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[Bug 1298192] Re: hyper-v: Unable to take backups of Generation 2 VMs

 

This bug was fixed in the package linux - 3.13.0-20.42

---------------
linux (3.13.0-20.42) trusty; urgency=low

  [ Adam Conrad ]

  * [Packaging] Set bootloader and loader on ppc64el to grub

  [ Andy Whitcroft ]

  * rebase to v3.13.7
  * [Config] updateconfigs following rebase to v3.13.7
  * cloud-tools -- pull in init scripts for Hyper-V daemons
  * cloud-tools -- detect Hyper-V VM to avoid starting
  * cloud-tools -- update IF_NAME to DEVICE in hv_* scripts
    - LP: #1295401
  * [Config] cloud-tools -- ensure we force older hv-kvp-daemon-init off
  * [Config] fix up Breaks/Replaces on linux-cloud-tools-common to fix upgrades

  [ Emmanuel Grumbach ]

  * SAUCE: (no-up) iwlwifi: mvm: disable uAPSD due to bugs in the
firmware

  [ James Bottomley ]

  * SAUCE: (no-up) fix our current target reap infrastructure
    - LP: #1283604
  * SAUCE: (no-up) dual scan thread bug fix
    - LP: #1283604

  [ K. Y. Srinivasan ]

  * SAUCE: (no-up) Tools: hv: vssdaemon: Ignore VFAT mounts during the
    Freeze operation
    - LP: #1298192

  [ Paolo Pisati ]

  * [Config] disable HW_RANDOM_EXYNOS, USB_DWC3_EXYNOS,
    PHY_EXYNOS_MIPI_VIDEO
    - LP: #1294353
  * [Config] armhf: generic: AHCI_IMX=y, SERIAL_FSL_LPUART=m
    - LP: #1294951
  * [Config] armhf: generic: MFD_TI_AM335X_TSCADC and USB_DWC3_OMAP = m
    - LP: #1294962

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1298585
  * [Config] ignore.modules
  * SAUCE: i2c-cpm: Add missing includes for powerpc
  * [Config] CONFIG_ABX500_CORE=y for ppc64el
  * [Config] CONFIG_ALX=m for powerpc
  * [Config] CONFIG_ACENIC_OMIT_TIGON_I=n for ppc64el
  * [Config] CONFIG_ACORN_PARTITION_*=n for ppc64el
  * [Config] CONFIG_ANDROID=n for powerpc
  * [Config] CONFIG_ASYNC_RAID6_TEST=m for ppc64el
  * [Config] CONFIG_BIG_KEYS=y for ppc64el
  * [Config] CONFIG_BLK_DEV_INTEGRITY=y for ppc64el
  * [Config] CONFIG_BSD_PROCESS_ACCT=y for ppc64el
  * [Config] CONFIG_BLK_DEV_SR_VENDOR=n for ppc64el
  * [Config] CONFIG_CFG80211=m for ppc64el
  * [Config] CONFIG_CHARGER_BQ24190=m for powerpc
  * [Config] CONFIG_CHARGER_BQ24735=m for powerpc
  * [Config] CONFIG_EXPERT=y for ppc64el
  * [Config] CONFIG_ATA_SFF=y on ppc64el
  * [Config] CONFIG_ATA_GENERIC=y for ppc64el, powerpc
  * [Config] CONFIG_CHR_DEV_ST=m for ppc64el
  * [Config] CONFIG_CHECKPOINT_RESTORE=y for ppc64el
  * [Config] CONFIG_CHELSIO_T1_1G=y for ppc64el
  * [Config] CONFIG_CHR_DEV_OSST=m for ppc64el
  * [Config] CONFIG_CHR_DEV_SCH=m for ppc64el
  * [Config] CONFIG_CPU_FREQ_STAT=y for powerpc
  * [Config] CONFIG_DDR=y for ppc64el
  * [Config] CONFIG_DEBUG_BUGVERBOSE=y for powerpc
  * [Config] CONFIG_EXT4_USE_FOR_EXT23=y for powerpc, ppc64el
  * [Config] CONFIG_E100=m, CONFIG_E1000=m, CONFIG_E1000E=m for ppc64el
  * [Config] CONFIG_EZX_PCAP=n for all arches
  * [Config] CONFIG_DYNAMIC_DEBUG=y for powerpc
  * [Config] CONFIG_ENABLE_MUST_CHECK=n for ppc64el
  * [Config] CONFIG_ENABLE_WARN_DEPRECATED=n for ppc64el
  * [Config] CONFIG_FB_3DFX=m for all arches
  * [Config] CONFIG_FB_MATROX=m for ppc64el
  * [Config] CONFIG_FB_RADEON=m for ppc64el
  * [Config] CONFIG_FB_SAVAGE_I2C=y for all arches
  * [Config] CONFIG_FIREWIRE=m for ppc64el
  * [Config] CONFIG_FTR_FIXUP_SELFTEST=n for ppc64el
  * [Config] CONFIG_HAMRADIO=y for ppc64el
  * [Config] CONFIG_I2C_CHARDEV=m for ppc64el
  * [Config] CONFIG_I2C_MUX=m for ppc64el
  * [Config] CONFIG_I2C_STUB=m for ppc64el
  * [Config] CONFIG_I2O=m for ppc64el
  * [Config] CONFIG_INET_XFRM_MODE_BEET=m, CONFIG_INET_XFRM_MODE_TRANSPORT=m, CONFIG_INET_XFRM_MODE_TUNNEL=m for ppc64el
  * [Config] CONFIG_INFINIBAND_IPOIB_DEBUG=n, CONFIG_INFINIBAND_MTHCA_DEBUG=n for ppc64el
  * [Config] CONFIG_INFINIBAND_NES=m, CONFIG_INFINIBAND_OCRDMA=m, CONFIG_INFINIBAND_QIB=m for ppc64el
  * [Config] CONFIG_INPUT_FF_MEMLESS=m for ppc64el
  * [Config] CONFIG_INTERVAL_TREE_TEST=m for ppc64el
  * [Config] CONFIG_IPACK_BUS=m for ppc64el
  * [Config] CONFIG_ISDN=y for ppc64el
  * [Config] CONFIG_ISO9660_FS=m for ppc64el
  * [Config] CONFIG_KGDB=y for ppc64el
  * [Config] CONFIG_KVM_GUEST=y for ppc64el
  * [Config] CONFIG_L2TP_V3=y for powerpc
  * [Config] CONFIG_MAILBOX=y for ppc64el
  * [Config] CONFIG_MD_LINEAR=m, CONFIG_MD_RAID0=m, CONFIG_MD_RAID1=m for ppc64el
  * [Config] CONFIG_MEDIA_SUPPORT=m for ppc64el
  * [Config] CONFIG_MEMORY=y for ppc64el
  * [Config] CONFIG_MEMSTICK=m for ppc64el
  * [Config] CONFIG_MFD_SM501_GPIO=n for ppc64el
  * [Config] CONFIG_MLX4_DEBUG=n for ppc64el
  * [Config] CONFIG_MMC_BLOCK=m for ppc64el
  * [Config] CONFIG_MOUSE_PS2=m for ppc64el
  * [Config] CONFIG_NET_9P=m for ppc64el
  * [Config] CONFIG_MSDOS_FS=m for ppc64el
  * [Config] CONFIG_MSI_BITMAP_SELFTEST=n for ppc64el
  * [Config] CONFIG_MTD=m for arm64
  * [Config] CONFIG_NETCONSOLE=m for ppc64el
  * [Config] CONFIG_NETFILTER_XT_TARGET_NOTRACK=m for ppc64el
  * [Config] CONFIG_NETPOLL_TRAP=n for ppc64el
  * [Config] CONFIG_NET_IPIP=m for ppc64el
  * [Config] CONFIG_NET_TEAM=m for all arches
  * [Config] CONFIG_NFC=m for ppc64el
  * [Config] CONFIG_NL80211_TESTMODE=n for all arches
  * [Config] CONFIG_NLS_CODEPAGE_437=y for powerpc
  * [Config] CONFIG_NLS_ASCII=m, CONFIG_NLS_ISO8859_1=m, CONFIG_NLS_UTF8=m for ppc64el
  * [Config] CONFIG_NOP_USB_XCEIV=m for ppc64el
  * [Config] CONFIG_NOTIFIER_ERROR_INJECTION=m for ppc64el
  * [Config] CONFIG_OPROFILE=m for ppc64el
  * [Config] CONFIG_PARPORT_1284=y for ppc64el
  * [Config] CONFIG_PARPORT_AX88796=m, CONFIG_PARPORT_PC_FIFO=y, CONFIG_PARPORT_SERIAL=m for ppc64el
  * [Config] CONFIG_PCI_IOV=y, CONFIG_PCI_PASID=y, CONFIG_PCI_PRI=y, CONFIG_PCI_REALLOC_ENABLE_AUTO=y, CONFIG_PCI_STUB=m for ppc64el
  * [Config] CONFIG_PCNET32=m for ppc64el
  * [Config] CONFIG_SCSI_DH_EMC=m for ppc64el
  * [Config] CONFIG_SCSI_DH_HP_SW=m for ppc64el
  * [Config] CONFIG_SCSI_FC_ATTRS=m for ppc64el
  * [Config] CONFIG_SCSI_IPR=m for ppc64el
  * [Config] CONFIG_SCSI_LOGGING=y for ppc64el
  * [Config] CONFIG_SCSI_OSD_INITIATOR=m for ppc64el
  * [Config] CONFIG_SCSI_SCAN_ASYNC=y for ppc64el
  * [Config] CONFIG_SCSI_SYM53C8XX_2=m for ppc64el

  [ Timo Aaltonen ]

  * SAUCE: i915_bdw: Provide an ubuntu/i915 driver for Broadwell graphics
    - LP: #1294144
  * SAUCE: i915_bdw: Add DP_AUX definitions
    - LP: #1294144
  * SAUCE: i915_bdw: Update intel_ips.h file location
    - LP: #1294144
  * SAUCE: i915_bdw: Revert "ACPI / i915: replace open-coded _DSM code with
    helper functions"
    - LP: #1294144
  * SAUCE: i915_bdw: Add an include back to intel_opregion.c
    - LP: #1294144
  * SAUCE: i915_bdw: Only support Broadwell with ubuntu/i915 driver
    - LP: #1294144
  * SAUCE: i915_bdw: Add i915_bdw_gpu_*() calls for ubuntu/i915
    - LP: #1294144
  * i915_bdw: [Config] Enable CONFIG_DRM_I915_BDW=m, and disable UMS
    - LP: #1294144
  * SAUCE: i915_bdw: Rename ubuntu/i915 driver to i915_bdw
    - LP: #1294144

  [ Upstream Kernel Changes ]

  * netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages
    - CVE-2014-2523
  * Input: ALPS - add support for "Dolphin" devices
    - LP: #1190867
  * x86/mm/pageattr: Lookup address in an arbitrary PGD
    - LP: #1297658
  * x86/mm/pageattr: Add a PGD pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PUD pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PMD pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PTE pagetable populating function
    - LP: #1297658
  * x86/mm/pageattr: Add a PUD error unwinding path
    - LP: #1297658
  * x86/mm/pageattr: Add last levels of error path
    - LP: #1297658
  * x86/mm/cpa: Map in an arbitrary pgd
    - LP: #1297658
  * x86/efi: Runtime services virtual mapping
    - LP: #1297658
  * x86/efi: Check krealloc return value
    - LP: #1297658
  * Include apm-mustang.dtb in kernel-image udeb
  * drm/i915: add i915_reset_count
    - LP: #1294144
  * drm/i915: add i915_get_reset_stats_ioctl
    - LP: #1294144
  * drm: add DRM_INFO_ONCE() to print a one-time DRM_INFO() message
    - LP: #1294144
  * drm: provide a helper for the encoder possible_crtcs mask
    - LP: #1294144
  * drm: Move drm_encoder_crtc_ok() to core
    - LP: #1294144
  * drm: Pass the display mode to drm_calc_timestamping_constants()
    - LP: #1294144
  * drm: Pass the display mode to drm_calc_vbltimestamp_from_scanoutpos()
    - LP: #1294144
  * drm: Pass 'flags' from the caller to .get_scanout_position()
    - LP: #1294144

  [ Upstream Kernel Changes ]

  * rebase to v3.13.7
    - LP: #1268468
 -- Andy Whitcroft <apw@xxxxxxxxxxxxx>   Mon, 24 Mar 2014 10:41:31 +0000

** Changed in: linux (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2014-2523

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https://bugs.launchpad.net/bugs/1298192

Title:
  hyper-v: Unable to take backups of Generation 2 VMs

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  Fix Released

Bug description:
  We are unable to take backups of Generation 2 VMs because they include
  a FAT 32 EFI partition. This patch ignores such partitions while
  freezing the file-system to take a snapshot during the initial stages
  of the backup process. Since EFI partition is not expected to be
  modified regularly, the ignore functionality should address the
  problem. Please include the following upstream patch in the vss
  daemon:

  Tools: hv: vssdaemon: Ignore VFAT mounts during the Freeze operation
  If the guest has a FAT file system mounted, skip it during the FREEZE
  operation. With this change we can support host initiated backup of
  the guest even when the guest may have FAT file systems mounted.

  https://git.kernel.org/cgit/linux/kernel/git/next/linux-
  next.git/commit/tools/hv/hv_vss_daemon.c?id=f33b215549938f89aebf862b942366d2aa41c191

  Thanks,
  Abhishek

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References