https://bugzilla.kernel.org/show_bug.cgi?id=89511 --- Comment #2 from Jun Itou <itou_jun@xxxxxxxxxxx> --- (In reply to Alan from comment #1) > Are you configuration options for the two kernels exactly the same ? Yes. > Can you try with a more modern kernel base (3.16+) ? I did the following tries. A partition and the practice of the format are gone with ver.3.2.62. Each environment is the same. root@sv-server:~# uname -a Linux sv-server 3.18.0 #1 SMP Wed Dec 10 09:05:25 JST 2014 x86_64 GNU/Linux root@sv-server:~# mount /dev/sdb1 /mnt/usb1 mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so root@sv-server:~# dmesg [ 133.987321] usb 2-1: new high-speed USB device number 2 using ehci-pci [ 134.521663] usb 2-1: New USB device found, idVendor=04bb, idProduct=0109 [ 134.521668] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 134.521671] usb 2-1: Product: I-O DATA HDZ-UES [ 134.521672] usb 2-1: Manufacturer: I-O DATA DEVICE INC. [ 134.521674] usb 2-1: SerialNumber: 0000000075A7 [ 134.746148] usb-storage 2-1:1.0: USB Mass Storage device detected [ 134.746260] scsi host3: usb-storage 2-1:1.0 [ 134.746422] usbcore: registered new interface driver usb-storage [ 135.748525] scsi 3:0:0:0: Direct-Access I-O DATA HDZ-UE2.0TS 6706 PQ: 0 ANSI: 0 CCS [ 135.749165] sd 3:0:0:0: Attached scsi generic sg2 type 0 [ 135.752517] sd 3:0:0:0: [sdb] 3907092672 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 135.758532] sd 3:0:0:0: [sdb] Write Protect is off [ 135.758536] sd 3:0:0:0: [sdb] Mode Sense: 34 00 00 00 [ 135.763999] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 135.784529] sdb: sdb1 [ 135.801515] sd 3:0:0:0: [sdb] Attached SCSI disk [ 195.009482] blk_update_request: critical target error, dev sdb, sector 0 [ 195.009758] JBD2: recovery failed [ 195.009766] EXT4-fs (sdb1): error loading journal -- 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
