kern/174236: "kldunload ipdivert" corrupts kernel
Lutz Donnerhacke
lutz at donnerhacke.de
Fri Dec 7 14:50:01 UTC 2012
The following reply was made to PR kern/174236; it has been noted by GNATS.
From: Lutz Donnerhacke <lutz at donnerhacke.de>
To: bug-followup at FreeBSD.org
Cc:
Subject: Re: kern/174236: "kldunload ipdivert" corrupts kernel
Date: Fri, 7 Dec 2012 15:45:00 +0100
Any module which returns an error on unload will cause the problem.
It's not specific to ipdivert.ko or ipfw.ko or anything else.
Relevant code section is:
static int
div_modevent(module_t mod, int type, void *unused)
{
int err = 0;
switch (type) {
[...]
case MOD_QUIESCE:
err = EPERM;
break;
[...]
}
return err;
}
Please note: Forced unload of ipdivert.ko works fine.
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