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Description of problem: The newly released libxcb 1.1-1 causes jre 1.5 to break (can be a problem with jre, some complain about this with other distros; however, libxcb 1.0-4 works fine) Version-Release number of selected component (if applicable): 1.1-1 How reproducible: 100% Steps to Reproduce: 1. upgrade libxcb from 1.0-4 to 1.1.1 2. run IDV 2.5 (downloaded from unidata.ucar.edu, contains jre) 3. Actual results: jre breaks with the infamous "Locking assertion failure" message, giving traceback: #0 /usr/lib/libxcb-xlib.so.0 [0xf7f88777] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xf7f888d1] #2 /usr/lib/libX11.so.6(_XReply+0xff) [0x9fc12f] #3 /usr/local/IDV_2.5/jre/lib/i386/xawt/libmawt.so [0xcc344d3e] #4 /usr/local/IDV_2.5/jre/lib/i386/xawt/libmawt.so [0xcc32ed47] #5 /usr/local/IDV_2.5/jre/lib/i386/xawt/libmawt.so [0xcc32eec3] #6 /usr/local/IDV_2.5/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvir onment_initDisplay+0x26) [0xcc32f106] #7 [0xf1608028] #8 [0xf1601b6b] #9 [0xf1601b6b] #10 [0xf15ff234] #11 /usr/local/IDV_2.5/jre/lib/i386/server/libjvm.so [0xf780a75c] #12 /usr/local/IDV_2.5/jre/lib/i386/server/libjvm.so [0xf79d8b48] #13 /usr/local/IDV_2.5/jre/lib/i386/server/libjvm.so [0xf780a58f] #14 /usr/local/IDV_2.5/jre/lib/i386/server/libjvm.so(JVM_DoPrivileged+0x32d) [0x f7867d7d] #15 /usr/local/IDV_2.5/jre/lib/i386/libjava.so(Java_java_security_AccessControll er_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xf75892cd] #16 [0xf16078b8] #17 [0xf1601a94] #18 [0xf15ff234] #19 /usr/local/IDV_2.5/jre/lib/i386/server/libjvm.so [0xf780a75c] java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed. Expected results: just get the IDV working as usual Additional info:
Yeah, works in F9, just missed that bit of the backport.
libxcb-1.1-1.1.fc8 has been submitted as an update for Fedora 8
libxcb-1.1-1.1.fc8 has been pushed to the Fedora 8 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update libxcb'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F8/FEDORA-2008-6894
libxcb-1.1-1.1.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.
Confirm that 1.1-1.1 fixes this behavior on my F8 install (see also comments about this issue at bug 390261 and bug 452683) --Thanks Adam
Apparently there were two problems. After the fix, the java application I am using (IDV) does not crash, but keeps complaining (xlib lock assertion failure).
OK, so this bug could be closed as CURRENTRELEASE 1.1-1.1?
I think the reasons for generating error messages should be found (or, better, fixed) before closing the bug. These messages were not produced with libxcb 1.0-4 in the same environment.
(In reply to comment #8) > I think the reasons for generating error messages should be found > (or, better, fixed) before closing the bug. These messages were not > produced with libxcb 1.0-4 in the same environment. Eh, kinda. The problem is libX11 allows you to be sloppy about locking when multithreaded. xcb tried to be more strict, but that breaks 20 year old assumptions. So the fix is to just make xcb more tolerant when it's emulating libX11.
I'm still seeing these with IDL and 1.1-1.1: Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x2f8777] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x2f883e] #2 /usr/lib/libX11.so.6 [0x186168] #3 /usr/lib/libX11.so.6(XSync+0x25) [0x17ae65] #4 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xf980c3] #5 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xdd3be4] #6 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xdd3bff] #7 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_RBtreeTraverse_ID+0x1b) [0 xdd41cc] #8 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(_IDL_X_SyncDisplays+0x35) [0xf 98115] #9 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(_IDL_x_drain_events2+0x3b) [0x e49d84] #10 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xe4681f] #11 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_InterExit+0x24) [0xc769f4 ] #12 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_MessageThrowErrstate+0x1b c) [0xca476d] #13 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xca4cd5] #14 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_Message+0x61) [0xca5326] #15 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xf96208] #16 /usr/lib/libX11.so.6(_XError+0xfe) [0x17f71e] #17 /usr/lib/libX11.so.6 [0x186aaa] #18 /usr/lib/libX11.so.6(_XEventsQueued+0x4f) [0x186f9f] #19 /usr/lib/libX11.so.6(_XFlush+0x42) [0x187022] Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x2f8777] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x2f883e] #2 /usr/lib/libX11.so.6 [0x186168] #3 /usr/lib/libX11.so.6(XSync+0x25) [0x17ae65] #4 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xf980c3] #5 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xdd3be4] #6 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xdd3bff] #7 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_RBtreeTraverse_ID+0x1b) [0 xdd41cc] #8 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(_IDL_X_SyncDisplays+0x35) [0xf 98115] #9 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(_IDL_x_drain_events2+0x3b) [0x e49d84] #10 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xe4681f] #11 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_InterExit+0x24) [0xc769f4 ] #12 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_MessageThrowErrstate+0x1b c) [0xca476d] #13 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xca4cd5] #14 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0(IDL_Message+0x61) [0xca5326] #15 /opt/local/rsi/idl/bin/bin.linux.x86/libidl.so.7.0 [0xf96208] #16 /usr/lib/libX11.so.6(_XError+0xfe) [0x17f71e] #17 /usr/lib/libX11.so.6 [0x186aaa] #18 /usr/lib/libX11.so.6(_XReply+0x15c) [0x18718c] #19 /usr/lib/libX11.so.6(XSync+0x6a) [0x17aeaa] and the application hangs.
(In reply to comment #8) > I think the reasons for generating error messages should be found > (or, better, fixed) before closing the bug. These messages were not > produced with libxcb 1.0-4 in the same environment. Sorry, somehow your previous message I got only after posting mine.
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