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Re: Got trap No.23 when booting mips32 ?

To: "wilbur.chan" <>
Subject: Re: Got trap No.23 when booting mips32 ?
From: Sergei Shtylyov <>
Date: Wed, 21 Oct 2009 20:12:01 +0400
In-reply-to: <>
Organization: MontaVista Software Inc.
Original-recipient: rfc822;
References: <>
User-agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803

wilbur.chan wrote:

Hi all,

I've got some problem when booting mips32.

I got a No.23 trap when calling start_kernel --->  local_irq_enable :

irq 23, desc: 802a98a0, depth: 1, count: 0, unhandled: 0
->handle_irq():  80148c6c, handle_bad_irq+0x0/0x2b4
->chip(): 8029f738, 0x8029f738
->action(): 00000000
unexpected IRQ # 23

No.23 trap is a Watch trap, which means that, when

   IRQ # is not a trap #, so the rest of your speculations don't apply.
"unexpected IRQ" probably means that an IRQ occurs for which no handler has been installed...

WBR, Sergei

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