No, and it's probably just as well because the kernel doesn't keep tables of resources
(ports, IRQ's, memory address ranges)
allocated by loadable modules and therefore couldn't possibly undo whatever the driver
has already done. This is, of course,
assuming that the driver hasn't done any damage to the kernel when it crashed -- which
is another thing the kernel can't guarantee
so it's probably safest to reboot ASAP.
My problem hasn't been with getting the driver out but that -- at least in
2.2.18/RH6.2 -- it also apparently turns kernel logging
off and there's no way to find out what any other drivers or devices might be doing
until the next time the machine is rebooted.
This occurs even when the seg-fault in the loading in what I know -- because I planted
it as part of an experiment -- is a totally
safe occurrence of trying to read from a bad address; there's no possible corruption
of the kernel in this situation but the driver
is stuck and logging is off.
Norman Dresner
Fellow Avionics Support Systems Engineer &(SGI) Advanced Signal Processing Laboratory
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----- Original Message -----
From: Thamm, Russell <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, September 05, 2001 2:28 AM
Subject: [rtl] How do I unload a crashed module?
> Hi,
>
> I apparently have an error in init_module() and I get an exception message:
>
> /usr/bin/rtlinux: line 161: 3155 Segmentation fault ${INSMOD} $modules
>
> when I load the module.
>
> However, after this I cannot unload the module :
>
> Device or resource busy.
>
> Is there any way to recover from this apart from rebooting?
>
> thanks
> Russell Thamm
>
>
>
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