Mailinglist Archive: opensuse-bugs (4181 mails)

[bugzilla_noreply@xxxxxxxxxx]

http://bugzilla.novell.com/show_bug.cgi?id=510796


           Summary: xorg-x11-libX11 with pthread isn't thread safe in
                    xcb_lock.c
    Classification: openSUSE
           Product: openSUSE 11.1
           Version: Final
          Platform: x86-64
        OS/Version: openSUSE 11.1
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: X.Org
        AssignedTo: bnc-team-xorg-bugs@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: gunnar@xxxxxxxx
         QAContact: xorg-maintainer-bugs@xxxxxxxxxxxxxxxxxxxxxx
          Found By: ---


Created an attachment (id=296660)
 --> (http://bugzilla.novell.com/attachment.cgi?id=296660)
Example code file for xcb_lock.c error

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; de-AT; rv:1.8.1.19)
Gecko/20081213 SUSE/1.1.14-1.1 SeaMonkey/1.1.14

I use the xorg-x11-libX11 library 7.4-1.29, glibc library 2.9-2.11.1.

One thread use the XDrawPoints function to put pixel to the window.
An other thread waits with XNextEvent for an event.

Every time I produce some events the program stops.


Reproducible: Sometimes

Steps to Reproduce:
1. translate the xcb_Test.c with gcc -o xcb_Test xcb_Test.c -pthread
-I/usr/include/X11 -lX11
2. run the program xcb_Test
3. to tap some keys
Actual Results:  
Every time I produce some events the program stops with

xcb_lock.c:33: _XCBUnlockDisplay: Assertion
`xcb_get_request_sent(dpy->xcb->connection) == dpy->request' failed.

or

xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request))
> = 0)' failed.



In the xorg-x11-libX11-7.4-1.29.src.rpm is the file xcb_lock.c.
The file has a line
#include <pthread.h>
but nothing is used. I can translate the file without this line.

-- 
Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.