kernel-packages team mailing list archive

[bugproxy <bugproxy@xxxxxxxxxx>]

------- Comment From cdeadmin@xxxxxxxxxx 2015-03-05 12:15 EDT-------
==== State: Assigned by: sowsrira on 05 March 2015 06:11:28 ====

Applied the test kernel patches provided by Vicky, reboot the lpar,
shutdown to enable vTPM and reactivated with vTPM enabled.

The lpar now boots up with vTPM enabled, with patched kernel.
Details below.

root@br13p29:~/SW294167# pwd
/root/SW294167
root@br13p29:~/SW294167# ls
linux-headers-3.18.0-13_3.18.0-13.14+test4_all.deb
linux-headers-3.18.0-13-generic_3.18.0-13.14+test4_ppc64el.deb
linux-image-3.18.0-13-generic_3.18.0-13.14+test4_ppc64el.deb
linux-image-extra-3.18.0-13-generic_3.18.0-13.14+test4_ppc64el.deb
root@br13p29:~/SW294167# sudo dpkg -i linux-*-3.18.0-13*.deb
(Reading database ... 78251 files and directories currently installed.)
Preparing to unpack linux-headers-3.18.0-13_3.18.0-13.14+test4_all.deb ...
Unpacking linux-headers-3.18.0-13 (3.18.0-13.14+test4) over (3.18.0-13.14+121407) ...
[13771.481033] sdb2: WRITE SAME failed. Manually zeroing.
Preparing to unpack linux-headers-3.18.0-13-generic_3.18.0-13.14+test4_ppc64el.deb ...
Unpacking linux-headers-3.18.0-13-generic (3.18.0-13.14+test4) over (3.18.0-13.14+121407) ...
Preparing to unpack linux-image-3.18.0-13-generic_3.18.0-13.14+test4_ppc64el.deb ...
Done.
Unpacking linux-image-3.18.0-13-generic (3.18.0-13.14+test4) over (3.18.0-13.14+121407) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
Selecting previously unselected package linux-image-extra-3.18.0-13-generic.
Preparing to unpack linux-image-extra-3.18.0-13-generic_3.18.0-13.14+test4_ppc64el.deb ...
Unpacking linux-image-extra-3.18.0-13-generic (3.18.0-13.14+test4) ...
Setting up linux-headers-3.18.0-13 (3.18.0-13.14+test4) ...
Setting up linux-headers-3.18.0-13-generic (3.18.0-13.14+test4) ...
Setting up linux-image-3.18.0-13-generic (3.18.0-13.14+test4) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Not updating initrd symbolic links since we are being updated/reinstalled
(3.18.0-13.14+121407 was configured last, according to dpkg)
Not updating image symbolic links since we are being updated/reinstalled
(3.18.0-13.14+121407 was configured last, according to dpkg)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
update-initramfs: Generating /boot/initrd.img-3.18.0-13-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinux-3.18.0-13-generic
Found initrd image: /boot/initrd.img-3.18.0-13-generic
Found linux image: /boot/vmlinux-3.18.0-8-generic
Found initrd image: /boot/initrd.img-3.18.0-8-generic
[14064.149269] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
[14064.161063] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
[14064.167576] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
[14064.175588] FAT-fs (sda1): bogus number of reserved sectors
[14064.212043] FAT-fs (sda1): bogus number of reserved sectors
[14064.261048] qnx4: no qnx4 filesystem (no root dir).
[14064.266754] ufs: You didn't specify the type of your ufs filesystem
[14064.266754]
[14064.266754] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
[14064.266754]
[14064.266754] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
[14064.276440] ufs: ufs_fill_super(): bad magic number
[14065.459630] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
[14065.468672] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
[14065.476910] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
[14065.485124] FAT-fs (sdb1): bogus number of reserved sectors
[14065.522739] FAT-fs (sdb1): bogus number of reserved sectors
[14065.562784] qnx4: no qnx4 filesystem (no root dir).
[14065.565514] ufs: You didn't specify the type of your ufs filesystem
[14065.565514]
[14065.565514] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
[14065.565514]
[14065.565514] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
[14065.574702] ufs: ufs_fill_super(): bad magic number
Found Ubuntu Vivid Vervet (development branch) (15.04) on /dev/sda2
done
Setting up linux-image-extra-3.18.0-13-generic (3.18.0-13.14+test4) ...
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
update-initramfs: Generating /boot/initrd.img-3.18.0-13-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.18.0-13-generic /boot/vmlinux-3.18.0-13-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinux-3.18.0-13-generic
Found initrd image: /boot/initrd.img-3.18.0-13-generic
Found linux image: /boot/vmlinux-3.18.0-8-generic
Found initrd image: /boot/initrd.img-3.18.0-8-generic
[14083.668552] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
[14083.684130] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
[14083.718021] EXT4-fs (sda1): VFS: Can't find ext4 filesystem
[14083.758599] FAT-fs (sda1): bogus number of reserved sectors
[14083.850451] FAT-fs (sda1): bogus number of reserved sectors
[14083.950886] qnx4: no qnx4 filesystem (no root dir).
[14083.966433] ufs: You didn't specify the type of your ufs filesystem
[14083.966433]
[14083.966433] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
[14083.966433]
[14083.966433] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
[14083.989594] ufs: ufs_fill_super(): bad magic number
[14084.837774] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
[14084.847837] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
[14084.860990] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
[14084.871369] FAT-fs (sdb1): bogus number of reserved sectors
[14084.922541] FAT-fs (sdb1): bogus number of reserved sectors
[14084.970001] qnx4: no qnx4 filesystem (no root dir).
[14084.975678] ufs: You didn't specify the type of your ufs filesystem
[14084.975678]
[14084.975678] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
[14084.975678]
[14084.975678] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
[14084.984708] ufs: ufs_fill_super(): bad magic number
Found Ubuntu Vivid Vervet (development branch) (15.04) on /dev/sda2
done
root@br13p29:~/SW294167# echo $?
0

vTPM enabled and running:

IBM DEVELOPMENT USE ONLY [root@brhmc12 ~] # lssyscfg -r lpar -m alp7fp1 | grep p29
name=br13p29,lpar_id=12,lpar_env=aixlinux, ** state=Running **,resource_config=1,os_version=Linux/Debian 3.18.0-13-generic Unknown,logical_serial_num=106786VC,default_profile=br13p29_vscsi-md_srr,curr_profile=br13p29_vscsi-md_srr,work_group_id=none,shared_proc_pool_util_auth=0,allow_perf_collection=0,power_ctrl_lpar_ids=none,boot_mode=norm,lpar_keylock=norm,auto_start=0,redundant_err_path_reporting=0,rmc_state=active,rmc_ipaddr=10.33.17.203,time_ref=0,lpar_avail_priority=127,desired_lpar_proc_compat_mode=default,curr_lpar_proc_compat_mode=POWER8,suspend_capable=1,remote_restart_capable=0,simplified_remote_restart_capable=0,sync_curr_profile=0,affinity_group_id=none, **vtpm_enabled=1 **

root@br13p29:~# date;uptime
Thu Mar  5 06:09:49 CST 2015
06:09:49 up 13 min,  1 user,  load average: 0.00, 0.01, 0.03

-- 
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/1420575

Title:
  Ubuntu-LE lpar won't boot with vTPM enabled

Status in linux package in Ubuntu:
  Fix Committed

Bug description:
  [Impact]
  Ubuntu-LE lpar on PowerVM system doesn't boot when vTPM is enabled.
  It will fail to boot, showing B200A101 reference code on the HMC.

  Without vTPM, the lpar boots up just fine.

  [Fix]
  commit 84eb186bc37c0900b53077ca21cf6dd15823a232 upstream (not in v3.19)

  [Test Case]
  Boot system with vTPM enabled, ensure system doesn't fail to boot.

  --
  Here is the console output when attempting to activate the lpar with vTPM enabled after which it fails to boot:

  Enter Number of Running Partition (q to quit): 24
  24
      Opening Virtual Terminal On Partition br13p29 . . .

   Open in progress

   Open Completed.

  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM

            1 = SMS Menu                          5 = Default Boot List
            8 = Open Firmware Prompt              6 = Stored Boot List

       Memory      Keyboard     Network     Speaker
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM                             IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM     STARTING SOFTWARE       IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM        PLEASE WAIT...       IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM                             IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM
  \
  Elapsed time since release of system processors: 0 mins 11 secs
  error: no suitable video mode found.

                          GNU GRUB  version 2.02~beta2-21

   +----------------------------------------------------------------------------+
   |*Ubuntu                                                                     |
   | Advanced options for Ubuntu                                                |
   | Ubuntu Vivid Vervet (development branch) (15.04) (on /dev/sda2)            |
   | Advanced options for Ubuntu Vivid Vervet (development branch) (15.04) (on >|
   |                                                                            |
   |                                                                            |
   |                                                                            |
   |                                                                            |
   |                                                                            |
   |                                                                            |
   |                                                                            |
   |                                                                            |
   +----------------------------------------------------------------------------+

        Use the ^ and v keys to select which entry is highlighted.
        Press enter to boot the selected OS, `e' to edit the commands
        before booting or `c' for a command-line.
     The highlighted entry will be executed automatically in 0s.

  Loading Linux 3.18.0-8-generic ...
  Loading initial ramdisk ...
  OF stdout device is: /vdevice/vty@30000000
  Preparing to boot Linux version 3.18.0-8-generic (buildd@fisher01) (gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu1) ) #9-Ubuntu SMP Mon Jan 5 22:52:15 UTC 2015 (Ubuntu 3.18.0-8.9-generic 3.18.1)
  Detected machine type: 0000000000000101
  Max number of cores passed to firmware: 256 (NR_CPUS = 2048)
  Calling ibm,client-architecture-support... done
  command line: BOOT_IMAGE=/boot/vmlinux-3.18.0-8-generic root=UUID=e3bd0893-3e9a-4aaa-924b-0becb28a184e ro splash quiet
  memory layout at init:
    memory_limit : 0000000000000000 (16 MB aligned)
    alloc_bottom : 000000000b4f0000
    alloc_top    : 0000000010000000
    alloc_top_hi : 0000000010000000
    rmo_top      : 0000000010000000
    ram_top      : 0000000010000000
  instantiating rtas at 0x000000000eca0000... done
  instantiating sml at 0x000000000ec70000... done
  prom_hold_cpus: skipped
  copying OF device tree...
  Building dt strings...
  Building dt structure...
  Device tree strings 0x000000000b500000 -> 0x000000000b5016ff
  Device tree struct  0x000000000b510000 -> 0x000000000b540000
  Calling quiesce...
  returning from prom_init
   -> smp_release_cpus()
  spinning_secondaries = 7
   <- smp_release_cpus()
   <- setup_system()
  [    0.586900] Unable to handle kernel paging request for data at address 0x00000028
  [    0.586921] Faulting instruction address: 0xc000000000645614
  [    0.586927] Oops: Kernel access of bad area, sig: 11 [#1]
  [    0.586930] SMP NR_CPUS=2048 NUMA pSeries
  [    0.586936] Modules linked in:
  [    0.586941] CPU: 6 PID: 1 Comm: swapper/0 Not tainted 3.18.0-8-generic #9-Ubuntu
  [    0.586946] task: c000000279580000 ti: c000000279600000 task.ti: c000000279600000
  [    0.586950] NIP: c000000000645614 LR: c0000000000338f0 CTR: c0000000006455c0
  [    0.586954] REGS: c0000002796035f0 TRAP: 0300   Not tainted  (3.18.0-8-generic)
  [    0.586958] MSR: 8000000100009033 <SF,EE,ME,IR,DR,RI,LE>  CR: 82000022  XER: 20000010
  [    0.586969] CFAR: c0000000006455ec DAR: 0000000000000028 DSISR: 40000000 SOFTE: 1
  GPR00: c0000000000338f0 c000000279603870 c000000001426710 c000000276902400
  GPR04: 0000000000000001 c00000000b500332 c000000000a7b960 c00000000b538d9c
  GPR08: 0000000000000008 0000000000000000 0000000000000000 0000000000000000
  GPR12: c0000000006455c0 c00000000e7f3600 c00000000000bde8 0000000000000000
  GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR24: 0000000000000000 c00000000137f9a8 c000000276902800 c00000000137fa20
  GPR28: c000000001474a68 c000000276902400 c00000000137f9a8 c000000276902400
  [    0.587023] NIP [c000000000645614] tpm_ibmvtpm_get_desired_dma+0x54/0x70
  [    0.587029] LR [c0000000000338f0] vio_bus_probe+0x2c0/0x480
  [    0.587032] Call Trace:
  [    0.587035] [c000000279603870] [c00000027fffeb00] 0xc00000027fffeb00 (unreliable)
  [    0.587041] [c0000002796038a0] [c0000000000338f0] vio_bus_probe+0x2c0/0x480
  [    0.587047] [c000000279603940] [c00000000065363c] driver_probe_device+0xec/0x4a0
  [    0.587052] [c0000002796039d0] [c000000000653bac] __driver_attach+0x11c/0x120
  [    0.587057] [c000000279603a10] [c00000000065055c] bus_for_each_dev+0x9c/0x110
  [    0.587062] [c000000279603a60] [c000000000652dbc] driver_attach+0x3c/0x60
  [    0.587068] [c000000279603a90] [c000000000652768] bus_add_driver+0x208/0x320
  [    0.587072] [c000000279603b20] [c00000000065486c] driver_register+0x9c/0x180
  [    0.587077] [c000000279603b90] [c000000000032078] __vio_register_driver+0x78/0xd0
  [    0.587082] [c000000279603c10] [c000000000de5fd8] ibmvtpm_module_init+0x2c/0x40
  [    0.587089] [c000000279603c30] [c00000000000b4dc] do_one_initcall+0x12c/0x280
  [    0.587094] [c000000279603d00] [c000000000d94174] kernel_init_freeable+0x25c/0x33c
  [    0.587099] [c000000279603dc0] [c00000000000be0c] kernel_init+0x2c/0x140
  [    0.587104] [c000000279603e30] [c000000000009568] ret_from_kernel_thread+0x5c/0x74
  [    0.587109] Instruction dump:
  [    0.587111] e93f00e8 2fa90000 419e0024 e9290120 80690028 3c630001 38210030 e8010010
  [    0.587119] ebe1fff8 7c0803a6 4e800020 39200000 <80690028> 3c630001 38210030 e8010010
  [    0.587131] ---[ end trace abfb9dc75b29309e ]---
  [    0.589187]
  [    2.589254] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
  [    2.589254]
  [    2.593773] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
  [    2.593773]

  These are the patches needed, base on the error I see from the bug
  report.  However, please note that I have not tested them to confirm.

  > http://sourceforge.net/p/tpmdd/mailman/message/32960386/

  This was accepted upstream.  However, as you mentioned that you
  couldn't find it in the 3.19, I'll have to follow up with you on this.

  > http://sourceforge.net/p/tpmdd/mailman/message/33351549/

  This one is in the process of getting accepted.  It was just reviewed,
  but I need reformat the patch to resubmit it.

  >Hmm, if it was accepted before 3.19 it should appear in 3.19, unless it was reverted, which doesn't seem to be the case.
  Right, it "should" appear in 3.19, but not necessarily.  In this case, the patch wouldn't be available in the 3.19 kernel.  The TPM maintainers bundled the vtpm patch with many others and somehow missed the last merge window in submitting to Linus.  They had then resubmitted a pull request on Jan 17, 2015.  Therefore, the patch will be available in 3.20 instead.

  The fix is now available in the git repository at:
  https://github.com/PeterHuewe/linux-tpmdd/commit/84eb186bc37c0900b53077ca21cf6dd15823a232

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1420575/+subscriptions