1. Release Notes for Unbreakable Enterprise Kernel Release 4 Update 7
  2. Known Issues
  3. ext4 Issues

ext4 Issues

The following are known ext4 issues:

  • System hangs on unmount after an append to a file with negative i_size

    While it is invalid for a file system to load an inode with a negative i_size, it is possible to create a file like this and append to it. However, doing so causes an integer overflow in the routine's underlying writeback, resulting in the kernel locking up. (Bug ID 25565527)

  • Hang occurs during dynamic expansion of inode size

    A hang occurs with the ext4 file system during the dynamic expansion of inode size when using the inode's i_extra_size field. (Bug ID 25718971)