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Re: cause IP zero on interrupt

To: Noor <noor.mubeen@gmail.com>
Subject: Re: cause IP zero on interrupt
From: David Daney <david.daney@cavium.com>
Date: Fri, 21 Oct 2011 13:39:22 -0700
Cc: "linux-mips@linux-mips.org" <linux-mips@linux-mips.org>
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On 10/21/2011 01:18 PM, Noor wrote:
what does it mean if cause register IP bits are zero after
interrupt exception  has already been invoked ?


It might mean that something was asserting a '1' on to those bits, but quit doing so before you could read the cause register, or it could be that you get random interrupt exceptions for no reason at all.

David Daney


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