From nobody Tue Feb 10 04:28:38 2026 Received: from mail-vs1-f52.google.com (mail-vs1-f52.google.com [209.85.217.52]) (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 5AE6A278E41 for ; Tue, 10 Jun 2025 07:18:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.217.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749539913; cv=none; b=Djr0W1XUbORlm/nT4TVc1KOd/sL4ijRe9aRXfAO087uUBxgxiP36URNL5J2zowGH4TcvenAXex6vW/lj13DjKZTs9kzaFXhLl2ZHAi8bzKFquPMQLzDyDS+VpKwnkOEzDh3b97vZYd2p8zm9SzP+ePtdYYPlI0O7ac/XnNsQoNY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749539913; c=relaxed/simple; bh=KHQLDsJ4E+kG/B+xHajjkoc/MZlUo7hjn+WFDIwXVtw=; h=MIME-Version:From:Date:Message-ID:Subject:To:Cc:Content-Type; b=Aq0bs2XNlc2w1/jKZv4TfFfOjzDl9ofVAOwNjGJRYJc6l3H9wd+wZXbuxxO4TKv+Cg1/PtDvqvsIXDYx7ySQk5ZnNlV9bYcgeWZCTxKmXXFOKuAG2HZSIfZAwohrdPDd76VsY8We7SuSBfqjvuFEWWcwfBKqK+cdRZLdckqFafc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=DzWk9FJ5; arc=none smtp.client-ip=209.85.217.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="DzWk9FJ5" Received: by mail-vs1-f52.google.com with SMTP id ada2fe7eead31-4e58d270436so1797155137.3 for ; Tue, 10 Jun 2025 00:18:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1749539910; x=1750144710; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=SkHumX+B+y86i8MSC5SJDKQ6nFwDO3pplzjQCYTDa/A=; b=DzWk9FJ5p5buHP5wsEAgTx2+YwHVnFAIaFUhqj0cGYXYUwA1Li+Z73RXGfycLoubM6 qY6MT8vCRUJxw3eiYnaUFvf3E32re/Nf6l6B4CniqwbR/9ikpclDh1qt4RAtOytHv7rA umNgogFgdngUzu883gpjb9qEgiCpT8jqqzC1fx6+W36K/KCBfR/FiZO7vA0IIgLOlNnE I73H2IOU2OlIMAXam5UjDB9fLhYT7gVGHeSXPIQRdnE286+eX+P8dafePJ+Hc16HzWMi kbDJWVn3JudRfClrnlwqiHEpEMqBe7n+AqmfwA+AR079t6zML5xiFsoFvLqw3hm/JIiT Tv1w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749539910; x=1750144710; h=cc:to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=SkHumX+B+y86i8MSC5SJDKQ6nFwDO3pplzjQCYTDa/A=; b=LNhFnowswpRbzmzRu7rYbsIi2UrLUQQ77C3COLvHA16knRVyqwvu+k4SmzQwliuXPp jGDAtc6VBg3Abgn+fav+lI6RdU5LzYEjs1cd/xMaf/72UjJ31b0iTCnPRrhyVoLZjZVK 5rA9AEB5I87PmkYo3PX118O4BLMbEO1qLrs4ImCJUXvoa9praKpp4hEcyxYU80aw/jTK SR1BDsU7rMikgWSy9Feob21ZtD5oLAUwKxIQ8y98ILQsr9w0dTjgwsgC47veY+20eWrQ dvKsayvjjLN3RhW/4c9LBHhSaOI7QfZ5Wbc1UpaKiBJDi+FkCxipbNORaDGeTE7EwQHG KC+g== X-Forwarded-Encrypted: i=1; AJvYcCV36QqI3uUCqKj5LgsksCo1Eog1SoKlLX/URFkwVkL0O4sup4/JR4y2KpHTnXpcmRuo2pHwS82lF3RP1bA=@vger.kernel.org X-Gm-Message-State: AOJu0YwALH/EE6iV3aUoZxnhRRKV3eN2ZUiuky3eQxR2SQdUPHf1CcdD vBNqjL5EuoybEpq7Q8H9v6UmNsiQVIvnT6zpt8YJcbMFu9O4e0YsnKBzuytdyLlfJpLHYPxZ0yo j7Dsls6aINewIo44n6LWZju6ILAdZkwnVST6PXWeTRg== X-Gm-Gg: ASbGncvyTv0LAyT9V+LqeASBTI5EUZZgJRTyXy3OX9Qd4T7ukHFIji7v3xK3AHuUURe QPVNVQLwq1A7QjoaJ0T05ZLwWL5KlFbpT9O4zDD9WN5TVd/ZK8P42uRJInZsv1LNInEWhDJuEYP ucZD9mnn4PKWRZGpgR3KYWAqTmLhCJFlCf6Qjjw/Yc7w7KItCgXx9uQdhrviL+QqhND8y91JGUt TQP X-Google-Smtp-Source: AGHT+IEWeK8X5+m8ElJSK5z3+ETpZn+gitvlG/z+JagvODDs6mTjgbOyPmSCoIASAzlc/+Rww7q/dUQ/dbl/qwPi6yI= X-Received: by 2002:a05:6102:4403:b0:4e2:a5b9:df1d with SMTP id ada2fe7eead31-4e7729acf70mr12705549137.8.1749539910181; Tue, 10 Jun 2025 00:18:30 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Naresh Kamboju Date: Tue, 10 Jun 2025 12:48:18 +0530 X-Gm-Features: AX0GCFs5HGZPW_5vlnOtlFErN9wZOl5LWlGniaDfW8i9KS2B_HI6AE7jX17fEGo Message-ID: Subject: Juno-r2 WARNING kernel time clockevents.c cev_delta2ns clockevents_config.part To: Linux ARM , open list , linux-clk , lkft-triage@lists.linaro.org, Linux Regressions Cc: Sudeep Holla , Anna-Maria Behnsen , Frederic Weisbecker , Thomas Gleixner , Liviu Dudau , Lorenzo Pieralisi , Mark Rutland , Arnd Bergmann , Dan Carpenter , Anders Roxell Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Regression while booting Juno-r2 with the Linux next-20250606 the following kernel warnings found. This boot warning was reproduced with juno-r2.dtb and juno-r2-scmi.dtb. Regressions found on Juno-r2 - boot warning Regression Analysis: - New regression? Yes - Reproducibility? Yes First seen on the next-20250606 Good: next-20250512 Bad: next-20250606 The suspected patch that found between tags is, # git show next-20250512..next-20250513 -- arch/arm64/boot/dts/arm/juno-base.dtsi commit 1fa3ed04ac55134063e3cd465b41aeb26715e52a Author: Sudeep Holla Date: Mon May 12 11:11:32 2025 +0100 arm64: dts: arm: Drop the clock-frequency property from timer nodes Drop the clock-frequency property from the timer nodes, since it must be configured by the boot/secure firmware. Cc: Liviu Dudau Cc: Lorenzo Pieralisi Cc: Mark Rutland Message-Id: <20250512101132.1743920-1-sudeep.holla@arm.com> Signed-off-by: Sudeep Holla diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi index 055764d0b9e5..9ccb80821bdb 100644 Reported-by: Linux Kernel Functional Testing --- a/arch/arm64/boot/dts/arm/juno-base.dtsi +++ b/arch/arm64/boot/dts/arm/juno-base.dtsi @@ -10,7 +10,6 @@ / { memtimer: timer@2a810000 { compatible =3D "arm,armv7-timer-mem"; reg =3D <0x0 0x2a810000 0x0 0x10000>; - clock-frequency =3D <50000000>; #address-cells =3D <1>; #size-cells =3D <1>; ranges =3D <0 0x0 0x2a820000 0x20000>; Boot regression: Juno-r2 WARNING kernel time clockevents.c cev_delta2ns clockevents_config.part Reported-by: Linux Kernel Functional Testing ## Boot warning [ 0.000000] timer_sp804: timer clock not found: -517 [ 0.000000] timer_sp804: arm,sp804 clock not found: -2 [ 0.000000] Failed to initialize '/bus@8000000/motherboard-bus@8000000/iofpga-bus@300000000/timer@110000': -22 [ 0.000000] timer_sp804: timer clock not found: -517 [ 0.000000] timer_sp804: arm,sp804 clock not found: -2 [ 0.000000] Failed to initialize '/bus@8000000/motherboard-bus@8000000/iofpga-bus@300000000/timer@120000': -22 [ 0.000000] arch_timer: frequency not available [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/time/clockevents.c:38 cev_delta2ns (kernel/time/clockevents.c:38 (discriminator 1)) [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-next-20250605 #1 PREEMPT [ 0.000000] Hardware name: ARM Juno development board (r2) (DT) [ 0.000000] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE= =3D--) [ 0.000000] pc : cev_delta2ns (kernel/time/clockevents.c:38 (discriminator 1)) [ 0.000000] lr : clockevents_config.part.0 (kernel/time/clockevents.c:49= 9) [ 0.000000] sp : ffff800082923cd0 [ 0.000000] x29: ffff800082923cd0 x28: 0000000000000400 x27: ffff8000816= 50000 [ 0.000000] x26: ffff80008292fcc0 x25: ffff800082425888 x24: ffff8000829= 343c0 [ 0.000000] x23: ffff800083210000 x22: 000000000000000b x21: ffff8000823= cf178 [ 0.000000] x20: ffff800082433880 x19: ffff00080021e240 x18: 00000000000= 00000 [ 0.000000] x17: ffff00080021a400 x16: ffff00080021a200 x15: 00000000000= 00100 [ 0.000000] x14: fffffdffe0008a00 x13: ffff800080000000 x12: 00000000000= 00000 [ 0.000000] x11: 0000000000000068 x10: 0000000000000100 x9 : ffff8000801= b50f8 [ 0.000000] x8 : 000000001dcd6500 x7 : 000000003b9aca00 x6 : 00000000000= 00020 [ 0.000000] x5 : 0000000000000020 x4 : 0000000000000000 x3 : 0000000f000= 00000 [ 0.000000] x2 : 0000000000000000 x1 : ffff00080021e240 x0 : 00000000000= 0000f [ 0.000000] Call trace: [ 0.000000] cev_delta2ns (kernel/time/clockevents.c:38 (discriminator 1)= ) (P) [ 0.000000] clockevents_config_and_register (kernel/time/clockevents.c:5= 19) [ 0.000000] arch_timer_mem_frame_register (drivers/clocksource/arm_arch_timer.c:1319 drivers/clocksource/arm_arch_timer.c:1580) [ 0.000000] arch_timer_mem_of_init (drivers/clocksource/arm_arch_timer.c:1653) [ 0.000000] timer_probe (drivers/clocksource/timer-probe.c:31) [ 0.000000] time_init (arch/arm64/kernel/time.c:62) [ 0.000000] start_kernel (init/main.c:1014) [ 0.000000] __primary_switched (arch/arm64/kernel/head.S:247) [ 0.000000] ---[ end trace 0000000000000000 ]--- [ 0.000000] arch_timer: cp15 and mmio timer(s) running at 50.00MHz (phys/phys). ## Source * Kernel version: 6.15.0-next-20250513 to 6.15.0-next-20250606 * Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/l= inux-next.git * Git sha: 4f27f06ec12190c7c62c722e99ab6243dea81a94 * Toolchain: gcc-13 ## Boot details * Boot lava log: https://lkft.validation.linaro.org/scheduler/job/8309469#L= 622 * Boot log: https://qa-reports.linaro.org/api/testruns/28679128/log_file/ * Boot warning: https://regressions.linaro.org/lkft/linux-next-master/next-20250605/log-par= ser-boot/exception-warning-cpu-pid-at-kerneltimeclockevents-cev_delta2ns/ * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2y4wg= EvmeoVH3Vr528M4YN2OBXY/ * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2y4wgEvmeoVH3Vr528M4= YN2OBXY/config -- Linaro LKFT https://lkft.linaro.org