gdb `which Xorg` /var/lib/systemd/coredump/core.Xorg.42.6448cdc2272644f0a25242a1c2562d9f.13924.1528985488000000 GNU gdb (GDB) Fedora 8.1-15.fc28 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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 "i686-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... "/usr/bin/Xorg": not in executable format: File format not recognized [New LWP 13924] Reading symbols from /usr/libexec/Xorg...Reading symbols from /usr/lib/debug/usr/libexec/Xorg-1.19.6-8.fc28.i386.debug...done. done. warning: Ignoring non-absolute filename: Missing separate debuginfo for linux-gate.so.1 Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/c9/7ded8c8e365b02676d1e8256caebe9e1d4cc04 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/libthread_db.so.1". Core was generated by `/usr/libexec/Xorg vt1 -displayfd 3 -auth /run/user/42/gdm/Xauthority -backgroun'. Program terminated with signal SIGABRT, Aborted. #0 0xb7ee1d21 in __kernel_vsyscall () (gdb) quit [root@curie ~]# dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/c9/7ded8c8e365b02676d1e8256caebe9e1d4cc04 -y Last metadata expiration check: 0:03:11 ago on Thu 14 Jun 2018 10:17:49 AM EDT. ^[[FNo match for argument: /usr/lib/debug/.build-id/c9/7ded8c8e365b02676d1e8256caebe9e1d4cc04 Error: Unable to find a match [root@curie ~]# gdb `which Xorg` /var/lib/systemd/coredump/core.Xorg.42.6448cdc2272644f0a25242a1c2562d9f.13924.1528985488000000 GNU gdb (GDB) Fedora 8.1-15.fc28 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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 "i686-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... "/usr/bin/Xorg": not in executable format: File format not recognized [New LWP 13924] Reading symbols from /usr/libexec/Xorg...Reading symbols from /usr/lib/debug/usr/libexec/Xorg-1.19.6-8.fc28.i386.debug...done. done. warning: Ignoring non-absolute filename: Missing separate debuginfo for linux-gate.so.1 Try: dnf --enablerepo='*debug*' install /usr/lib/debug/.build-id/c9/7ded8c8e365b02676d1e8256caebe9e1d4cc04 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/libthread_db.so.1". Core was generated by `/usr/libexec/Xorg vt1 -displayfd 3 -auth /run/user/42/gdm/Xauthority -backgroun'. Program terminated with signal SIGABRT, Aborted. #0 0xb7ee1d21 in __kernel_vsyscall () (gdb) backtrace full #0 0xb7ee1d21 in __kernel_vsyscall () No symbol table info available. #1 0xb76eee52 in __libc_signal_restore_set (set=0xbf831e5c) at ../sysdeps/unix/sysv/linux/nptl-signals.h:80 resultvar = #2 __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:48 set = {__val = {171515904, 0 , 32, 0, 551, 3085279776, 1946241249, 0, 0, 1, 1, 3085289064, 3085879644, 3077389993, 134606143, 137048064, 0, 3213041552}} pid = tid = ret = 0 #3 0xb76d882f in __GI_abort () at abort.c:79 save_stage = 1 act = {__sigaction_handler = {sa_handler = 0xb7e5a220, sa_sigaction = 0xb7e5a220}, sa_mask = {__val = {1946241249, 0, 0, 1, 1, 0, 134570552, 137049648, 3085903896, 134570552, 3086006528, 3213041780, 3086006968, 3073567536, 1, 1, 0, 0, 1, 3086004156, 134564844, 3213041572, 103, 0, 3077334164, 0, 3085880541, 1, 137048064, 136323476, 3213041908, 137048064}}, sa_flags = -1209038976, sa_restorer = 0x0} sigs = {__val = {32, 0 }} #4 0x081ed409 in OsAbort () at utils.c:1361 No locals. #5 0x081f32a6 in AbortServer () at log.c:877 No locals. #6 0x081f3c84 in FatalError (f=0x8202194 "AddScreen/ScreenInit failed for driver %d\n") at log.c:1015 args = 0xbf8320f4 "" args2 = 0xbf8320f4 "" ---Type to continue, or q to quit--- beenhere = 1 #7 0x080bfcd0 in InitOutput (pScreenInfo=0x82ce660 , argc=13, argv=0xbf8322c4) at xf86Init.c:861 i = 0 j = k = scr_index = -1 modulelist = optionlist = 0x9654480 screenpix24 = pix24 = pix24From = pix24Fail = 0 autoconfig = sigio_blocked = 0 want_hw_access = configured_device = #8 0x0807b364 in dix_main (argc=13, argv=0xbf8322c4, envp=0xbf8322fc) at main.c:197 i = alwaysCheckForInput = {0, 1} #9 0x0806439f in main (argc=13, argv=0xbf8322c4, envp=0xbf8322fc) at stubmain.c:34 No locals.