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R5E50 problem -- alsa driver crash during boot http://forums.linhes.org/viewtopic.php?f=1&t=14496 |
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Author: | wfdudley [ Wed Mar 07, 2007 8:49 pm ] |
Post subject: | R5E50 problem -- alsa driver crash during boot |
I ran R5D1 successfully for months. Did a fresh install of R5E50 on the same hardware (except a fresh 250Gig drive). During boot, alsa driver crashes. Subsequently, system runs (well, at least sound does work if I connect to /dev/mixer1). But if I try to run aumix or alsamixer on the 0 sound card, it will hang forever. /dev/mixer1 corresponds to the (VIA) motherboard sound hardware. My guess is that the PC-HDTV card onboard sound interface is what's doing this. Why is this happening on R5E50 but not the prior release? How can I fix this? Thanks, Bill in New Jersey Tuner Card is: PC-HDTV x000 (doesn't say on the card) about which lspci says: 00:09.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05) 00:09.1 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] (rev 05) 00:09.2 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05) 00:09.4 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05) BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: deabd70b *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP Modules linked in: gameport snd_ac97_codec snd_ac97_bus snd_mpu401_uart usbhid snd_rawmidi snd_seq_device parport_pc parport cx88_dvb cx8802 cx88_vp3054_i2c mt352 dvb_pll or51132 video_buf_dvb dvb_core nxt200x isl6421 zl10353 cx24123 lgdt330x cx22702 8250_pnp 8250 serial_core cx88_alsa snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc cx8800 cx88xx i2c_viapro serio_raw via_ircc irda ehci_hcd uhci_hcd usbcore bt878 tuner tvaudio tda7432 bttv video_buf firmware_class ir_common compat_ioctl32 i2c_algo_bit btcx_risc tveeprom i2c_core videodev v4l1_compat v4l2_common shpchp pci_hotplug via_agp agpgart evdev CPU: 0 EIP: 0060:[<deabd70b>] Not tainted VLI EFLAGS: 00010202 (2.6.18-chw-13 #1) EIP is at snd_cx88_capture_volume_get+0xb/0x30 [cx88_alsa] eax: 00000000 ebx: dc373440 ecx: 00000001 edx: dbced000 esi: 00000000 edi: dbced040 ebp: 00000000 esp: ddda9da4 ds: 007b es: 007b ss: 0068 Process amixer (pid: 2058, ti=ddda8000 task=ddea8770 task.ti=ddda8000) Stack: debb674f dc373440 dbced000 22222222 dc4f054c 00000000 dc4f05bc dbced000 dc4f0400 debb7f83 dc4f0400 dbced000 ddda9df4 dc31b260 00000000 debd4000 00000000 dc3734a8 dc4f054c dc4f054c 00000001 00000002 00000000 00000000 Call Trace: [<debb674f>] snd_ctl_elem_read+0xbf/0xd0 [snd] [<debb7f83>] snd_ctl_ioctl+0x863/0xb10 [snd] [<c015ac8e>] find_get_page+0x1e/0x50 [<c015acaa>] find_get_page+0x3a/0x50 [<c015da9f>] filemap_nopage+0x13f/0x410 [<c015dc73>] filemap_nopage+0x313/0x410 [<c016e6c8>] page_add_file_rmap+0x18/0x20 [<c0168c36>] __handle_mm_fault+0x546/0x950 [<c016892d>] __handle_mm_fault+0x23d/0x950 [<c018e04c>] do_ioctl+0x1c/0x70 [<c018e0f2>] vfs_ioctl+0x52/0x2e0 [<c018e3dd>] sys_ioctl+0x5d/0x70 [<c01031f7>] syscall_call+0x7/0xb Code: e1 05 0f bc c2 75 05 b8 ff ff ff ff 01 c8 e9 81 fe ff ff 0f 0b 9c 01 70 de ab de e9 aa fe ff ff 8b 44 24 04 8b 54 24 08 8b 40 5c <8b> 00 8b 40 38 8b 80 94 05 32 00 83 f0 ff 83 e0 3f 89 42 44 31 EIP: [<deabd70b>] snd_cx88_capture_volume_get+0xb/0x30 [cx88_alsa] SS:ESP 0068:ddda9da4 |
Author: | cecil [ Wed Mar 07, 2007 9:05 pm ] |
Post subject: | |
Try disabling the onboard sound then performing the install. Enable the sound after install then run /etc/init.d/alsa. |
Author: | wfdudley [ Wed Mar 07, 2007 9:54 pm ] |
Post subject: | |
I don't understand what this will do for me. Can you explain? The onboard sound is working fine, the driver is crashing when it tries to interface with the CX23880 as far as I can tell. A re-install seems so, umm, Windows-like, and takes a while, including restoring all the recorded shows that I copy over from my old installation, so I resist that if possible. Thanks, Bill |
Author: | tjc [ Wed Mar 07, 2007 10:08 pm ] |
Post subject: | |
See the R5E50 upgrade hints thread. Search for the word "blacklist" there... |
Author: | wfdudley [ Thu Mar 08, 2007 8:06 am ] |
Post subject: | |
OK, fix is in the R5E50 upgrade hints thread: http://mysettopbox.tv/phpBB2/viewtopic.php?t=13108 and the actual fix is: echo "blacklist cx88_alsa" >>/etc/modprobe.d/blacklist to prevent cx88_alsa driver from loading. Thanks, tjc, for your help. Bill |
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