Red Hat Bugzilla – Bug 123106
/proc/kallsyms is missing (kernel 2.6.5-1.358)
Last modified: 2015-01-04 17:05:53 EST
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Description of problem:
I just figured out that the /proc/ksyms file is no more (compiling a
module) and that the (acc. to pages found by google) file's now called
/proc/kallsysm. The problem is that there is no such file on my system.
Steps to Reproduce:
* compile a module, or
* ls /proc/kallsyms
eh what is proc/kallsyms needed for ???
From http://www.desktop-linux.net/vmware.htm I got this:
"Replace all occurrences of /proc/ksyms with /proc/kallsyms in
So, I assumed that it was needed.
Arjan, I encountered the same problem with 2.6.5-1.358. I checked
with 2.6.8-1.521 - same story - /proc/kallsyms not there!
Apparently, noone calls kallsyms_init() (kernel/kallsyms.c), so
to the end of kernel/kallsyms.c does the trick.
again.. what needs it ?
In Fedora Core 2 /proc/kallsyms missing - this file lists all kernel
symbols. It might be usefull when working on kernel module or, as
original poster did, installing Fedora Core 2 on VMWare virtual machine.
As I found, problem relies in kernel. All Fedora Core 2 kernels
released so far, has this problem. Finally, fix I proposed based on
Linuses kernel 22.214.171.124 (the latest one so far).
This bug is a real problem for me. I need to have /proc/kallsyms. It
serves two purposes:
1) If a driver can't load because it complains about an unknown
symbol, I can grep kallsyms to see if the symbol is really defined.
2) Our driver compiles with several different 2.4 and 2.6 versions. I
use kallsyms to determine which symbols are publically available, and
if a certain symbol is not found, then a warning message is displayed.
mass update for old bugs:
Is this still a problem with the 2.6.9 based update kernel ?
Yes, it is.
current kernels should have this fixed.