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To: current@freebsd.org
From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Sun, 07 Nov 2004 12:19:46 +0100
Message-ID: <21551.1099826386@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Subject: DDB backtraces hosed :-(
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db> trace
_mtx_assert(28,1,c07ef73b,57e,c1152280) at 0xc0606078 = _mtx_assert+0x38
fdinit(0,c0887870,c1147530,c0c21d98,c05eb557) at 0xc05f0b72 = fdinit+0x1e
proc0_init(0,c1147c24,c1ec00,c1e000,c29000) at 0xc05eb83b = proc0_init+0x24f
mi_startup() at 0xc05eb557 = mi_startup+0xb3
begin() at 0xc043e835 = begin+0x2c
db> 

It looks like every other frame is missing ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.