https://bugzilla.kernel.org/show_bug.cgi?id=114821 Bug ID: 114821 Summary: Frequent and recurring ext4 "bad header invalid magic" errors on a healthy drive Product: File System Version: 2.5 Kernel Version: 3.18.5+ Hardware: ARM OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: dse.ssd@xxxxxxxxx Regression: No Recurring ext4 "bad header" errors are reported for a healthy, few months old external USB drive (WD MyBook 1230) connected to a Raspberry Pi running Raspbian 7, kernel 3.18.5+. The drive was working fine previously when formatted in NTFS, SMART has no errors logged, drive passes short and long SMART self-tests as well as manufacturer diagnostic tests (WD Data Lifeguard). Another external USB drive (a WD MyBook 1140), formatted in NTFS shows no problems when connected to the same machine. The specific error is: ext4_ext_check_inode:495: inode #1523: comm ls: pblk 0 bad header/extent: invalid magic - magic 0, entries 0, max 0(0), depth 0(0) The errors are produced whenever some certain files are accessed and the hard drive produces a distinct (and rather unsettling) clunk every few seconds, which sounds like a head load/unload or something, but the files seem to be read without error. Running fsck reports and fixes some errors and makes the ext4 partition clean again, but the same errors are produced when the files are read again. The offending files can be moved to another device and back to the same location to stop the error from recurring, but it soon appears when accessing other files. -- You are receiving this mail because: You are watching the assignee of the bug. -- 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
