If one specifies journal_checksum as a mount option for an ext4 rootfs, it should show up in the output of 'mount', yes? I'm not seeing it. My grub line: kernel /boot/vmlinuz-2.6.30-gentoo-r1 rw vga=0x31B video=vesafb:1280x1024-24,mtrr:3,ywrap hpet=force fastboot quiet forcedeth.msi=1 forcedeth.msix=1 forcedeth.dma_64bit=1 root=/dev/md3 rootfstype=ext4 rootflags=journal_checksum and the 'mount' output: rootfs on / type rootfs (rw) /dev/root on / type ext4 (rw,relatime,barrier=1,data=writeback) Is this related to barriers failing? From dmesg: JBD: barrier-based sync failed on md3:8 - disabling barriers Thanks -- Douglas J Hunley - doug@xxxxxxxxxxxxxxxxx http://douglasjhunley.com Twitter: @hunleyd -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html