From nobody Tue Dec 16 19:42:57 2025 Received: from mail-wm1-f73.google.com (mail-wm1-f73.google.com [209.85.128.73]) (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 502ED204877 for ; Thu, 20 Feb 2025 15:03:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740063832; cv=none; b=fu+UK6WacmBPXuDHaLTicHF6o/Mh7MUrMF/XsMGkXJHOkHw4lbZ/8yO4iIF8rwDKnGzMcRouFOWak1+EkQakuiYmFqMtK5rCyFeeZPAXTBBuxS4a7/MCH9J6CNvmApgyLoePlQ8hu63oAbfX6oqdYXz+Wtml3XoFrW4D5l03usk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740063832; c=relaxed/simple; bh=6us0OPPk/bMiyXUbfdqsVWAztptDhX3dd4CerV72Gpc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=YfNOVX6yNyI0howwy42BxsAhLJX40I++Pj3SlSYqdjaAS8ro3MGsA1zT8gwPD45XUwKSgoDJY9a8FYOSGyELI/jEotoq+Gys/uimdQ7XfErKVTTKNkHpw16PF1pche7ORnzoYjog8WZsHzsB4pXqh4g4zAUB5pmKo0sBunw1vBc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Ilp8yF2m; arc=none smtp.client-ip=209.85.128.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Ilp8yF2m" Received: by mail-wm1-f73.google.com with SMTP id 5b1f17b1804b1-4393ed818ccso6792755e9.3 for ; Thu, 20 Feb 2025 07:03:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1740063828; x=1740668628; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=n5anIIX08DH7I1Pe1I+Cw11KP1w7s/U6PELcC7zyacQ=; b=Ilp8yF2mhlguBz/pE42gDVU1Yv/8+JSRN4l1WY/AAnGP4Zvv9c6sVxXWZh7iTWc8tU BP8ZaZYjDnamyCYu4jDggFLG9NR3oCX8gGbubvw95jehcPWodq7by1FFqhP1OeZsc4Fk md20EeZ1XdzV/tIakH6kWPPFyzxkH81I2DVU3DLBYCHyP/XBDB4/yU/iWqsWGLDLbHHH RmuyZFXDSR5M5KAZudeNQ1uMhRaE0P3OulnLdIWCLRKW6ZrDvYDesGEtmkmdjK6fepad oMCtXnFQFeN3MDpCmuHtdYal4irDfMDWGx7/nIehKlFLlJ9I6/GqDI/KQ1JhQb+oHnz5 FpBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740063828; x=1740668628; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=n5anIIX08DH7I1Pe1I+Cw11KP1w7s/U6PELcC7zyacQ=; b=cT8QKN7G011/2hDe8KsnHvCQQGpcURaNd6hl4DkF87VwPqBtXpkBbbzttVc5YT1ZnL JSfhz/TW4//heZJhIFuwpAEhN4SEPzQ+rh8retYcTIuA0Kq1ECGUBGeRb9hREslPHlyJ Sso4Y+ZjjcTlH87T8xHmhR7LojRDeBrLNX7ReEq1LiruY4mPLe9J178u9haEQ7VGXu6j lD18PG4SexWL6ODiUavW67DcAEzot3hvKGwEERKTswn3G7QAEmCjcvnbk74gBXh+uqik 6NYIoz4gn6UQqUG9y7pJ5f1u9xYNEjuAaTG58vdAsitDdTxfxASmieK2dsvW/RrASAlb R6XA== X-Forwarded-Encrypted: i=1; AJvYcCX2p0Hdc05odzOwYdWVZ32mS4OENeJg78Y9MQYb3PdPDsP9hElLIPBlvbHMDMjEYwto1ruWAInuxt/yoqM=@vger.kernel.org X-Gm-Message-State: AOJu0YzFFK2JuuQSDqXVYGWtmlvhDOhzK/PNCyg2sjDD9vHRcZxAKYHN CBa0kLIlWsWG0vhOmfgCxZgxq2MBVa4BPtecjZA0KJ520h3hfLUjJkVonsU4mGcluVvZuP/Ys1S Yi7REXlHiGA== X-Google-Smtp-Source: AGHT+IGIpi/Y/94IOaJbe0uGO6m//Yh2Wsky4Ip3Q/V6kyqLVCBH3J882rU0thH0J4Ub/her4q4G/B/xr6R6VQ== X-Received: from wmbfk5.prod.google.com ([2002:a05:600c:cc5:b0:439:89d1:bf88]) (user=jackmanb job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:3b26:b0:439:985b:17d6 with SMTP id 5b1f17b1804b1-43999ddaa0bmr75459345e9.27.1740063828632; Thu, 20 Feb 2025 07:03:48 -0800 (PST) Date: Thu, 20 Feb 2025 15:03:17 +0000 In-Reply-To: <20250220-mm-selftests-v1-0-9bbf57d64463@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250220-mm-selftests-v1-0-9bbf57d64463@google.com> X-Mailer: b4 0.15-dev Message-ID: <20250220-mm-selftests-v1-5-9bbf57d64463@google.com> Subject: [PATCH 5/6] selftests/mm: Print some details when uffd-stress gets bad params From: Brendan Jackman To: Lorenzo Stoakes , Andrew Morton , Shuah Khan Cc: Mateusz Guzik , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Brendan Jackman Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable So this can be debugged more easily. Signed-off-by: Brendan Jackman --- tools/testing/selftests/mm/uffd-stress.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selft= ests/mm/uffd-stress.c index db5366b4766e5bfa2d1150d2f3c2d32469a6e28b..1facfb79e09aa4113e344d7d90d= ec06a37264058 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -456,7 +456,8 @@ int main(int argc, char **argv) =20 nr_pages_per_cpu =3D bytes / page_size / nr_cpus; if (!nr_pages_per_cpu) { - _err("invalid MiB"); + _err("invalid MiB %lu (%lu / %lu / %lu)", + nr_pages_per_cpu, bytes, page_size, nr_cpus); usage(); } =20 --=20 2.48.1.601.g30ceb7b040-goog