Re: ftrace 'failed to modify' bug when loading reiserfs.ko

[Kyle McMartin]

On Fri, Sep 06, 2013 at 10:24:13AM -0400, Steven Rostedt wrote:
> 
> Is it really safe to load modules that were compiled with different
> options?

Certainly not, offsets can change based on config options.

> Sounds like a failure in the install scripts to me.
> 

Definitely a bug in those scripts, os-prober would need to run before
modules_install, since if $INSTALL_MOD_PATH is the same between config
changes, there's no guarantee the modules are loadable on the running
kernel without a reboot.

--Kyle
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