`make test` fails on Linux (Ubuntu20.04) ext4 with mounted ntfs

I have a dual-boot setup, where my Ubuntu 20.04 is on a ext4 FS and I have a data partition that is ntfs (for compat with Windows).
When I check out and build cpython on the data partition a bunch of tests fail with an OSError.
It seems to be related to the fact that the test suite creates the filenames as bytes assuming "utf-8" but ntfs uses "utf-16".

I have attached the log of the test run, which shows the failing tests.

P.S.: I also have encrypted the data partition with Veracrypt but I don't expect this to be relevant for this issue (but one never knows)
test_log.txt

cc @encukou

从随附的 test_log.txt 以及在 Ubuntu 20.04 上使用位于 NTFS 分区的 CPython checkout 运行 make test 时失败的测试开始。将这些失败与 ext4 上的 checkout 进行比较，并确定涉及哪些文件系统假设。当受影响的测试用例在所报告的 NTFS 设置下不再失败，且不会导致 ext4 运行出现回归时，即视为完成。