# gdb /usr/bin/Xorg GNU gdb (GDB) 7.9-alt4 (ALT) Copyright (C) 2015 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 "aarch64-alt-linux". 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"... Reading symbols from /usr/bin/Xorg...Missing separate debuginfo for /usr/bin/Xorg Try to install the hash file /usr/lib/debug/.build-id/5f/5cdf007c57382cfdb03d1772684293db50d02e.debug (no debugging symbols found)...done. (gdb) run Starting program: /usr/bin/Xorg Missing separate debuginfo for /lib64/ld-linux-aarch64.so.1 Try to install the hash file /usr/lib/debug/.build-id/17/860125904d929bcf7fefe1d681e6d22240e21b.debug Missing separate debuginfo for /lib64/libudev.so.1 Try to install the hash file /usr/lib/debug/.build-id/dd/81207ff691a862d65e829f99cc21d8e18253c9.debug Missing separate debuginfo for /lib64/libselinux.so.1 Try to install the hash file /usr/lib/debug/.build-id/cf/6996b81559a5387e649162de7657bf5e79417c.debug Missing separate debuginfo for /lib64/libcrypto.so.10 Try to install the hash file /usr/lib/debug/.build-id/7f/5f676a8f8883743941acb53e106c4736e28752.debug Missing separate debuginfo for /lib64/libdl.so.2 Try to install the hash file /usr/lib/debug/.build-id/ce/e09397eef032d43cf4de6d97a28cc753c7cfeb.debug Missing separate debuginfo for /usr/lib64/libpciaccess.so.0 Try to install the hash file /usr/lib/debug/.build-id/90/c0984e812b2f6a6f9a27802b621871986c4eab.debug Missing separate debuginfo for /usr/lib64/libdrm.so.2 Try to install the hash file /usr/lib/debug/.build-id/95/3980a10567a41c6bd6848c6bf0f6735c9ab536.debug Missing separate debuginfo for /usr/lib64/libpixman-1.so.0 Try to install the hash file /usr/lib/debug/.build-id/01/1ced43ff0aa286476159cbddeff803d4917abd.debug Missing separate debuginfo for /usr/lib64/libXfont2.so.2 Try to install the hash file /usr/lib/debug/.build-id/da/6d4be558e593d517ca6474d766dfbe5f987f9a.debug Missing separate debuginfo for /usr/lib64/libXau.so.6 Try to install the hash file /usr/lib/debug/.build-id/cf/31ff6a24d3fcb4ab1a2c343d1fad44a480d2be.debug Missing separate debuginfo for /usr/lib64/libxshmfence.so.1 Try to install the hash file /usr/lib/debug/.build-id/5a/ff399deac25ad97701401cf7290b89254b7b2e.debug Missing separate debuginfo for /usr/lib64/libXdmcp.so.6 Try to install the hash file /usr/lib/debug/.build-id/fc/1f13536aae00eddd0d1b2ba9c97fc4f85fcd56.debug Missing separate debuginfo for /lib64/libaudit.so.1 Try to install the hash file /usr/lib/debug/.build-id/73/7deb865492962e7ff88212d79e3517e265fbf9.debug Missing separate debuginfo for /lib64/libm.so.6 Try to install the hash file /usr/lib/debug/.build-id/99/53382492d924004496e85d46a3b4d796b60c5a.debug Missing separate debuginfo for /lib64/libpthread.so.0 Try to install the hash file /usr/lib/debug/.build-id/1f/459e61d898cecd150ad3b561ec2279fc777418.debug [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Missing separate debuginfo for /lib64/libc.so.6 Try to install the hash file /usr/lib/debug/.build-id/18/6f632e8df517885bb85c681113dd15efe3f659.debug Missing separate debuginfo for /lib64/libmount.so.1 Try to install the hash file /usr/lib/debug/.build-id/3a/7548bcfa3804ef2cf26a43771e31da28135a9b.debug Missing separate debuginfo for /lib64/libpcre.so.3 Try to install the hash file /usr/lib/debug/.build-id/71/5d255d85a2db4dc8b5c0ac2caed6611d36b0a0.debug Missing separate debuginfo for /lib64/libz.so.1 Try to install the hash file /usr/lib/debug/.build-id/0d/cc5e11f80f9c95cdeffb097a345153a08fcab2.debug Missing separate debuginfo for /lib64/libbz2.so.1 Try to install the hash file /usr/lib/debug/.build-id/11/d72607a101cc3f27332e51052fa38bd829c47a.debug Missing separate debuginfo for /usr/lib64/libfontenc.so.1 Try to install the hash file /usr/lib/debug/.build-id/54/0164d6f154b93910725042d584267d50199914.debug Missing separate debuginfo for /usr/lib64/libfreetype.so.6 Try to install the hash file /usr/lib/debug/.build-id/9e/9f6fb1489050e2d13df8aee514dde683996f26.debug Missing separate debuginfo for /lib64/libblkid.so.1 Try to install the hash file /usr/lib/debug/.build-id/0e/ad78777d80e37f55d6e0a6e0587a3580a5676b.debug Missing separate debuginfo for /usr/lib64/libpng16.so.16 Try to install the hash file /usr/lib/debug/.build-id/b9/df333f850fbb0a2f6eac186a6bdbc38bd1f375.debug Missing separate debuginfo for /usr/lib64/libharfbuzz.so.0 Try to install the hash file /usr/lib/debug/.build-id/44/54fd3b6d4d587e3a4bc51c68331c9bc4d479c6.debug Missing separate debuginfo for /lib64/libuuid.so.1 Try to install the hash file /usr/lib/debug/.build-id/cf/3e66581416eed998e4266de880074f894d9641.debug Missing separate debuginfo for /lib64/libglib-2.0.so.0 Try to install the hash file /usr/lib/debug/.build-id/1f/177e2e72e7047bcfa4d7c9f50d88cb2a4f140a.debug Missing separate debuginfo for /usr/lib64/libgraphite2.so.3 Try to install the hash file /usr/lib/debug/.build-id/1b/3459b9d04dfe0ad9b3e929fa6db811eacc5e1c.debug Missing separate debuginfo for /lib64/libgcc_s.so.1 Try to install the hash file /usr/lib/debug/.build-id/61/a96d6fe72e3a3c29833e01c5637bb882da81d9.debug X.Org X Server 1.20.0 X Protocol Version 11, Revision 0 Build Operating System: ALT Sisyphus (unstable) (sisyphus) aarch64 Current Operating System: Linux rock64 4.4.132 #5 SMP Thu Jul 26 15:17:12 CEST 2018 aarch64 Kernel command line: ro root=LABEL=linux-root rootwait rootfstype=ext4 panic=10 init=/sbin/init ethaddr=2a:a2:a8:03:04:44 eth1addr=2a:a2:a8:03:04:64 serial=471a711076714aa video=640x480 drm_kms_helper.edid_firmware=HDMI-A-1:edid/canox.bin Build Date: 14 June 2018 07:56:24AM Current version of pixman: 0.34.0 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: Thu Jan 21 09:53:42 2016 (==) Using config directory: "/etc/X11/xorg.conf.d" (==) Using system config directory "/usr/share/X11/xorg.conf.d" Detaching after fork from child process 1919. Missing separate debuginfo for /usr/lib64/X11/modules/extensions/libglx.so Try to install the hash file /usr/lib/debug/.build-id/58/f43b458dac9cda6f391e165402867397ceea8d.debug Missing separate debuginfo for /usr/lib64/libGL.so.1 Try to install the hash file /usr/lib/debug/.build-id/6d/1d6be641e3f4c9fcb277c384091b2ac21ba627.debug Missing separate debuginfo for /lib64/libexpat.so.1 Try to install the hash file /usr/lib/debug/.build-id/c1/10f8a9717adc2f70a7cc4706f1f01e4c571b80.debug Missing separate debuginfo for /usr/lib64/libxcb-dri3.so.0 Try to install the hash file /usr/lib/debug/.build-id/65/b3211bf2a48cca2242b2925675bada4a657b2f.debug Missing separate debuginfo for /usr/lib64/libxcb-present.so.0 Try to install the hash file /usr/lib/debug/.build-id/d2/ea6076cbc23460934c66e939ef809ef46c7976.debug Missing separate debuginfo for /usr/lib64/libxcb-sync.so.1 Try to install the hash file /usr/lib/debug/.build-id/8d/acf451a0aa3778c52c3892295682b82a002f86.debug Missing separate debuginfo for /usr/lib64/libglapi.so.0 Try to install the hash file /usr/lib/debug/.build-id/68/6b907bab8317ab18e5bf79763442655dea3ff5.debug Missing separate debuginfo for /usr/lib64/libXext.so.6 Try to install the hash file /usr/lib/debug/.build-id/89/e754e11ce915f1636535928164eecd5914006c.debug Missing separate debuginfo for /usr/lib64/libXdamage.so.1 Try to install the hash file /usr/lib/debug/.build-id/b9/498f444b7a99d61a29c38babeb236bf77a7f46.debug Missing separate debuginfo for /usr/lib64/libXfixes.so.3 Try to install the hash file /usr/lib/debug/.build-id/e7/438b280a3345c129b3335cb72a284fda2ece13.debug Missing separate debuginfo for /usr/lib64/libX11-xcb.so.1 Try to install the hash file /usr/lib/debug/.build-id/6c/a5f5358f8a7d1205b9dfe394006a4f3456ba11.debug Missing separate debuginfo for /usr/lib64/libX11.so.6 Try to install the hash file /usr/lib/debug/.build-id/77/005d80460741d582f461b10db2405eef051e11.debug Missing separate debuginfo for /usr/lib64/libxcb.so.1 Try to install the hash file /usr/lib/debug/.build-id/f3/3d5577f95689b324f2d4fb30e530dd35202c0b.debug Missing separate debuginfo for /usr/lib64/libxcb-glx.so.0 Try to install the hash file /usr/lib/debug/.build-id/76/0ed30057916eb1c5cd08b0ec00d4fe014b281d.debug Missing separate debuginfo for /usr/lib64/libxcb-dri2.so.0 Try to install the hash file /usr/lib/debug/.build-id/c7/225cd9fdf6896e6db8ed10c0efadf15c152f73.debug Missing separate debuginfo for /usr/lib64/libXxf86vm.so.1 Try to install the hash file /usr/lib/debug/.build-id/1e/e5fdbcd265455e3715c9bf3f99b0b6fdbb4931.debug [tcsetpgrp failed in terminal_inferior: Operation not permitted] Missing separate debuginfo for /usr/lib64/X11/modules/libexa.so Try to install the hash file /usr/lib/debug/.build-id/d5/a20c0f1405d34c9dd0c3a0bd21a410a9c5d392.debug Missing separate debuginfo for /usr/lib64/X11/modules/libfb.so Try to install the hash file /usr/lib/debug/.build-id/04/2fef588d4d6b5af723931af2644e17c5c63fce.debug Program received signal SIGSEGV, Segmentation fault. 0x00000000004fe59c in RRCrtcIsLeased () (gdb) bt #0 0x00000000004fe59c in RRCrtcIsLeased () #1 0x00000000004b3860 in xf86CrtcSetModeTransform () #2 0x00000000004b3e64 in xf86SetDesiredModes () #3 0x0000007f87598af8 in ?? () from /usr/lib64/X11/modules/drivers/armsoc_drv.so #4 0x0000007f87599848 in ?? () from /usr/lib64/X11/modules/drivers/armsoc_drv.so #5 0x0000000000444fa8 in AddScreen () #6 0x000000000048407c in InitOutput () #7 0x0000000000448c54 in ?? () #8 0x0000007f87f18820 in __libc_start_main () from /lib64/libc.so.6 #9 0x0000000000432a90 in _start () Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb) list No symbol table is loaded. Use the "file" command. (gdb) disassemble Dump of assembler code for function RRCrtcIsLeased: 0x00000000004fe598 <+0>: adrp x2, 0x63a000 => 0x00000000004fe59c <+4>: ldr x4, [x0,#8] 0x00000000004fe5a0 <+8>: ldr x2, [x2,#3008] 0x00000000004fe5a4 <+12>: ldp w1, w3, [x2] 0x00000000004fe5a8 <+16>: ldr w2, [x2,#8] 0x00000000004fe5ac <+20>: cbz w3, 0x4fe628 0x00000000004fe5b0 <+24>: cbz w2, 0x4fe638 0x00000000004fe5b4 <+28>: ldr x2, [x4,#976] 0x00000000004fe5b8 <+32>: add x1, x2, w1, sxtw 0x00000000004fe5bc <+36>: ldr x4, [x1,#352] 0x00000000004fe5c0 <+40>: add x5, x1, #0x160 0x00000000004fe5c4 <+44>: cmp x4, x5 0x00000000004fe5c8 <+48>: b.eq 0x4fe618 0x00000000004fe5cc <+52>: ldr w2, [x4,#40] 0x00000000004fe5d0 <+56>: cmp w2, #0x0 0x00000000004fe5d4 <+60>: b.le 0x4fe60c 0x00000000004fe5d8 <+64>: ldr x1, [x4,#48] 0x00000000004fe5dc <+68>: ldr x3, [x1] 0x00000000004fe5e0 <+72>: cmp x0, x3 0x00000000004fe5e4 <+76>: b.eq 0x4fe620 0x00000000004fe5e8 <+80>: add x1, x1, #0x8 ---Type to continue, or q to quit---q Quit (gdb) i r x0 0x0 0 x1 0x3686a910 914794768 x2 0x63a000 6529024 x3 0x3686a3a0 914793376 x4 0x0 0 x5 0x0 0 x6 0x0 0 x7 0x64298c 6564236 x8 0x40 64 x9 0x0 0 x10 0x101010101010101 72340172838076673 x11 0x0 0 x12 0x100000000 4294967296 x13 0x0 0 x14 0x4113e0 4264928 x15 0x403880 4208768 x16 0x4b3cc8 4930760 x17 0x7f875b12e8 547731739368 x18 0x7cd 1997 x19 0x3686a1b0 914792880 x20 0x3686a488 914793608 x21 0x368685e0 914785760 ---Type to continue, or q to quit--- x22 0x0 0 x23 0x0 0 x24 0x1 1 x25 0x0 0 x26 0x0 0 x27 0x0 0 x28 0x3686a3a0 914793376 x29 0x7fe3c04f10 549281877776 x30 0x4b3860 4929632 sp 0x7fe3c04f10 0x7fe3c04f10 pc 0x4fe59c 0x4fe59c cpsr 0x60000000 1610612736 fpsr 0x10 16 fpcr 0x0 0 (gdb) detach