[Hyper-V] FileCopy data loss after fcopy finish (X86 Only) Ubuntu 14.10

[Chris Valean]

Please include this patch for the bug detailed below.
https://git.kernel.org/cgit/linux/kernel/git/gregkh/char-misc.git/commit/?h=char-misc-next&id=31d4ea1a093fcf668d5f95af44b8d41488bdb7ec

The hv_fcopy_daemon must also be recompiled with this header.

Description of problem:
after fcopy from the host to guest check it in guest,no data in the file

Version-Release number of selected component (if applicable):
Host: hyperv server 2012 R2
Guest VM: Ubuntu 14.10 (final release)

How reproducible:
100%

Steps to Reproduce:
1.input data in Test.txt（host）
2.install hypervfcopyd(guest)
3.service hypervfcopyd start(guest)
4.(host)C:\> Copy-VMFile "Test VM" -SourcePath "C:\Test.txt" -DestinationPath "/test" -CreateFullPath -FileSource Host(host)
5.check data in test.txt what fcopyed from host(guest)

Actual results:
all the data is lost

Expected results:
the same with the original file

Additional info:
- x64 builds are not affected
- this bug has been initially found and patched in a RHEL bug thread, details above are from it.

===
break-fix: bc5a5b02331a3175a5fca20a4beba249e573b672 31d4ea1a093fcf668d5f95af44b8d41488bdb7ec

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1401903

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Chris Valean (cvalean)]

Logs not required, status updated.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1401903

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.18.0-9.10

---------------
linux (3.18.0-9.10) vivid; urgency=low

  [ Colin Ian King ]

  * SAUCE: drivers/rtc/interface.c: ignore exprired times when enqueing new
    timers
    - LP: #1333569

  [ Joseph Salisbury ]

  * [Config] Enable CONFIG_N_GSM as module.
    - LP: #1404670

  [ K. Y. Srinivasan ]

  * SAUCE: storvsc: force SPC-3 compliance on win8 and win8 r2 hosts
    - LP: #1406867

  [ Leann Ogasawara ]

  * rebase to v3.18.2
  * Release Tracking Bug
    - LP: #1409794

  [ Upstream Kernel Changes ]

  * Drivers: hv: util: make struct hv_do_fcopy match Hyper-V host messages
    - LP: #1401903
  * rebase to v3.18.2
 -- Leann Ogasawara <email address hidden> Mon, 12 Jan 2015 08:53:12 -0800

[Brad Figg (brad-figg)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-utopic' to 'verification-done-utopic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.16.0-30.40

---------------
linux (3.16.0-30.40) utopic; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1409890

  [ Andy Whitcroft ]

  * Revert "SAUCE: scsi: hyper-v storsvc switch up to SPC-3"
  * [Packaging] uploadnum should be the remainder of the version
    - LP: #1407755

  [ K. Y. Srinivasan ]

  * SAUCE: storvsc: force SPC-3 compliance on win8 and win8 r2 hosts
    - LP: #1406867

  [ Upstream Kernel Changes ]

  * Revert "xhci: clear root port wake on bits if controller isn't wake-up
    capable"
    - LP: #1408697
  * KVM: PPC: BOOK3S: HV: CMA: Reserve cma region only in hypervisor mode
    - LP: #1400209
  * powerpc/powernv: Ignore smt-enabled on Power8 and later
    - LP: #1402141
  * net/mlx4_en: Add VXLAN ndo calls to the PF net device ops too
    - LP: #1407760
  * net/mlx4_core: Enable CQE/EQE stride support
    - LP: #1400127
  * net/mlx4_core: Cache line EQE size support
    - LP: #1400127
  * net/mlx4_en: Add mlx4_en_get_cqe helper
    - LP: #1400127
  * net/mlx4_core: Introduce mlx4_get_module_info for cable module info
    reading
    - LP: #1400127
  * ethtool, net/mlx4_en: Cable info, get_module_info/eeprom ethtool
    support
    - LP: #1400127
  * net/mlx4_core: Introduce ACCESS_REG CMD and eth_prot_ctrl dev cap
    - LP: #1400127
  * net/mlx4_core: Add ethernet backplane autoneg device capability
    - LP: #1400127
  * ethtool, net/mlx4_en: Add 100M, 20G, 56G speeds ethtool reporting
    support
    - LP: #1400127
  * net/mlx4_en: Use PTYS register to query ethtool settings
    - LP: #1400127
  * net/mlx4_en: Use PTYS register to set ethtool settings (Speed)
    - LP: #1400127
  * net/mlx4_en: Add support for setting rxvlan offload OFF/ON
    - LP: #1400127
  * net/mlx4_en: Add ethtool support for [rx|tx]vlan offload set to OFF/ON
    - LP: #1400127
  * net/mlx4_core: Prevent VF from changing port configuration
    - LP: #1400127
  * net/mlx4_en: mlx4_en_set_settings() always fails when autoneg is set
    - LP: #1400127
  * sparc64: Fix constraints on swab helpers.
    - LP: #1408697
  * inetdevice: fixed signed integer overflow
    - LP: #1408697
  * ipv4: Fix incorrect error code when adding an unreachable route
    - LP: #1408697
  * ieee802154: fix error handling in ieee802154fake_probe()
    - LP: #1408697
  * qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
    - LP: #1408697
  * bonding: fix curr_active_slave/carrier with loadbalance arp monitoring
    - LP: #1408697
  * pptp: fix stack info leak in pptp_getname()
    - LP: #1408697
  * ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg
    - LP: #1408697
  * net/mlx4_en: Advertize encapsulation offloads features only when VXLAN
    tunnel is set
    - LP: #1408697
  * target: Don't call TFO->write_pending if data_length == 0
    - LP: #1408697
  * vhost-scsi: Take configfs group dependency during
    VHOST_SCSI_SET_ENDPOINT
    - LP: #1408697
  * srp-target: Retry when QP creation fails with ENOMEM
    - LP: #1408697
  * ASoC: fsi: remove unsupported PAUSE flag
    - LP: #1408697
  * ASoC: rsnd: remove unsupported PAUSE flag
    - LP: #1408697
  * ib_isert: Add max_send_sge...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-lts-utopic - 3.16.0-30.40~14.04.1

---------------
linux-lts-utopic (3.16.0-30.40~14.04.1) trusty; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1410070

  [ Andy Whitcroft ]

  * Revert "SAUCE: scsi: hyper-v storsvc switch up to SPC-3"
  * [Packaging] uploadnum should be the remainder of the version
    - LP: #1407755

  [ K. Y. Srinivasan ]

  * SAUCE: storvsc: force SPC-3 compliance on win8 and win8 r2 hosts
    - LP: #1406867

  [ Upstream Kernel Changes ]

  * Revert "xhci: clear root port wake on bits if controller isn't wake-up
    capable"
    - LP: #1408697
  * KVM: PPC: BOOK3S: HV: CMA: Reserve cma region only in hypervisor mode
    - LP: #1400209
  * powerpc/powernv: Ignore smt-enabled on Power8 and later
    - LP: #1402141
  * net/mlx4_en: Add VXLAN ndo calls to the PF net device ops too
    - LP: #1407760
  * net/mlx4_core: Enable CQE/EQE stride support
    - LP: #1400127
  * net/mlx4_core: Cache line EQE size support
    - LP: #1400127
  * net/mlx4_en: Add mlx4_en_get_cqe helper
    - LP: #1400127
  * net/mlx4_core: Introduce mlx4_get_module_info for cable module info
    reading
    - LP: #1400127
  * ethtool, net/mlx4_en: Cable info, get_module_info/eeprom ethtool
    support
    - LP: #1400127
  * net/mlx4_core: Introduce ACCESS_REG CMD and eth_prot_ctrl dev cap
    - LP: #1400127
  * net/mlx4_core: Add ethernet backplane autoneg device capability
    - LP: #1400127
  * ethtool, net/mlx4_en: Add 100M, 20G, 56G speeds ethtool reporting
    support
    - LP: #1400127
  * net/mlx4_en: Use PTYS register to query ethtool settings
    - LP: #1400127
  * net/mlx4_en: Use PTYS register to set ethtool settings (Speed)
    - LP: #1400127
  * net/mlx4_en: Add support for setting rxvlan offload OFF/ON
    - LP: #1400127
  * net/mlx4_en: Add ethtool support for [rx|tx]vlan offload set to OFF/ON
    - LP: #1400127
  * net/mlx4_core: Prevent VF from changing port configuration
    - LP: #1400127
  * net/mlx4_en: mlx4_en_set_settings() always fails when autoneg is set
    - LP: #1400127
  * sparc64: Fix constraints on swab helpers.
    - LP: #1408697
  * inetdevice: fixed signed integer overflow
    - LP: #1408697
  * ipv4: Fix incorrect error code when adding an unreachable route
    - LP: #1408697
  * ieee802154: fix error handling in ieee802154fake_probe()
    - LP: #1408697
  * qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
    - LP: #1408697
  * bonding: fix curr_active_slave/carrier with loadbalance arp monitoring
    - LP: #1408697
  * pptp: fix stack info leak in pptp_getname()
    - LP: #1408697
  * ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg
    - LP: #1408697
  * net/mlx4_en: Advertize encapsulation offloads features only when VXLAN
    tunnel is set
    - LP: #1408697
  * target: Don't call TFO->write_pending if data_length == 0
    - LP: #1408697
  * vhost-scsi: Take configfs group dependency during
    VHOST_SCSI_SET_ENDPOINT
    - LP: #1408697
  * srp-target: Retry when QP creation fails with ENOMEM
    - LP: #1408697
  * ASoC: fsi: remove unsupported PAUSE flag
    - LP: #1408697
  * ASoC: rsnd: remove unsupported PAUSE flag
    - LP: #...