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From: Frank Sorenson <frank@tuxrocks.com>
To: Jeff Dike <jdike@addtoit.com>
Cc: user-mode-linux-devel@lists.sourceforge.net,
	user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] Re: [uml-devel] Fixing the 2.4 bugs - patches against 2.4.24-1um
Date: Thu, 15 Jul 2004 09:39:39 -0600 (MDT)	[thread overview]
Message-ID: <Pine.LNX.4.60.0407131416490.28985@tuxrocks.com> (raw)
In-Reply-To: <200407131934.i6DJYMGu003420@ccure.user-mode-linux.org>

On Tue, 13 Jul 2004, Jeff Dike wrote:
> I don't think it should, unless you're profiling.  The problem is that -pg
> and regparam(3) don't (or didn't) interact nicely.  The -pg code trashed
> the arguments that regparam was passing in registers, and you'd get strange
> panics early in boot.
>
> Have you checked that this actually fixes anything?  It looks like just a
> stupid typo to me.

Yes, it is definitely a stupid typo, and I don't think this alone fixes 
anything significant, but there appears to be another bug underneath. 
Without -DUM_FASTCALL, I've been seeing the kernel panics we previously 
discussed.  There appears to be some other bug that exists at least as 
early as 2.4.24-1um, triggered when UM_FASTCALL is not defined.  I've 
verified that this is the case with the following versions:

2.4.24-1um
2.4.24-2um
2.4.24-3um
2.4.25-1um
2.4.26-1um

The panic I'm getting is very repeatable--every time I run the j2eesdk 
installer, it'll panic, but if UM_FASTCALL is defined, it runs just fine.

Frank
---------------------------------------------------------------------------
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@tuxrocks.com


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  reply	other threads:[~2004-07-15 15:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-01 18:50 [uml-devel] Fixing the 2.4 bugs - patches against 2.4.24-1um BlaisorBlade
2004-07-07 20:51 ` Frank Sorenson
2004-07-08 16:38   ` [uml-user] " BlaisorBlade
2004-07-09 19:55     ` Frank Sorenson
2004-07-13 19:34   ` Jeff Dike
2004-07-15 15:39     ` Frank Sorenson [this message]
2004-07-21 17:27 ` [uml-devel] Fixing the 2.4 bugs - patches against 2.4.24-1um - new ones BlaisorBlade

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