Re: NULL pointer dereference

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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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