cvs commit: src/sys/sys mbuf.h src/sys/kern uipc_mbuf.c
andre at freebsd.org
Mon Aug 29 20:18:47 GMT 2005
Andre Oppermann wrote:
> andre 2005-08-29 19:58:56 UTC
> FreeBSD src repository
> Modified files:
> sys/sys mbuf.h
> sys/kern uipc_mbuf.c
> Add m_sanity(struct mbuf *m, int sanitize) to do some heavy sanity
> checking on mbuf's and mbuf chains. Set sanitize to 1 to garble
> illegal things and have them blow up later when used/accessed.
> m_sanity()'s main purpose is for KASSERT()'s and debugging of non-
> kosher mbuf manipulation (of which we have a number of).
A kernel with m_santiy() as the first thing in ip_output() doesn't
survive the first outgoing TCP connection.
There are a lot of strange and sometimes right out incorrect mbuf
(ab)uses in the kernel.
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