why i am getting kernel tainted message

Jan 27, 2008 3 Replies
N

Hi All, I am new to this group as well as for linux operating system .



So far i wrote only one linux driver for pci sdhost.



now i am trying to make stack for that i wrote one bus driver and one host driver .



when i am loading bus module its get loaded properly and i am able to see it in sys/bus folder.but when i am trying to register the host with bus i am getting kernel tainted message .



can any one help me in removing this problem.



i am using linux 2.6.21.fc7



any kind of help will be appreciated.



Regards


Vote
Twitter Facebook LinkedIn
N

do you use the MODULE_LICENSE("GNU") macro? Hi, Thanks for replying.

I am using MODULE_LICENSE("Dual GPL/BSD");

Regards

Vote
Twitter Facebook LinkedIn
S

Which should not produce a tainted Kernel.

Sven

-- "In the land of the brave and the free, we defend our freedom with the GNU GPL" (Richard M. Stallman on

formatting link

/me is giggls@ircnet,

formatting link
on the Web

Vote
Twitter Facebook LinkedIn
N

Hi , Soory for wrong information but i dont know weather it has any impact or not i am using the MODULE_LICENSE("Dual BSD/GPL"); if it is wrong plz tell me what i am supposed to use here.

following is the detailed output of compiling and loading the module

My kernel version is as follows

[root@localhost ~]# uname -r 2.6.21-1.3194.fc7 [root@localhost ~]#

Following is the warning that i am getting wile compile the bus module

[root@localhost sd_bus]# make

make -C /lib/modules/2.6.21-1.3194.fc7/build SUBDIRS=/usr/src/Nayan/ sd_stack/sd_bus modules

make[1]: Entering directory `/usr/src/kernels/2.6.21-1.3194.fc7-i686'

CC [M] /usr/src/Nayan/sd_stack/sd_bus/sdbus.o

/usr/src/Nayan/sd_stack/sd_bus/sdbus.c: In function 'show_sd_card_driver_version':

Why the following warning is coming what is the reason and how to solve that i am not able to understand if you can give me some hint it would be very helpful.

/usr/src/Nayan/sd_stack/sd_bus/sdbus.c:142: warning: ISO C90 forbids mixed declarations and code

Building modules, stage 2.

MODPOST 1 modules

CC /usr/src/Nayan/sd_stack/sd_bus/sdbus.mod.o

LD [M] /usr/src/Nayan/sd_stack/sd_bus/sdbus.ko

make[1]: Leaving directory `/usr/src/kernels/2.6.21-1.3194.fc7-i686'

following is the output of dmesg after loading the sdbus module.

sd_bus_init--->

register_sd_host_device--->

BUS_ID:=SdHost

Name:=SdHost

sdhost.SdHostDevice,&dev_attr_sd_host_version);

// unregister_sd_card_driver(&sd_mem_card);

// device_remove_file(&pSdHost-

[root@localhost sd_host]# make

make -C /lib/modules/2.6.21-1.3194.fc7/build SUBDIRS=/usr/src/Nayan/ sd_stack/sd_host modules

make[1]: Entering directory `/usr/src/kernels/2.6.21-1.3194.fc7-i686'

CC [M] /usr/src/Nayan/sd_stack/sd_host/sdhost.o

/usr/src/Nayan/sd_stack/sd_host/sdhost.c:68: warning: initialization from incompatible pointer type

/usr/src/Nayan/sd_stack/sd_host/sdhost.c:68: warning: 'dev_attr_sd_host_version' defined but not used

Building modules, stage 2.

MODPOST 1 modules

CC /usr/src/Nayan/sd_stack/sd_host/sdhost.mod.o

LD [M] /usr/src/Nayan/sd_stack/sd_host/sdhost.ko

make[1]: Leaving directory `/usr/src/kernels/2.6.21-1.3194.fc7-i686'

[root@localhost sd_host]# [root@localhost sd_host]# [root@localhost sd_host]# cat /proc/sys/kernel/tainted

0

[root@localhost sd_host]# insmod sdhost.ko [root@localhost sd_host]# cat /proc/sys/kernel/tainted

0

[root@localhost sd_host]#

following is the output after loading the sdhost module indivisually

sd_host_init--->

device_create_file returned :3

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required