Re: mounted partitions and use
On Tue, Sep 18, 2007 at 10:01:36AM -0300, Alan Menegotto wrote: David Santos escreveu: Hi, im triying to make a lkm that check mounted partitions and if anyone of this partitios hace 90% used send a signal to dmesg (printk...). Someone know any api or library from where i would take this info from the system? Why code this in kernelspace when you have all the tools in userspace to do this? Hear, hear. Nagios is very good at this. It's a pig to configure, but once that's done you can have fancy signals everywhere you want. Erik -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery signature.asc Description: Digital signature
Re: mounted partitions and use
David Santos escreveu: Hi, im triying to make a lkm that check mounted partitions and if anyone of this partitios hace 90% used send a signal to dmesg (printk...). Someone know any api or library from where i would take this info from the system? Thanks. Why code this in kernelspace when you have all the tools in userspace to do this? -- -- Best Regards Alan Menegotto -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
Re: compilng and booting new kernel
On Tuesday 18 September 2007, Onkar wrote: I am new to Linux Kernel. I have complied the kernel ;I have created a initrd.img-2.6.22-6-686 file of size 43MB. I am unable to boot the kernel.Please help me !!. Can anyone please give me some reliable documentation as to how to compile and boot the system with the new kernel ? read the README file and the contents of the Documentation directory, both in the top directory of the kernel source tree. Greg Kroah-Hartman's book is probably what you are after: http://www.kroah.com/lkn/ What errors are you getting? The common mistake is a mis-configured kernel with no support compiled for your root filesystem or the hardware it sits on. If you want answers on how to do these things, you will need to supply some information. The text of the error message is a good place to start alan -- Alan McKinnon alan dot mckinnon at gmail dot com -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
Re: compilng and booting new kernel
On Tue, Sep 18, 2007 at 08:27:21PM +0530, Onkar wrote: I am new to Linux Kernel. I have complied the kernel ;I have created a initrd.img-2.6.22-6-686 file of size 43MB. I am unable to boot the kernel.Please help me !!. Can anyone please give me some reliable documentation as to how to compile and boot the system with the new kernel ? Something like http://kernelnewbies.org/FAQ/KernelCompilation ? And be sure to read the README file in your kernel source directory. Erik -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery signature.asc Description: Digital signature
Re: mounting usb endpoints
On Fri, Sep 14, 2007 at 10:58:11AM +0530, Sendhilraj T wrote: ls /dev |grep usb shows the below one after i insert my usb device usbdev1.1_ep00 usbdev1.1_ep81 usbdev1.4_ep00 usbdev1.4_ep05 usbdev1.4_ep87 usbdev2.1_ep00 usbdev2.1_ep81 ls /dev |grep usb shows the below one after i remove my usb device usbdev1.1_ep00 usbdev1.1_ep81 usbdev2.1_ep00 usbdev2.1_ep81 I would like to know how I can mount these endpoints? You can not mount them, they are device nodes in /dev that are accessed like any other character device. But please realize, for now, they are not hooked up to anything in the kernel, so you can not use them :) Patches gladly accepted to fix this issue... thanks, greg k-h -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
Inserting module into running kernel
Hi all, I have built my kernel from source, installed and booted in it. Now I have written a small module. Can I insert this module into the runningn kernel ? Is there anything which I should take care of while compiling this module, as we have to insert it into the running kernel ? Thanks in advance, Sachin -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
Hi
Hi all, I have built my kernel from source, installed and booted in it. Now I have written a small module. Can I insert this module into the runningn kernel ? Is there anything which I should take care of while compiling this module, as we have to insert it into the running kernel ? Thanks in advance, Sachin -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
Problem regarding copy_to_user
Hi,
I am encountering problem while using copy_to_user in my program pasted
below. Can you tell me where I am going wrong?
My objective here is to pass the values of page_address(bvec-bv_page),
bvec-bv_len, bvec-bv_offset, bio_sectors(bio) to the user application
above. Right now I am just trying it with simple char *buffer. Once this is
successful , I have encapsulated the page_address etc in a structure and
will be using to pass onto the user application.
Need your help asap.
TIA.
My user -space application is
char *message = How r u?
char buffer[100];
int fd = open(/dev/sga,O_RDWR);
if (fd 0)
{
printf(open failed\n);
exit(1);
}
memset(buffer,0,100);
write(fd, message, strlen(message) +1 );
bytes = read(fd,buffer,100);
write(1,buffer,100);
My kernel level function is :-
static int block_dev_random_transfer(struct block_dev *dev, struct bio *bio)
{
int segno;
struct bio_vec *bvec;
sector_t sector = bio-bi_sector;
bio_for_each_segment(bvec,bio,segno)
{
char *buffer = __bio_kmap_atomic(bio,segno,KM_USER0);
printk(KERN_ALERT virtual address = %x ,bvec-bv_len = %u
, bvec-bv_offset = %d , data transferred in sectors = %u and segno = %d\n,
page_address(bvec-bv_page), bvec-bv_len, bvec-bv_offset,
bio_sectors(bio), segno);
block_transfer(dev,sector,bio_cur_sectors(bio),buffer,bio_data_dir(bio) ==
WRITE);
sector += bio_cur_sectors(bio);
__bio_kunmap_atomic(bio,KM_USER0);
bio-bi_private = vmalloc(strlen(buffer) +1);
if (copy_to_user((unsigned char *)bio-bi_private, (unsigned
char *)buffer, strlen(buffer)+1))
{
printk(KERN_ALERT copy_to_user failed\n);
return -EFAULT;
}
}
return 0;
}
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Re:Inserting module into running kernel
just run the command modeprobe module-name 在2007-09-19，Sachin Gaikwad [EMAIL PROTECTED] ： Hi all, I have built my kernel from source, installed and booted in it. Now I have written a small module. Can I insert this module into the runningn kernel ? Is there anything which I should take care of while compiling this module, as we have to insert it into the running kernel ? Thanks in advance, Sachin -- To unsubscribe from this list: send an email with unsubscribe kernelnewbies to [EMAIL PROTECTED] Please read the FAQ at http://kernelnewbies.org/FAQ
