https://bugzilla.kernel.org/show_bug.cgi?id=186551 Bug ID: 186551 Summary: mkfs.ext4 tries to discard sector beyond the end of the device Product: File System Version: 2.5 Kernel Version: 3.10.0-327.36.3.el7.x86_64 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: tom@xxxxxxxxxx Regression: No 800GB Intel P3700 SSD has 195,352,576 4k sectors, but mkfs.ext4 tried to discard sector 1,530,955,776 that is beyond the end of the device. # mkfs.ext4 /dev/nvme0n1p1 mke2fs 1.42.9 (28-Dec-2013) Discarding device blocks: failed - Input/output error Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 48840704 inodes, 195352576 blocks 9767628 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2344615936 5962 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done [61825.159172] blk_update_request: I/O error, dev nvme0n1, sector 1530955776 # parted /dev/nvme0n1 "unit s" "print" Model: Unknown (unknown) Disk /dev/nvme0n1: 195353046s Sector size (logical/physical): 4096B/4096B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 256s 195352831s 195352576s primary -- 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