Hi, We've got two reports [1] [2] (could be the same person) which suggest that ext4 may change page content while the page is under write(). The particular problem here the case when ext4 is on the zram device. zram compresses every page written to it, so if the page content can be modified concurrently with zram's compression then we can't really use zram with ext4. Can you take a look please? [1] https://bugzilla.kernel.org/show_bug.cgi?id=219548 [2] https://lore.kernel.org/linux-kernel/20241129115735.136033-1-baicaiaichibaicai@xxxxxxxxx
