From owner-freebsd-sparc64@FreeBSD.ORG Mon Nov 21 19:58:15 2005 Return-Path: X-Original-To: sparc64@freebsd.org Delivered-To: freebsd-sparc64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8970E16A41F; Mon, 21 Nov 2005 19:58:15 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from speedfactory.net (mail6.speedfactory.net [66.23.216.219]) by mx1.FreeBSD.org (Postfix) with ESMTP id D25FA43D53; Mon, 21 Nov 2005 19:58:14 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (unverified [66.23.211.162]) by speedfactory.net (SurgeMail 3.5b3) with ESMTP id 2376779 for multiple; Mon, 21 Nov 2005 14:58:24 -0500 Received: from localhost (john@localhost [127.0.0.1]) by server.baldwin.cx (8.13.1/8.13.1) with ESMTP id jALJwAEw071090; Mon, 21 Nov 2005 14:58:10 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-sparc64@freebsd.org Date: Mon, 21 Nov 2005 14:31:29 -0500 User-Agent: KMail/1.8.2 References: <200511211422.57431.jhb@freebsd.org> In-Reply-To: <200511211422.57431.jhb@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200511211431.31051.jhb@freebsd.org> X-Spam-Status: No, score=-2.8 required=4.2 tests=ALL_TRUSTED autolearn=failed version=3.0.2 X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on server.baldwin.cx X-Server: High Performance Mail Server - http://surgemail.com r=1653887525 Cc: sparc64@freebsd.org Subject: Re: uart(4) busted on sparc64 now? X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Nov 2005 19:58:15 -0000 On Monday 21 November 2005 02:22 pm, John Baldwin wrote: > So on Friday I updated my ultra60 to HEAD. It had been running HEAD from > about a month ago. Today I came in and rebooted into the new kernel and > now it hangs probing uart1 off of a PUC device. Note that I do not have a > keyboard and mouse plugged into this box. > > New dmesg: > > puc0: addr 0x1400400000-0x140040007f > irq 43 on ebus0 uart0: on puc0 > uart0: CTS oflow > uart0: console (9600,n,8,1) > uart1: on puc0 > Looks like maybe it is spinning here: sab82532_bus_setsig(struct uart_softc *sc, int sig) { struct uart_bas *bas; uint32_t new, old; uint8_t mode, pvr; bas = &sc->sc_bas; do { old = sc->sc_hwsig; new = old; if (sig & SER_DDTR) { SIGCHG(sig & SER_DTR, new, SER_DTR, SER_DDTR); } if (sig & SER_DRTS) { SIGCHG(sig & SER_RTS, new, SER_RTS, SER_DRTS); } } while (!atomic_cmpset_32(&sc->sc_hwsig, old, new)); [halt - sent] KDB: enter: Line break on console [thread pid 0 tid 0 ] Stopped at kdb_enter+0x3c: ta %xcc, 1 db> tr Tracing pid 0 tid 0 td 0xc035a1f8 uart_intr_break() at uart_intr_break+0x24 uart_intr() at uart_intr+0x94 puc_intr() at puc_intr+0x54 psycho_intr_stub() at psycho_intr_stub+0x8 intr_execute_handlers() at intr_execute_handlers+0x78 intr_fast() at intr_fast+0x7c -- interrupt level=0xd pil=0 %o7=0xc00ddb5c -- sab82532_bus_setsig() at sab82532_bus_setsig+0xa0 sab82532_bus_attach() at sab82532_bus_attach+0xf0 uart_bus_attach() at uart_bus_attach+0x2d4 ... -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org