From owner-freebsd-wireless@freebsd.org Sun Dec 1 13:24:09 2019 Return-Path: Delivered-To: freebsd-wireless@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 AE48D1AB137 for ; Sun, 1 Dec 2019 13:24:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 47QpqY4DD3z3L18 for ; Sun, 1 Dec 2019 13:24:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 8F20E1AB136; Sun, 1 Dec 2019 13:24:09 +0000 (UTC) Delivered-To: wireless@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 8EE4E1AB135 for ; Sun, 1 Dec 2019 13:24:09 +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) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47QpqY3Cp0z3L17 for ; Sun, 1 Dec 2019 13:24:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5262DF602 for ; Sun, 1 Dec 2019 13:24:09 +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 xB1DO91l041444 for ; Sun, 1 Dec 2019 13:24:09 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id xB1DO94T041441 for wireless@FreeBSD.org; Sun, 1 Dec 2019 13:24:09 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: wireless@FreeBSD.org Subject: [Bug 242337] iwm - rate 0 causes iwm panic (and work around) Date: Sun, 01 Dec 2019 13:24:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: wireless X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: dirkx@webweaving.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: wireless@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 MIME-Version: 1.0 X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Dec 2019 13:24:09 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D242337 --- Comment #2 from dirkx@webweaving.org --- As a workaround - in if_iwm.c -- simply picking the first rate from the tab= le (the slowest) makes things work again although it emits below error: iwm0: frame 0/230 b800002c UNHANDLED (this should not happen) tun0: link state changed to UP Function changed below. static int iwm_rate2ridx(struct iwm_softc *sc, uint8_t rate) { int i; for (i =3D 0; i <=3D IWM_RIDX_MAX; i++) { if (iwm_rates[i].rate =3D=3D rate) return i; } device_printf(sc->sc_dev, "%s: WARNING: device rate for %u not found!!\n", __func__, rate); // On KPN Experia ADSL modems - one somehow gets a rate=3D=3D0; // just picking the first value from the table works. if (rate =3D=3D 0) { device_printf(sc->sc_dev, "%s: WARNING: using first rate fom the table.\n", __func__); return 0; }; return -1; } --=20 You are receiving this mail because: You are the assignee for the bug.=