On Mon, 27 May 2024 11:22:02 +0100 Jack Beckitt-Marshall <j...@pictura.co.uk> wrote:
When I perform certain actions on my GNOME desktop, such as using the Location bar (Ctrl+L) in Nautilus, clicking on System Information in GNOME Control Center, or click Fonts in GNOME Tweaks, the programs close with a segmentation fault. Here is the output from dmesg. [ 1659.826530] nautilus[19533]: segfault at 41 ip 00007f782c224d5d sp 00007fffa9cbf770 error 4 in libX11.so.6.4.0[7f782c216000+8d000] likely on CPU 7 (core 7, socket 0) [ 1659.826554] Code: ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 54 49 89 d4 55 48 89 f5 53 48 8b 87 68 09 00 00 48 89 fb 48 85 c0 74 02 <ff> 10 48 89 ee 4c 89 e2 48 89 df e8 63 36 ff ff 89 c5 48 8b 83 68
Using Wayland and GNOME 44.9.
Debian Release: trixie/sid
Hello Jack, I am not maintainer of libx11-6, just tried to collect some more information. From the "Code" line the crash happens in function XGetWindowAttributes. It looks strange this function gets called while using a Wayland session. This gtk issue [1] shows similar calls into XGetWindowAttributes caused by some library libim-scim.so from package scim-gtk-immodule. Please check if you have this installed. If it is needed it might be possbile to check if this still happens with a Gnome X11 session, if not needed does it happens when this package is uninstalled? For exact results a backtrace of the crash would still be good. Maybe you can install the package systemd-coredump and retrieve from e.g. `journalctl -b0 --no-pager` of a crash with a few lines before and afterwards. [2] [1] https://gitlab.gnome.org/GNOME/gtk/-/issues/5472 [2] https://wiki.debian.org/HowToGetABacktrace Kind regards, Bernhard
[ 1659.826530] nautilus[19533]: segfault at 41 ip 00007f782c224d5d sp 00007fffa9cbf770 error 4 in libX11.so.6.4.0[7f782c216000+8d000] likely on CPU 7 (core 7, socket 0) [ 1659.826554] Code: ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 54 49 89 d4 55 48 89 f5 53 48 8b 87 68 09 00 00 48 89 fb 48 85 c0 74 02 <ff> 10 48 89 ee 4c 89 e2 48 89 df e8 63 36 ff ff 89 c5 48 8b 83 68 [ 1666.674595] nautilus[19622]: segfault at ff0000 ip 00007fd182c0fd5d sp 00007fff51cb2fa0 error 4 in libX11.so.6.4.0[7fd182c01000+8d000] likely on CPU 2 (core 2, socket 0) [ 1666.674608] Code: ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 54 49 89 d4 55 48 89 f5 53 48 8b 87 68 09 00 00 48 89 fb 48 85 c0 74 02 <ff> 10 48 89 ee 4c 89 e2 48 89 df e8 63 36 ff ff 89 c5 48 8b 83 68 https://wiki.debian.org/InterpretingKernelOutputAtProcessCrash 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 "ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 54 49 89 d4 55 48 89 f5 53 48 8b 87 68 09 00 00 48 89 fb 48 85 c0 74 02 <ff> 10 48 89 ee 4c 89 e2 48 89 df e8 63 36 ff ff 89 c5 48 8b 83 68" \ | sed 's/[<>]//g' | sed 's/ /, 0x/g' # Trixie/testing amd64 qemu VM 2024-06-18 apt update apt dist-upgrade apt install --no-install-recommends gnome apt install gdb gdb -q --pid $(pgrep nautilus) pipe info share | grep -i x11 find /b 0x00007fd8fcd4e970, 0x00007fd8fcdd881e, 0xff, 0x66, 0x66, 0x2e, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xf3, 0x0f, 0x1e, 0xfa, 0x41, 0x54, 0x49, 0x89, 0xd4, 0x55, 0x48, 0x89, 0xf5, 0x53, 0x48, 0x8b, 0x87, 0x68, 0x09, 0x00, 0x00, 0x48, 0x89, 0xfb, 0x48, 0x85, 0xc0, 0x74, 0x02, 0xff, 0x10, 0x48, 0x89, 0xee, 0x4c, 0x89, 0xe2, 0x48, 0x89, 0xdf, 0xe8, 0x63, 0x36, 0xff, 0xff, 0x89, 0xc5, 0x48, 0x8b, 0x83, 0x68 benutzer@debian:~$ gdb -q --pid $(pgrep nautilus) Attaching to process 2298 [New LWP 2349] [New LWP 2351] [New LWP 2352] [New LWP 2373] [New LWP 2383] [New LWP 2384] [New LWP 2529] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". 0x00007fd8fd40947f in __GI___poll (fds=0x5562fdf47790, nfds=2, timeout=24377) at ../sysdeps/unix/sysv/linux/poll.c:29 29 ../sysdeps/unix/sysv/linux/poll.c: Datei oder Verzeichnis nicht gefunden. (gdb) pipe info share | grep -i x11 0x00007fd8fcd4e970 0x00007fd8fcdd881e Yes (*) /lib/x86_64-linux-gnu/libX11.so.6 0x00007fd8f8002040 0x00007fd8f800211f Yes (*) /lib/x86_64-linux-gnu/libX11-xcb.so.1 (gdb) find /b 0x00007fd8fcd4e970, 0x00007fd8fcdd881e, 0xff, 0x66, 0x66, 0x2e, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0xf3, 0x0f, 0x1e, 0xfa, 0x41, 0x54, 0x49, 0x89, 0xd4, 0x55, 0x48, 0x89, 0xf5, 0x53, 0x48, 0x8b, 0x87, 0x68, 0x09, 0x00, 0x00, 0x48, 0x89, 0xfb, 0x48, 0x85, 0xc0, 0x74, 0x02, 0xff, 0x10, 0x48, 0x89, 0xee, 0x4c, 0x89, 0xe2, 0x48, 0x89, 0xdf, 0xe8, 0x63, 0x36, 0xff, 0xff, 0x89, 0xc5, 0x48, 0x8b, 0x83, 0x68 0x7fd8fcd5ad33 <_XGetWindowAttributes+483> 1 pattern found. (gdb) b * (0x7fd8fcd5ad33 + 42) Breakpoint 1 at 0x7fd8fcd5ad5d (gdb) info b Num Type Disp Enb Address What 1 breakpoint keep y 0x00007fd8fcd5ad5d <XGetWindowAttributes+29> (gdb) disassemble /r 0x7fd8fcd5ad33, 0x7fd8fcd5ad33+62 Dump of assembler code from 0x7fd8fcd5ad33 to 0x7fd8fcd5ad71: 0x00007fd8fcd5ad33 <_XGetWindowAttributes+483>: ff 66 66 jmp *0x66(%rsi) 0x00007fd8fcd5ad36: 2e 0f 1f 84 00 00 00 00 00 cs nopl 0x0(%rax,%rax,1) 0x00007fd8fcd5ad3f: 90 nop 0x00007fd8fcd5ad40 <XGetWindowAttributes+0>: f3 0f 1e fa endbr64 0x00007fd8fcd5ad44 <XGetWindowAttributes+4>: 41 54 push %r12 0x00007fd8fcd5ad46 <XGetWindowAttributes+6>: 49 89 d4 mov %rdx,%r12 0x00007fd8fcd5ad49 <XGetWindowAttributes+9>: 55 push %rbp 0x00007fd8fcd5ad4a <XGetWindowAttributes+10>: 48 89 f5 mov %rsi,%rbp 0x00007fd8fcd5ad4d <XGetWindowAttributes+13>: 53 push %rbx 0x00007fd8fcd5ad4e <XGetWindowAttributes+14>: 48 8b 87 68 09 00 00 mov 0x968(%rdi),%rax 0x00007fd8fcd5ad55 <XGetWindowAttributes+21>: 48 89 fb mov %rdi,%rbx 0x00007fd8fcd5ad58 <XGetWindowAttributes+24>: 48 85 c0 test %rax,%rax 0x00007fd8fcd5ad5b <XGetWindowAttributes+27>: 74 02 je 0x7fd8fcd5ad5f <XGetWindowAttributes+31> 0x00007fd8fcd5ad5d <XGetWindowAttributes+29>: ff 10 call *(%rax) <<<<<<<< 0x00007fd8fcd5ad5f <XGetWindowAttributes+31>: 48 89 ee mov %rbp,%rsi 0x00007fd8fcd5ad62 <XGetWindowAttributes+34>: 4c 89 e2 mov %r12,%rdx 0x00007fd8fcd5ad65 <XGetWindowAttributes+37>: 48 89 df mov %rbx,%rdi 0x00007fd8fcd5ad68 <XGetWindowAttributes+40>: e8 63 36 ff ff call 0x7fd8fcd4e3d0 <_XGetWindowAttributes@plt> 0x00007fd8fcd5ad6d <XGetWindowAttributes+45>: 89 c5 mov %eax,%ebp 0x00007fd8fcd5ad6f <XGetWindowAttributes+47>: 48 8b 83 68 09 00 00 mov 0x968(%rbx),%rax End of assembler dump. (gdb) https://gitlab.gnome.org/GNOME/gtk/-/issues/5472
