Is your root partition an ext4 fs?
This sounds very similar to bug 595489.
(My guess is that once the flush task hangs, write accesses to the file system will eventually become ... very unhappy, but I'm no expert. I've only experienced this on a non-root FS.)
Is your root partition an ext4 fs?
This sounds very similar to bug 595489.
(My guess is that once the flush task hangs, write accesses to the file system will eventually become ... very unhappy, but I'm no expert. I've only experienced this on a non-root FS.)