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
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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.
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