Can you post the output of: sudo hdparm -I /dev/sdb or what ever sdN is if it changes?
Also, can you see if setting the cache off makes the bug go away? It can be done with: sudo hdparm -W0 /dev/sdc To confirm it is off, you can run: sudo hdparm -W /dev/sdc -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1366538 Title: Synchronisation/close /dev/sdX: i/o error on target host Status in linux package in Ubuntu: Triaged Status in linux source package in Trusty: Triaged Status in linux source package in Utopic: Triaged Status in linux source package in Vivid: Triaged Bug description: Ubuntu 14.04.1 x86-64 wanting to unmout a pata drive (usb attached), I get this (title) "Warning from libparted" when gparted launches. Same issue with another pc x86-64 Errors retries then ignore, shred /dev/sdi fails: shred: /dev/sdi : pass 1/2 (random)… shred: /dev/sdi : pass 1/2 (random)…231MiB/94GiB 0 % shred: /dev/sdi : failure of fdatasync: i/o error on target host I reached to shred the drive from a 12.04.4 i386 pc with no error. Sep 7 15:07:08 nux kernel: [261448.072475] usb 5-1: new high-speed USB device number 10 using xhci_hcd Sep 7 15:07:09 nux kernel: [261448.202999] usb 5-1: New USB device found, idVendor=04cf, idProduct=8818 Sep 7 15:07:09 nux kernel: [261448.203008] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Sep 7 15:07:09 nux kernel: [261448.203013] usb 5-1: Product: USB Mass Storage Device Sep 7 15:07:09 nux kernel: [261448.203018] usb 5-1: Manufacturer: Myson Century, Inc. Sep 7 15:07:09 nux kernel: [261448.205463] usb-storage 5-1:1.0: USB Mass Storage device detected Sep 7 15:07:09 nux kernel: [261448.205673] scsi20 : usb-storage 5-1:1.0 Sep 7 15:07:10 nux kernel: [261449.206849] scsi 20:0:0:0: Direct-Access HTS72101 0G9AT00 MCZO PQ: 0 ANSI: 0 CCS Sep 7 15:07:10 nux kernel: [261449.207763] sd 20:0:0:0: Attached scsi generic sg7 type 0 Sep 7 15:07:10 nux kernel: [261449.207901] sd 20:0:0:0: [sdi] 195371568 512-byte logical blocks: (100 GB/93.1 GiB) Sep 7 15:07:10 nux kernel: [261449.208068] sd 20:0:0:0: [sdi] Write Protect is off Sep 7 15:07:10 nux kernel: [261449.208074] sd 20:0:0:0: [sdi] Mode Sense: 00 14 00 00 Sep 7 15:07:10 nux kernel: [261449.208280] sd 20:0:0:0: [sdi] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Sep 7 15:07:10 nux kernel: [261449.555232] sdi: unknown partition table Sep 7 15:07:10 nux kernel: [261449.555926] sd 20:0:0:0: [sdi] Attached SCSI disk Sep 7 15:07:43 nux kernel: [261482.219026] end_request: critical target error, dev sdi, sector 0 Sep 7 15:07:52 nux kernel: [261492.015180] end_request: critical target error, dev sdi, sector 0 Sep 7 15:07:55 nux kernel: [261494.261159] end_request: critical target error, dev sdi, sector 0 Sep 7 15:16:23 nux kernel: [262003.027005] end_request: critical target error, dev sdi, sector 0 Sep 7 15:16:35 nux kernel: [262014.215352] end_request: critical target error, dev sdi, sector 0 Sep 7 15:16:35 nux kernel: [262014.859651] end_request: critical target error, dev sdi, sector 0 [EDIT: Once shreded, no error on the i386, but still same error on the 2 x86-64] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1366538/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
