Hi all, Update: 1) Corruptions are always there when suspending rootfs on USB. 2) Corruptions are silent, FS marked as clean, that's what causes Kernel panic when it tries to mount corrupted FS marked as clean. 3) Issue caused probably by partially synced disk cache. 4) All tested Kernels affected (Lucid, Maverick, Natty, Natty-Mainline-Daily, Fedora14, Redhat6). 5) Kernels above 2.6.38 manages to mark FS as dirty during failed mount attempt, so virtually corruption got fixed after 2 reboots but loss is there. 6) Bug affects all filesystems, but severe for EXT4(data loss but fixable with another system without automount) and BTRFS (unfixable due to failed mounttime fixes and there is no way to fix manually).
** Summary changed: - [All releases] Suspending with rootfs (mainly ext4) on USB, cause silent corruptions which panics kernel on mount attempt. Making system unbootable. + [All releases] Suspending with rootfs on USB, cause silent corruptions cause kernel panic on mount attempt, data loss and making system unbootable. ** Summary changed: - [All releases] Suspending with rootfs on USB, cause silent corruptions cause kernel panic on mount attempt, data loss and making system unbootable. + [All releases] Suspending with rootfs on USB, causes silent corruptions, kernel panic on mount attempt, data loss and leaving system unbootable. ** Also affects: linux (Fedora) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/706795 Title: [All releases] Suspending with rootfs on USB, causes silent corruptions, kernel panic on mount attempt, data loss and leaving system unbootable. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs