This: ====== 284.788450] BUG: unable to handle kernel NULL pointer dereference at 00000037 [ 284.788456] IP: [<f9805652>] findHDACodec+0x18/0x43 [agrmodem] [ 284.788508] *pde = 00000000 [ 284.788511] Oops: 0000 [#1] SMP [ 284.788515] last sysfs file: /sys/devices/virtual/tty/ttyAGS3/uevent [ 284.788520] Modules linked in: agrserial agrmodem aes_i586 aes_generic fuse vboxnetadp vboxnetflt vboxdrv sunrpc ipv6 cpufreq_ondemand acpi_cpufreq mperf uinput arc4 ecb snd_hda_codec_realtek iwl3945 iwlcore snd_hda_intel mac80211 snd_hda_codec snd_hwdep cfg80211 snd_seq snd_seq_device snd_pcm snd_timer snd rfkill soundcore uvcvideo tifm_7xx1 tifm_core iTCO_wdt videodev iTCO_vendor_support snd_page_alloc i2c_i801 r8169 mii serio_raw joydev microcode sdhci_pci sdhci firewire_ohci firewire_core mmc_core crc_itu_t yenta_socket usb_storage i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan] ======= is very bad news. The only potential help is to unload as many drivers as possible, and then try reloading: $ sudo modprobe agrmodem $ sudo modprobe agrserial With respect to the preliminary unloading do: $ lsmod start from the top of the list with: $ sudo modprobe -r driverName and work your may down. Do record which modules to unload, so an automation script can be written to do the job next time. Periodically check again with: $ lsmod MarvS On Wed, Apr 6, 2011 at 3:54 PM, M. Lambert <lambertm@xxxxxxxxxxxxxxx> wrote: > Hopefully these two files will be of some help. > > Can't seem to get far enough for a dialtone test even as anything comm > related 'hangs' ... seems initialization fails. > > Noticed a kernel oops during agere module loading in dmesg.txt but I am > nowhere near knowledgeable enough to even understand how to interpret > this. > > Thanks again. > > > On Wed, 2011-04-06 at 09:09 -0400, Marvin Stodolsky wrote: >> ML >> >> Please first try an ordinary modem dialout before fax. >> The 0x11c11040 chipset may not support fax under Linux as the true >> modem port is a /dev/pts/N >> FAXing require SOUND capabilities, and I'm not sure whether psuedo >> ports /dev/pts/N Âhave that sophistication yet. >> >> Some Smartlink chipsets working with the slmodemd helper do support fax. >> For guidance on this FAX usage, get from >> http://linmodems.technion.ac.il/packages/ get faxing.tar.gz. It has >> samples for a modem using port /dev/ttySL0. >> >> But if you need really robust FAX support, best buy a >> Hardware/Controller chipset modem. >> 3COM/US Robotics does produce one. Also there are the Agere/LSI Venus >> chipset modems. >> >> MarvS >> >> >> On Wed, Apr 6, 2011 at 12:17 AM, M. Lambert <lambertm@xxxxxxxxxxxxxxx> wrote: >> > Ok....I ran latest scanmodem and followed instructions. >> > >> > Build (dkms worked great) and install worked but still obviously >> > something not right. >> > >> > Attaching ModemData.txt (from AFTER build/install) as I hope not too >> > difficult to have solution. >> > >> > Happy to supply any additional needed files but really really badly need >> > faxing capability soon. >> > >> > Thank you :) >> > > >