Problem with inserting kernel module

Ganeriwal Saurabh saurabh at ee.ucla.edu
Tue Jul 26 15:22:33 UTC 2005


Hi Paul,

Sorry for not making this clear but I am already doing exactly what you
mentioned in the e-mail.

I install the module in the /extra directory and do "depmod -a" before
running the "modprobe" command. Basically, that is as a part of my
Makefile.

To make things clear, this module is a kernel driver. I am able to see
/var/X and dev/X being generated after the install step.

This module requires GNU MP support, the existence of which I have
already verified in /usr/lib and /usr/include.

But I had a peek at the /var/log/messages and the problem seems to be with
this configuration getting linked. Following is the snapshot from it:

Jul 18 06:57:40 sld9 kernel: Modules linked in: tpm_emulator(U) nfs lockd
parport_pc lp parport autofs4 rfcomm l2cap bluetooth sunrpc dm_mod video
button battery ac md5 ipv6 joydev uhci_hcd ehci_hcd hw_random i2c_i801
i2c_core snd_intel8x0 snd_ac97_codec snd_seq_dummy snd_seq_oss
snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss
snd_pcm snd_timer snd soundcore snd_page_alloc tg3 floppy ext3 jbd
ata_piix libata sd_mod scsi_mod
Jul 18 06:57:40 sld9 kernel:  [<f8b28a98>] __gmpn_mul_basecase+0xd0/0x130
[tpm_emulator]
Jul 18 06:57:40 sld9 kernel:  [<f8b26e34>] __gmpn_kara_mul_n+0x384/0x70e
[tpm_emulator]
Jul 18 06:57:40 sld9 kernel:  [<f8b26fce>] __gmpn_kara_mul_n+0x51e/0x70e
[tpm_emulator]
Jul 18 06:57:40 sld9 kernel:  [<f8b28965>] __gmpn_mul_n+0x9e/0x101
[tpm_emulator]

I am also in confusion with the output of the ld command, which I
mentioned earlier, that is even giving me conflicts with basic kernel
utilities such as printk and kfree.

Please let me know if anything is unclear. i will be glad to provide you
more information.

bye,
saurabh

>
> Try installing your module into a directory:
>
> /lib/modules/`uname -r`/extra
>
> (you may need to create this directory)
>
> Then do:
>
> # depmod -a
>
> Then try your modprobe
>
> Paul.
>
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