km@mathcs.emory.edu (Ken Mandelberg) (06/02/89)
I am trying to trace a problem in running a particular X-client,
in this case x11ps out of the Sun3 Mathematica 1.1 release.
When I try it against 3 different X servers, two give up with
a protocol error in CreateWindow while the third is happy.
The two that bomb, specifically give a Bad Value error. As it happens I
I have source to the server without the problem, but none to the
two that fail, I'm having trouble telling what the Value error is.
I'm enclosing matched sets of xscope traces for the CreateWindow
and the error reply (in two bad cases). Note that the Client Request
is essentailly identical in all cases. With the two bad servers, the
Bad Values are different and difficult to reconcile against the request.
For the first bad server, the bad balue is meaningless to me. For the
second it happens to coinicde with the "do-not-propogate-mask", a mask
that is identical in all requests.
Any insight would be appreciated.
I don't have source to either the client or the two servers it fails with,
and boy do I hate it!
========Working Server==============
0.96: Client --> 92 bytes
Request (fd 4): 01 08 00 0c 00 60 00 01 00 08 00 6b 01 78
00 fa 01 90 01 90 00 03 00 01 00 08 00 64 00 00 18 0a 00 00 00 00 00 00 00 01
00 02 00 00 00 22 a0 3d
............REQUEST: CreateWindow
sequence number: 3
depth: 08
request length: 000c
wid: WIN 00600001
parent: WIN 0008006b
x: 376
y: 250
width: 0190
height: 0190
border-width: 0003
class: InputOutput
visual: VIS 00080064
value-mask: background-pixel | border-pixel | event-mask | do-not-propagate-mask
value-list:
background-pixel: 00000000
border-pixel: 00000001
event-mask: StructureNotify
do-not-propagate-mask: KeyPress | ButtonPress | ButtonRelease | ButtonMotion
==========Bad Server 1============
73.06: Client 2 --> 92 bytes
Request (fd 4): 01 08 00 0c 00 a0 00 01 00 08 00 6c 01 78
00 fa 01 90 01 90 00 03 00 01 00 08 00 68 00 00 18 0a 00 00 00 fe 00 00 00 ff
00 02 00 00 00 22 a0 3d
............REQUEST: CreateWindow
sequence number: 3
depth: 08
request length: 000c
wid: WIN 00a00001
parent: WIN 0008006c
x: 376
y: 250
width: 0190
height: 0190
border-width: 0003
class: InputOutput
visual: VIS 00080068
value-mask: background-pixel | border-pixel | event-mask | do-not-propagate-mask
value-list:
background-pixel: 000000fe
border-pixel: 000000ff
event-mask: StructureNotify
do-not-propagate-mask: KeyPress | ButtonPress | ButtonRelease | ButtonMotion
73.16: 32 bytes <-- X11 Server 2
Error: Error (fd 5): 00 02 00
03 00 a0 00 00 00 00 01 68 0e ff f9 90 00 3d 2b e8 00 3d 2b 68 00 13 bd 0c 00
00 00 04
..............ERROR: Value
sequence number: 0003
bad value: 10485760 (0xa00000)
minor opcode: 0000
major opcode: 01
=========Bad Server 2=========
0.36: Client --> 92 bytes
Request (fd 4): 01 08 00 0c 00 a0 00 01 00 08 00 6b 00 78
00 28 01 90 01 90 00 03 00 01 00 08 00 64 00 00 18 0a 00 00 00 fc 00 00 00 fd
00 02 00 00 00 22 a0 3d
............REQUEST: CreateWindow
sequence number: 3
depth: 08
request length: 000c
wid: WIN 00a00001
parent: WIN 0008006b
x: 120
y: 40
width: 0190
height: 0190
border-width: 0003
class: InputOutput
visual: VIS 00080064
value-mask: background-pixel | border-pixel | event-mask | do-not-propagate-mask
value-list:
background-pixel: 000000fc
border-pixel: 000000fd
event-mask: StructureNotify
do-not-propagate-mask: KeyPress | ButtonPress | ButtonRelease | ButtonMotion
0.46: 96 bytes <-- X11 Server
Error: Error (fd 5): 00 02 00
03 00 22 a0 3d 00 00 01 64 1f ff fa f4 00 00 18 0a 00 41 ec 78 00 48 20 a8 00
48 30 ac
..............ERROR: Value
sequence number: 0003
bad value: 2269245 (0x22a03d)
minor opcode: 0000
major opcode: 01
--
Ken Mandelberg | km@mathcs.emory.edu PREFERRED
Emory University | {decvax,gatech}!emory!km UUCP
Dept of Math and CS | km@emory.bitnet NON-DOMAIN BITNET
Atlanta, GA 30322 | Phone: (404) 727-7963rws@EXPO.LCS.MIT.EDU (06/03/89)
I think xscope is deficient in the case of printing masks, because it doesn't tell you what garbage bits are being set that shouldn't be. Your client is almost certainly passing extraneous bits in the do-not-propagate-mask. A correct server will give you an error (the MIT R3 server is incorrect here).