（2022-12-09更新）Ubuntu 20.04 Meld，thunar/nemo/nautilus 启动崩溃排查记录
2022-12-09
最近几天事情有了新的进展，本来是遇到了 thunar打开某些文件夹就崩溃的问题，一通排查和发问后定位到了原因，和WPS Office的xdgmime配置有关；
卸载WPS Office可以不再崩溃，用永中Office替代一下；还不会解决，想上博客记录另一件事的时候发现了过去写过这篇，一看现象还一样……更新一下
这次遇到的问题是 thunar打开某些文件夹崩溃，此外Nemo和Nautilus一打开就崩溃，而且Firefox一打开下载对话框也崩溃
由于我一开始以为崩溃是gio的，我把排查记录整理了下发到了GLib去……那边的大佬帮忙做了分析，非常感谢。
Crash due to infinite recursion in MIME subclassing (#2833) · Issues · GNOME / GLib · GitLab
issue单好像要登录才能看，这里抄一份排查记录如下（英文）
Crash due to infinite recursion in MIME subclassing
Base info
If you’re reporting a bug make sure to list:
which version of GLib are you using? (2.72.4-0ubuntu1) which operating system are you using? (See section My computer info) the necessary steps to reproduce the issue (See below) the expected outcome (don't crash) a description of the behavior (what behavior?) a small, self-contained example exhibiting the behavior (See below)
If the issue includes a crash, you should also include:
the eventual warnings printed on the terminal (No warings, just[1] 156410 segmentation fault (core dumped) thunar) a backtrace, obtained with tools such as GDB or LLDB (See below)
My computer info
!w /usr/share > neofetch .-:/++oooo++/:-. xys@xys-OptiPlex-3046 `:/oooooooooooooooooo/-` --------------------- -/oooooooooooooooooooo+ooo/- OS: Ubuntu Cinnamon 22.04.1 LTS x86_64 .+oooooooooooooooooo+/-`.ooooo+. Host: OptiPlex 3046 :oooooooooooo+//:://++:. .ooooooo: Kernel: 5.15.0-56-generic /oooooooooo+o:`.----.``./+/oooooooo/ Uptime: 5 hours, 19 mins /ooooooooo+. +ooooooooo+:``/ooooooooo/ Packages: 4632 (dpkg), 13 (snap) .ooooooooo: .+ooooooooooooo- -ooooooooo. Shell: zsh 5.8.1 /oooooo/o+ .ooooooo:`+oo+ooo- :oooooooo/ Resolution: 1920x1080 ooo+:. .o: :ooooo:` .+/. ./o+:/ooooooooo DE: Cinnamon oooo/-`.o: :ooo/` `/+. ./.:ooooooooo WM: Mutter (Muffin) /oooooo+o+``++. `:+- /oooooooo/ WM Theme: Mcata-light (Mcata-light) .ooooooooo/`` -+:` :ooooooooo. Theme: Mcata-light [GTK2/3] /ooooooooo+--+/` .+ooooooooo/ Icons: McMojave-circle [GTK2/3] /ooooooooooo+.` `.:++:oooooooo/ Terminal: konsole :oooooooooooooo++++oo+-` .ooooooo: Terminal Font: MesloLGS NF 9 .+ooooooooooooooooooo+:..ooooo+. CPU: Intel i5-6500 (4) @ 3.600GHz -/oooooooooooooooooooooooo/- GPU: Intel HD Graphics 530 `-/oooooooooooooooooo/:` Memory: 7836MiB / 15902MiB .-:/++oooo++/:-.
Description
When I open thunar/nemo/nautilus on Ubuntu(22.04), all of them crash. What's more, when I download something on Firefox(107.0.1), firefox crashes while opening dialog Save As... at $HOME/Download.
thunar
I use gdb and find out that they crash at libgio-2.0.so.0.
Thread 1 "thunar" received signal SIGSEGV, Segmentation fault. 0x00007ffff70aa81a in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0 (gdb) bt #0 0x00007ffff70aa81a in () at /lib/x86_64-linux-gnu/libgio-2.0.so.0 #1 0x00007ffff70aac28 in () at /lib/x86_64-linux-gnu/libgio-2.0.so.0 #2 0x00007ffff70aae63 in () at /lib/x86_64-linux-gnu/libgio-2.0.so.0 #3 0x00007ffff70aae63 in () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
I try to build glib with glib_debug=enabled, and the detail shows:
Thread 1 "thunar" received signal SIGSEGV, Segmentation fault. 0x00007ffff709fc4d in cache_alias_lookup (alias=alias@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow") at ../../gio/xdgmime/xdgmimecache.c:333 333 cmp = strcmp (ptr, alias); (gdb) bt #0 0x00007ffff709fc4d in cache_alias_lookup (alias=alias@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow") at ../../gio/xdgmime/xdgmimecache.c:333 #1 0x00007ffff70a06f2 in __gio_xdg_cache_unalias_mime_type (mime=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow") at ../../gio/xdgmime/xdgmimecache.c:988 #2 __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:911 #3 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1e2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #4 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #5 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1e2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #6 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #7 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1e2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #8 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #9 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1e2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #10 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1cfe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971 #11 0x00007ffff70a093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffecb1e2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffecb1cfc4 "application/zip") at ../../gio/xdgmime/xdgmimecache.c:971
naltilus
Thread 3 "pool-org.gnome." received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7ffff2942640 (LWP 77914)] __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffe00512b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffe004f758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:911 911 umime = _xdg_mime_cache_unalias_mime_type (mime); (gdb) bt #0 __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffe00512b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffe004f758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:911 #1 0x00007ffff707093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffe004ffe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffe004f758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #2 0x00007ffff707093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffe00512b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffe004f758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #3 0x00007ffff707093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffe004ffe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7fffe004f758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #4 0x00007ffff707093b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7fffe00512b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7fffe004f758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971
nemo
Thread 11 "pool-nemo" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffe37fe640 (LWP 78345)] __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff121b2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:911 911 umime = _xdg_mime_cache_unalias_mime_type (mime); (gdb) bt #0 __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff121b2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:911 #1 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff1219fe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #2 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff121b2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #3 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff1219fe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #4 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff121b2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #5 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff1219fe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #6 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff121b2b8 "application/vnd.openxmlformats-officedocument.presentationml.presentation", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971 #7 0x00007ffff714d93b in __gio_xdg_cache_mime_type_subclass (mime=mime@entry=0x7ffff1219fe0 "application/vnd.openxmlformats-officedocument.presentationml.slideshow", base=base@entry=0x7ffff1219758 "application/x-ole-storage") at ../../gio/xdgmime/xdgmimecache.c:971
Apps
the MIME in stacktrace seems to show that the bug maybe related to my office environment. I have install these office apps:
~/Download > dpkg -l | grep -i office ii catdoc 1:0.95-5 amd64 text extractor for MS-Office files rc deepin.com.qq.office:i386 2.0.0deepin4 i386 Tencent TIM Client on Deepin Wine ii libreoffice-base-core 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- shared library rc libreoffice-calc 1:7.3.6-0ubuntu0.22.04.1 amd64 office productivity suite -- spreadsheet ii libreoffice-common 1:7.3.7-0ubuntu0.22.04.1 all office productivity suite -- arch-independent files ii libreoffice-core 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- arch-dependent files rc libreoffice-draw 1:7.3.6-0ubuntu0.22.04.1 amd64 office productivity suite -- drawing rc libreoffice-impress 1:7.3.6-0ubuntu0.22.04.1 amd64 office productivity suite -- presentation ii libreoffice-kf5 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- KDE Frameworks 5 integration ii libreoffice-math 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- equation editor ii libreoffice-plasma 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- some Plasma integration ii libreoffice-qt5 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- Qt 5 integration ii libreoffice-style-breeze 1:7.3.7-0ubuntu0.22.04.1 all office productivity suite -- Breeze symbol style ii libreoffice-style-colibre 1:7.3.7-0ubuntu0.22.04.1 all office productivity suite -- colibre symbol style rc libreoffice-style-tango 1:7.3.6-0ubuntu0.22.04.1 all transitional package for Tango symbol style ii libreoffice-writer 1:7.3.7-0ubuntu0.22.04.1 amd64 office productivity suite -- word processor ii libuno-cppu3 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment -- CPPU public library ii libuno-cppuhelpergcc3-3 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment -- CPPU helper library ii libuno-purpenvhelpergcc3-3 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment -- "purpose environment" helper ii libuno-sal3 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment -- SAL public library ii libuno-salhelpergcc3-3 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment -- SAL helpers for C++ library ii mythes-en-us 1:7.2.0-2 all English (USA) Thesaurus for LibreOffice ii openoffice.org-hyphenation 0.10 all Hyphenation patterns for OpenOffice.org - dummy transitional package ii uno-libs-private 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment -- private libraries used by public ones ii ure 1:7.3.7-0ubuntu0.22.04.1 amd64 LibreOffice UNO runtime environment ii wps-office 11.1.0.11664 amd64 WPS Office, is an office productivity suite. ii yozo-office 8.0.1331.101ZH.S1 amd64 Yozo Office -- Fully Functional Office Suite ~/Download > snap list 名称 版本 修订版本 追踪 发布者 注记 bare 1.0 5 latest/stable canonical✓ base chromium-ffmpeg 0.1 30 latest/stable canonical✓ - core 16-2.57.6 14399 latest/stable canonical✓ core core18 20221103 2632 latest/stable canonical✓ base core20 20221123 1738 latest/stable canonical✓ base cups 2.4.2-4 836 latest/stable openprinting✓ - fontvuer 1.0.4 18 latest/stable tommysouta - gnome-3-38-2004 0+git.6f39565 119 latest/stable canonical✓ - gtk-common-themes 0.1-81-g442e511 1535 latest/stable canonical✓ - gtk2-common-themes 0.1 13 latest/stable canonical✓ - snapd 2.57.6 17883 latest/stable canonical✓ snapd wps-2019-snap 11.2.0.9505 2 latest/stable cyrpaut -
Other info
When I open thunar, thunar shows home directory, and it doesn't crash. Then I open
~/Downloaddirectory, it crashes. I think there are*.doc*&*.ppt*files in~/Download/, maybe they are the reason. So I make a dir~/Download/docsand move*.doc*&*.ppt*files into the new direcotry. Then thunar runs normally at~/Downloadbut crashes at~/Download/docs
I try to remove yozo-office package and wps-2019-snap snap package, and open thunar again, it still crashes at
~/Download/docs
Activity
pwithnall · Maintainer
This looks quite similar to #1875, but the fix for that is already in the version of GLib you’re using. Try removing wps-office and see if the crashes stop. From some quick googling, it looks like wps-office still has some malformed xdg-mime data.
imxys · Author
Thanks a lot! I remove wps-office, and all of thunar/nemo/nautilus run normally now.
I reinstall wps-office and thunar crashes again.
I'm not sure where the malformed xdg-mime data is, I'll try to send an email to wps team with this issue and fix the config file by myself later.
pwithnall · Maintainer
OK, that’s pinned the error down a bit. I don’t think fixing the recursion in GLib will be easy --- really the issue is that WPS Office is installing invalid MIME data.
Can you please file an issue against WPS Office about fixing their MIME data so that ```application/vnd.openxmlformats-officedocument.presentationml.presentationandapplication/vnd.openxmlformats-officedocument.presentationml.slideshow` are not defined as being recursive subtypes of each other?
感觉自己废话有点多什么都要记。。。算了
2022-07-07
用Ubuntu 20.04 KDE之前meld还好好的，突然打开就崩溃了
15:09:39 ~ > meld
[1] 63483 segmentation fault (core dumped) meld
开始时候还不知道哪里看崩溃栈，用gdb直接运行meld，后面找到/var/log/apport.log记录，崩溃文件放在了/var/lib/apport/coredump
gdb看的话是一个gio的死循环
08:48:36 ~/my-projects/meld #3.21.2 ?4 > gdb python3 /var/lib/apport/coredump/core._usr_bin_python3_8.1000.f1f44689-a2e5-46fc-a8cd-e4793d49b851.2750166.16280638 4s
GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Type "show copying" and "show warranty" for details.
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Reading symbols from python3...
(No debugging symbols found in python3)
warning: core file may not match specified executable file.
[New LWP 2750166]
[New LWP 2750176]
[New LWP 2750177]
[New LWP 2750175]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `python3 ./bin/meld'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007ff76a44be59 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
[Current thread is 1 (Thread 0x7ff76b4a6740 (LWP 2750166))]
(gdb) bt
#0 0x00007ff76a44be59 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#1 0x00007ff76a44ca62 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#2 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#3 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#17 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#18 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#19 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#20 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#21 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#22 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#23 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#24 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#25 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#26 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#27 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#28 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#29 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#30 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#31 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#32 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#33 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#34 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#35 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#36 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#37 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#38 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#39 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#40 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#41 0x00007ff76a44ccc4 in () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
--Type <RET> for more, q to quit, c to continue without paging--q
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7ff76b4a6740 (LWP 2750166) 0x00007ff76a44be59 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
2 Thread 0x7ff765c3c700 (LWP 2750176) 0x00007ff76b78499f in __GI___poll (fds=0x233ed10, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
3 Thread 0x7ff76543b700 (LWP 2750177) 0x00007ff76b78499f in __GI___poll (fds=0x7ff758017100, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
4 Thread 0x7ff76643d700 (LWP 2750175) 0x00007ff76b78499f in __GI___poll (fds=0x233d2c0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
(gdb) q
看不懂啊
然后尝试重装libglib2.0-0:amd64，重装meld都不行
最开始还看了/var/log/apport.log里面写
ERROR: apport (pid 2583320) Wed Jul 6 20:58:49 2022: called for pid 2583316, signal 11, core limit 0, dump mode 1
ERROR: apport (pid 2583320) Wed Jul 6 20:58:49 2022: script: /usr/bin/meld, interpreted by /usr/bin/python3.8 (command line "/usr/bin/python3 /usr/bin/meld")
ERROR: apport (pid 2583320) Wed Jul 6 20:58:50 2022: gdbus call error: Error: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
ERROR: apport (pid 2583320) Wed Jul 6 20:58:50 2022: debug: session gdbus call:
ERROR: apport (pid 2583320) Wed Jul 6 20:58:50 2022: apport: report /var/crash/_usr_bin_meld.1000.crash already exists and unseen, skipping to avoid disk usage DoS
ERROR: apport (pid 2583382) Wed Jul 6 20:58:59 2022: called for pid 2583376, signal 11, core limit 0, dump mode 1
ERROR: apport (pid 2583382) Wed Jul 6 20:58:59 2022: script: /usr/bin/meld, interpreted by /usr/bin/python3.8 (command line "/usr/bin/python3 /usr/bin/meld")
还以为为啥org.gnome.SessionManager没有会不会是这个导致的，但是KDE可能确实没这玩意
后来看了哪个帖子，说不一定是这个问题，说用strace命令去跟系统调用，也看不懂
还尝试git clone了项目源码，更新了meson和ninja来编译
然后用
PYTHONPATH=`pwd`/out/lib/python/dist-packages python3 ./bin/meld
运行，结果也崩溃了
突然想到/usr/bin/meld打开是个python脚本，能不能换一个python运行一下
我原来安装的是python3.8，换了python3.9，报错依赖库gtk+3.20以上……烦
原来博客园有 Markdown 实时预览编辑器了，好耶
