[altq 1410] Re: FreeBSD 4.5 kernel panic

[Piotr Stolc <socrtp@sedez.iq.pl>]

On Mon, Mar 25, 2002 at 05:09:45PM +0900, Kenjiro Cho wrote:
> Sounds like a bug in freebsd kernel ppp support of altq-3.1.

Yes, now I can confirm this.

> Can you get a stack trace after a panic?  (you need a kernel
> with "options DDB".)

I hope this is it :) (GENERIC kernel with ALTQ and DDB, ipfilter 3.4.20) :

fatal trap 12: page fault while in kernel mode
[...]
kernel: type 12 trap, code=0
Stopped at ppp_ifstart+0x9: movl 0x110 (%eax),%eax
db> trace
ppp_ifstart(c042a300) at ppp_ifstart+0x9
tbr_timeout(0,400000,0,0,ffffffff) at tbr_timeout+0x41
softclock(0,7e0f0010,c0120010,c6e40010,ffffffff) at softclock+0xd1
doreti_swi() at doreti_swi+0xf
db>



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s.