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Date:      Thu, 9 Dec 2004 22:33:34 +0200
From:      Ruslan Ermilov <ru@FreeBSD.org>
To:        Max Laier <max@love2party.net>
Cc:        current@FreeBSD.org
Subject:   Re: protocol timer running before protocol is fully initialized (again) (was re: panic:  mtx_lock() of spin mutex ...)
Message-ID:  <20041209203334.GB74745@ip.net.ua>
In-Reply-To: <200412091234.19912.max@love2party.net>
References:  <Pine.NEB.3.96L.1041209023008.44319C-100000@fledge.watson.org> <200412090411.42258.max@love2party.net> <20041209101524.GC62331@ip.net.ua> <200412091234.19912.max@love2party.net>

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Hi Max,

On Thu, Dec 09, 2004 at 12:34:08PM +0100, Max Laier wrote:
[...]
> in ip_input() - that's not good! Can you send me the trace? I was under t=
he=20
> impression that net send and esp. reveice is off during this part of the=
=20
> initialization. Crashing ip_input() would question that assumption.
>=20
I don't have a serial attached to this notebook (all my
serial cables are at work), so this is hand-copied from
the screen:

Timecounters tick every 1.000 msec
panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/netinet/ip_input.c:10=
96
KDB: enter: panic
[thread pid 27 tid 100001 ]
Stopped at	kdb_enter+0x32: leal	0(%esi),%esi
db> where
Tracing pid 27 tid 100001 td 0xc1219180
kdb_enter(...) at kdb_enter+0x32
panic(...) at panic+0x14d
_mtx_lock_flags(...) at _mtx_lock_flags+0x114
ip_slowtimo(...) at ip_slowtimo+0x2f
pfslowtimo(...) at pfslowtimo+0x82
softclock(...) at softclock+0x12f
ithread_loop(...) at ithread_loop+0x210
fork_exit(...) at fork_exit+0xa9
fork_trampoline(...) at fork_trampoline+0x8
--- trap 0x1, eip =3D 0, esp =3D 0xcdbbbd7c, ebp =3D 0 ---

PID 27 is "[CPU 0] swi4: clock sio


Cheers,
--=20
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer

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