Public bug reported: When I unlock the screen from screensaver sometimes, but not always, Xwayland coredumps.
$ gdb /usr/bin/Xwayland ~/core GNU gdb (Ubuntu 8.0.1-0ubuntu1) 8.0.1 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/Xwayland...(no debugging symbols found)...done. [New LWP 6786] [New LWP 6787] [New LWP 6790] [New LWP 6788] [New LWP 6789] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/bin/Xwayland :0 -rootless -terminate -core -listen 4 -listen 5 -displayfd'. Program terminated with signal SIGABRT, Aborted. #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. [Current thread is 1 (Thread 0x7f9140a68a80 (LWP 6786))] (gdb) bt full #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 set = {__val = {171515904, 0, 0, 0, 0, 140261709342601, 94745322873264, 67108868, 140261785854288, 0, 94745365252208, 94745321417623, 0, 94745348741304, 94745366391120, 94745365252128}} pid = <optimized out> tid = <optimized out> #1 0x00007f913db03f5d in __GI_abort () at abort.c:90 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {94745348741304, 94745366391120, 94745365252128, 140720405293760, 140720405293764, 12884901928, 94745363065648, 0, 7425099061155604736, 0, 94745363176736, 11, 67108868, 140261785854288, 7425099061155604736, 0}}, sa_flags = -1655605696, sa_restorer = 0x7ffc05c52cb0} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x0000562b9d50913a in OsAbort () No symbol table info available. #3 0x0000562b9d50ec53 in ?? () No symbol table info available. #4 0x0000562b9d50fa75 in FatalError () No symbol table info available. #5 0x0000562b9d39543f in ?? () No symbol table info available. #6 0x0000562b9d506cb1 in ?? () No symbol table info available. #7 0x0000562b9d4ffcbb in WaitForSomething () No symbol table info available. #8 0x0000562b9d4cb9f3 in ?? () No symbol table info available. #9 0x0000562b9d4cfc90 in ?? () No symbol table info available. #10 0x00007f913daec1c1 in __libc_start_main (main=0x562b9d394a60, argc=11, argv=0x7ffc05c53be8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc05c53bd8) at ../csu/libc-start.c:308 result = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 8252881868666068147, 94745321359984, 140720405298144, 0, 0, 2388897359761923251, 2449221155427998899}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffc05c53c48, 0x7f9140abc150}, data = {prev = 0x0, cleanup = 0x0, canceltype = 96812104}}} not_first_call = <optimized out> #11 0x0000562b9d394a9a in _start () No symbol table info available. Any idea what is going on here? ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: xwayland 2:1.19.5-0ubuntu2 ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13 Uname: Linux 4.13.0-25-generic x86_64 NonfreeKernelModules: zfs zunicode zavl zcommon znvpair .tmp.unity_support_test.0: ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CompizPlugins: [core,composite,opengl,imgjpeg,decor,mousepoll,move,compiztoolbox,regex,place,commands,imgpng,grid,gnomecompat,dbus,resize,screenshot,animation,session,fade,cube,workarounds,rotate,scale,unitymtgrabhandles,expo,unityshell] CompositorRunning: None CurrentDesktop: GNOME Date: Thu Jan 11 17:02:07 2018 DistUpgraded: Fresh install DistroCodename: artful DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo 2nd Generation Core Processor Family Integrated Graphics Controller (ThinkPad T520) [17aa:21cf] MachineType: LENOVO 4240CTO ProcKernelCmdLine: BOOT_IMAGE=/ROOT/ubuntu-15.04@/boot/vmlinuz-4.13.0-25-generic root=ZFS=rpool/ROOT/ubuntu-15.04 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/26/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 8AET64WW (1.44 ) dmi.board.asset.tag: Not Available dmi.board.name: 4240CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8AET64WW(1.44):bd07/26/2013:svnLENOVO:pn4240CTO:pvrThinkPadT520:rvnLENOVO:rn4240CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad T520 dmi.product.name: 4240CTO dmi.product.version: ThinkPad T520 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.83-1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~17.10.1 version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~17.10.1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 xserver.bootTime: Wed Dec 6 12:19:49 2017 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.19.5-0ubuntu2 ** Affects: xorg-server (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug artful ubuntu wayland-session -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1742739 Title: Xwayland crashes after unlocking screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1742739/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp