Bug 5270

Summary: modprobe does not handle built-in modules
Product: Busybox Reporter: Michael Tokarev <mjt+busybox>
Component: OtherAssignee: unassigned
Status: RESOLVED FIXED    
Severity: minor CC: busybox-cvs
Priority: P5    
Version: unspecified   
Target Milestone: ---   
Hardware: PC   
OS: Linux   
Host: Target:
Build:
Attachments: modprobe-read-modules-builtin.patch

Description Michael Tokarev 2012-06-02 15:27:10 UTC 
When busybox modprobe is asked to load a module which is built-in to the running kernel, it complains that the module isn't found:

# busybox modprobe unix
modprobe: module unix not found in modules.dep
# echo $?
1
# fgrep unix /lib/modules/$(uname -r)/modules.builtin
kernel/net/unix/unix.ko
# _


Upstream modprobe handles requests for insertion of such modules without returning error (except of --first-time case), just like for regular but already loaded modules.

This is debian bug #652672: http://bugs.debian.org/652672

Thanks,

/mjt
Comment 1 Michael Tokarev 2012-08-12 18:30:06 UTC 
Created attachment 4490 [details]
modprobe-read-modules-builtin.patch

This patch from Ben Hutchings fixes the problem.  It only covers module loading, not unloading -- during unload, it will fail the same way as before.  I'm not sure it is worth to fix this however.
Comment 2 Denys Vlasenko 2017-04-06 09:55:15 UTC 
Applied, thanks