From nobody Tue Jan 02 00:03:53 2024 X-Original-To: fs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4T3tP60LCMz55vWK for ; Tue, 2 Jan 2024 00:03:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4T3tP54qRlz3DYj for ; Tue, 2 Jan 2024 00:03:53 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1704153833; a=rsa-sha256; cv=none; b=lHkDQmS9nT6dJXFsD+Y0ku386soq7GnNbZEO8N+xZqoIRVHHEsuMuzxTT3SQowPF7kdrR8 aSIYk7XdiR1uE/LjdA7pf3DO68VvZMONYo7t1mzFl+5Yu0WS+80ZVw0jwPb+PvlDYGk0dx 08923vuwC8+X7my2jnppSwAWbufHsuBzpQmXEjD10JboEST843MWU6u2jpcIpiyObgYYJk DS4DzS8JKKoCp9zXd+t5JHYgMOaZs1+00qPhjJMzdl3AmGk23kfb/ODc50kTPY57zAaB7v cfcDFurKYXct/MQBqkAepUh5hN2Ok0o6MlaXyN9/jKOnj9a/7mjinoxBc6ChaA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1704153833; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ce6dkNAJZMZUYyuPi0OHCEgORUKpAEjHs1i2wYUauR0=; b=oEI3pU67YrZ3V/WOjYmxKyafkPak289m39GXH5MA55QveYEw7M+brta0z77/bvwOiPJeXl myEQFND+m5l1GKxZ3gWnMd31GlJmRu2lVjzn3bO5VyCBTomXK4/TC56wohAGynxLwTlTyH Qf5l3Fgj2kleJWFnd+zgoy6mjaGUvHQ4yLNkTj9cjjfMkLjrcb8DxhKGN5z+YJuUxcunfI zhhpAb6vvaLHEEDpp4PqdkOTiUeZ2MqX+FTCLg3D0nT4rW4tEvDbK6D/xPkTYj77L0fAm/ AVzb1oNWkKtNu4R45Gx0o6ERQV1ZsHObY3sxRhHizXov8AZVVZ7uUxfncSHWIw== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4T3tP53vwczf5V for ; Tue, 2 Jan 2024 00:03:53 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 40203rwK040191 for ; Tue, 2 Jan 2024 00:03:53 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 40203rEL040190 for fs@FreeBSD.org; Tue, 2 Jan 2024 00:03:53 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 276002] nfscl: data corruption using both copy_file_range and mmap'd I/O Date: Tue, 02 Jan 2024 00:03:53 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: kib@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276002 --- Comment #44 from Konstantin Belousov --- (In reply to Rick Macklem from comment #42) If the buffer size is 1M (shrug), then to map any page from this buffer, kernel would validate the whole buffer. At least this is the default setup where vfs.nfs.use_buf_pager is true. In other words, it should be not possible to have a buffer consisting of a single dirty page and rest of invalid pages. --=20 You are receiving this mail because: You are the assignee for the bug.=