[Hyper-V] storvsc messages for CD-ROM medium not present tray closed

[Chris Valean]

The below can be seen with any distribution running on a Generation 2 VM.

There is a verified patch for this, however it has been scheduled only for the 4.8 scsi-queue.
As it a small patch which has been verified by KY and also accepted in the patch queue, will you be able to include this as part of the 16.04 rebase to 4.6, and as well for 14.04 and 15.10?

Patch can be found at https://patchwork.kernel.org/patch/9131929/

Description of problem:
When starting and shutting down a Gen2 VM, at least 20-30 messages are recorded for storvsc with the below sample:
[storvsc] Sense Key : Not Ready [current]
[storvsc] Add. Sense: Medium not present - tray closed

Steps to Reproduce:
1. create a Generation2 VM
2. start VM and observe the system logs
3. multiple messages for the cd-rom are recorded from storvsc

Actual results:
even without a CD-ROM unit attached, the messages would appear.
Having an ISO attached or not would still produce the same messages.

[Chris Valean (cvalean)]

Patch has been accepted in upstream, commit ID e1f00c87f75d6f739aaf50958db26cd357d68797

[Joseph Salisbury (jsalisbury)]

I built a Xenial test kernel with the patch. The patch required commit f8aea701b as a prerequisite. The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1590655/

Can you test this kernel and see if it resolves this bug?

[Chris Valean (cvalean)]

I verified the lp1590655 test kernel and the storvsc bulk messages are no longer showing up.
Please continue with merging this patch in all current releases.

Thanks Joe!

[Kamal Mostafa (kamalmostafa)]

No further updates are planned for Wily's kernel.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-33.52

---------------
linux (4.4.0-33.52) xenial; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1605709

  * [regression] NFS client: access problems after updating to kernel
    4.4.0-31-generic (LP: #1603719)
    - SAUCE: (namespace) Bypass sget() capability check for nfs

linux (4.4.0-32.51) xenial; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1604443

  * thinkpad yoga 260 wacom touchscreen not working (LP: #1603975)
    - HID: wacom: break out parsing of device and registering of input
    - HID: wacom: Initialize hid_data.inputmode to -1
    - HID: wacom: Support switching from vendor-defined device mode on G9 and G11

  * changelog: add CVEs as first class citizens (LP: #1604344)
    - use CVE numbers in changelog

  * [Xenial] Include Huawei PCIe SSD hio kernel driver (LP: #1603483)
    - SAUCE: import Huawei ES3000_V2 (2.1.0.23)
    - SAUCE: hio: bio_endio() no longer takes errors arg
    - SAUCE: hio: blk_queue make_request_fn now returns a blk_qc_t
    - SAUCE: hio: use alloc_cpumask_var to avoid -Wframe-larger-than
    - SAUCE: hio: fix mask maybe-uninitialized warning
    - [config] enable CONFIG_HIO (Huawei ES3000_V2 PCIe SSD driver)
    - SAUCE: hio: Makefile and Kconfig

  * CVE-2016-5243 (LP: #1589036)
    - tipc: fix an infoleak in tipc_nl_compat_link_dump
    - tipc: fix nl compat regression for link statistics

  * CVE-2016-4470
    - KEYS: potential uninitialized variable

  * integer overflow in xt_alloc_table_info (LP: #1555353)
    - netfilter: x_tables: check for size overflow

  * CVE-2016-3135:
    - Revert "UBUNTU: SAUCE: (noup) netfilter: x_tables: check for size overflow"

  * CVE-2016-4440 (LP: #1584192)
    - kvm:vmx: more complete state update on APICv on/off

  * the system hangs in the dma driver when reboot or shutdown on a baytrail-m
    laptop (LP: #1602579)
    - dmaengine: dw: platform: power on device on shutdown
    - ACPI / LPSS: override power state for LPSS DMA device

  * Add proper palm detection support for MS Precision Touchpad (LP: #1593124)
    - Revert "HID: multitouch: enable palm rejection if device implements
      confidence usage"
    - HID: multitouch: enable palm rejection for Windows Precision Touchpad

  * Add support for Intel 8265 Bluetooth ([8087:0A2B]) (LP: #1599068)
    - Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b]

  * CVE-2016-4794 (LP: #1581871)
    - percpu: fix synchronization between chunk->map_extend_work and chunk
      destruction
    - percpu: fix synchronization between synchronous map extension and chunk
      destruction

  * Xenial update to v4.4.15 stable release (LP: #1601952)
    - net_sched: fix pfifo_head_drop behavior vs backlog
    - net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG
    - sit: correct IP protocol used in ipip6_err
    - esp: Fix ESN generation under UDP encapsulation
    - netem: fix a use after free
    - ipmr/ip6mr: Initialize the last assert time of mfc entries.
    - Bridge: Fix ipv6 mc snooping if bridge has no ipv6 address
    - sock_diag: do not broadcast raw socket destruction
    - bpf, perf...

[Seth Forshee (sforshee)]

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-xenial' to 'verification-done-xenial'.

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!

[Joshua R. Poulson (jrp)]

Acknowledged, we will verify and revert.

[Ovidiu Rusu (orusu)]

I've tested on Ubuntu 16.04 Gen 2 with the proposed kernel (4.4.0.34.36) and the messages no longer appear.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-34.53

---------------
linux (4.4.0-34.53) xenial; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1606960

  * [APL][SAUCE] Slow system response time due to a monitor bug (LP: #1606147)
    - x86/cpu/intel: Introduce macros for Intel family numbers
    - SAUCE: x86/cpu: Add workaround for MONITOR instruction erratum on Goldmont
      based CPUs

linux (4.4.0-33.52) xenial; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1605709

  * [regression] NFS client: access problems after updating to kernel
    4.4.0-31-generic (LP: #1603719)
    - SAUCE: (namespace) Bypass sget() capability check for nfs

linux (4.4.0-32.51) xenial; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1604443

  * thinkpad yoga 260 wacom touchscreen not working (LP: #1603975)
    - HID: wacom: break out parsing of device and registering of input
    - HID: wacom: Initialize hid_data.inputmode to -1
    - HID: wacom: Support switching from vendor-defined device mode on G9 and G11

  * changelog: add CVEs as first class citizens (LP: #1604344)
    - use CVE numbers in changelog

  * [Xenial] Include Huawei PCIe SSD hio kernel driver (LP: #1603483)
    - SAUCE: import Huawei ES3000_V2 (2.1.0.23)
    - SAUCE: hio: bio_endio() no longer takes errors arg
    - SAUCE: hio: blk_queue make_request_fn now returns a blk_qc_t
    - SAUCE: hio: use alloc_cpumask_var to avoid -Wframe-larger-than
    - SAUCE: hio: fix mask maybe-uninitialized warning
    - [config] enable CONFIG_HIO (Huawei ES3000_V2 PCIe SSD driver)
    - SAUCE: hio: Makefile and Kconfig

  * CVE-2016-5243 (LP: #1589036)
    - tipc: fix an infoleak in tipc_nl_compat_link_dump
    - tipc: fix nl compat regression for link statistics

  * CVE-2016-4470
    - KEYS: potential uninitialized variable

  * integer overflow in xt_alloc_table_info (LP: #1555353)
    - netfilter: x_tables: check for size overflow

  * CVE-2016-3135:
    - Revert "UBUNTU: SAUCE: (noup) netfilter: x_tables: check for size overflow"

  * CVE-2016-4440 (LP: #1584192)
    - kvm:vmx: more complete state update on APICv on/off

  * the system hangs in the dma driver when reboot or shutdown on a baytrail-m
    laptop (LP: #1602579)
    - dmaengine: dw: platform: power on device on shutdown
    - ACPI / LPSS: override power state for LPSS DMA device

  * Add proper palm detection support for MS Precision Touchpad (LP: #1593124)
    - Revert "HID: multitouch: enable palm rejection if device implements
      confidence usage"
    - HID: multitouch: enable palm rejection for Windows Precision Touchpad

  * Add support for Intel 8265 Bluetooth ([8087:0A2B]) (LP: #1599068)
    - Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b]

  * CVE-2016-4794 (LP: #1581871)
    - percpu: fix synchronization between chunk->map_extend_work and chunk
      destruction
    - percpu: fix synchronization between synchronous map extension and chunk
      destruction

  * Xenial update to v4.4.15 stable release (LP: #1601952)
    - net_sched: fix pfifo_head_drop behavior vs backlog
    - net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC...

[Joseph Salisbury (jsalisbury)]

I built a Trusty test kernel with the patch. The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1590655/

Can you test this kernel and see if it resolves this bug?

[Ovidiu Rusu (orusu)]

I've tested the kernel on Trusty and the messages no longer appear.

[Tim Gardner (timg-tpi)]

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-trusty' to 'verification-done-trusty'.

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 - 3.13.0-96.143

---------------
linux (3.13.0-96.143) trusty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1618083

  * CVE-2015-8767
    - sctp: Prevent soft lockup when sctp_accept() is called during a timeout
      event

  * MacBookPro11,4 fails to poweroff or suspend (LP: #1587714)
    - SAUCE: PCI: Workaround to enable poweroff on Mac Pro 11

  * 3.13: libvirtd: page allocation failure: order:4, mode:0x1040d0
    (LP: #1616193)
    - vhost-net: extend device allocation to vmalloc
    - vhost-net: don't open-code kvfree

  * [arm64] nova instances can't boot with 3.13.0-92 (LP: #1608854)
    - Revert "UBUNTU: [Config] CONFIG_EFI=n for arm64"
    - Revert "UBUNTU: SAUCE: UEFI: Set EFI_SECURE_BOOT bit in x86_efi_facility"
    - Revert "UBUNTU: SAUCE: UEFI: Add secure boot and MOK SB State disabled
      sysctl"
    - Revert "UBUNTU: SAUCE: UEFI: Display MOKSBState when disabled"
    - Revert "UBUNTU: SAUCE: UEFI: efi: Disable secure boot if shim is in insecure
      mode"
    - Revert "UBUNTU: SAUCE: UEFI MODSIGN: Import certificates from UEFI Secure
      Boot"
    - Revert "UBUNTU: SAUCE: UEFI: efi: Make EFI_SECURE_BOOT_SIG_ENFORCE depend on
      EFI"
    - Revert "UBUNTU: SAUCE: UEFI: Add option to automatically enforce module
      signatures when in Secure Boot mode"
    - Revert "UBUNTU: [Config] CONFIG_EFI_SECURE_BOOT_SIG_ENFORCE=y"
    - Revert "UBUNTU: SAUCE: UEFI: x86: Restrict MSR access when module loading is
      restricted"
    - Revert "UBUNTU: SAUCE: UEFI: kexec: Disable at runtime if the kernel
      enforces module loading restrictions"
    - Revert "UBUNTU: SAUCE: UEFI: acpi: Ignore acpi_rsdp kernel parameter when
      module loading is restricted"
    - Revert "UBUNTU: SAUCE: UEFI: Restrict /dev/mem and /dev/kmem when module
      loading is restricted"
    - Revert "UBUNTU: SAUCE: UEFI: asus-wmi: Restrict debugfs interface when
      module loading is restricted"
    - Revert "UBUNTU: SAUCE: UEFI: ACPI: Limit access to custom_method"
    - Revert "UBUNTU: SAUCE: UEFI: x86: Lock down IO port access when module
      security is enabled"
    - Revert "UBUNTU: SAUCE: UEFI: PCI: Lock down BAR access when module security
      is enabled"
    - Revert "UBUNTU: SAUCE: UEFI: Add secure_modules() call"
    - Revert "x86/efi: Build our own EFI services pointer table"
    - Revert "efi: Add separate 32-bit/64-bit definitions"

  * [Hyper-V] storvsc messages for CD-ROM medium not present tray closed
    (LP: #1590655)
    - scsi: storvsc: Filter out storvsc messages CD-ROM medium not present

  * CVE-2016-3841
    - ipv6: add complete rcu protection around np->opt

 -- Kamal Mostafa <email address hidden> Tue, 16 Aug 2016 10:20:51 -0700