Ubuntu系统下安装docker报错segment fault,然后输入任何命令都显示segment fault 5C

如图,输入任何命令都返回segment fault,只好断开连接。
这种情况如何处理?
使用apt安装docker时报错内容是

Processing triggers for libc-bin (2.23-0ubuntu11) ...
Processing triggers for ureadahead (0.100.0-19.1) ...
dpkg: error processing package ureadahead (--unpack):
 subprocess installed post-installation script was killed by signal (Segmentation fault)
Processing triggers for systemd (229-4ubuntu21.22) ...
dpkg: error processing package systemd (--unpack):
 subprocess installed post-installation script was killed by signal (Segmentation fault)
dpkg: error: error executing hook 'if { test "$DPKG_HOOK_ACTION" = add-architecture || test "$DPKG_HOOK_ACTION" = remove-architecture; } && test -x /usr/share/pkg-config-dpkghook; then /usr/share/pkg-config-dpkghook update; fi', exit code 11
E: Sub-process /usr/bin/dpkg returned an error code (2)

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