[comp.windows.x] xlock hanging problems on Sun 4/280

fuller@kadsma.kodak.COM (Bill Fuller) (08/30/90)

Hi,

	I have been running X windows on all of our Sun platforms since
R2.  I have had no problems with any of our stations (which includes
386i's SUN 4/110 SUN 3/110 and Sparc 1's) running X except for one
lonely 4/280.  The configuration for this box is as follows:

SUN 4/280
SunOS 4.0.3
40 Meg RAM
2 Eagle Hard drives.
1 1/2 in tape
1 exabyte.
	
	Anyways, here is the problem....If a user uses xlock on this host,
it will quickly hangup, not allow the user to get back in.  I have tried to
attach to the process with dbx, but dbx gets hung during the reading of
the symbol
table.  The process will not respond to any of the core dumping signals, and
eventually, you end up having to kill the thing with a -9.  Needless to say,
the usual user of this station is quite upset...Can anyone help shed some light
onto this matter?

William H. Fuller		Dial: (716)-726-2311
Senior Systems Consultant	UUCP: ...!rochester!kodak!kadsma!fuller
Rochester, N.Y.			ARPA: fuller@kadsma.kodak.com

naughton@wind.Eng.Sun.COM (Patrick Naughton) (08/31/90)

|>> fuller@kadsma.kodak.COM (Bill Fuller) writes:
|> Hi,
|> 
|> 	I have been running X windows on all of our Sun platforms since
|> R2.  I have had no problems with any of our stations (which includes
|> 386i's SUN 4/110 SUN 3/110 and Sparc 1's) running X except for one
|> lonely 4/280
|> 	
|> 	Anyways, here is the problem....If a user uses xlock on this host,
|> it will quickly hangup, not allow the user to get back in.  I have tried to
|> attach to the process with dbx, but dbx gets hung during the reading of
|> the symbol
|> table.  The process will not respond to any of the core dumping signals, and
|> eventually, you end up having to kill the thing with a -9.  Needless to say,
|> the usual user of this station is quite upset...Can anyone help shed
some light
|> onto this matter?
|> 
|> William H. Fuller		Dial: (716)-726-2311
|> Senior Systems Consultant	UUCP: ...!rochester!kodak!kadsma!fuller
|> Rochester, N.Y.			ARPA: fuller@kadsma.kodak.com
--

I have had about a dozen reports of xlock "hanging" for mysterious
reasons over the last year... I recently rewrote most of it to support
multiple screens and xrm and in the process removed a lot of redundant
sigblock(2), and sigsetmask(2) calls, which seems to have made the
problem disappear on the one machine here at Sun where it was
happening...

Watch this space for an announcement of source availability for this
latest version of xlock... (Septemberish)

-Patrick
   
______________________________________________________________________
    Patrick J. Naughton				    ARPA: naughton@sun.com
    Window Systems Group			    UUCP: ...!sun!naughton
    Sun Microsystems, Inc.			    AT&T: (415) 336 - 1080