Hi I am trying to run USB modem Siemens A-100-I under Slackware 10.1 (kernel: 2.4.29) with unicorn 0.9.0 drivers, according to README i have to change path to KERNEL SOURCE which i did and after that i did MAKE and MAKE INSTALL and after MAKE INSTALL i get something like Unresolved symbols in ...... and after the reboot when HOTPLUG was detecting new hardware modem activated probably synchronizing and then i got Unable to handle kernel NULL pointer dereference at virtual address...In interrupt handler - not syncing...I am not sure whether these two messages has to do something with each other, however after the 2nd message i get stuck on boot :/
Please help

Good greif - slow down ... (you gotta use sentences and punctuate if you want to be understood! Otherwise it reads like you're out of breath.)

Try seperating things out into lines and groupings so we can see what replaces what. And quote entire error messages ...

OK: so here's what I could get between gasps:
1. You want to compile the unicorn drivers for your modem
2. you've read the "readme" from the tarball
3. you changed the path (what path, where?) to KERNEL SOURCE???

Hopefully you changed it to the directory of your kernel source and didn't just type in "KERNEL_SOURCE"??

4. make worked fine
5. make install had an error "unresolved symbols in ...."

Was this the only error? Were there more errors in there somewhere?

6. Reboot > The modem wouldn't go.

This is not surprising, the driver didn't install.

This sort of thing is usually corrected with a kernel upgrade - lets hope it dosn't come to that.

Lets see - listening closely I see you have slack 10.1 with a 2.4.29 kernel? Would be nice if you listed your distro in your cp (top of the page > "user cp", then old fogeys like me will spot it better.)

Tell us the driver package you got and where from. (Are you sure it's compatable with the 2.4 series kernels?)

Now: take a big breath and start again, slowly
(Remember to punctuate and write in sentences...)

Yes, sorry no more rushing things. I downloaded the drivers here

Then as README says I changed variable pointing to KERNEL to my KERNEL (i.e.: /usr/src/linux-2.4.29).
Then I typed: make and make install according to readme it should do, however in the end of make install it gives me Unresolved symbols at atm..... .o
As far as I know the drivers are compatible with Kernel 2.4.x

Now I tampered a little with kernel and I found out that I did have PPP over ATM compiled in maybe this could be the problem?

Well I recompiled with this option and it works however I forgot to compile in USB support so now recompile again

Hope it will work.

Well done. Yes - it's common with custom kernels that you've missed something out somewhere.

A couple of tips:
1. set the link to the web page not the automatic download: I don't want to download the driver tarball myself, I want to know what you got.
2. when you do make xconfig - after selecting all the modules, you can elect to save the settings to a file. Next time you have to fiddle, you just load your old configuration and make changes from there. As you just found out, it is unlikely you'll get it 100% right first go and it's annoying to have to redo the whole thing for the final 1%.
3. You don't always have to recompile the kernel to get support of the new modules. Provided you only checked/unchecked the "m" option, you can just do make modules ... make modules intall ... and you're away.

You seem confident with kernel compiles - that puts you way ahead of other newbies here. Basically, if you can get a new kernel configured and compiled correctly, then you can do anything

*phew* I hope that now I have all the required modules compiled and kernel is set right. During installing unicorn drivers I didnt get any errors, according to README I loaded up the module i.e. for my USB modem over ATM I used this: modprobe unicorn_usb_atm but It said to me:

This module is not compatible with GPL..will taint your kernel.

The module is loaded up in the memory however modem seems idle no sync no nothing. I do not know what to do whether the kernel will now detect the modem after the reboo with the drivers installed or no, or maybe should I do something else? help!