Hi all Since I moved my internal HD into a USB dock externally and mount the ext4 filesystem on it, I regularly get the following errors after it has been mounted for a while (see timecode). It doesn't seem to matter which recent kernel I use. [1048401.773270] EXT4-fs (sde8): mounted filesystem with writeback data mode. Opts: (null) [1048702.736011] EXT4-fs (sde8): error count: 3 [1048702.736016] EXT4-fs (sde8): initial error at 1289053677: ext4_journal_start_sb:251 [1048702.736018] EXT4-fs (sde8): last error at 1289080948: ext4_put_super:719 I've forced an fs check numerous times but nothing comes up. There was only one occasion where the filesystem mounted RO but that was months ago and has since been fine. This does not appear to cause any actual problems and happens it seems at _precisely_ the moment the hard drive decides to go into sleep mode as I hear it spin down. hdparm is unable to extract details from the hard drive when it is plugged into the usb dock. The options used on this are as follows: tune2fs 1.41.12 (17-May-2010) Filesystem volume name: backup Last mounted on: /media/backup Filesystem UUID: 4eff5eb7-89fb-4db1-8cfd-f09db598a00b Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: journal_data_writeback Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 22593536 Block count: 90355576 Reserved block count: 0 Free blocks: 30330219 Free inodes: 21828725 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 1002 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Flex block group size: 16 Filesystem created: Fri Jun 19 22:38:36 2009 Last mount time: Tue Dec 28 09:36:34 2010 Last write time: Tue Dec 28 09:36:34 2010 Mount count: 8 Maximum mount count: -1 Last checked: Sun Dec 19 21:50:05 2010 Check interval: 0 (<none>) Lifetime writes: 1992 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: 5cdfe619-0de5-4bcd-85d2-5fa5f4f13da7 Journal backup: inode blocks lsusb Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 008: ID 046d:c70a Logitech, Inc. MX5000 Cordless Desktop Bus 002 Device 007: ID 046d:c70e Logitech, Inc. MX1000 Bluetooth Laser Mouse Bus 002 Device 006: ID 0424:2228 Standard Microsystems Corp. 9-in-2 Card Reader Bus 002 Device 005: ID 046d:0b02 Logitech, Inc. BT Mini-Receiver (HID proxy mode) Bus 002 Device 004: ID 04b8:012c Seiko Epson Corp. Perfection V350 (GT-F700) Bus 002 Device 003: ID 0424:2602 Standard Microsystems Corp. USB 2.0 Hub Bus 002 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 1759:5000 LucidPort Technology, Inc. Bus 001 Device 002: ID 1058:1100 Western Digital Technologies, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub lspci 00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02) 00:01.0 PCI bridge: Intel Corporation 82P965/G965 PCI Express Root Port (rev 02) 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02) 00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02) 00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2) 00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02) 00:1f.2 SATA controller: Intel Corporation 82801HB (ICH8) 4 port SATA AHCI Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02) 01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9400 GT] (rev a1) 02:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02) 02:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) 05:02.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 05:02.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) Pointers would be appreciated, even if it's just "it's harmless, ignore it". Thanks, Con -- -ck -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
