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Re: Vmlinux-2.4.18 booting problems on Malta

To: usha davuluri <>
Subject: Re: Vmlinux-2.4.18 booting problems on Malta
From: Chris Dearman <>
Date: Fri, 27 Aug 2004 14:35:59 +0100
In-reply-to: <>
Organization: MIPS Technologies (UK)
Original-recipient: rfc822;
References: <>
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040421
usha davuluri wrote:
* Exception (user) : Reserved instruction *

Debug    = 0x0000dc3f  EPC      = 0x802e0024

Hi all,
 I am getting the above error output when I say go
(starting address) after loading the kernel source.
please help me on this.
Thank you,

Make sure you're really building a Malta kernel of the correct endianess and CPU type. It's easy to load a big-endian kernel on a little endian board when using srecord downloads.

  Try disassembling the code at 0x802e0024 to see if it makes sense:
YAMON> dis 0x802e0024

You didn't say what CPU you were using. It's possible that the kernel is really using an instruction (eg a cacheop) that is not supported by your CPU.


Chris Dearman          The Fruit Farm, Ely Road    voice +44 1223 706206
MIPS Technologies (UK) Chittering, Cambs, CB5 9PH  fax   +44 1223 706250

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