Your comment sparked my curiosity about this bug, which I vaguely remember reading about a few years ago. Apparently, it wasn't a bug in the EXT4 filesystem, bu

Your comment sparked my curiosity about this bug, which I vaguely remember reading about a few years ago. Apparently, it wasn't a bug in the EXT4 filesystem, but rather in a kernel component called blk-mq. Source: https://www.phoronix.com/news/Linux-4.19-4.20-BLK-MQ-Fix https://www.phoronix.com/news/Linux-4.19-4.20-BLK-MQ-Fix