0007415: RFB Client: 'doesNotUnderstand' exception while entering password when trying to connect to local VNC desktop. - Mantis

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ID

Category

Severity

Reproducibility

Date Submitted

Last Update

0007415

[Squeak Packages] RemoteFrameBuffer

major

sometimes

11-21-09 11:10

11-27-09 15:46

Reporter

bitmonki

View Status

public

Assigned To

Priority

normal

Resolution

open

Status

new

Summary

0007415: RFB Client: 'doesNotUnderstand' exception while entering password when trying to connect to local VNC desktop.

Description

This happens about 4 times out of 5 attempts -- it will connect successfully occasionally.

Actually, this exception is 'handled' (i.e., logged and then execution continues), I only noticed this error via the Transcript, and then inserted a 'self break' in 'RFBClientSocket runSafely:' so I could debug. Regardless, this causes the connection attempt to 'silently' fail, if one doesn't have a Transcript open, one might be completely clueless.

This appears to be Morphic-related. Looking at the stack trace, what seems to be happening is that during RFBCLient>>rfbAuthentication a FIllIntheBlank morph is displayed. This morph has a loop to allow events to happen while the user types the password.

During this loop, HandMorph>>noticeMouseOver events are reported, and eventually 'leftMorphs' is nil:

MouseOverHandler>>noticeMouseOver: aMorph event: anEvent
    "Remember that the mouse is currently over some morph"
    (leftMorphs includes: aMorph)
        ifTrue:[leftMorphs remove: aMorph]
        ifFalse:[enteredMorphs nextPut: aMorph].
    overMorphs nextPut: aMorph.

(To me this makes sense -- the mouse hasn't left a morph. Oh well.)

Additional Information

RFB-jrd.25.mcz [^] (154,292 bytes) 11-22-09 07:39

Relationships

Notes
(0013392 - 78 - 78 - 78 - 78 - 78 - 78) bitmonki 11-21-09 11:32	P.S. 'enteredMorphs', and more worryingly, 'overMorphs' are also nil. Hooboy.

(0013393 - 144 - 144 - 144 - 144 - 144 - 144) leves 11-21-09 15:38	It would be useful if you could prove the version of your image, vm and rfb package and some information about the server you are connecting to.

(0013395 - 648 - 780 - 780 - 894 - 894 - 894) bitmonki 11-22-09 07:11	Ooops. Of course. VM: chris@naia:> ./cobalt.sh -version 3.9-10 #1 Thu Feb 22 11:09:51 CST 2007 gcc 4.1.1 Squeak3.9alpha of 4 July 2005 [latest update: 0007021] Linux metroid 2.6.18-1.2257.fc5smp #1 SMP Fri Dec 15 16:33:51 EST 2006 i686 i686 i386 GNU/Linux default plugin location: /usr/local/lib/squeak/3.9-10/*.so RFB: RFB-jrd.25 (may be OpenCobalt-specific? 'jrd' probably John Dougan) Trancript reports: server version 3.7 viewer version 3.7 RFB: caught MessageNotUnderstood: UndefinedObject>>includes: Image: Smalltalk version.(Alt-P)=> 'Croquet1.0beta' VNC server (running at 127.0.0.1:1): tightvnc 1.3.9-90.pm.1 (i586)

(0013406 - 86 - 86 - 86 - 86 - 86 - 86) leves 11-27-09 15:46	It's not an RFB, but a Morphic issue. It has been fixed in Pharo and the Squeak trunk.

Issue History
Date Modified	Username	Field	Change
11-21-09 11:10	bitmonki	New Issue
11-21-09 11:31	bitmonki	Issue Monitored: bitmonki
11-21-09 11:32	bitmonki	Note Added: 0013392
11-21-09 15:38	leves	Note Added: 0013393
11-22-09 07:11	bitmonki	Note Added: 0013395
11-22-09 07:39	bitmonki	File Added: RFB-jrd.25.mcz
11-27-09 15:46	leves	Note Added: 0013406

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