[Kernel-packages] [Bug 1976399] Re: focal/azure: The console log of ARM64 Ubuntu 18.04 has duplicate output

[Launchpad Bug Tracker]

This bug was fixed in the package linux-azure - 5.4.0-1086.91

---
linux-azure (5.4.0-1086.91) focal; urgency=medium

  * focal/linux-azure: 5.4.0-1086.91 -proposed tracker (LP: #1979462)

  * Focal update: upstream stable patchset v5.4.192 (LP: #1979014)
- [Config] azure: updateconfigs for NVM, NVM_PBLK

  * focal/azure: The console log of ARM64 Ubuntu 18.04 has duplicate output
(LP: #1976399)
- printk: Move console matching logic into a separate function
- printk: Fix preferred console selection with multiple matches

  * nbd: requests can become stuck when disconnecting from server with qemu-nbd
(LP: #1896350)
- blk-mq: blk-mq: provide forced completion method
- blk-mq: move failure injection out of blk_mq_complete_request
- nbd: don't handle response without a corresponding request message
- nbd: make sure request completion won't concurrent
- nbd: don't clear 'NBD_CMD_INFLIGHT' flag if request is not completed
- nbd: fix io hung while disconnecting device

  * Azure 5.4: vDSO broken with 5.4.0-1075-azure (LP: #1977753)
- Revert "clocksource/drivers/hyper-v: Handle vDSO differences inline"

  [ Ubuntu: 5.4.0-122.138 ]

  * focal/linux: 5.4.0-122.138 -proposed tracker (LP: #1979489)
  * Remove SAUCE patches from test_vxlan_under_vrf.sh in net of
ubuntu_kernel_selftests (LP: #1975691)
- Revert "UBUNTU: SAUCE: selftests: net: Don't fail test_vxlan_under_vrf on
  xfail"
- Revert "UBUNTU: SAUCE: selftests: net: Make test for VXLAN underlay in 
non-
  default VRF an expected failure"
  * Enable Asus USB-BT500 Bluetooth dongle(0b05:190e) (LP: #1976613)
- Bluetooth: btusb: Add flag to define wideband speech capability
- Bluetooth: btrtl: Add support for RTL8761B
- Bluetooth: btusb: Add 0x0b05:0x190e Realtek 8761BU (ASUS BT500) device.
  * [UBUNTU 20.04] rcu stalls with many storage key guests (LP: #1975582)
- s390/gmap: voluntarily schedule during key setting
- s390/mm: use non-quiescing sske for KVM switch to keyed guest
  * Ubuntu 5.4.0-117.132-generic 5.4.189 has BUG: kernel NULL pointer
dereference, address: 0034 (LP: #1978719)
- mm: rmap: explicitly reset vma->anon_vma in unlink_anon_vmas()
  * Focal update: upstream stable patchset v5.4.192 (LP: #1979014)
- floppy: disable FDRAWCMD by default
- [Config] updateconfigs for BLK_DEV_FD_RAWCMD
- hamradio: defer 6pack kfree after unregister_netdev
- hamradio: remove needs_free_netdev to avoid UAF
- lightnvm: disable the subsystem
- [Config] updateconfigs for NVM, NVM_PBLK
- usb: mtu3: fix USB 3.0 dual-role-switch from device to host
- USB: quirks: add a Realtek card reader
- USB: quirks: add STRING quirk for VCOM device
- USB: serial: whiteheat: fix heap overflow in WHITEHEAT_GET_DTR_RTS
- USB: serial: cp210x: add PIDs for Kamstrup USB Meter Reader
- USB: serial: option: add support for Cinterion MV32-WA/MV32-WB
- USB: serial: option: add Telit 0x1057, 0x1058, 0x1075 compositions
- xhci: stop polling roothubs after shutdown
- xhci: increase usb U3 -> U0 link resume timeout from 100ms to 500ms
- iio: dac: ad5592r: Fix the missing return value.
- iio: dac: ad5446: Fix read_raw not returning set value
- iio: magnetometer: ak8975: Fix the error handling in ak8975_power_on()
- usb: misc: fix improper handling of refcount in uss720_probe()
- usb: typec: ucsi: Fix role swapping
- usb: gadget: uvc: Fix crash when encoding data for usb request
- usb: gadget: configfs: clear deactivation flag in
  configfs_composite_unbind()
- usb: dwc3: core: Fix tx/rx threshold settings
- usb: dwc3: gadget: Return proper request status
- serial: imx: fix overrun interrupts in DMA mode
- serial: 8250: Also set sticky MCR bits in console restoration
- serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device
- arch_topology: Do not set llc_sibling if llc_id is invalid
- hex2bin: make the function hex_to_bin constant-time
- hex2bin: fix access beyond string end
- video: fbdev: udlfb: properly check endpoint type
- arm64: dts: meson: remove CPU opps below 1GHz for G12B boards
- arm64: dts: meson: remove CPU opps below 1GHz for SM1 boards
- mtd: rawnand: fix ecc parameters for mt7622
- USB: Fix xhci event ring dequeue pointer ERDP update issue
- ARM: dts: imx6qdl-apalis: Fix sgtl5000 detection issue
- phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe
- phy: samsung: exynos5250-sata: fix missing device put in probe error paths
- ARM: OMAP2+: Fix refcount leak in omap_gic_of_init
- phy: ti: omap-usb2: Fix error handling in omap_usb2_enable_clocks
- ARM: dts: at91: Map MCLK for wm8731 on at91sam9g20ek
- phy: mapphone-mdm6600: Fix PM error handling in phy_mdm6600_probe
- phy: ti: Add missing pm_runtime_disable() in serdes_am654_probe
- ARM: dts: Fix mmc order for omap3-gta04
   

[Kernel-packages] [Bug 1976399] Re: focal/azure: The console log of ARM64 Ubuntu 18.04 has duplicate output

[Tim Gardner]

Microsoft tested

** Tags removed: verification-needed-focal
** Tags added: verification-done-focal

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https://bugs.launchpad.net/bugs/1976399

Title:
  focal/azure: The console log of ARM64 Ubuntu 18.04 has duplicate
  output

Status in linux-azure package in Ubuntu:
  Fix Released
Status in linux-azure source package in Focal:
  Fix Committed

Bug description:
  SRU Justification

  [Impact]

  There is duplicate output on the console . LSG team identify the root
  cause and suggested to apply two patches below.

  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad8cd1db80cc7bdbee63c453ef6d5132474b
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e369d8227fd211be36242fc44a9dc2209e246b9a

  What we are hitting is exactly in the second commit's log. Ubuntu
  kernel also needs the following diff:

  diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
  index f07367100ece..dca15e27123a 100644
  --- a/kernel/printk/printk.c
  +++ b/kernel/printk/printk.c
  @@ -2203,7 +2203,7 @@ static int __init console_setup(char *str)
  * for exacly this purpose.
  */
  if (str[0] == 0 || strcmp(str, "null") == 0) {
  - __add_preferred_console("ttynull", 0, NULL, NULL);
  + __add_preferred_console("ttynull", 0, NULL, NULL, true);
  return 1;
  }

  Linux kernel: 5.4.0-1078-azure
  Tested in Azure
  Host version: 22477.1101-1-0
  Image: Canonical 0002-com-ubuntu-server-arm-preview-bionic 18_04-lts 
18.04.202205020

  From Azure Serial Console, we can see duplicate output.

  Such as:

  [ 3.109140] Platform Keyring initialized
  [ 3.109140] Platform Keyring initialized
  [ 3.117148] Key type asymmetric registered
  [ 3.117148] Key type asymmetric registered
  [ 3.122303] Asymmetric key parser 'x509' registered
  [ 3.122303] Asymmetric key parser 'x509' registered

  [Test Plan]

  Microsoft tested

  [Where things could go wrong]

  The kernel log could get corrupted.

  [Other Info]

  SF: #00338148

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[Kernel-packages] [Bug 1976399] Re: focal/azure: The console log of ARM64 Ubuntu 18.04 has duplicate output

[Tim Gardner]

Patch submitted: https://lists.ubuntu.com/archives/kernel-
team/2022-May/130776.html

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1976399

Title:
  focal/azure: The console log of ARM64 Ubuntu 18.04 has duplicate
  output

Status in linux-azure package in Ubuntu:
  Fix Released
Status in linux-azure source package in Focal:
  In Progress

Bug description:
  SRU Justification

  [Impact]

  There is duplicate output on the console . LSG team identify the root
  cause and suggested to apply two patches below.

  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad8cd1db80cc7bdbee63c453ef6d5132474b
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e369d8227fd211be36242fc44a9dc2209e246b9a

  What we are hitting is exactly in the second commit's log. Ubuntu
  kernel also needs the following diff:

  diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
  index f07367100ece..dca15e27123a 100644
  --- a/kernel/printk/printk.c
  +++ b/kernel/printk/printk.c
  @@ -2203,7 +2203,7 @@ static int __init console_setup(char *str)
  * for exacly this purpose.
  */
  if (str[0] == 0 || strcmp(str, "null") == 0) {
  - __add_preferred_console("ttynull", 0, NULL, NULL);
  + __add_preferred_console("ttynull", 0, NULL, NULL, true);
  return 1;
  }

  Linux kernel: 5.4.0-1078-azure
  Tested in Azure
  Host version: 22477.1101-1-0
  Image: Canonical 0002-com-ubuntu-server-arm-preview-bionic 18_04-lts 
18.04.202205020

  From Azure Serial Console, we can see duplicate output.

  Such as:

  [ 3.109140] Platform Keyring initialized
  [ 3.109140] Platform Keyring initialized
  [ 3.117148] Key type asymmetric registered
  [ 3.117148] Key type asymmetric registered
  [ 3.122303] Asymmetric key parser 'x509' registered
  [ 3.122303] Asymmetric key parser 'x509' registered

  [Test Plan]

  Microsoft tested

  [Where things could go wrong]

  The kernel log could get corrupted.

  [Other Info]

  SF: #00338148

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1976399/+subscriptions


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