[asterisk-users] problems inserting dahdi modules using Debian Leni
covici at ccs.covici.com
covici at ccs.covici.com
Wed Jan 5 05:02:58 CST 2011
Shaun Ruffell <sruffell at digium.com> wrote:
> On 1/5/11 12:46 AM, covici at ccs.covici.com wrote:
> > Shaun Ruffell<sruffell at digium.com> wrote:
> >
> >> On 1/4/11 9:26 PM, covici at ccs.covici.com wrote:
> >>>
> >>> Shaun Ruffell<sruffell at digium.com> wrote:
> >>>
> >>>> On 01/04/2011 05:09 PM, covici at ccs.covici.com wrote:
> >>>>> Hi. I have a Debian Leni system with asterisk-1.8. I was trying to
> >>>>> get meetme to work and it depends on dahdi, so I compiled dahdi-trunk
> >>>>> and dahdi-tools-trunk, however, when trying to insert dahdi_dummy, it
> >>>>> complained about symbol crc_ccitt_table, although the module was
> >>>>> actually there in the kernel tree. So, I took the Debian source, and I
> >>>>> had the config and I did make Bzimage, make modules and make
> >>>>> modules_install, but dahdi_dummy still complains about the same symbol,
> >>>>> it says no version for that symbol, so I am confused as to how to
> >>>>> resolve this so I can modprobe dahdi_dummy properly.
> >>>>>
> >>>>> Any ideas would be appreciated.
> >>>>>
> >>>>
> >>>> First off, I recommend using dahdi-linux 2.4.0 *without* compiling
> >>>> dahdi_dummy. A dummy span is no longer needed for DAHDI to provide a
> >>>> timing source to asterisk.
> >>>>
> >>>> But you'll still need crc_ccitt module for dahdi to load, so that
> >>>> doesn't fix the problem as you describe here.
> >>>>
> >>>> If you rebuilt your kernel (which probably wasn't necessary...) you need
> >>>> to reboot into the new kernel, then rebuild DAHDI against your running
> >>>> kernel in order to load. Sounds like you have built DAHDI against one
> >>>> version of the kernel and you're running against another one.
> >>>>
> >>>> Also...make sure you're using "modprobe" and not "insmod" to load the
> >>>> driver...so that crc_ccitt will automatically be loaded as a dependency.
> >>>>
> >>>> For example you can see it automatically loaded here (and how
> >>>> dahdi_dummy isn't needed for timing).
> >>>>
> >>>> ]# lsmod | grep crc_ccitt
> >>>> ]# dahdi_test -c 1
> >>>> Unable to open dahdi interface: No such file or directory
> >>>> ]# modprobe dahdi
> >>>> ]# lsmod | grep crc_ccitt
> >>>> crc_ccitt 10240 1 dahdi
> >>>> ]# dahdi_test -c 5
> >>>> Opened pseudo dahdi interface, measuring accuracy...
> >>>> 99.998% 99.981% 99.990% 99.990% 99.991%
> >>>> --- Results after 5 passes ---
> >>>> Best: 99.998 -- Worst: 99.981 -- Average: 99.990100, Difference: 99.990101
> >>>> ]#
> >>>
> >>> I did rebuild the kernel, it has the same version and the same config as
> >>> the old one and it did build a crc_ccitt module, and I even rebooted the
> >>> system with the new modules, but no joy at all. Igot the same results
> >>> whether I rebuilt the kernel or not, so this is what is confusing to me.
> >>>
> >>
> >> What you get from the following commands:
> >>
> >> ]# lsmod | grep crc_ccitt
> > I had to modprobe it, but I got:
> > crc_ccitt 2080 0
> >
> >
> >> ]# modinfo crc_ccitt
> > filename: /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
> > license: GPL
> > description: CRC-CCITT calculations
> > depends:
> > vermagic: 2.6.26-2-686 SMP mod_unload modversions 686
> >
> >> ]# uname -a
> > Linux eirasterisk 2.6.26-2-686 #3 SMP Tue Jan 4 15:29:02 EST 2011 i686
> > GNU/Linux
> >
> >> ]# cat /proc/kallsyms | grep crc_ccitt
> > 00000000 a crc-ccitt.c [crc_ccitt]
> > f8c6d284 ? __mod_license69 [crc_ccitt]
> > f8c6d290 ? __mod_description68 [crc_ccitt]
> > f8c72250 r __ksymtab_crc_ccitt [crc_ccitt]
> > f8c72268 r __kstrtab_crc_ccitt [crc_ccitt]
> > f8c72260 r __kcrctab_crc_ccitt [crc_ccitt]
> > f8c72258 r __ksymtab_crc_ccitt_table [crc_ccitt]
> > f8c72272 r __kstrtab_crc_ccitt_table [crc_ccitt]
> > f8c72264 r __kcrctab_crc_ccitt_table [crc_ccitt]
> > 00000000 a crc-ccitt.mod.c [crc_ccitt]
> > f8c6d2b4 ? __module_depends [crc_ccitt]
> > f8c6d32c ? ____versions [crc_ccitt]
> > f8c6d2c0 ? __mod_vermagic5 [crc_ccitt]
> > f8c725e0 d __this_module [crc_ccitt]
> > 3771b461 a __crc_crc_ccitt [crc_ccitt]
> > f8c72000 T crc_ccitt [crc_ccitt]
> > 75811312 a __crc_crc_ccitt_table [crc_ccitt]
> > f8c72050 R crc_ccitt_table [crc_ccitt]
> >
> >> ]# modinfo dahdi
> > filename: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko
> > version: SVN-trunk-r9614
> > alias: dahdi_dummy
> > license: GPL v2
> > description: DAHDI Telephony Interface
> > author: Mark Spencer<markster at digium.com>
> > srcversion: A63E42F5ADDDE39777BCC24
> > depends:
> > vermagic: 2.6.26-2-686 SMP mod_unload modversions 686
> > parm: debug:Sets debugging verbosity as a bitfield, to see
> > general debugging set this to 1. To see RBS debugging set this to 32
> > (int)
> > parm: deftaps:int
> > parm: max_pseudo_channels:Maximum number of pseudo
> > channels. (int)
> >
>
> And with the crc_ccitt module loaded you still cannot run "modprobe dahdi"?
>
> If so, what is the output of:
>
> []# cat /lib/modules/`uname -r`/modules.dep | grep dahdi.ko:
/lib/modules/2.6.26-2-686/dahdi/dahdi_transcode.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_echocan_kb1.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/voicebus/dahdi_voicebus.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wct1xxp.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic_ethmf.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wct4xxp/wct4xxp.ko: /lib/modules/2.6.26-2-686/kernel/drivers/base/firmware_class.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/tor2.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_dummy.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/pciradio.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_echocan_sec.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wctdm24xxp/wctdm24xxp.ko: /lib/modules/2.6.26-2-686/dahdi/voicebus/dahdi_voicebus.ko /lib/modules/2.6.26-2-686/kernel/drivers/base/firmware_class.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_vpmadt032_loader.ko: /lib/modules/2.6.26-2-686/dahdi/voicebus/dahdi_voicebus.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi.ko: /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wcb4xxp/wcb4xxp.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/xpp/xpd_pri.ko: /lib/modules/2.6.26-2-686/dahdi/xpp/xpp.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/xpp/xpd_fxs.ko: /lib/modules/2.6.26-2-686/dahdi/xpp/xpp.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/xpp/xpp_usb.ko: /lib/modules/2.6.26-2-686/dahdi/xpp/xpp.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko /lib/modules/2.6.26-2-686/kernel/drivers/usb/core/usbcore.ko
/lib/modules/2.6.26-2-686/dahdi/xpp/xpp.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/xpp/xpd_bri.ko: /lib/modules/2.6.26-2-686/dahdi/xpp/xpp.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/xpp/xpd_fxo.ko: /lib/modules/2.6.26-2-686/dahdi/xpp/xpp.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wcte11xp.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic_loc.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_echocan_sec2.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_echocan_mg2.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wctdm.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_echocan_jpah.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wcte12xp/wcte12xp.ko: /lib/modules/2.6.26-2-686/dahdi/voicebus/dahdi_voicebus.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wctc4xxp/wctc4xxp.ko: /lib/modules/2.6.26-2-686/kernel/drivers/base/firmware_class.ko /lib/modules/2.6.26-2-686/dahdi/dahdi_transcode.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/wcfxo.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
/lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic_eth.ko: /lib/modules/2.6.26-2-686/dahdi/dahdi_dynamic.ko /lib/modules/2.6.26-2-686/dahdi/dahdi.ko /lib/modules/2.6.26-2-686/kernel/lib/crc-ccitt.ko
> and
>
> []# dmesg -c > /dev/null; modprobe dahdi; dmesg; lsmod | grep dahdi
FATAL: Error inserting dahdi (/lib/modules/2.6.26-2-686/dahdi/dahdi.ko):
Unknown symbol in module, or unknown parameter (see dmesg)
[25991.968325] dahdi: no symbol version for crc_ccitt_table
[25991.968330] dahdi: Unknown symbol crc_ccitt_table
--
Your life is like a penny. You're going to lose it. The question is:
How do
you spend it?
John Covici
covici at ccs.covici.com
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