kci_test_encap_fou() in rtnetlink.sh from kselftests/net failed with "FAIL: can't add fou port 7777, skipping test"

[Po-Hsu Lin]

== SRU Justification ==
The kci_test_encap_fou() from kci_test_encap() in rtnetlink.sh of
kselftests/net will fail with non-zero return value, and print:
  "FAIL: can't add fou port 7777, skipping test"

How to reproduce this:
 devdummy="test-dummy0"
 testns="testns"
 ip netns add "$testns"
 ip netns exec "$testns" ip link set lo up
 ip netns exec "$testns" ip link add name "$devdummy" type dummy
 ip netns exec "$testns" ip link set "$devdummy" up
 ip netns exec "$testns" ip fou add port 7777 ipproto 47
RTNETLINK answers: No such file or directory
Error talking to the kernel

This test would require the fou module to be loaded before it gets
started.

== Fix
* 26ebd6fed9bb ("selftests: rtnetlink: load fou module for
kci_test_encap_fou() test")

This patch needs to be backported for series after Xenial.

== Test ==
Patch tested directly on the kernel tree, the test will now pass as
expected.

== Regression Potential ==
Low, change limited to the testing tool.

== Original Bug Report ==
The kci_test_encap_fou() from kci_test_encap() in rtnetlink.sh of kselftests/net will fail with non-zero return value, and print:
  "FAIL: can't add fou port 7777, skipping test"

How to reproduce this:
 devdummy="test-dummy0"
 testns="testns"
 ip netns add "$testns"
 ip netns exec "$testns" ip link set lo up
 ip netns exec "$testns" ip link add name "$devdummy" type dummy
 ip netns exec "$testns" ip link set "$devdummy" up
 ip netns exec "$testns" ip fou add port 7777 ipproto 47
RTNETLINK answers: No such file or directory
Error talking to the kernel

This is not a regression, it's the real test result after bug 1890136 has been fixed.

[Po-Hsu Lin (cypressyew)]

It appears this would require the fou module to be loaded before the test.
Patch sent to upstream:
https://<email address hidden>/T/#u

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1891421

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.

[Kleber Sacilotto de Souza (kleber-souza)]

In ADT, this is now failing on:

Focal:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/l/linux/20200901_002313_0bffa@/log.gz

Bionic:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/l/linux/20200901_235003_224c0@/log.gz

[Kelsey Steele (kelsey-steele)]

Failed on Bionic/oracle : 5.4.0-1026.26~18.04.1 : amd64

[Po-Hsu Lin (cypressyew)]

https://lists.ubuntu.com/archives/kernel-team/2020-October/114248.html

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

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-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

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!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

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-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

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!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

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-groovy' to 'verification-done-groovy'. If the problem still exists, change the tag 'verification-needed-groovy' to 'verification-failed-groovy'.

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!

[Po-Hsu Lin (cypressyew)]

Issue has gone on 4.15.0-1059.65 - oracle

[Ian May (ian-may)]

@cypressyew would you be able to confirm this is resolved in -proposed versions of focal and groovy?

Thanks,
Ian

[Po-Hsu Lin (cypressyew)]

Issue has gone on 5.4.0-1030.32-oracle

[Po-Hsu Lin (cypressyew)]

Issue has gone on 5.8.0-31.33

[Po-Hsu Lin (cypressyew)]

This is in Hirsute as well, mark the linux task as fix-released.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 5.4.0-56.62

---------------
linux (5.4.0-56.62) focal; urgency=medium

  * focal/linux: 5.4.0-56.62 -proposed tracker (LP: #1905300)

  * CVE-2020-4788
    - selftests/powerpc: rfi_flush: disable entry flush if present
    - powerpc/64s: flush L1D on kernel entry
    - powerpc/64s: flush L1D after user accesses
    - selftests/powerpc: entry flush test

linux (5.4.0-55.61) focal; urgency=medium

  * focal/linux: 5.4.0-55.61 -proposed tracker (LP: #1903175)

  * Update kernel packaging to support forward porting kernels (LP: #1902957)
    - [Debian] Update for leader included in BACKPORT_SUFFIX

  * Avoid double newline when running insertchanges (LP: #1903293)
    - [Packaging] insertchanges: avoid double newline

  * EFI: Fails when BootCurrent entry does not exist (LP: #1899993)
    - efivarfs: Replace invalid slashes with exclamation marks in dentries.

  * CVE-2020-14351
    - perf/core: Fix race in the perf_mmap_close() function

  * raid10: Block discard is very slow, causing severe delays for mkfs and
    fstrim operations (LP: #1896578)
    - md: add md_submit_discard_bio() for submitting discard bio
    - md/raid10: extend r10bio devs to raid disks
    - md/raid10: pull codes that wait for blocked dev into one function
    - md/raid10: improve raid10 discard request
    - md/raid10: improve discard request for far layout
    - dm raid: fix discard limits for raid1 and raid10
    - dm raid: remove unnecessary discard limits for raid10

  * Bionic: btrfs: kernel BUG at /build/linux-
    eTBZpZ/linux-4.15.0/fs/btrfs/ctree.c:3233! (LP: #1902254)
    - btrfs: drop unnecessary offset_in_page in extent buffer helpers
    - btrfs: extent_io: do extra check for extent buffer read write functions
    - btrfs: extent-tree: kill BUG_ON() in __btrfs_free_extent()
    - btrfs: extent-tree: kill the BUG_ON() in insert_inline_extent_backref()
    - btrfs: ctree: check key order before merging tree blocks

  * Ethernet no link lights after reboot (Intel i225-v 2.5G) (LP: #1902578)
    - igc: Add PHY power management control

  * Undetected Data corruption in MPI workloads that use VSX for reductions on
    POWER9 DD2.1 systems (LP: #1902694)
    - powerpc: Fix undetected data corruption with P9N DD2.1 VSX CI load emulation
    - selftests/powerpc: Make alignment handler test P9N DD2.1 vector CI load
      workaround

  * [20.04 FEAT] Support/enhancement of NVMe IPL (LP: #1902179)
    - s390: nvme ipl
    - s390: nvme reipl
    - s390/ipl: support NVMe IPL kernel parameters

  * uvcvideo: add mapping for HEVC payloads (LP: #1895803)
    - media: uvcvideo: Add mapping for HEVC payloads

  * Focal update: v5.4.73 upstream stable release (LP: #1902115)
    - ibmveth: Switch order of ibmveth_helper calls.
    - ibmveth: Identify ingress large send packets.
    - ipv4: Restore flowi4_oif update before call to xfrm_lookup_route
    - mlx4: handle non-napi callers to napi_poll
    - net: fec: Fix phy_device lookup for phy_reset_after_clk_enable()
    - net: fec: Fix PHY init after phy_reset_after_clk_enable()
    - net: fix pos incrementment in ipv6_route_seq_next
    - net/smc: fix valid DMBE buffer sizes
    - net...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-5.6 - 5.6.0-1035.37

---------------
linux-oem-5.6 (5.6.0-1035.37) focal; urgency=medium

  * focal/linux-oem-5.6: 5.6.0-1035.37 -proposed tracker (LP: #1903149)

  * Packaging resync (LP: #1786013)
    - update dkms package versions

  * drm/i915/dp_mst - wait longer during the clock recovery for Display port
    (LP: #1902861)
    - SAUCE: drm/i915/dp_mst: wait longer during the clock recovery

  * Remove NVMe suspend-to-idle workaround (LP: #1897227)
    - Revert "UBUTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3"
    - Revert "UBUNTU: SAUCE: pci: prevent sk hynix nvme from entering D3"

  * Tiger Lake PMC core driver fixes (LP: #1899883)
    - x86/devicetable: Move x86 specific macro out of generic code
    - x86/cpu: Add consistent CPU match macros
    - platform/x86: Convert to new CPU match macros
    - platform/x86: intel_pmc_core: Add Atom based Jasper Lake (JSL) platform
      support
    - platform/x86: intel_pmc_core: Add debugfs entry to access sub-state
      residencies
    - platform/x86: intel_pmc_core: Add debugfs entry for low power mode status
      registers
    - platform/x86: intel_pmc_core: Refactor the driver by removing redundant code
    - platform/x86: intel_pmc_core: Remove slp_s0 attributes from tgl_reg_map
    - platform/x86: intel_pmc_core: Add an additional parameter to
      pmc_core_lpm_display()
    - platform/x86: intel_pmc_core: Dump low power status registers on an S0ix.y
      failure
    - platform/x86: intel_pmc_core: Add debugfs support to access live status
      registers
    - platform/x86: intel_pmc_core: Relocate pmc_core_*_display() to outside of
      CONFIG_DEBUG_FS
    - platform/x86: intel_pmc_core: Remove duplicate 'if' to create debugfs entry
    - platform/x86: intel_pmc_core: Add slp_s0_offset attribute back to
      tgl_reg_map
    - platform/x86: intel_pmc_core: Make pmc_core_lpm_display() generic for
      platforms that support sub-states
    - platform/x86: intel_pmc_core: Make pmc_core_substate_res_show() generic
    - platform/x86: intel_pmc_core: Change Jasper Lake S0ix debug reg map back to
      ICL
    - platform/x86: intel_pmc_core: avoid unused-function warnings
    - platform/x86: intel_pmc_core: update TGL's LPM0 reg bit map name
    - platform/x86: intel_pmc_core: fix bound check in pmc_core_mphy_pg_show()
    - platform/x86: pmc_core: Use descriptive names for LPM registers
    - platform/x86: intel_pmc_core: Fix TigerLake power gating status map
    - platform/x86: intel_pmc_core: Fix the slp_s0 counter displayed value

  * [SRU][OEM-5.6]Fix no video out from some monitors on amdgpu (LP: #1901135)
    - drm/amd/display: Retry AUX write when fail occurs

  * drm/i915/dp_mst - only read the base capability in DPCD. (LP: #1902613)
    - Revert "UBUNTU: SAUCE: drm/dp_mst: Retrieve extended DPCD caps for topology
      manager"

  * TGL system automatically resumes from s2idle when connecting to a docking
    station with a monitor (LP: #1902577)
    - SAUCE: ACPI: avoid auto-wakeup with an _OSI string

  * Fix non-working NVMe after S3 (LP: #1895718)
    - SAUCE: PCI: Enable ACS quirk on all CML root ports

  * drm...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 5.8.0-31.33

---------------
linux (5.8.0-31.33) groovy; urgency=medium

  * groovy/linux: 5.8.0-31.33 -proposed tracker (LP: #1905299)

  * Groovy 5.8 kernel hangs on boot on CPUs with eLLC (LP: #1903397)
    - drm/i915: Mark ininitial fb obj as WT on eLLC machines to avoid rcu lockup
      during fbdev init

  * CVE-2020-4788
    - selftests/powerpc: rfi_flush: disable entry flush if present
    - powerpc/64s: flush L1D on kernel entry
    - powerpc/64s: flush L1D after user accesses
    - selftests/powerpc: entry flush test

linux (5.8.0-30.32) groovy; urgency=medium

  * groovy/linux: 5.8.0-30.32 -proposed tracker (LP: #1903194)

  * Update kernel packaging to support forward porting kernels (LP: #1902957)
    - [Debian] Update for leader included in BACKPORT_SUFFIX

  * Avoid double newline when running insertchanges (LP: #1903293)
    - [Packaging] insertchanges: avoid double newline

  * EFI: Fails when BootCurrent entry does not exist (LP: #1899993)
    - efivarfs: Replace invalid slashes with exclamation marks in dentries.

  * raid10: Block discard is very slow, causing severe delays for mkfs and
    fstrim operations (LP: #1896578)
    - md: add md_submit_discard_bio() for submitting discard bio
    - md/raid10: extend r10bio devs to raid disks
    - md/raid10: pull codes that wait for blocked dev into one function
    - md/raid10: improve raid10 discard request
    - md/raid10: improve discard request for far layout
    - dm raid: fix discard limits for raid1 and raid10
    - dm raid: remove unnecessary discard limits for raid10

  * Bionic: btrfs: kernel BUG at /build/linux-
    eTBZpZ/linux-4.15.0/fs/btrfs/ctree.c:3233! (LP: #1902254)
    - btrfs: extent_io: do extra check for extent buffer read write functions
    - btrfs: extent-tree: kill BUG_ON() in __btrfs_free_extent()
    - btrfs: extent-tree: kill the BUG_ON() in insert_inline_extent_backref()
    - btrfs: ctree: check key order before merging tree blocks

  * Tiger Lake PMC core driver fixes (LP: #1899883)
    - platform/x86: intel_pmc_core: update TGL's LPM0 reg bit map name
    - platform/x86: intel_pmc_core: fix bound check in pmc_core_mphy_pg_show()
    - platform/x86: pmc_core: Use descriptive names for LPM registers
    - platform/x86: intel_pmc_core: Fix TigerLake power gating status map
    - platform/x86: intel_pmc_core: Fix the slp_s0 counter displayed value

  * drm/i915/dp_mst - System would hang during the boot up. (LP: #1902469)
    - Revert "UBUNTU: SAUCE: drm/i915/display: Fix null deref in
      intel_psr_atomic_check()"
    - drm/i915: Fix encoder lookup during PSR atomic check

  * Undetected Data corruption in MPI workloads that use VSX for reductions on
    POWER9 DD2.1 systems (LP: #1902694)
    - powerpc: Fix undetected data corruption with P9N DD2.1 VSX CI load emulation
    - selftests/powerpc: Make alignment handler test P9N DD2.1 vector CI load
      workaround

  * [20.04 FEAT] Support/enhancement of NVMe IPL (LP: #1902179)
    - s390/ipl: support NVMe IPL kernel parameters

  * uvcvideo: add mapping for HEVC payloads (LP: #1895803)
    - media: uvcvideo: Add mapping for HEVC payloads

  * risc-v 5.8 ...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-126.129

---------------
linux (4.15.0-126.129) bionic; urgency=medium

  * bionic/linux: 4.15.0-126.129 -proposed tracker (LP: #1905305)

  * CVE-2020-4788
    - SAUCE: powerpc/64s: Define MASKABLE_RELON_EXCEPTION_PSERIES_OOL
    - SAUCE: powerpc/64s: move some exception handlers out of line
    - powerpc/64s: flush L1D on kernel entry
    - SAUCE: powerpc: Add a framework for user access tracking
    - powerpc: Implement user_access_begin and friends
    - powerpc: Fix __clear_user() with KUAP enabled
    - powerpc/uaccess: Evaluate macro arguments once, before user access is
      allowed
    - powerpc/64s: flush L1D after user accesses

linux (4.15.0-125.128) bionic; urgency=medium

  * bionic/linux: 4.15.0-125.128 -proposed tracker (LP: #1903137)

  * Update kernel packaging to support forward porting kernels (LP: #1902957)
    - [Debian] Update for leader included in BACKPORT_SUFFIX

  * Avoid double newline when running insertchanges (LP: #1903293)
    - [Packaging] insertchanges: avoid double newline

  * EFI: Fails when BootCurrent entry does not exist (LP: #1899993)
    - efivarfs: Replace invalid slashes with exclamation marks in dentries.

  * CVE-2020-14351
    - perf/core: Fix race in the perf_mmap_close() function

  * raid10: Block discard is very slow, causing severe delays for mkfs and
    fstrim operations (LP: #1896578)
    - md: add md_submit_discard_bio() for submitting discard bio
    - md/raid10: extend r10bio devs to raid disks
    - md/raid10: pull codes that wait for blocked dev into one function
    - md/raid10: improve raid10 discard request
    - md/raid10: improve discard request for far layout

  * Bionic: btrfs: kernel BUG at /build/linux-
    eTBZpZ/linux-4.15.0/fs/btrfs/ctree.c:3233! (LP: #1902254)
    - btrfs: use offset_in_page instead of open-coding it
    - btrfs: use BUG() instead of BUG_ON(1)
    - btrfs: drop unnecessary offset_in_page in extent buffer helpers
    - btrfs: extent_io: do extra check for extent buffer read write functions
    - btrfs: extent-tree: kill BUG_ON() in __btrfs_free_extent()
    - btrfs: extent-tree: kill the BUG_ON() in insert_inline_extent_backref()
    - btrfs: ctree: check key order before merging tree blocks

  * Bionic update: upstream stable patchset 2020-11-04 (LP: #1902943)
    - USB: gadget: f_ncm: Fix NDP16 datagram validation
    - gpio: tc35894: fix up tc35894 interrupt configuration
    - vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock
    - vsock/virtio: stop workers during the .remove()
    - vsock/virtio: add transport parameter to the
      virtio_transport_reset_no_sock()
    - net: virtio_vsock: Enhance connection semantics
    - Input: i8042 - add nopnp quirk for Acer Aspire 5 A515
    - ftrace: Move RCU is watching check after recursion check
    - drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config
    - drivers/net/wan/hdlc_fr: Add needed_headroom for PVC devices
    - drm/sun4i: mixer: Extend regmap max_register
    - net: dec: de2104x: Increase receive ring size for Tulip
    - rndis_host: increase sleep time in the query-response loop
    - nvme-core: get/put ctrl ...

[Po-Hsu Lin (cypressyew)]

The oem-osp1 has now pointed to Bionic 5.4.0 HWE kernel.
Mark this as fix released.