Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261645AbVDCKXY (ORCPT ); Sun, 3 Apr 2005 06:23:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261654AbVDCKXX (ORCPT ); Sun, 3 Apr 2005 06:23:23 -0400 Received: from funkmunch.net ([202.173.190.158]:4056 "EHLO mail.funkmunch.net") by vger.kernel.org with ESMTP id S261645AbVDCKWp (ORCPT ); Sun, 3 Apr 2005 06:22:45 -0400 Message-ID: <424FC409.3020808@funkmunch.net> Date: Sun, 03 Apr 2005 20:23:05 +1000 From: Triffid Hunter User-Agent: Mozilla Thunderbird 1.0 (X11/20050321) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "SuD (Alex)" Cc: linux-kernel@vger.kernel.org Subject: Re: Oops in set_spdif_output in i810_audio References: <424F20F6.8010804@latinsud.com> In-Reply-To: <424F20F6.8010804@latinsud.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4032 Lines: 93 try turning off your internal modem in bios until someone works out whats going on here SuD (Alex) wrote: > Hi, i got a new ahtec laptop and i get null pointer oops everytime i > load i810_audio on 2.4 and 2.6 (including 2.6.11.6) kernels. > > *** These are init messages & oops: > i810_audio: Unknown symbol ac97_set_dac_rate > i810_audio: Unknown symbol ac97_release_codec > i810_audio: Unknown symbol ac97_set_adc_rate > i810_audio: Unknown symbol ac97_alloc_codec > i810_audio: Unknown symbol ac97_probe_codec > Intel 810 + AC97 Audio, version 1.01, 04:15:45 Jan 24 2005 > ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 10 (level, low) -> IRQ 10 > i810: Intel ICH4 found at IO 0x18c0 and 0x1c00, MEM 0xe0100c00 and > 0xe0100800, IRQ 10 > i810: Intel ICH4 mmio at 0xde9f3c00 and 0xdea84800 > i810_audio: Primary codec has ID 0 > i810_audio: Audio Controller supports 6 channels. > i810_audio: Defaulting to base 2 channel mode. > i810_audio: Resetting connection 0 > i810_audio: Connection 0 with codec id 0 > ac97_codec: AC97 Modem codec, id: CXT48 (Unknown) > i810_audio: codec 0 is a softmodem - skipping. > ... > EIP: 0060:[] Not tainted > EFLAGS: 00010246 (2.6.8-2-686) > EIP is at i810_set_spdif_output+0x22/0x160 [i810_audio] > eax: ffffffff ebx: 00000000 ecx: d9c28400 edx: d9c28400 > esi: 00000000 edi: 00000000 ebp: d6edfb80 esp: d7383e30 > ds: 007b es: 007b ss: 0068 > Process insmod (pid: 3358, threadinfo=d7382000 task=dca643b0) > Stack: 00004461 ffffffce c011c7f4 00000000 d6edfb80 00000000 d6edfc18 > 00000000 > dec4ff9f d6edfb80 ffffffff 00000000 dec51740 d7383e7c dda3c240 > 00000a04 > d9c28400 dec4fdb0 d6edfbb0 d9c28400 00000000 00000001 00000000 > 00000001 > Call Trace: > [] release_console_sem+0xc4/0xd0 > [] i810_configure_clocking+0xbf/0x4c0 [i810_audio] > [] i810_ac97_init+0x4a0/0x5d0 [i810_audio] > [] i810_probe+0x4af/0x690 [i810_audio] > > *** This is my device: > 0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801DB/DBL/DBM > (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03) > Subsystem: QUANTA Computer Inc: Unknown device 0707 > Flags: bus master, medium devsel, latency 0, IRQ 10 > I/O ports at 1c00 [size=256] > I/O ports at 18c0 [size=64] > Memory at e0100c00 (32-bit, non-prefetchable) [size=512] > Memory at e0100800 (32-bit, non-prefetchable) [size=256] > Capabilities: [50] Power Management version 2 > > > *** What happened in set_spdif_output: > struct ac97_codec *codec = state->card->ac97_codec[0]; > // ... for some reason codec is NULL, and then > if(!codec->codec_ops->digital) > // ... oops > > *** Why is that null? > Perhaps it is because the driver thinks that the card is a modem and > releases it. So no codecs are available, but some functions expect at > least one codec to exist. > > if(codec->modem) > { > printk(KERN_WARNING "i810_audio: codec %d is a > softmodem - skipping.\n", ac97_id); > ac97_release_codec(codec); > > And is detected as modem because of this condition (in ac97_codec.c): > /* Check for an AC97 1.0 soft modem (ID1) */ > if(codec->codec_read(codec, AC97_RESET) & 2) > I don't know much about ac97, i also have an ac97 modem. Anybody knows > what is wrong? > > Btw, Alsa snd-intel8x0 driver works, but as many distros still default > to Oss i think this bug should be hunt. > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/