From nobody Sat Dec 30 18:02:24 2023 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 4T2VSx0R6wz55jqv for ; Sat, 30 Dec 2023 18:02:25 +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 4T2VSw4Dhgz4LNf for ; Sat, 30 Dec 2023 18:02:24 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1703959344; a=rsa-sha256; cv=none; b=YH59vkzcNC5cbzKVbY9vZcGEB+FmmP195+w5GfCIEGZmR/e07l6uCdQyXglIZDwF5NGlEW 0oIv1HY7Ci2y7BTA6BKfrUo27yOPwesUftqpWadwsV5OphRbtnJl0xqJJDbq4Oq0cgS9xD ffUZZ/05PPU0Jqj3Pf3zYj4nVR4z2bfJCZrG4s1g+62oU4sFvfgi0rfFBz3sg/Gvv3o7r0 VeeqnDCZCXgESIrjO73v2cGJDvVTuh85q1r8VM54BYSCziJ4GVcN6Nw6O7XZ/E/ed6HCRH pAW3vHPeB37lcReb1Vyub6xIFgbD4z2bFDxC1mp2lYdmSLoyZiWEZPy4x1IhXA== 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=1703959344; 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=SW+G7pqku1REYRsbEJ+HdsExRDnycioTBW0mqno/l7o=; b=axUu/1jNGP2MEvLXefb5mNapGedknbM6Po8yGgJZc7giM1/aEKgrlCdXHxt/9zxRqk+4cG oJzrvoItX6WLF6dLzuBgVtq+Efkyf6tXeal7W0yUwpGsKX0aS1djJ0OUInuam24y/nW3J0 BBGECqsQzI57jdRjwqb9SzSv7RAHJfGeSoMGmX6RKYA2CS4ofxW8hQSHEg5R7IQGvHnzzo uM9RqIGUIVgzGJsKSRWTh0M9cuZHbmwPgm4EVsZ24iKJ3WV2EEhcC73G4VPvESB1mtXcp1 08oVkFnsBUckHsgQbKqBqhZ+QK4EcgyD5Axt1/BLntYezuzs6FkqwARFq326ww== 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 4T2VSw3Gthz10m8 for ; Sat, 30 Dec 2023 18:02:24 +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 3BUI2Olu084673 for ; Sat, 30 Dec 2023 18:02:24 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 3BUI2OkN084672 for fs@FreeBSD.org; Sat, 30 Dec 2023 18:02:24 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: Sat, 30 Dec 2023 18:02:24 +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 #22 from Konstantin Belousov --- (In reply to Rick Macklem from comment #21) It would be very strange if this patch helped. More, I think it is somewhat dangerous because it can cause data corruption on itself. Issue is, not clearing pages dirty bits also does not remove write perms fr= om the existing mappings, allowing writers to continue write to the file mappi= ngs. I think that this allows more mapped writes to be lost. --=20 You are receiving this mail because: You are the assignee for the bug.=