In my case the crash happens randomly, when I'm working with NetBeans 21. I didn't any system updates. Perhaps the NetBeans made auto update.
My log lile: [ 356.402] (EE) [ 356.402] (EE) Backtrace: [ 356.403] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x5594ee295fdc] [ 356.404] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7f37ec080420] [ 356.405] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (__libc_malloc+0x11e) [0x7f37ebf121fe] [ 356.405] (EE) 3: /usr/lib/xorg/Xorg (SetGlyphPicture+0x15d) [0x5594ee201ced] [ 356.405] (EE) 4: /usr/lib/xorg/Xorg (AddTraps+0x4b5a) [0x5594ee20bb5a] [ 356.405] (EE) 5: /usr/lib/xorg/Xorg (SendErrorToClient+0x354) [0x5594ee134144] [ 356.405] (EE) 6: /usr/lib/xorg/Xorg (InitFonts+0x3b4) [0x5594ee1381f4] [ 356.406] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0x7f37ebe9c083] [ 356.406] (EE) 8: /usr/lib/xorg/Xorg (_start+0x2e) [0x5594ee121ace] [ 356.406] (EE) [ 356.406] (EE) Segmentation fault at address 0x0 [ 356.406] (EE) Fatal server error: [ 356.406] (EE) Caught signal 11 (Segmentation fault). Server aborting [ 356.406] (EE) [ 356.406] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 356.406] (EE) Please also check the log file at "/home/user-name/.local/share/xorg/Xorg.0.log" for additional information. [ 356.406] (EE) [ 356.406] (II) AIGLX: Suspending AIGLX clients for VT switch [ 356.425] (EE) Server terminated with error (1). Closing log file. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/2060354 Title: Segfault in 2:21.1.4-2ubuntu1.7-22.04.9 Status in xorg-server package in Ubuntu: Confirmed Bug description: I just upgraded xserver-xorg-core and xserver-common to 2:21.1.4-2ubuntu1.7-22.04.9 and when starting IntelliJ IDEA Ultimate EAP (downloaded from JerBrains website) Xorg server crashes with segfault: X.Org X Server 1.21.1.4 X Protocol Version 11, Revision 0 Current Operating System: Linux nazar-pc 6.8.4-x64v4-xanmod1 #0~20240404.gdb9d4f4 SMP PREEMPT_DYNAMIC Thu Apr 4 20:28:35 UTC x86_64 Kernel command line: BOOT_IMAGE=/root/boot/vmlinuz-6.8.4-x64v4-xanmod1 root=UUID=5170aca4-061a-4c6c-ab00-bd7fc8ae6030 ro rootflags=subvol=root nosplash amd_iommu=on intel_iommu=on libahci.ignore_sss=1 fastboot xorg-server 2:21.1.4-2ubuntu1.7~22.04.9 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.40.0 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Sat Apr 6 15:28:18 2024 (==) Using system config directory "/usr/share/X11/xorg.conf.d" malloc(): unaligned tcache chunk detected (EE) (EE) Backtrace: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x5def21b09ab9] (EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x50) [0x7ec01c442520] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (pthread_kill+0x12c) [0x7ec01c4969fc] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (raise+0x16) [0x7ec01c442476] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (abort+0xd3) [0x7ec01c4287f3] (EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (__fsetlocking+0x426) [0x7ec01c489676] (EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (timer_settime+0x2cc) [0x7ec01c4a0cfc] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (malloc+0x33c) [0x7ec01c4a53dc] (EE) 8: /usr/lib/xorg/Xorg (SetGlyphPicture+0x15d) [0x5def21a6311d] (EE) 9: /usr/lib/xorg/Xorg (AddTraps+0x347a) [0x5def21a6b8da] (EE) 10: /usr/lib/xorg/Xorg (SendErrorToClient+0x365) [0x5def21993635] (EE) 11: /usr/lib/xorg/Xorg (InitFonts+0x3c4) [0x5def219976b4] (EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_init_first+0x90) [0x7ec01c429d90] (EE) 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0x80) [0x7ec01c429e40] (EE) 14: /usr/lib/xorg/Xorg (_start+0x25) [0x5def21980605] (EE) (EE) Fatal server error: (EE) Caught signal 6 (Aborted). Server aborting (EE) (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. (EE) (II) AIGLX: Suspending AIGLX clients for VT switch (EE) Server terminated with error (1). Closing log file. Downgraded to 2:21.1.3-2ubuntu2 for now and it works. Looks like security backports were done incorrectly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/2060354/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp