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[Launchpad Bug Tracker <1369976@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1369976

Title:
  [Hyper-V] Fiber Channel Disk Remote I/O error

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  System details:
  3.16.0-14-generic #20-Ubuntu SMP Sat Sep 6 23:53:03 UTC 2014 i686 i686 i686 GNU/Linux
  Ubuntu 3.16.0-14.20-generic 3.16.2
  Description:    Ubuntu Utopic Unicorn (development branch)
  Release:        14.10
  Ubuntu 140.10 32bit 11 sept daily build.

  
  Partitioning a fiber channel disk ( dev/sdc  in this example) outputs the following error:
  ​
  The partition table has been altered.
  Calling ioctl() to re-read partition table.
  /dev/sdc: close device failed: Remote I/O error

  And dmesg outputs as follows:

  [  252.811026]  sdc: sdc1
  [  252.818117] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  262.822050] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  262.822834] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  272.826196] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  272.826525] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  272.826530] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  282.830372] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  282.830999] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  292.834227] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  292.834686] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  302.838349] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  302.838648] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  302.838653] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  312.842407] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  312.842497] end_request: critical target error, dev sdc, sector 0
  [  312.850527] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  312.913987] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  312.969034] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  312.969207] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  350.280834] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  350.295070] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  350.295486] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  350.297265] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  355.886817] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  360.588873] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  370.590883] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  370.595090] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  380.598923] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  380.603236] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  390.607027] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  390.611269] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  400.615049] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  400.619307] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  410.623210] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  410.627399] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  420.631351] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4
  [  420.631464] end_request: critical target error, dev sdc, sector 0
  [  420.641937] hv_storvsc vmbus_0_15: cmd 0x35 scsi status 0x0 srb status 0x4
  [  430.643287] hv_storvsc vmbus_0_15: cmd 0x0 scsi status 0x0 srb status 0x4

  And yet I can mount, read/write on the disk ( after creating a
  filesystem ).

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