Messages in this thread | | | Subject | Re: export of sys_call_table | From | Andy Pfiffer <> | Date | 03 Oct 2002 17:32:00 -0700 |
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On Thu, 2002-10-03 at 16:10, Michal Jaegermann wrote: > On Thu, Oct 03, 2002 at 11:02:40PM +0100, Alan Cox wrote: > > On Thu, 2002-10-03 at 22:39, Brian F. G. Bidulock wrote: > > > > > Until now, loadable modules have been able to just overwrite > ... > > > > Not actually safely implementable. The right way to do this is a > > relevant 2.5 question.
> Hm, IIRC bproc stuff (Beowulf support) also relies on this ability. > Or at least "kmonte" trick to load and switch to a new kernel.
The last kmonte that I worked with would preserve, then overwrite, sys_call_table[__NT_reboot] with a pointer to it's version of reboot() when the kmonte module was loaded.
If asked to unload, the original version of reboot() was restored prior to being unloaded.
Andy
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