[comp.windows.x] What is "sequence lost!" ???

tlastran@esunix.UUCP (05/11/88)

I have a problem that causes twm to crash without going through my
error handler.  I see the message "sequence lost!".  I found this 
message in XlibInt.c in the Xlib directory.  Can someone tell me 
what this is and what I may be doing to cause this error?

--
Tom LaStrange
Evans & Sutherland Computer Corporation

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jim@EXPO.LCS.MIT.EDU (Jim Fulton) (05/13/88)

Sequence lost is generated by Xlib when it recieves an event that doesn't have
a valid sequence number.  If you are running with an R1 server, you will see
this when MappingNotify events (and potentially others) are generated.  If you
are using an R2 server and can cause the sequence lost message to occur
reliably, you might want to recompile XlibInt.c debuggable, set a break point
at the message, and look at the contents of the variable rep (or modify the
print statement to print out the event type).  In particular, you should look
at the type field to see what sort of event or reply is broken and send a 
report to xbugs@expo.lcs.mit.edu.

Jim Fulton
MIT X Consortium