xen discuss - Oct 2009 - Explanation of "WARNING: Unexpected INT 1 in user mode, dr6=ffff0ff0" (is this 6773998 ?)

Hi,

I was trying to find an explanation for

	WARNING: Unexpected INT 1 in user mode, dr6=ffff0ff0

on an s10 HVM domU on an snv_122 som0 and noticed bug 6773998. From the 
description it is not quite clear if the message is related to a root-cause or
not.

Could anyone please give a brief explanation as to what the "Unexpected INT
1"
is and which effects it could cause? I am seeing many of these messages when 
running a metaset command:

Oct  6 22:13:36 pub0-node1 unix: WARNING: Unexpected INT 1 in user mode, 
dr6=ffff0ff0
Oct  6 22:16:29 pub0-node1 last message repeated 1478 times
Oct  6 22:16:44 pub0-node1 unix: WARNING: Unexpected INT 1 in user mode, 
dr6=ffff0ff0
Oct  6 22:23:18 pub0-node1 last message repeated 231 times
Oct  6 22:23:18 pub0-node1 unix: WARNING: Unexpected INT 1 in user mode, 
dr6=ffff0ff0
Oct  6 22:29:44 pub0-node1 last message repeated 403 times
Oct  6 22:29:59 pub0-node1 unix: WARNING: Unexpected INT 1 in user mode, 
dr6=ffff0ff0
Oct  6 22:36:20 pub0-node1 last message repeated 233 times
Oct  6 22:36:50 pub0-node1 unix: WARNING: Unexpected INT 1 in user mode, 
dr6=ffff0ff0
Oct  6 22:43:11 pub0-node1 last message repeated 639 times
Oct  6 22:43:26 pub0-node1 unix: WARNING: Unexpected INT 1 in user mode, 
dr6=ffff0ff0
Oct  6 22:47:01 pub0-node1 last message repeated 997 times

As the metaset command behaves erroneously, it would be good to know if the two 
symptoms could be related. (see also 
http://www.opensolaris.org/jive/thread.jspa?threadID=114579&tstart=0).

Any feedback is highly appreciated. Thank you, Nils

On Tue, Oct 06, 2009 at 11:19:40PM +0200, Nils Goroll wrote:
> I was trying to find an explanation for
> 
> 	WARNING: Unexpected INT 1 in user mode, dr6=ffff0ff0
> 
> on an s10 HVM domU on an snv_122 som0 and noticed bug 6773998. From the 
> description it is not quite clear if the message is related to a root-cause
> or not.
We see this when running MDB. As of yet, we don''t have any analysis of
the issue or whether its effects are troublesome or not.

regards
john

John, thank you for your quick feedback.

Hi John,
> As of yet, we don''t have any analysis of
> the issue or whether its effects are troublesome or not.
Just to complete the picture: I suspect they could be related to some weird
issues I ran into, but I cannot come up with a definite statement. All I know is
that what didn''t work when I got the warnings does work now, and I
don''t get the warnings. But correlation != cause ...

Ref: 
http://opensolaris.org/jive/message.jspa?messageID=424819#424819


> 
> regards
> john
> _______________________________________________
> xen-discuss mailing list
> xen-discuss@opensolaris.org
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