From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Khapyorsky Subject: Re: ac97 oops in ali modem driver Date: Mon, 3 Oct 2005 17:34:48 +0300 Message-ID: <20051003143448.GA15786@tecr> References: <20051003010109.GA27888@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from sa11.bezeqint.net (sa11.bezeqint.net [192.115.104.25]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 66AE61A6 for ; Mon, 3 Oct 2005 16:19:44 +0200 (MEST) Content-Disposition: inline In-Reply-To: <20051003010109.GA27888@redhat.com> Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Dave Jones Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On 21:01 Sun 02 Oct , Dave Jones wrote: > I just had a user file a Fedora bug with the following oops. Is there other messages from ali5451 loading? The sound works I guess? What do you see when 'ls /proc/asound/ali5451/codec97#0'? Sasha. > > Unable to handle kernel NULL pointer dereference at virtual address 000001a4 > printing eip: > df969005 > *pde = 12620067 > Oops: 0000 [#1] > Modules linked in: nfs radeon drm nfsd exportfs lockd nfs_acl autofs4 sunrpc pcmcia dm_mod vid > eo button battery ac yenta_socket rsrc_nonstatic pcmcia_core ohci_hcd shpchp i2c_ali1535 i2c_c > ore snd_ali5451 snd_ac97_codec snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_de > vice snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc prism54 8139cp m > ii floppy joydev ext3 jbd > CPU: 0 > EIP: 0060:[] Not tainted VLI > EFLAGS: 00010202 (2.6.13-1.1526_FC4) > EIP is at snd_ac97_valid_reg+0x5/0x135 [snd_ac97_codec] > eax: 00000000 ebx: 00000040 ecx: 00000000 edx: 00000040 > esi: 00000000 edi: 00000040 ebp: 00001f40 esp: ca515edc > ds: 007b es: 007b ss: 0068 > Process gstreamer-prope (pid: 10503, threadinfo=ca515000 task=da809aa0) > Stack: 00000040 df969149 de2ac800 00000001 d4fb1000 de3bf560 df9207ca 00000000 > fffffff4 de3bf560 db6b9000 df92d6b2 00000000 00000001 00000246 00000000 > 00000000 00000000 0000025c 0000025c d4fb1000 d4fb1000 fffffff4 de3bf560 > Call Trace: > [] snd_ac97_write+0x14/0x5a [snd_ac97_codec] > [] snd_ali_modem_hw_params+0x2c/0x4c [snd_ali5451] > [] snd_pcm_hw_params+0x290/0x609 [snd_pcm] > [] snd_pcm_hw_params_user+0x50/0x6a [snd_pcm] > [] snd_pcm_capture_ioctl1+0x2e/0x1ce [snd_pcm] > [] snd_pcm_capture_ioctl+0x0/0x1b [snd_pcm] > [] do_ioctl+0x19/0x55 > [] vfs_ioctl+0x50/0x1aa > [] sys_ioctl+0x5d/0x6b > [] sysenter_past_esp+0x56/0x79 > Code: Bad EIP value. > > > It looks like we're somehow ending up with card->ac97 == NULL. > This kernel is based on 2.6.13.2, with no ALSA patches other than > an unrelated emu10k1 diff. From eyeballing a quick diff of > the ali driver between 2.6.13.2 and current upstream 2.6.14rc3, > it doesn't look like this has been addressed already. > > Dave > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Power Architecture Resource Center: Free content, downloads, discussions, > and more. http://solutions.newsforge.com/ibmarch.tmpl > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-devel ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl