From owner-freebsd-net@freebsd.org Fri Mar 19 13:26:57 2021 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2A4FC5741BF for ; Fri, 19 Mar 2021 13:26:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4F24S10WsZz4m5Q for ; Fri, 19 Mar 2021 13:26:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 120645741BD; Fri, 19 Mar 2021 13:26:57 +0000 (UTC) Delivered-To: net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 11D4A573ED2 for ; Fri, 19 Mar 2021 13:26:57 +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 4F24S071W2z4m9t for ; Fri, 19 Mar 2021 13:26:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 E41BB1585F for ; Fri, 19 Mar 2021 13:26:56 +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 12JDQuqB073388 for ; Fri, 19 Mar 2021 13:26:56 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 12JDQu3W073387 for net@FreeBSD.org; Fri, 19 Mar 2021 13:26:56 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: net@FreeBSD.org Subject: [Bug 237441] Virtio net consistently truncates last byte of a fetch xfer with > 8956 bytes of payload Date: Fri, 19 Mar 2021 13:26:56 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: jrtc27@freebsd.org X-Bugzilla-Status: Closed X-Bugzilla-Resolution: Not A Bug X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc resolution 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 MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Mar 2021 13:26:57 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237441 Jessica Clarke changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jrtc27@freebsd.org Resolution|FIXED |Not A Bug --- Comment #10 from Jessica Clarke --- (In reply to Adam Chappell from comment #9) There wasn't one, it's still broken, we've independently been trying to work out what on earth was going on causing us to see the same thing (without realising it was only affecting macOS hosts) until we stumbled upon this report. Not a bug in FreeBSD (well, unless MSG_OOB should be enforced, but then eve= ry OS has the same bug), just POLLPRI being extremely ill-defined, SLiRP tryin= g to be helpful and TCP urgent being ubiquitously misunderstood all interacting together to result in this unfortunate outcome. Should no longer occur once QEMU pulls in https://gitlab.freedesktop.org/slirp/libslirp/-/commit/7271345efe182199acae= ae602cb78a94a7c6dc9d; thanks for figuring that one out so we didn't have to. --=20 You are receiving this mail because: You are on the CC list for the bug.=