(feisty, alsa-driver) NULL pointer in snd_hda_codec
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-source-2.6.20 (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: linux-image-2.6-386
Hello,
I am trying out Herd 2 Feisty Live CD, NULL pointer reference always happens at boot in snd_hda_codec module. There is no sound after boot.
[ 90.088000] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 90.088000] printing eip:
[ 90.088000] f8b91093
[ 90.088000] *pde = 00000000
[ 90.088000] Oops: 0002 [#1]
[ 90.088000] SMP
[ 90.088000] Modules linked in: snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi joydev usblp snd_rawmidi snd_seq_midi_event ipw3945 hci_usb af_packet snd_seq bluetooth snd_timer ieee80211 ieee80211_crypt snd_seq_device snd iTCO_wdt tpm_infineon tpm shpchp psmouse serio_raw intel_agp agpgart soundcore iTCO_vendor_support tpm_bios pci_hotplug snd_page_alloc pcspkr evdev tsdev ipv6 squashfs loop unionfs nls_cp437 isofs usbhid hid sg sr_mod cdrom sd_mod ata_piix ata_generic libata scsi_mod r8169 uhci_hcd generic ehci_hcd usbcore thermal processor fan fbcon tileblit font bitblit softcursor vesafb capability commoncap
[ 90.092000] CPU: 1
[ 90.092000] EIP: 0060:[<f8b91093>] Not tainted VLI
[ 90.092000] EFLAGS: 00010202 (2.6.20-5-generic #2)
[ 90.092000] EIP is at get_input_
[ 90.092000] eax: 00000007 ebx: f6742640 ecx: 00000001 edx: 00000000
[ 90.092000] esi: f6742640 edi: 00000001 ebp: 00000000 esp: f67d3cf8
[ 90.092000] ds: 007b es: 007b ss: 0068
[ 90.092000] Process modprobe (pid: 4900, ti=f67d2000 task=f6790560 task.ti=f67d2000)
[ 90.092000] Stack: f6742664 f8b91e77 f8b9c4a8 f8b9c479 c18eaf70 00000000 00000000 f621a580
[ 90.092000] f6762800 f6762a24 00000000 f67d3d40 f663b740 f663bd40 00020000 c01e8a0a
[ 90.092000] 00000001 c01a92fa 0000031b 00008000 f663b740 f666eecc c01a97bf 00000001
[ 90.092000] Call Trace:
[ 90.096000] [<f8b91e77>] build_generic_
[ 90.096000] [<c01e8a0a>] idr_get_
[ 90.096000] [<c01a92fa>] proc_register+
[ 90.096000] [<c01a97bf>] create_
[ 90.096000] [<f8a23d18>] snd_create_
[ 90.096000] [<f8a23db1>] snd_info_
[ 90.096000] [<f8b42337>] snd_pcm_
[ 90.096000] [<f8b42420>] snd_pcm_
[ 90.096000] [<f8a4cd6c>] create_
[ 90.096000] [<f8b90b83>] snd_hda_
[ 90.096000] [<f8a4d5fd>] azx_probe+
[ 90.096000] [<f8a4c730>] azx_send_
[ 90.096000] [<f8a4c830>] azx_get_
[ 90.096000] [<c01f6943>] pci_match_
[ 90.096000] [<f8a4d000>] azx_probe+0x0/0x7c0 [snd_hda_intel]
[ 90.096000] [<c01f6a66>] pci_device_
[ 90.096000] [<c0251c04>] really_
[ 90.096000] [<c0251d39>] driver_
[ 90.096000] [<c0251eee>] __driver_
[ 90.096000] [<c025110b>] bus_for_
[ 90.096000] [<c0251ab6>] driver_
[ 90.096000] [<c0251e50>] __driver_
[ 90.096000] [<c025149b>] bus_add_
[ 90.096000] [<c01f6c34>] __pci_register_
[ 90.096000] [<c01416ed>] sys_init_
[ 90.096000] [<c0107acd>] sys_mmap2+0xcd/0xd0
[ 90.096000] [<c0103116>] sysenter_
[ 90.096000] =======
[ 90.096000] Code: b9 f8 c3 83 e1 0f b8 1d c4 b9 f8 83 f9 02 74 c2 5b b8 27 c4 b9 f8 c3 83 e1 0f b8 0a c4 b9 f8 83 f9 02 74 ae 5b b8 15 c4 b9 f8 c3 <83> 0a 04 eb bf 90 8d b4 26 00 00 00 00 8b 48 4c 8b 11 85 d2 0f
[ 90.100000] EIP: [<f8b91093>] get_input_
If you need any other information, I will be glad to provide.
Thanks,
Boris Dušek
Resolved in herd3, additionally microphone now works, unlike in Edgy and Dapper.