From nobody Fri Sep 30 15:21:42 2022 X-Original-To: net@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 4MfDV04fj6z4f0rR for ; Fri, 30 Sep 2022 15:21:44 +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 4MfDV03XLLz3mMW for ; Fri, 30 Sep 2022 15:21:44 +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 4MfDV02bc8z1CdZ for ; Fri, 30 Sep 2022 15:21:44 +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 28UFLi5b090777 for ; Fri, 30 Sep 2022 15:21:44 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 28UFLiB1090776 for net@FreeBSD.org; Fri, 30 Sep 2022 15:21:44 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 264257] [tcp] Panic: Fatal trap 12: page fault while in kernel mode (if_io_tqg_4) - m_copydata ... at /usr/src/sys/kern/uipc_mbuf.c:659 Date: Fri, 30 Sep 2022 15:21:42 +0000 X-Bugzilla-Reason: CC AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-RELEASE X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rscheff@freebsd.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? maintainer-feedback? maintainer-feedback- maintainer-feedback? mfc-stable13? 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: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1664551304; 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=Xiu8uvXCkcEIGXecqwnmwGHner8TjnjmpFRYog30qjE=; b=Ii0TZvCHflT3zOzYWEVjfiqlhcCoZz7Qh94sKoXYD4pji1FkJH3VifqJndwwC3ov7b9ugO MoXGTfCz+PoGaGp3CcqTPxXgAsB9kwPettmB6X3bCl09OQenvJMOzzVIW4lIdRTptlppaL hLG1KunNkOwG7y5hfx1vIn90aqt75JfbRHxJMhSi/NbZkV7NIN01PkQ5eQ1dZof/aHTUEx +i0n2YHX8gVJewHMdJc4EJrWenoE5CK1FuFyjF7wLRMedaf2vNlEIDUsL4Z+J9TGwdU9jg gDy4X1/XPqT3ikK7cgmZLyyxebSStYqRUtTQzZHPdgsqZpIa5gP5yU9ZZVwDmg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1664551304; a=rsa-sha256; cv=none; b=TF/wlMQnSnyy6U2TihTWTth7J0Z7q6ZVmo6KMCMKll7fLYesTxD4m2IVe3VAhDR1qhK4v7 773it/Ex3ZAxDJ2BCxBMtzjel5MOFrctVWDq8XVZOAyOuDWqoBTlAWwMeUXaF+SIeiBCkV ZG17upvpJFHa+WryF2H34yRP+X+IMJiGLUqNWdAi9DwX2RkeDlTqKNVH9hoaA9rJxCNjCh 4qpFbeAQgWI23B5fMIL/c6q5F6c3+rL9v7yXaf9ZMnZMEqFPzXFt8rzyqjKvIBdQjR4PT8 wMgBdBf0+a+maEklT93QAeO58rd2xEnHApr93Uk0uJlOQ0p2/Y/MC8AbZXXuSA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264257 --- Comment #112 from Richard Scheffenegger --- (In reply to Christos Chatzaras from comment #111) Yes, this is very likely - the "fix offset" patch addresses the problematic sequence of events, leading to this off-by-one calculation.=20 MAIN: https://reviews.freebsd.org/rG6d9e911fbadf3b409802a211c1dae9b47cb5a2b8 STABLE-13: https://reviews.freebsd.org/rG0612d3000b974f31de15c90c77bf43f121fc8656 STABLE-12: https://reviews.freebsd.org/rG26370413d43bfd65500270ff331ae6bdf0f54133 The change is effectively identical, in all variants. (Without the other two fixes, the exact timing of packets being sent may not fully conform to TCP specs, but this doesn't materially impact stability or consistency at all). --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=