I had the same problem running Kernel 3.5.0-23. After downgrading to 3.5.0-19 the system is running fine for two weeks now.
There have been a number of ext4 changes between these version: * ext4: fix unjournaled inode bitmap modification (LP: #1091251) * ext4: remove erroneous ext4_superblock_csum_set() in update_backups() (LP: #1084539) * ext4: race-condition protection for ext4_convert_unwritten_extents_endio (LP: #1084539) * ext4: fix metadata checksum calculation for the superblock (LP: #1084539) * ext4: Checksum the block bitmap properly with bigalloc enabled (LP: #1084539) * ext4: Avoid underflow in ext4_trim_fs() (LP: #1084539) Could any of these changes cause the problem? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1063354 Title: Sudden Read-Only Filesystems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063354/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
