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Re: looking for help interpreting softlockup/stack trace

To: David Daney <>
Subject: Re: looking for help interpreting softlockup/stack trace
From: Ralf Baechle <>
Date: Thu, 7 Aug 2008 14:43:23 +0100
Cc: Chris Friesen <>,, Thiemo Seufer <>
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <>
User-agent: Mutt/1.5.18 (2008-05-17)
On Wed, Aug 06, 2008 at 11:57:32AM -0700, David Daney wrote:

>>> In the trace below, is "epc" the program counter at the time of the   
>>> timer interrupt?  How does "ra" fit into this, given that the 
>>> function  whose address it contains isn't seen in the stack trace 
>>> until quite a  ways down?
>> $LBB378 is an internal symbol.  The value of RA may not be very informative
>> if it was overwritten by a random subroutine call.
> I have thought about eliminating these internal labels when the module's 
> symbols are read.  Would this make any sense?

I think so.  Maybe that could even be done when the module is linked.  I
don't think there are ever any relocations against these local symbols.


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