Date: Tue, 13 Oct 1998 16:25:07 -0500 From: Chris Csanady <ccsanady@friley-185-114.res.iastate.edu> To: freebsd-alpha@FreeBSD.ORG Subject: kernel traps on boot.. Message-ID: <199810132125.QAA04010@friley-185-114.res.iastate.edu>
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I seem to be having quite a bit of trouble with booting
kernels in the last couple of days. It has almost looked
random. Currently I have 2 boxes, with identical kernels
and boot blocks and one of them simply fails to boot. :(
I get the following:
1978288+179496 [32859+1492+246528+139953]
Entering /kernel at 0xfffffc0000320500...
[ preserving 425904 bytes of kernel symbol table ]
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-BETA #0: Tue Oct 13 14:46:15 CDT 1998
ccsanady@ariel.scl.ameslab.gov:/usr/src/sys/compile/ARIEL
EB164
Digital AlphaPC 164LX 533 MHz, 531MHz
8192 byte page size, 1 processor.
real memory = 534929408 (522392K bytes)
avail memory = 516169728 (504072K bytes)
fatal kernel trap:
trap entry = 0x4 (unaligned access fault)
a0 = 0x2fe00000c3e00003
a1 = 0x28
a2 = 0x1
pc = 0xfffffc0000364640
ra = 0xfffffc0000484358
curproc = 0
ddbprinttrap from 0xfffffc0000364640
ddbprinttrap(0x2fe00000c3e00003, 0x28, 0x1, 0x4)
panic: trap
panic
Stopped at Debugger+0x2c: ldq ra,0(sp) <0xfffffc000057bb58>
<ra=0xfffffc0000472f38,sp=0xfffffc000057bb58>
db> trace
Debugger() at Debugger+0x2c
panic() at panic+0xf4
trap() at trap+0x658
XentUna() at XentUna+0x20
parse_module_symbols() at parse_module_symbols+0x38
(null)() at 0x6
db>
Regardless, should a alignment trap cause the machine to die? I
think in NetBSD, they just print it to the console. Has anyone
else noticed similar behavior?
Not being able to reliably build a kernel makes it really hard
to get things done. I finally have my GNIC II driver mostly
working on the alpha too. Oh well.. I think it's a bit late
for 3.0 anyways.
Chris Csanady
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