file system i o errors

File system I/O errors on Windows often stem from boundary issues between virtualization layers and native file operations. A recent WSL2 kernel update (6.18.35.1) specifically addressed a virtio-fs bug where oversized DMA mappings could trigger -EIO errors during file operations, highlighting how file system I/O errors can occur at the interface between Windows-hosted virtualization and Linux file semantics. This type of error is not a feature regression but an infrastructure-level problem that requires precise kernel fixes. For Windows users running WSL2, file system I/O errors may appear during heavy file transfers or when crossing the Windows-Linux file boundary, and keeping the WSL kernel updated is a practical mitigation.