From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) (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 16D8572 for ; Fri, 19 Nov 2021 14:19:33 +0000 (UTC) Received: by mail-wr1-f49.google.com with SMTP id u18so18447308wrg.5 for ; Fri, 19 Nov 2021 06:19:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:reply-to:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=CcexMjZBNLCEwb0isvMRBl9q6LjY9wKO6CSmQ4SxqKs=; b=GSsT3LJ+VfwVLEkUAJ3qQq4FADKWRSDFklZAp0yWg2NNMGyGvPr1C9+40upDU7iUXB 72UbR7LMKFxCNerQVP8K8NMSsBEJI9h7GsO4zj3+WSafi7hEr0IrQZdIiw5cmSfFJZu1 7g7vX94n43eG47tY+0VykjPWLFzvy1oqNp9w+0D/d//nVhOnZfw0rDYjKQb3XqmsFoNV du3hQo63b+kAFBWG4KDuEPvy7uFentDQT/6D1up5Tc923gJSeomNmM+BxCLiXTc2S6DA ydb0VIEn2oliCcTSzySpBpL7E+YVS8TqJ5OwnAYlPuR+DSZF9W3uc1uVXhhhKgJGYaaB YClw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:reply-to :subject:content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=CcexMjZBNLCEwb0isvMRBl9q6LjY9wKO6CSmQ4SxqKs=; b=EXY1b6gTG1bDoW9mMUv50XYV+U3aBE7UyacNyn1P5xyU2kLz7JOTCAYW/XtV76w2Bq m2ArawlISM+q3u51iJenULji5hU6dU1FBnLw/sL69JYk0L/6bJ2wtOSaC1U+mWjoywZu q6oy30rduPImTNBODbJE+zTAed6BNBnITI2euHiIyS+8Zops4y/zgc2tUCFP3xaM3pzQ JrMXlKzaeWgjMeG4JMVd8Xip28tNzyAsUwWY1wb5WIsNE2zAtDaYOD0DEjw01GFNP49M nLt/p56BvjMZGDGHcfAWuOh9Ynrrrhz1q4P3K/LHmDyW+cQGVZYTDdHkGSLpgAp1AY/j iRYA== X-Gm-Message-State: AOAM530tuyyQOhp7091cNgFga9zpb/eu2O9+JNLBqg7YFbtTitqhJY9K 0Hx6UndZVFLcq56pHslGvP0= X-Google-Smtp-Source: ABdhPJzpuUEXW+pjwKeq+mxHngWCA4ASsBXWhd0rHOfoPKCoXSFm37D7Ea0GCxP1u6e4nMn8XOvFaA== X-Received: by 2002:a05:6000:1a45:: with SMTP id t5mr7773017wry.306.1637331571339; Fri, 19 Nov 2021 06:19:31 -0800 (PST) Received: from ?IPV6:2a02:8070:a2a8:1a00:815a:3ed0:1912:b9b7? ([2a02:8070:a2a8:1a00:815a:3ed0:1912:b9b7]) by smtp.googlemail.com with ESMTPSA id f15sm3918494wmg.30.2021.11.19.06.19.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 19 Nov 2021 06:19:30 -0800 (PST) Message-ID: Date: Fri, 19 Nov 2021 15:19:29 +0100 Precedence: bulk X-Mailing-List: ntfs3@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.1 Reply-To: uwe.sauter.de@gmail.com Subject: Re: Bug using new ntfs3 file system driver (5.15.2 on Arch Linux) Content-Language: de-DE To: Matthew Wilcox Cc: almaz.alexandrovich@paragon-software.com, ntfs3@lists.linux.dev, linux-fsdevel@vger.kernel.org References: From: Uwe Sauter In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Am 19.11.21 um 14:13 schrieb Matthew Wilcox: > On Fri, Nov 19, 2021 at 08:48:11AM +0100, Uwe Sauter wrote: >> [ 1132.645038] BUG: unable to handle page fault for address: 0000000000400000 >> [ 1132.645045] #PF: supervisor instruction fetch in kernel mode >> [ 1132.645047] #PF: error_code(0x0010) - not-present page >> [ 1132.645050] PGD 0 P4D 0 >> [ 1132.645053] Oops: 0010 [#1] PREEMPT SMP PTI >> [ 1132.645057] CPU: 7 PID: 429941 Comm: rsync Tainted: P OE >> 5.15.2-arch1-1 #1 e3bfbeb633edc604ba956e06f24d5659e31c294f >> [ 1132.645061] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./C226 WS, BIOS P3.40 06/25/2018 >> [ 1132.645063] RIP: 0010:0x400000 > > Your computer was trying to execute instructions at 0x400000. This > smells very much like a single bit flip; ie there was a function > pointer which should have been NULL, but actually had one bit flip > and so the CPU jumped to somewhere that doesn't have any memory > backing it. > > Can you run memtest86, or whatever the current flavour of memory testing > software is? > As I mentioned in the description the host is equipped with ECC memory. dmesg didn't show any sign of memory error that I would expect from a bit flip inside RAM. The hardware is * ASRock Rack C226 WS mainboard * Intel Xeon E3-1245 v3 * 4x Kingston 9965525-055.A00LF 8GB ECC memory. Also the host has been running fine after the bug triggered for 1.5h and today again for 7h.