 platforms where the SP804 is not registered as the sched_clock. Message-ID: References: <20251225-fix_timersp804-v2-1-a366d7157f58@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Stephen, On Mon, Apr 27, 2026 at 11:39:42AM +0800, Stephen Eta Zhou wrote: > On 26/04/26 20:25, Guenter Roeck wrote: > > I found that the integratorcp qemu emulation still hangs unpredictably > > with this and the preceding patch in the tree. > > Hi Guenter, > > Thanks for the report. > > Could you share the QEMU command line, kernel config, and the detailed > steps you used to reproduce the hang? > > I will try to reproduce it locally and debug it from my side. > No worries. As I said, this was purely informational. Ever since 6.18 Linux started to break on more and more platforms in my tests. I can not keep up with testing or analyzing the problems, so as I find issues I report it and stop testing if the problem persists over a couple of releases. As in this case, it is obvious that no either one cares, that it is a problem with qemu, or a problem with my setup. Given all that, even if the problem is not related to my setup, it would be a waste of time trying to track it down or to keep testing. Thanks, Guenter