On Mon, Sep 22, 2014 at 11:01:15PM +0200, Jesus Cea via dtrace-discuss wrote:
> I was wondering about patching a kernel function/usermode function.
> Something like:
>
> dtrace -w -n 'syscall::fdsync:entry
> /execname=='imap'/ {return (int)0;}'
>
> to convert "fdsync" for process 'imap' to a NOP during a migration
> process (and knowing that it would be RISKY).
>
> Or similar patching of user functions.
FWIW, I haven't patched user functions, but I have patched user function
inputs to make the function do what I wanted it to do:
http://blahg.josefsipek.net/?p=453
Jeff.
--
A CRAY is the only computer that runs an endless loop in just 4 hours...
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