From nobody Fri May 27 16:13:51 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 5995D1B4CBF3 for ; Fri, 27 May 2022 16:13:51 +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 4L8qcH0hNVz3qq1 for ; Fri, 27 May 2022 16:13:51 +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 EBCFF25828 for ; Fri, 27 May 2022 16:13:50 +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 24RGDoFX004473 for ; Fri, 27 May 2022 16:13:50 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 24RGDot6004472 for net@FreeBSD.org; Fri, 27 May 2022 16:13:50 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] 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, 27 May 2022 16:13:51 +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: jhb@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=1653668031; 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=vpqW+iodrZC5A9AjUVONl4IPgKV2ktT3N3FUg/2FweU=; b=hr5uB3kwxndPrqAmKtH/oX70cLeTP7Zo8PH8M9U7hke6P3cromtd1zEe0H1SaGHeW7P4kL FF8IGCFMBXJwD6P4oMP6Mfh/jYbvbmjcOGnE+gZBsm/f5Rh8inkKDkkKYl6HvVDqg5eGGJ Qqtk7ABYurvyBjgowu/iPpXDaT+FeeU2J4JsG7Oe5OzrYFEtowzbzpDJtOEhhdw5iJFsvn GFcc1EWaooxox1miVzEovtUm85Cf4N/Ol6QaEUuEG/cr5GmdemEcDIvd6WM3hk+XxDW0jn 7sSzax9GPZ6B1AWg7LlIAW9GY77WHDFdcQHVRQzsGs4l94WPeOowqQtyubZ7zg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1653668031; a=rsa-sha256; cv=none; b=AgGzzjZiyBw4yDsCF0b83o+cMAkNzZoVJCgClO8dHu2hh1XfRfRg76Rx4WgKaRBrvRR+S7 lXUYEYFXhhYFo63GsujNgSxZSjkamhKDDxsdGSWqZ1II3GJNLgxc0bxzQg2iNN1vxEKekm WPLbcZhvSyC4KksoLvMD34ySXuGSuzApzzhfLu3g5JHpdJkLPtshSjgbbJfwOLr3d3hjrk A+B9JQjtxNSbcA77F1DqUDyIC/pVxaU+jADELVx2uIxpdKZU8jvz71b84rx5L2RTuPRYIh pLSY/TndvNNe208gS26GZ6lAQh6qFwNDSWgWIi7NNYZDzWCMjZQpiNKrTghgHg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264257 --- Comment #5 from John Baldwin --- Looks like it walked off the end of the mbuf chain as it tried to copy one = byte too many. You could try going up to frame 8 (tcp_output) to see if the arguments passed to m_copydata() are still around (looks like we know the m= buf chain via m@entry for frame 9, but knowing the original length and offset a= nd confirming it walked off the end would be good). You'd have to figure out = why the length was wrong though and that might need more digging in the tp or t= he like. --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=