[lkml]   [2005]   [Jul]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subjectkernel debugging
I am new to kernel hacking and am facing problems in trying to peek at the
runtime values of some kernel variables using gdb.

I am issuing the gdb command as follows:
gdb vmlinux /proc/kcore
This displays the message
/proc/kcore: Operation not permitted
before the (gdb) prompt is displayed.
gdb then prints a value of 0 for any valid variable that is requested.

vmlinux appears to be OK, as gdb correctly identifies undefined variables.
The problem seems to be with /proc/kcore. This file has a permission of 400. I
am using the Red Hat distribution.

Any help is appreciated.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-07-24 15:21    [W:0.026 / U:4.724 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site