How to debug (network file system) nfs module in user mode linux

Asked May 19 '14 at 10:12

Active May 19 '14 at 10:12

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I have setup the user mode linux kernel with the help of one video tutorial in youtube i.e.http://www.youtube.com/watch?v=I6n9id4qnN4.

Now i am able to debug kernel function sys_clone but my actual requirement is to debug nfs module in kernel.

How to setup nfs in user mode linux and debug the nfs module.

when from the symbol table I give as breakpoint one of the functions from nfs module, the break point is never reached.

Thanks in Advance.

asked May 19 '14 at 10:12

Nani

add break points to nfs_read/write function and see – Sasi V May 19 '14 at 18:24
I tried to add break points to nfs functions but the nfs commands are not working to configure nfs and to perform operations on nfs . – Nani May 20 '14 at 05:38
Did you enable NFS config in kernel? – Sasi V May 20 '14 at 06:51
Yes i enabled nfs config.Can you please explain how to use nfs and debug it in UML. – Nani May 20 '14 at 06:58
http://www.cs.uoi.gr/~gkappes/files/tutorials/root_nfs.pdf – Sasi V May 20 '14 at 07:59
Can we SSH to running UML kernel? – Nani May 21 '14 at 09:54
You need to create interface to do ssh. Search for networking on UML – Sasi V May 21 '14 at 13:24

0 Answers0