`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

從隨附的 test_log.txt 以及在 Ubuntu 20.04 上使用位於 NTFS 分割區的 CPython checkout 執行 make test 時失敗的測試開始。將這些失敗與 ext4 上的 checkout 進行比較，並判斷涉及哪些檔案系統假設。當受影響的測試案例在所回報的 NTFS 設定下不再失敗，且不會導致 ext4 執行出現回歸時，即視為完成。