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Date: Thu, 16 May 2013 21:19:09 +0200
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Subject: Re: svn commit: r250700 - in head/sys: conf net netinet6 sys
From: Ed Schouten <ed@80386.nl>
To: Julian Elischer <julian@freebsd.org>
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Hey Julian,

2013/5/16 Julian Elischer <julian@freebsd.org>:
>  #define M_SETFIB(_m, _fib) do {                                                \
> -       _m->m_flags &= ~M_FIB;                                          \
> -       _m->m_flags |= (((_fib) << M_FIBSHIFT) & M_FIB);  \
> +        KASSERT((_m)->m_flags & M_EXT, ("No FIB on non header mbuf")); \
> +       ((_m)->m_pkthdr.fibnum) = (_fib);                               \
>  } while (0)

This KASSERT triggers on my box at home. Sorry, but busy right now, so
I can't spend too much time debugging this. Right after getting a
DHCPACK on bootup, the box panics. Copied by hand:

panic: No FIB on non header mbuf
..
db> bt
kassert_panic()
rt_newaddrmsg_fib()
rtinit1()
in_scrubprefix()
in_control()
ifioctl()
kern_ioctl()
sys_ioctl()
amd64_syscall()
Xfast_syscall()

--
Ed Schouten <ed@80386.nl>