天气转凉开始升级系统，结果桌面都崩了，一看祸首是 pango kernel: gnome-shell2218475: segfault at 38 ip 00007fce3bc2bb6e sp 00007fffdeef0a80 error 4 in libpangoft2-1.0.so.0.5700.0bb6e,7fce3bc28000+e000 likely on CPU 6 (core 6, socket 1) 刚升级到 1.57.0，马上降级到 1.56.4，仍然崩溃，加 nostrip 重新编译，看下 bt (gdb) bt 0 0x00007f25377e3b6e in  […]