Hello ng,
On Wed, 22 Nov 2023 22:47:01 -0300 ng <konoh...@yahoo.com> wrote:
[18950.426861] Thunar[3027]: segfault at 0 ip 00005615a96c98cc sp 00007ffd2dbd7320 error 4 in thunar[5615a9640000+92000] likely on CPU 7 (core 3, socket 0) [18950.426895] Code: f3 48 83 ec 38 64 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 48 c7 44 24 20 00 00 00 00 48 85 f6 0f 84 77 02 00 00 48 8b 06 <48> 39 10 0f 84 f1 01 00 00 4c 8b bf 28 01 00 00 4c 39 fe 0f 84 cb
This lines point to following source location: thunar/thunar-window.c, line 4000 https://sources.debian.org/src/thunar/4.18.4-1/thunar/thunar-window.c/#L4000 3999 /* if the view already has the correct type then just return */ 4000 if (view != NULL && G_TYPE_FROM_INSTANCE (view) == view_type) 4001 return; Unfortunately this might yet not be enough for the maintainer to fix the issue. Following link contains a few pointers how to get a backtrace of a crash: https://wiki.debian.org/HowToGetABacktrace Kind regards, Bernhard
https://wiki.debian.org/InterpretingKernelOutputAtProcessCrash [18950.426861] Thunar[3027]: segfault at 0 ip 00005615a96c98cc sp 00007ffd2dbd7320 error 4 in thunar[5615a9640000+92000] likely on CPU 7 (core 3, socket 0) [18950.426895] Code: f3 48 83 ec 38 64 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 48 c7 44 24 20 00 00 00 00 48 85 f6 0f 84 77 02 00 00 48 8b 06 <48> 39 10 0f 84 f1 01 00 00 4c 8b bf 28 01 00 00 4c 39 fe 0f 84 cb error 4 == 0b00000100: * bit 0 == 0: no page found * bit 1 == 0: read access * bit 2 == 1: user-mode access . echo -n "find /b ..., ..., 0x" && \ echo "f3 48 83 ec 38 64 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 48 c7 44 24 20 00 00 00 00 48 85 f6 0f 84 77 02 00 00 48 8b 06 <48> 39 10 0f 84 f1 01 00 00 4c 8b bf 28 01 00 00 4c 39 fe 0f 84 cb" \ | sed 's/[<>]//g' | sed 's/ /, 0x/g' # Bookworm/stable amd64 qemu VM 2024-04-09 apt update apt install gdb thunar thunar-dbgsym gdb -q set width 0 set pagination off file /usr/bin/thunar tb main run pipe info target | grep "\.text" find /b 0x000055555557fdb0, 0x000055555560bad9, 0xf3, 0x48, 0x83, 0xec, 0x38, 0x64, 0x48, 0x8b, 0x04, 0x25, 0x28, 0x00, 0x00, 0x00, 0x48, 0x89, 0x44, 0x24, 0x28, 0x31, 0xc0, 0x48, 0xc7, 0x44, 0x24, 0x20, 0x00, 0x00, 0x00, 0x00, 0x48, 0x85, 0xf6, 0x0f, 0x84, 0x77, 0x02, 0x00, 0x00, 0x48, 0x8b, 0x06, 0x48, 0x39, 0x10, 0x0f, 0x84, 0xf1, 0x01, 0x00, 0x00, 0x4c, 0x8b, 0xbf, 0x28, 0x01, 0x00, 0x00, 0x4c, 0x39, 0xfe, 0x0f, 0x84, 0xcb b * (0x5555556038a2 + 42) info b disassemble /r 0x5555556038a2, 0x5555556038a2 + 62 benutzer@debian:~$ gdb -q (gdb) set width 0 (gdb) set pagination off (gdb) file /usr/bin/thunar Reading symbols from /usr/bin/thunar... Reading symbols from /usr/lib/debug/.build-id/1c/0053bee14d3fb731923319e68ac183a810d9db.debug... (gdb) tb main Temporary breakpoint 1 at 0x2bdd0: file ./thunar/main.c, line 49. (gdb) run Starting program: /usr/bin/thunar [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Temporary breakpoint 1, main (argc=1, argv=0x7fffffffe4d8) at ./thunar/main.c:49 49 ./thunar/main.c: Datei oder Verzeichnis nicht gefunden. (gdb) pipe info target | grep "\.text" 0x000055555557fdb0 - 0x000055555560bad9 is .text ... (gdb) find /b 0x000055555557fdb0, 0x000055555560bad9, 0xf3, 0x48, 0x83, 0xec, 0x38, 0x64, 0x48, 0x8b, 0x04, 0x25, 0x28, 0x00, 0x00, 0x00, 0x48, 0x89, 0x44, 0x24, 0x28, 0x31, 0xc0, 0x48, 0xc7, 0x44, 0x24, 0x20, 0x00, 0x00, 0x00, 0x00, 0x48, 0x85, 0xf6, 0x0f, 0x84, 0x77, 0x02, 0x00, 0x00, 0x48, 0x8b, 0x06, 0x48, 0x39, 0x10, 0x0f, 0x84, 0xf1, 0x01, 0x00, 0x00, 0x4c, 0x8b, 0xbf, 0x28, 0x01, 0x00, 0x00, 0x4c, 0x39, 0xfe, 0x0f, 0x84, 0xcb 0x5555556038a2 <thunar_window_replace_view+18> 1 pattern found. (gdb) b * (0x5555556038a2 + 42) Breakpoint 2 at 0x5555556038cc: file ./thunar/thunar-window.c, line 4000. (gdb) info b Num Type Disp Enb Address What 2 breakpoint keep y 0x00005555556038cc in thunar_window_replace_view at ./thunar/thunar-window.c:4000 (gdb) disassemble /r 0x5555556038a2, 0x5555556038a2 + 62 Dump of assembler code from 0x5555556038a2 to 0x5555556038e0: 0x00005555556038a2 <thunar_window_replace_view+18>: f3 48 83 ec 38 repz sub $0x38,%rsp 0x00005555556038a7 <thunar_window_replace_view+23>: 64 48 8b 04 25 28 00 00 00 mov %fs:0x28,%rax 0x00005555556038b0 <thunar_window_replace_view+32>: 48 89 44 24 28 mov %rax,0x28(%rsp) 0x00005555556038b5 <thunar_window_replace_view+37>: 31 c0 xor %eax,%eax 0x00005555556038b7 <thunar_window_replace_view+39>: 48 c7 44 24 20 00 00 00 00 movq $0x0,0x20(%rsp) 0x00005555556038c0 <thunar_window_replace_view+48>: 48 85 f6 test %rsi,%rsi 0x00005555556038c3 <thunar_window_replace_view+51>: 0f 84 77 02 00 00 je 0x555555603b40 <thunar_window_replace_view+688> 0x00005555556038c9 <thunar_window_replace_view+57>: 48 8b 06 mov (%rsi),%rax 0x00005555556038cc <thunar_window_replace_view+60>: 48 39 10 cmp %rdx,(%rax) <<< 0x00005555556038cf <thunar_window_replace_view+63>: 0f 84 f1 01 00 00 je 0x555555603ac6 <thunar_window_replace_view+566> 0x00005555556038d5 <thunar_window_replace_view+69>: 4c 8b bf 28 01 00 00 mov 0x128(%rdi),%r15 0x00005555556038dc <thunar_window_replace_view+76>: 4c 39 fe cmp %r15,%rsi 0x00005555556038df <thunar_window_replace_view+79>: 0f 84 cb 02 00 00 je 0x555555603bb0 <thunar_window_replace_view+800> End of assembler dump. (gdb) https://sources.debian.org/src/thunar/4.18.4-1/thunar/thunar-window.c/#L4000 3999 /* if the view already has the correct type then just return */ 4000 if (view != NULL && G_TYPE_FROM_INSTANCE (view) == view_type) 4001 return; https://gitlab.xfce.org/xfce/thunar/-/blob/master/thunar/thunar-window.c#L4084
