Re: NULL pointer dereference

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Bjorn,

DKMS doesn't have any driver source code itself.
It merely copies the provided driver source code into its own
/var/lib/dkms/ space.
Then it does compiling therein, when the System acquires a new kernel.

List,
   Can any of you report a success with agrsm-11c1040 driver source
package under 2.6.31 series Ubuntu kernels?

MarvS

On Tue, Feb 2, 2010 at 2:39 PM, Bjorn Wielens <Uniacke1@xxxxxxxx> wrote:
> Hi Kevin,
> Yes, only the alsa-drivers need be built/installed-these are what agrsm
> interacts with.
>
> This may be the result of DKMS's build environment.
>
> Can you try building the agrsm drivers from source (not DKMS) too?
> The package I use on my system is here:
>
> http://linmodems.technion.ac.il/packages/ltmodem/11c11040/agrsm-2.6.30.tar.bz2
>
> Best,
> Bjorn.
>
> On 02/02/2010 03:35 PM, Kevin Fernandez wrote:
>> Should I recompile only alsa-drivers 1.0.20?
>> I've installed it, reinstalled the module with dkms, and got this
>> while inserting:
>> FATAL: Error inserting agrmodem
>> (/lib/modules/2.6.31-18-generic/updates/dkms/agrmodem.ko): Unknown
>> symbol in module, or unknown parameter (see dmesg
>>
>> and in dmesg:
>>
>> [  206.082405] agrmodem: disagrees about version of symbol snd_cards
>> [  206.082415] agrmodem: Unknown symbol snd_cards
>> [  206.083454] agrmodem: disagrees about version of symbol snd_hda_codec_read
>> [  206.083460] agrmodem: Unknown symbol snd_hda_codec_read
>> [  206.084078] agrmodem: disagrees about version of symbol snd_hda_codec_write
>> [  206.084084] agrmodem: Unknown symbol snd_hda_codec_write
>>
>> Thanks!
>> Kevin
>>
>> 2010/2/2 Bjorn Wielens <Uniacke1@xxxxxxxx>:
>>> Hey,
>>> Definitely looks like an ALSA issue.... The problem seems to be here:
>>>
>>> chip_temp = snd_cards[0]->private_data;  //probe
>>> bus_temp = chip_temp->bus;
>>>
>>> and if I'm not mistaken, the agrsm grabs the snd_cards from ALSA.
>>>
>>> Bjorn.
>>>
>>> On 02/02/2010 02:43 PM, Kevin Fernandez wrote:
>>>> Got this output now, after doing what you asked me:
>>>>
>>>> [ 1762.812880] Loading module Agere Modem Controller driver version
>>>> 2.1.80 (2007-10-01)
>>>> [ 1762.812887] Disabling lock debugging due to kernel taint
>>>> [ 1765.337117] serial8250_register_ports: BaseAddress 0x8004 Irq 20
>>>> [ 1765.337124] ttyAGS3 at I/O 0x8004 (irq = 20) is a AgereModem
>>>> [ 1765.337198] agrserial - ret_val 0, call: lt_modem_ops.init_modem
>>>> [ 1765.337203] Loading module Agere Modem Interface driver version
>>>> 2.1.80.0 (2007-10-01)
>>>> [ 1794.432614] ==> codecType = 0x32
>>>> [ 1794.432654] BUG: unable to handle kernel NULL pointer dereference at 00000168
>>>> [ 1794.432666] IP: [<fc97b88d>] HDAdump+0xd/0x80 [agrmodem]
>>>> [ 1794.432735] *pde = 7eeb3067
>>>> [ 1794.432743] Oops: 0000 [#1] SMP
>>>> [ 1794.432751] last sysfs file: /sys/devices/system/cpu/cpu1/topology/core_id
>>>> [ 1794.432759] Modules linked in: agrserial agrmodem snd_hda_codec
>>>> snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss
>>>> snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer
>>>> snd_seq_device snd soundcore snd_page_alloc wlan_ccmp binfmt_misc
>>>> ppdev vboxnetflt vboxnetadp vboxdrv isofs udf crc_itu_t joydev
>>>> iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4
>>>> iptable_mangle wlan_scan_sta ath_rate_sample iptable_filter ip_tables
>>>> x_tables uvcvideo videodev v4l1_compat pcmcia psmouse serio_raw
>>>> sdhci_pci sdhci led_class yenta_socket rsrc_nonstatic pcmcia_core
>>>> ath_pci wlan ath_hal sbp2 lp parport dm_raid45 xor fbcon tileblit font
>>>> bitblit softcursor i915 drm i2c_algo_bit ohci1394 ieee1394 r8169 mii
>>>> intel_agp agpgart video output
>>>> [ 1794.432918]
>>>> [ 1794.432927] Pid: 25093, comm: wvdialconf Tainted: P
>>>> (2.6.31-18-generic #55-Ubuntu) MSI Notebook VR601
>>>> [ 1794.432935] EIP: 0060:[<fc97b88d>] EFLAGS: 00010296 CPU: 1
>>>> [ 1794.432993] EIP is at HDAdump+0xd/0x80 [agrmodem]
>>>> [ 1794.432999] EAX: 00000000 EBX: fca7f0c4 ECX: 00000000 EDX: 00000383
>>>> [ 1794.433006] ESI: fca7f0c4 EDI: fca7f028 EBP: eda3dcf8 ESP: eda3dcd8
>>>> [ 1794.433012]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
>>>> [ 1794.433019] Process wvdialconf (pid: 25093, ti=eda3c000
>>>> task=edb6bed0 task.ti=eda3c000)
>>>> [ 1794.433024] Stack:
>>>> [ 1794.433028]  fc8a500e fca7f0c4 eda3dd00 fc960380 eda3dcf4 eda3dd6f
>>>> fca7f0c4 fca7f0c4
>>>> [ 1794.433046] <0> eda3dd00 fc97b908 eda3dd20 fc966769 fca895e9
>>>> fca895ea eda3dd20 c05718fc
>>>> [ 1794.433064] <0> fc994dd3 eda3dd6f eda3dd90 fc94f9f1 fca7f0c4
>>>> fc9f6048 00000008 00000001
>>>> [ 1794.433084] Call Trace:
>>>> [ 1794.433144]  [<fc8a500e>] ? x_do_gettimeofday+0xe/0x20 [agrmodem]
>>>> [ 1794.433240]  [<fc960380>] ? lin_timer_ms+0x12/0x36 [agrmodem]
>>>> [ 1794.433314]  [<fc97b908>] ? azlGetResourceInformation+0x8/0x20 [agrmodem]
>>>> [ 1794.433391]  [<fc966769>] ? CAzlIntelInit+0x2d/0x3c4 [agrmodem]
>>>> [ 1794.433417]  [<c05718fc>] ? printk+0x18/0x1c
>>>> [ 1794.433504]  [<fc94f9f1>] ? LXHardwareStart+0x11de/0x13fb [agrmodem]
>>>> [ 1794.433532]  [<c01b7ea5>] ? get_page_from_freelist+0x1c5/0x370
>>>> [ 1794.433542]  [<c0573cba>] ? _spin_lock_irqsave+0x2a/0x40
>>>> [ 1794.433629]  [<fc94b1a8>] ? linux_modem_open+0x45/0x10e [agrmodem]
>>>> [ 1794.433651]  [<c0150bbb>] ? mod_timer+0xcb/0x140
>>>> [ 1794.433710]  [<fc8a52a8>] ? wrap_linux_modem_open+0x8/0x10 [agrmodem]
>>>> [ 1794.433768]  [<fc8a5308>] ? modemPortOpen+0x8/0x20 [agrmodem]
>>>> [ 1794.433780]  [<fcb30fe0>] ? serial8250_startup+0x210/0x380 [agrserial]
>>>> [ 1794.433791]  [<c039ceb6>] ? uart_startup+0x46/0x140
>>>> [ 1794.433799]  [<c039d9f2>] ? uart_open+0x102/0x220
>>>> [ 1794.433809]  [<c0384af3>] ? __tty_open+0x1a3/0x460
>>>> [ 1794.433817]  [<c0384dcf>] ? tty_open+0x1f/0x40
>>>> [ 1794.433828]  [<c01eabfd>] ? chrdev_open+0xcd/0x190
>>>> [ 1794.433837]  [<c01e5bd9>] ? __dentry_open+0xb9/0x230
>>>> [ 1794.433845]  [<c01e5e35>] ? nameidata_to_filp+0x55/0x70
>>>> [ 1794.433855]  [<c01eab30>] ? chrdev_open+0x0/0x190
>>>> [ 1794.433865]  [<c01f3b8a>] ? do_filp_open+0x53a/0x890
>>>> [ 1794.433876]  [<c01e5970>] ? do_sys_open+0x50/0x150
>>>> [ 1794.433885]  [<c01e9425>] ? fput+0x15/0x20
>>>> [ 1794.433893]  [<c01e5847>] ? filp_close+0x47/0x70
>>>> [ 1794.433902]  [<c01e5ad9>] ? sys_open+0x29/0x40
>>>> [ 1794.433911]  [<c01033ac>] ? syscall_call+0x7/0xb
>>>> [ 1794.433916] Code: 89 44 24 08 e8 79 60 bf c3 89 1d 4c e3 9c fc 8b
>>>> 43 04 83 e0 0f eb c4 8d b4 26 00 00 00 00 55 89 e5 56 53 83 ec 18 a1
>>>> e0 d0 50 fc <8b> 98 68 01 00 00 8b 43 28 c7 04 24 1b 6a 99 fc 89 44 24
>>>> 04 e8
>>>> [ 1794.434026] EIP: [<fc97b88d>] HDAdump+0xd/0x80 [agrmodem] SS:ESP
>>>> 0068:eda3dcd8
>>>> [ 1794.434089] CR2: 0000000000000168
>>>> [ 1794.434153] ---[ end trace d4263b1fcdf89f3c ]---
>>>>
>>>>
>>>> I will try to install ALSA from the official site.
>>>> Thanks!
>>>> Kevin
>>>>
>>>> 2010/2/2 Marvin Stodolsky <marvin.stodolsky@xxxxxxxxx>:
>>>>> Kevin,
>>>>>
>>>>> Prepare for Bjorn's suggested edit by:
>>>>> $ dkms status
>>>>> whose output on my System includes:
>>>>> agrsm-11c11040, 2.1.80, 2.6.31-17-generic, i686: installed
>>>>> Then do:
>>>>> $ sudo dkms remove -m agrsm-11c11040 -v 2.1.80 --all
>>>>> This cleans a copy of the code package from the /var/lib/dkms/ folders,
>>>>> wherein DKMS does the actual compiles
>>>>>
>>>>> Next to Bjorn's edit.
>>>>>  Then reinstall with
>>>>> $ sudo ./dodkms
>>>>>
>>>>> MarvS
>>>>>
>>>>> MarvS
>>>>>
>>>>>
>>>>> On Tue, Feb 2, 2010 at 6:46 AM, Bjorn Wielens <Uniacke1@xxxxxxxx> wrote:
>>>>>> Hmm... Your system is an MSI laptop too :)
>>>>>> Anyway, looks like it's hanging trying to locate the modem's HDA codec.
>>>>>>
>>>>>> Can you edit the HDA.c file in the source and uncomment the line
>>>>>> #define HDAdbg (located just before the code starts, after comments.)
>>>>>> Then recompile the drivers (Not sure how to do this with DKMS- I"ve
>>>>>> always used Makefiles, but I think it is along the lines of sudo
>>>>>> dpkg-reconfigure <package name>)
>>>>>>
>>>>>> This will likely provide more kernel output in your syslog, which should
>>>>>> provide extra info on the cause of the crash.
>>>>>>
>>>>>> Another thing worth trying is doing a "stock" driver install of the
>>>>>> alsa-drivers-1.0.20 package from alsa-project.org. Sometimes distros may
>>>>>> apply patches to the source which adversely affect driver function.
>>>>>> The problem with the agrsm drivers is that they are VERY specific. :(
>>>>>>
>>>>>> Best,
>>>>>> Bjorn.
>>>>>>
>>>>>>
>>>>>> On 02/02/2010 12:55 AM, Kevin Fernandez wrote:
>>>>>>> Hello Bjorn,
>>>>>>> I have ALSA 1.0.20, the package i've used right now is
>>>>>>> agrsm-11c11040-2.1.80~20091225.tar.bz2
>>>>>>> I've used dodkms and a kernel i didn't use before (2.6.31-16-generic).
>>>>>>> I've booted into that kernel, ran twice Marv's unloading script (if i
>>>>>>> run it twice it unloads more):
>>>>>>>
>>>>>>> MODULES_FINAL=isofs binfmt_misc joydev psmouse fbcon tileblit font
>>>>>>> bitblit softcursor i915 drm i2c_algo_bit intel_agp agpgart video
>>>>>>> output
>>>>>>>
>>>>>>> then loaded agrmodem and agrserial:
>>>>>>> [  112.493879] * Hello Agere Driver **
>>>>>>> [  112.493950] usbcore: registered new interface driver agr12dec2006
>>>>>>> [  112.970170]   alloc irq_desc for 20 on node -1
>>>>>>> [  112.970174]   alloc kstat_irqs on node -1
>>>>>>> [  112.970182] pci 0000:00:1b.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
>>>>>>> [  115.917518] Loading module Agere Modem Controller driver version
>>>>>>> 2.1.80 (2007-10-01)
>>>>>>> [  115.917525] Disabling lock debugging due to kernel taint
>>>>>>> [  123.858338] serial8250_register_ports: BaseAddress 0x8004 Irq 20
>>>>>>> [  123.858350] ttyAGS3 at I/O 0x8004 (irq = 20) is a AgereModem
>>>>>>> [  123.858455] agrserial - ret_val 0, call: lt_modem_ops.init_modem
>>>>>>> [  123.858463] Loading module Agere Modem Interface driver version
>>>>>>> 2.1.80.0 (2007-10-01)
>>>>>>>
>>>>>>> (is this rev_val 0 line normal?)
>>>>>>> Made a symlink /dev/modem to /dev/ttyAGS3 and /dev/ttySAGS to
>>>>>>> /dev/ttyAGS3 (i think i read somewhere to do this for wvdialconf to
>>>>>>> find the modem).
>>>>>>>
>>>>>>> Ran sudo wvdialconf /etc/wvdial.conf (instead of wvdial this time) and got this:
>>>>>>>
>>>>>>> [  181.005484] ==> codecType = 0x32
>>>>>>> [  181.005512] BUG: unable to handle kernel NULL pointer dereference at 00000168
>>>>>>> [  181.005523] IP: [<f8f68818>] azlGetResourceInformation+0x8/0x60 [agrmodem]
>>>>>>> [  181.005592] *pde = 7f322067
>>>>>>> [  181.005599] Oops: 0000 [#1] SMP
>>>>>>> [  181.005607] last sysfs file: /sys/devices/system/cpu/cpu1/topology/core_id
>>>>>>> [  181.005614] Modules linked in: agrserial agrmodem snd_hda_codec
>>>>>>> snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss
>>>>>>> snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer
>>>>>>> snd_seq_device snd soundcore snd_page_alloc isofs binfmt_misc joydev
>>>>>>> psmouse fbcon tileblit font bitblit softcursor i915 drm i2c_algo_bit
>>>>>>> intel_agp agpgart video output [last unloaded: wlan]
>>>>>>> [  181.005692]
>>>>>>> [  181.005701] Pid: 5655, comm: wvdialconf Tainted: P
>>>>>>> (2.6.31-16-generic #53-Ubuntu) MSI Notebook VR601
>>>>>>> [  181.005708] EIP: 0060:[<f8f68818>] EFLAGS: 00010286 CPU: 0
>>>>>>> [  181.005766] EIP is at azlGetResourceInformation+0x8/0x60 [agrmodem]
>>>>>>> [  181.005773] EAX: 00000000 EBX: f86af0c4 ECX: 00000000 EDX: 0000020b
>>>>>>> [  181.005779] ESI: f86af0c4 EDI: f86af028 EBP: f02efd00 ESP: f02efd00
>>>>>>> [  181.005785]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
>>>>>>> [  181.005792] Process wvdialconf (pid: 5655, ti=f02ee000
>>>>>>> task=f02a3240 task.ti=f02ee000)
>>>>>>> [  181.005797] Stack:
>>>>>>> [  181.005801]  f02efd20 f8f53769 f86b95e9 f86b95ea f02efd20 c056ea7c
>>>>>>> f8f81c93 f02efd6f
>>>>>>> [  181.005818] <0> f02efd90 f8f3c9f1 f86af0c4 f8521048 00000008
>>>>>>> 00000001 f86af39c 00000004
>>>>>>> [  181.005837] <0> c162c2a0 00000000 c0784e40 00000000 c01b7e2d
>>>>>>> 00000001 00000041 ffffffff
>>>>>>> [  181.005857] Call Trace:
>>>>>>> [  181.005934]  [<f8f53769>] ? CAzlIntelInit+0x2d/0x3c4 [agrmodem]
>>>>>>> [  181.005952]  [<c056ea7c>] ? printk+0x18/0x1c
>>>>>>> [  181.006038]  [<f8f3c9f1>] ? LXHardwareStart+0x11de/0x13fb [agrmodem]
>>>>>>> [  181.006057]  [<c01b7e2d>] ? get_page_from_freelist+0x1bd/0x360
>>>>>>> [  181.006066]  [<c0570e3a>] ? _spin_lock_irqsave+0x2a/0x40
>>>>>>> [  181.006153]  [<f8f381a8>] ? linux_modem_open+0x45/0x10e [agrmodem]
>>>>>>> [  181.006167]  [<c0150c2b>] ? mod_timer+0xcb/0x140
>>>>>>> [  181.006226]  [<f8e922a8>] ? wrap_linux_modem_open+0x8/0x10 [agrmodem]
>>>>>>> [  181.006284]  [<f8e92308>] ? modemPortOpen+0x8/0x20 [agrmodem]
>>>>>>> [  181.006296]  [<f857cfe0>] ? serial8250_startup+0x210/0x380 [agrserial]
>>>>>>> [  181.006308]  [<c0399376>] ? uart_startup+0x46/0x140
>>>>>>> [  181.006317]  [<c0399eb2>] ? uart_open+0x102/0x220
>>>>>>> [  181.006326]  [<c0380f53>] ? __tty_open+0x1a3/0x460
>>>>>>> [  181.006335]  [<c038122f>] ? tty_open+0x1f/0x40
>>>>>>> [  181.006344]  [<c01eaa5d>] ? chrdev_open+0xcd/0x190
>>>>>>> [  181.006353]  [<c01e5a39>] ? __dentry_open+0xb9/0x230
>>>>>>> [  181.006361]  [<c01e5c95>] ? nameidata_to_filp+0x55/0x70
>>>>>>> [  181.006370]  [<c01ea990>] ? chrdev_open+0x0/0x190
>>>>>>> [  181.006379]  [<c01f39ea>] ? do_filp_open+0x53a/0x890
>>>>>>> [  181.006389]  [<c01e57d0>] ? do_sys_open+0x50/0x150
>>>>>>> [  181.006397]  [<c01e9285>] ? fput+0x15/0x20
>>>>>>> [  181.006405]  [<c01e56a7>] ? filp_close+0x47/0x70
>>>>>>> [  181.006412]  [<c01e5939>] ? sys_open+0x29/0x40
>>>>>>> [  181.006421]  [<c010336c>] ? syscall_call+0x7/0xb
>>>>>>> [  181.006426] Code: 10 75 e8 b8 fd ff ff ff 5d c3 90 31 c0 5d c3 8d
>>>>>>> 74 26 00 89 15 ac b0 fb f8 8b 42 04 5d 83 e0 0f c3 66 90 a1 e0 50 63
>>>>>>> fd 55 89 e5 <8b> 80 68 01 00 00 8b 48 74 31 c0 90 8d 74 26 00 8b 54 81
>>>>>>> 34 85
>>>>>>> [  181.006535] EIP: [<f8f68818>] azlGetResourceInformation+0x8/0x60
>>>>>>> [agrmodem] SS:ESP 0068:f02efd00
>>>>>>> [  181.006598] CR2: 0000000000000168
>>>>>>> [  181.006606] ---[ end trace c5d7e7cd560c2388 ]---
>>>>>>>
>>>>>>>
>>>>>>> After this i tried to boot in rescue mode (only with terminal) to have
>>>>>>> even less modules loaded, ran unloading twice, tried wvdial, same..
>>>>>>> Everytime i have this, the device is busy after and i have to reboot.
>>>>>>>
>>>>>>> Thanks for your time!
>>>>>>> Kevin
>>>>>>>
>>>>>>> 2010/2/1 Bjorn Wielens <Uniacke1@xxxxxxxx>:
>>>>>>>> Marv, Kevin:
>>>>>>>> Just a heads up- These crashes/segfaults almost ALWAYS caused by a
>>>>>>>> mismatch between the agrsm driver version and the ALSA version on your
>>>>>>>> computer.
>>>>>>>>
>>>>>>>> Which driver package are you using, and what is the output of
>>>>>>>> 'cat /proc/asound/version'?
>>>>>>>>
>>>>>>>> The ALSA version for my most recently prepared tarball and its
>>>>>>>> derivatives is 1.0.20. Any newer is not yet supported.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Bjorn.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 02/01/2010 08:37 PM, Marvin Stodolsky wrote:
>>>>>>>>> Kevin,
>>>>>>>>>
>>>>>>>>> You are using the correct drivers.
>>>>>>>>> Try detaching external devices as much as possible before bootup, and
>>>>>>>>> shutting down non-essential programs  before using the modem.  You
>>>>>>>>> could check whether the problems begin during a simple activation
>>>>>>>>> with:
>>>>>>>>> $ sudo wvdialconf  wvtest
>>>>>>>>> or only during an actual dialout.
>>>>>>>>>
>>>>>>>>> I'll also send you an "unloading" script, which tries to unload
>>>>>>>>> non-essential modules.
>>>>>>>>> Also try using it before modem usage as:
>>>>>>>>> $ sudo ./unloading
>>>>>>>>>
>>>>>>>>> Sadly we don't have debugging capability for these drivers, because
>>>>>>>>> there is a closed source component.
>>>>>>>>>
>>>>>>>>> MarvS
>>>>>>>>>
>>>>>>>>> On Mon, Feb 1, 2010 at 11:59 AM, Kevin Fernandez <siegfri3d@xxxxxxxxx> wrote:
>>>>>>>>>> Sorry this was an old modemdata, i removed slmodem a long time ago.. I
>>>>>>>>>> attached a new modemdata.txt.
>>>>>>>>>> On windows it says:
>>>>>>>>>> Agere Systems HDA modem
>>>>>>>>>> Slot 1 (internal High Definition Audio bus)
>>>>>>>>>>
>>>>>>>>>> device ID HDAUDIO\FUNC_02&VEN_11C1&DEV_1040&SUBSYS_11C10001&REV_1002
>>>>>>>>>>
>>>>>>>>>> Thanks for the help!
>>>>>>>>>> Kevin
>>>>>>>>>>
>>>>>>>>>> 2010/2/1 Marvin Stodolsky <marvin.stodolsky@xxxxxxxxx>:
>>>>>>>>>>> Kevin,
>>>>>>>>>>>
>>>>>>>>>>> Under install the hsfmodem software.  It is for Conexant modem chips
>>>>>>>>>>> and may be interferring.
>>>>>>>>>>> Then rerun scanModem
>>>>>>>>>>> As described in SoftModem.txt, please get diagnostic info under Microsoft too.
>>>>>>>>>>>
>>>>>>>>>>> MarvS
>>>>>>>>>>> scanModem maintainer
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Mon, Feb 1, 2010 at 12:57 AM, Kevin Fernandez <siegfri3d@xxxxxxxxx> wrote:
>>>>>>>>>>>> Hello there,
>>>>>>>>>>>> I'm trying to get my modem working for some days, still no luck.
>>>>>>>>>>>> I've attached the modemdata.
>>>>>>>>>>>> I compile the driver (agrsm-11c11040-2.1.80~20091225), i install it
>>>>>>>>>>>> and load the modules, then i get:
>>>>>>>>>>>> [  677.293574] * Hello Agere Driver **
>>>>>>>>>>>> [  677.293623] usbcore: registered new interface driver agr12dec2006
>>>>>>>>>>>> [  680.664348] Loading module Agere Modem Controller driver version
>>>>>>>>>>>> 2.1.80 (2007-10-01)
>>>>>>>>>>>> [  680.664354] Disabling lock debugging due to kernel taint
>>>>>>>>>>>> [  683.898153] serial8250_register_ports: BaseAddress 0x8004 Irq 20
>>>>>>>>>>>> [  683.898160] ttyAGS3 at I/O 0x8004 (irq = 20) is a AgereModem
>>>>>>>>>>>> [  683.898229] agrserial - ret_val 0, call: lt_modem_ops.init_modem
>>>>>>>>>>>> [  683.898234] Loading module Agere Modem Interface driver version
>>>>>>>>>>>> 2.1.80.0 (2007-10-01)
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> then i fire up wvdial to use the device and i get nothing, but i have
>>>>>>>>>>>> this in dmesg:
>>>>>>>>>>>>
>>>>>>>>>>>> [  694.818705] ==> codecType = 0x32
>>>>>>>>>>>> [  694.848151] BUG: unable to handle kernel NULL pointer dereference at 00000060
>>>>>>>>>>>> [  694.848167] IP: [<f986a498>] ResumeCallBack+0x18/0x34 [agrmodem]
>>>>>>>>>>>> [  694.848264] *pde = 7e584067
>>>>>>>>>>>> [  694.848271] Oops: 0000 [#1] SMP
>>>>>>>>>>>> [  694.848280] last sysfs file: /sys/devices/system/cpu/cpu1/topology/core_id
>>>>>>>>>>>> [  694.848287] Modules linked in: agrserial agrmodem isofs udf
>>>>>>>>>>>> crc_itu_t binfmt_misc ppdev vboxnetflt vboxnetadp vboxdrv joydev
>>>>>>>>>>>> snd_hda_codec_realtek wlan_scan_sta ath_rate_sample snd_hda_intel
>>>>>>>>>>>> pcmcia snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm
>>>>>>>>>>>> snd_seq_dummy uvcvideo videodev v4l1_compat sdhci_pci sdhci led_class
>>>>>>>>>>>> yenta_socket rsrc_nonstatic pcmcia_core psmouse serio_raw iptable_nat
>>>>>>>>>>>> nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle
>>>>>>>>>>>> iptable_filter ip_tables x_tables ath_pci wlan ath_hal snd_seq_oss
>>>>>>>>>>>> snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer
>>>>>>>>>>>> snd_seq_device snd soundcore snd_page_alloc sbp2 lp parport dm_raid45
>>>>>>>>>>>> xor fbcon tileblit font bitblit softcursor i915 drm i2c_algo_bit
>>>>>>>>>>>> ohci1394 ieee1394 r8169 mii intel_agp video agpgart output
>>>>>>>>>>>> [  694.848449]
>>>>>>>>>>>> [  694.848457] Pid: 7339, comm: wvdial Tainted: P
>>>>>>>>>>>> (2.6.31-18-generic #55-Ubuntu) MSI Notebook VR601
>>>>>>>>>>>> [  694.848465] EIP: 0060:[<f986a498>] EFLAGS: 00010282 CPU: 0
>>>>>>>>>>>> [  694.848550] EIP is at ResumeCallBack+0x18/0x34 [agrmodem]
>>>>>>>>>>>> [  694.848557] EAX: f02c0800 EBX: 00000000 ECX: 01828000 EDX: f986a480
>>>>>>>>>>>> [  694.848563] ESI: e650dc9c EDI: f02c0800 EBP: e650dc58 ESP: e650dc40
>>>>>>>>>>>> [  694.848569]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
>>>>>>>>>>>> [  694.848577] Process wvdial (pid: 7339, ti=e650c000 task=e6e9e480
>>>>>>>>>>>> task.ti=e650c000)
>>>>>>>>>>>> [  694.848582] Stack:
>>>>>>>>>>>> [  694.848586]  00000000 00000003 0002a22c f02c0800 e650dc9c f02c0800
>>>>>>>>>>>> e650dc64 f8bdeca2
>>>>>>>>>>>> [  694.848604] <0> f02c0800 e650dc70 f8bdcd84 efcfa200 e650dc94
>>>>>>>>>>>> f8bdce20 100f0000 0100cc9f
>>>>>>>>>>>> [  694.848622] <0> e650dc9c efcfa274 000f0000 e650dc9c f9947028
>>>>>>>>>>>> e650dca8 f8bdde41 ffffffff
>>>>>>>>>>>> [  694.848643] Call Trace:
>>>>>>>>>>>> [  694.848668]  [<f8bdeca2>] ? hda_call_codec_resume+0x42/0x70 [snd_hda_codec]
>>>>>>>>>>>> [  694.848691]  [<f8bdcd84>] ? snd_hda_power_up+0x34/0x60 [snd_hda_codec]
>>>>>>>>>>>> [  694.848711]  [<f8bdce20>] ? codec_exec_verb+0x70/0xc0 [snd_hda_codec]
>>>>>>>>>>>> [  694.848741]  [<f8bdde41>] ? snd_hda_codec_read+0x31/0x40 [snd_hda_codec]
>>>>>>>>>>>> [  694.848801]  [<f989a999>] ? LnxTransferCodecVerbs+0x49/0x60 [agrmodem]
>>>>>>>>>>>> [  694.848890]  [<f9884b1b>] ? VerbTransfer+0x2f/0x3c [agrmodem]
>>>>>>>>>>>> [  694.848976]  [<f9884b73>] ? GetAzCodecID+0x4b/0x63 [agrmodem]
>>>>>>>>>>>> [  694.849063]  [<f9885788>] ? CAzlIntelInit+0x4c/0x3c4 [agrmodem]
>>>>>>>>>>>> [  694.849085]  [<c05718fc>] ? printk+0x18/0x1c
>>>>>>>>>>>> [  694.849173]  [<f986e9f1>] ? LXHardwareStart+0x11de/0x13fb [agrmodem]
>>>>>>>>>>>> [  694.849199]  [<c01b7ea5>] ? get_page_from_freelist+0x1c5/0x370
>>>>>>>>>>>> [  694.849209]  [<c0573cba>] ? _spin_lock_irqsave+0x2a/0x40
>>>>>>>>>>>> [  694.849295]  [<f986a1a8>] ? linux_modem_open+0x45/0x10e [agrmodem]
>>>>>>>>>>>> [  694.849316]  [<c0150bbb>] ? mod_timer+0xcb/0x140
>>>>>>>>>>>> [  694.849376]  [<f97c42a8>] ? wrap_linux_modem_open+0x8/0x10 [agrmodem]
>>>>>>>>>>>> [  694.849435]  [<f97c4308>] ? modemPortOpen+0x8/0x20 [agrmodem]
>>>>>>>>>>>> [  694.849447]  [<f818cfe0>] ? serial8250_startup+0x210/0x380 [agrserial]
>>>>>>>>>>>> [  694.849457]  [<c039ceb6>] ? uart_startup+0x46/0x140
>>>>>>>>>>>> [  694.849465]  [<c039d9f2>] ? uart_open+0x102/0x220
>>>>>>>>>>>> [  694.849475]  [<c0384af3>] ? __tty_open+0x1a3/0x460
>>>>>>>>>>>> [  694.849483]  [<c0384dcf>] ? tty_open+0x1f/0x40
>>>>>>>>>>>> [  694.849493]  [<c01eabfd>] ? chrdev_open+0xcd/0x190
>>>>>>>>>>>> [  694.849502]  [<c01e5bd9>] ? __dentry_open+0xb9/0x230
>>>>>>>>>>>> [  694.849511]  [<c01e5e35>] ? nameidata_to_filp+0x55/0x70
>>>>>>>>>>>> [  694.849520]  [<c01eab30>] ? chrdev_open+0x0/0x190
>>>>>>>>>>>> [  694.849530]  [<c01f3b8a>] ? do_filp_open+0x53a/0x890
>>>>>>>>>>>> [  694.849540]  [<c01e5970>] ? do_sys_open+0x50/0x150
>>>>>>>>>>>> [  694.849548]  [<c01e9425>] ? fput+0x15/0x20
>>>>>>>>>>>> [  694.849556]  [<c01e5847>] ? filp_close+0x47/0x70
>>>>>>>>>>>> [  694.849564]  [<c01e5ad9>] ? sys_open+0x29/0x40
>>>>>>>>>>>> [  694.849573]  [<c01033ac>] ? syscall_call+0x7/0xb
>>>>>>>>>>>> [  694.849578] Code: 89 d8 83 c4 2c 5b 5e 5f 5d c3 90 90 90 90 90 90
>>>>>>>>>>>> 90 90 90 55 89 e5 53 83 ec 14 8b 1d e8 e3 8e f9 c7 44 24 04 03 00 00
>>>>>>>>>>>> 00 89 1c 24 <ff> 53 60 c7 44 24 04 00 00 00 00 89 1c 24 ff 53 60 b8 00
>>>>>>>>>>>> 00 00
>>>>>>>>>>>> [  694.849687] EIP: [<f986a498>] ResumeCallBack+0x18/0x34 [agrmodem]
>>>>>>>>>>>> SS:ESP 0068:e650dc40
>>>>>>>>>>>> [  694.849777] CR2: 0000000000000060
>>>>>>>>>>>> [  694.849784] ---[ end trace e662cdc749dd82f6 ]---
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> As you can see i'm running ubuntu karmic, kernel 2.6.31-18-generic .
>>>>>>>>>>>> Sometimes wvdial even freezes my computer.
>>>>>>>>>>>> Any help is appreciated!
>>>>>>>>>>>> Thanks
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>
>
>


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