Description of problem: Emacs hangs and outputs an error message: Locking assertion failure. Backtrace: #0 /usr/lib64/libxcb-xlib.so.0 [0x317640097c] ... when dragging to select text in a buffer. Version-Release number of selected component (if applicable): emacs-el-22.2-5.fc9.x86_64 emacs-22.2-5.fc9.x86_64 emacs-common-22.2-5.fc9.x86_64 How reproducible: On x86_64 Fedora system: emacs -q & and drag to select text. Steps to Reproduce: 1. emacs -q & 2. drag to select text in initially displayed buffer. 3. Actual results: Emacs hangs and displays error message Expected results: No hang, no error message, text to be selected Additional info: Full error message is: Locking assertion failure. Backtrace: #0 /usr/lib64/libxcb-xlib.so.0 [0x317640097c] #1 /usr/lib64/libxcb-xlib.so.0(xcb_xlib_lock+0x17) [0x3176400af7] #2 /usr/lib64/libX11.so.6 [0x317604c610] #3 /usr/lib64/libX11.so.6(XFlush+0x12) [0x3176024d82] #4 /usr/lib64/libgdk-x11-2.0.so.0(gdk_display_flush+0x98) [0x318044676a] #5 /usr/lib64/libgdk-x11-2.0.so.0 [0x318043d1e5] #6 /usr/lib64/libgdk-x11-2.0.so.0(gdk_window_process_all_updates+0xf9) [0x318043d2fc] #7 emacs [0x48cf93] #8 emacs [0x48d062] #9 emacs [0x48d940] #10 emacs [0x48d9ad] #11 /usr/lib64/libX11.so.6(_XError+0xf4) [0x3176045524] #12 /usr/lib64/libX11.so.6 [0x317604cf5f] #13 /usr/lib64/libX11.so.6(_XReply+0x18a) [0x317604d30a] #14 /usr/lib64/libX11.so.6(XSync+0x63) [0x3176040db3] #15 emacs [0x48cf9d] #16 emacs [0x4a2fbc] #17 emacs [0x530937] #18 emacs [0x55ec2a] #19 emacs [0x532a05] uname -a Linux cs5 2.6.25-14.fc9.x86_64 #1 SMP Thu May 1 06:06:21 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux System has almost all current rpms installed. yum check-update kernel.x86_64 2.6.26.6-79.fc9 updates-newkey kernel-headers.x86_64 2.6.26.6-79.fc9 updates-newkey kerneloops.x86_64 0.12-1.fc9 updates-newkey
Later I observed several emacs processes running w/o a display window: 11254 root 20 0 131m 24m 9876 R 25.3 1.2 182:08.06 emacs 11469 root 20 0 131m 24m 9856 R 25.0 1.2 180:41.90 emacs 13335 trudy 20 0 131m 24m 9836 R 25.0 1.2 62:09.06 emacs 13392 trudy 20 0 131m 24m 9820 R 25.0 1.2 48:09.37 emacs 13589 trudy 20 0 131m 24m 9820 R 25.0 1.2 45:35.75 emacs 13596 trudy 20 0 127m 20m 9800 R 25.0 1.0 45:11.26 emacs 11578 root 20 0 131m 24m 9864 R 24.6 1.2 174:09.46 emacs 13538 root 20 0 130m 23m 9816 R 24.6 1.2 47:59.00 emacs I killed most of these processes with the default kill signal. While doing so, two processes changed state to: ps -Al | grep emacs 0 S 511 13335 1 28 80 0 - 33599 futex_ pts/0 01:02:53 emacs 0 S 0 13538 1 25 80 0 - 33486 futex_ pts/1 00:48:43 emacs but were only killable using kill -9 Earlier, when the emacs processes were hung so c-x c-c was not usable, I had used the window manager (fvwm) destroy op to kill emacs. That got rid of the emacs windows but apparently left a process still running. It looks like one process was left for each test I ran. I then ran emacs -q & followed by lsof -p <process>. Next, I caused the failure and ran lsof -p <process> again. The second time, after the failure, lsof listed one additional loaded lib: emacs 29820 root mem REG 8,8 93416 293917 /lib64/libgcc_s-4.3.0-20080428.so.1 Otherwise, the lsof output was identical.
I ran the following: yum erase emacs yum install emacs-1:22.2-4.fc9.x86_64 yum update emacs I can no longer reproduce this problem. Both emacs-1:22.2-4 and emacs-1:22.2-5 work OK. I reduced the priority to low.
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Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.