Sun Studio Tools Forum - dbx "Unexpected INT 1 from user space" on x86/Parallels

Using Solaris 10 (x86) under Parallels on Mac:

Running a program under dbx gives this console error:

"Unexpected INT 1 in user mode, dr6=ffff0ff0"

and locks the vm hard.

Same behavior under Studio 11 or 12 EA.

Is this a Parallels problem or dbx? I heard the same problem happens on VMWare.

[326 byte] By [TroyHansona] at [2007-11-26 23:24:02]

# 1

It's not a dbx problem.

Debuggers rely on traps to get their job done. INT 3

is the breakpoint instruction. This message may have something

to do with single-stepping traps.

Virtualization technology also has to rely and work with traps so

it's not surprising that debuggers and virtualization technology

will run into trouble.

I need to research this more and see if I can come up with something

more concrete.

IvanIgorovicha at 2007-7-10 14:30:23 >

# 2

Have you tried Linux under Parallels? I am curious if dbx on Linuxhas the same problem as dbx on Solaris.

ChrisQuenellea at 2007-7-10 14:30:23 >

# 3

Using Solaris 10 (x86) under Parallels on Mac:

Running a program under dbx gives this console

error:

"Unexpected INT 1 in user mode, dr6=ffff0ff0"

and locks the vm hard.

Same behavior under Studio 11 or 12 EA.

Is this a Parallels problem or dbx?

Parallels problem

I heard the same problem happens on VMWare.

Or in qemu:

http://mail.opensolaris.org/pipermail/qemu-discuss/2007-March/000193.html

Do all these virtualization environments copy bugs from qemu?

Juergen.Keila at 2007-7-10 14:30:23 >

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