linux-azure: main(): sched_setscheduler(): Operation not permitted

[Marcelo Cerri]

[Impact]

We have several regressions with RT and ADT with the azure kernels. The tests seem to fail when calling sched_setscheduler() or with related operations. This was probably introduced by LP:#1939024 that enabled CONFIG_RT_GROUP_SCHED.

We should revert this change until we better understand the impact it can cause.

* ubuntu_ltp_stable

The ltp syscall regression test is failing for all the azure kernels with:

main(): sched_setscheduler(): Operation not permitted

http://10.246.75.167/2021.08.16/hirsute/linux-azure/5.11.0-1014.15/sru-azure-azure-Standard_A2_v2-ubuntu_ltp_stable-log.txt

* ubuntu_qrt_apparmor

Error: syscall_setscheduler failed. Test 'syscall_setscheduler -- unconfined' was expected to 'pass'. Reason for failure 'FAIL: Can't set SCHED_RR: Operation not permitted'

Error: syscall_setscheduler failed. Test 'syscall_setscheduler -- unconfined' was expected to 'pass'. Reason for failure 'FAIL: Can't set SCHED_RR: Operation not permitted'

* systemd ADT (Hirsute)

https://autopkgtest.ubuntu.com/results/autopkgtest-hirsute/hirsute/amd64/s/systemd/20210827_233206_a2599@/log.gz

[Test Plan]

The kernel should pass the regression and adt tests.

[Where problems could occur]

[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!

[Marcelo Cerri (mhcerri)]

Confirmed with the kernel regression tests that the problem was solved. Marking verification as done.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure-5.11 - 5.11.0-1015.16~20.04.1

---------------
linux-azure-5.11 (5.11.0-1015.16~20.04.1) focal; urgency=medium

  * focal/linux-azure-5.11: 5.11.0-1015.16~20.04.1 -proposed tracker
    (LP: #1942125)

  [ Ubuntu: 5.11.0-1015.16 ]

  * hirsute/linux-azure: 5.11.0-1015.16 -proposed tracker (LP: #1942116)
  * linux-azure: main(): sched_setscheduler(): Operation not permitted
    (LP: #1942092)
    - Revert "UBUNTU: [Config] azure: CONFIG_RT_GROUP_SCHED=y"
  * hirsute/linux: 5.11.0-34.36 -proposed tracker (LP: #1941766)
  * Server boot failure after adding checks for ACPI IRQ override (LP: #1941657)
    - Revert "ACPI: resources: Add checks for ACPI IRQ override"

linux-azure-5.11 (5.11.0-1014.15~20.04.1) focal; urgency=medium

  * focal/linux-azure-5.11: 5.11.0-1014.15~20.04.1 -proposed tracker
    (LP: #1939759)

  * Hirsute update: upstream stable patchset 2021-07-28 (LP: #1938340)
    - updateconfigs for PSTORE_BLK (BROKEN)

  [ Ubuntu: 5.11.0-1014.15 ]

  * hirsute/linux-azure: 5.11.0-1014.15 -proposed tracker (LP: #1939760)
  * Hirsute update: upstream stable patchset 2021-07-19 (LP: #1936863)
    - [Config] enable CONFIG_SYSTEM_REVOCATION_LIST
    - [Config] update annotations for XILINX_ZYNQMP_DPDMA
  * Hirsute update: upstream stable patchset 2021-07-28 (LP: #1938340)
    - updateconfigs for PSTORE_BLK (BROKEN)
  * Support builtin revoked certificates (LP: #1932029)
    - [Config] Configure CONFIG_SYSTEM_REVOCATION_KEYS with revoked keys
  * linux-azure Enable CONFIG_RT_GROUP_SCHED (LP: #1939024)
    - [Config] azure: CONFIG_RT_GROUP_SCHED=y
  * hirsute/linux: 5.11.0-33.35 -proposed tracker (LP: #1940101)
  * libvirtd fails to create VM (LP: #1940107)
    - sched: Stop PF_NO_SETAFFINITY from being inherited by various init system
      threads
  * hirsute/linux: 5.11.0-32.34 -proposed tracker (LP: #1939769)
  * Packaging resync (LP: #1786013)
    - debian/dkms-versions -- update from kernel-versions (main/2021.08.16)
  * CVE-2021-3656
    - SAUCE: KVM: nSVM: always intercept VMLOAD/VMSAVE when nested
  * CVE-2021-3653
    - SAUCE: KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl
  * [regression] USB device is not detected during boot (LP: #1939638)
    - SAUCE: Revert "usb: core: reduce power-on-good delay time of root hub"
  * Support builtin revoked certificates (LP: #1932029)
    - [Packaging] build canonical-revoked-certs.pem from branch/arch certs
    - [Packaging] Revoke 2012 UEFI signing certificate as built-in
    - [Config] Configure CONFIG_SYSTEM_REVOCATION_KEYS with revoked keys
  * Support importing mokx keys into revocation list from the mok table
    (LP: #1928679)
    - SAUCE: integrity: add informational messages when revoking certs
  * Support importing mokx keys into revocation list from the mok table
    (LP: #1928679) // CVE-2020-26541 when certificates are revoked via
    MokListXRT.
    - SAUCE: integrity: Load mokx certs from the EFI MOK config table
  * Include product_sku info to modalias (LP: #1938143)
    - firmware/dmi: Include product_sku info to modalias
  * Fix Ethernet not working by hotplug - RTL8106E (LP: #1930645)
    - net: phy: rename PHY_IG...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 5.4.0-1058.60

---------------
linux-azure (5.4.0-1058.60) focal; urgency=medium

  * focal/linux-azure: 5.4.0-1058.60 -proposed tracker (LP: #1942117)

  * linux-azure: main(): sched_setscheduler(): Operation not permitted
    (LP: #1942092)
    - Revert "UBUNTU: [Config] azure: CONFIG_RT_GROUP_SCHED=y"

  [ Ubuntu: 5.4.0-84.94 ]

  * focal/linux: 5.4.0-84.94 -proposed tracker (LP: #1941767)
  * Server boot failure after adding checks for ACPI IRQ override (LP: #1941657)
    - Revert "ACPI: resources: Add checks for ACPI IRQ override"

linux-azure (5.4.0-1057.59) focal; urgency=medium

  * focal/linux-azure: 5.4.0-1057.59 -proposed tracker (LP: #1939775)

  * Focal update: v5.4.129 upstream stable release (LP: #1936242)
    - [Config] enable CONFIG_SYSTEM_REVOCATION_LIST

  * linux-azure Enable CONFIG_RT_GROUP_SCHED (LP: #1939024)
    - [Config] azure: CONFIG_RT_GROUP_SCHED=y

  * Sync to SGX 1.33.2 (LP: #1936240)
    - SAUCE: ubuntu/sgx: backport fixes to 1.33
    - SAUCE: ubuntu/sgx: missing synchronize_srcu call before cleanup
    - SAUCE: ubuntu/sgx: fix a synchronization issue for mmput
    - SAUCE: ubuntu/sgx: look for exported symbols in Makefile
    - SAUCE: ubuntu/sgx: hardening compiler options
    - SAUCE: ubuntu/sgx: Fix signed integer overflow on shift
    - SAUCE: ubuntu/sgx: move use space header
    - SAUCE: ubuntu/sgx: Version 1.33.2

  [ Ubuntu: 5.4.0-83.93 ]

  * focal/linux: 5.4.0-83.93 -proposed tracker (LP: #1940159)
  * fails to launch linux L2 guests on AMD (LP: #1940134) // CVE-2021-3653
    - KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl
      (CVE-2021-3653)
  * fails to launch linux L2 guests on AMD (LP: #1940134)
    - SAUCE: Revert "UBUNTU: SAUCE: KVM: nSVM: avoid picking up unsupported bits
      from L2 in int_ctl"

  [ Ubuntu: 5.4.0-82.92 ]

  * focal/linux: 5.4.0-82.92 -proposed tracker (LP: #1939799)
  * Packaging resync (LP: #1786013)
    - debian/dkms-versions -- update from kernel-versions (main/2021.08.16)
  * CVE-2021-3656
    - SAUCE: KVM: nSVM: always intercept VMLOAD/VMSAVE when nested
  * CVE-2021-3653
    - SAUCE: KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl
  * [regression] USB device is not detected during boot (LP: #1939638)
    - SAUCE: Revert "usb: core: reduce power-on-good delay time of root hub"
  * dev_forward_skb: do not scrub skb mark within the same name space
    (LP: #1935040)
    - dev_forward_skb: do not scrub skb mark within the same name space
  * XPS 9510 (TGL) Screen Brightness could not be changed (LP: #1933566)
    - SAUCE: drm/i915: Force DPCD backlight mode for Dell XPS 9510(TGL)
  * Acer Aspire 5 sound driver issues (LP: #1930188)
    - ALSA: hda/realtek: headphone and mic don't work on an Acer laptop
  * Sony Dualshock 4 usb dongle crashes the whole system (LP: #1935846)
    - HID: sony: Workaround for DS4 dongle hotplug kernel crash.
  * [21.10 FEAT] KVM: Provide a secure guest indication (LP: #1933173)
    - s390/uv: add prot virt guest/host indication files
    - s390/uv: fix prot virt host indication compilation
  * Skip rtcpie test in kselftests/timers if the default RTC device does ...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure - 5.11.0-1015.16

---------------
linux-azure (5.11.0-1015.16) hirsute; urgency=medium

  * hirsute/linux-azure: 5.11.0-1015.16 -proposed tracker (LP: #1942116)

  * linux-azure: main(): sched_setscheduler(): Operation not permitted
    (LP: #1942092)
    - Revert "UBUNTU: [Config] azure: CONFIG_RT_GROUP_SCHED=y"

  [ Ubuntu: 5.11.0-34.36 ]

  * hirsute/linux: 5.11.0-34.36 -proposed tracker (LP: #1941766)
  * Server boot failure after adding checks for ACPI IRQ override (LP: #1941657)
    - Revert "ACPI: resources: Add checks for ACPI IRQ override"

linux-azure (5.11.0-1014.15) hirsute; urgency=medium

  * hirsute/linux-azure: 5.11.0-1014.15 -proposed tracker (LP: #1939760)

  * Hirsute update: upstream stable patchset 2021-07-19 (LP: #1936863)
    - [Config] enable CONFIG_SYSTEM_REVOCATION_LIST
    - [Config] update annotations for XILINX_ZYNQMP_DPDMA

  * Hirsute update: upstream stable patchset 2021-07-28 (LP: #1938340)
    - updateconfigs for PSTORE_BLK (BROKEN)

  * Support builtin revoked certificates (LP: #1932029)
    - [Config] Configure CONFIG_SYSTEM_REVOCATION_KEYS with revoked keys

  * linux-azure Enable CONFIG_RT_GROUP_SCHED (LP: #1939024)
    - [Config] azure: CONFIG_RT_GROUP_SCHED=y

  [ Ubuntu: 5.11.0-33.35 ]

  * hirsute/linux: 5.11.0-33.35 -proposed tracker (LP: #1940101)
  * libvirtd fails to create VM (LP: #1940107)
    - sched: Stop PF_NO_SETAFFINITY from being inherited by various init system
      threads

  [ Ubuntu: 5.11.0-32.34 ]

  * hirsute/linux: 5.11.0-32.34 -proposed tracker (LP: #1939769)
  * Packaging resync (LP: #1786013)
    - debian/dkms-versions -- update from kernel-versions (main/2021.08.16)
  * CVE-2021-3656
    - SAUCE: KVM: nSVM: always intercept VMLOAD/VMSAVE when nested
  * CVE-2021-3653
    - SAUCE: KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl
  * [regression] USB device is not detected during boot (LP: #1939638)
    - SAUCE: Revert "usb: core: reduce power-on-good delay time of root hub"
  * Support builtin revoked certificates (LP: #1932029)
    - [Packaging] build canonical-revoked-certs.pem from branch/arch certs
    - [Packaging] Revoke 2012 UEFI signing certificate as built-in
    - [Config] Configure CONFIG_SYSTEM_REVOCATION_KEYS with revoked keys
  * Support importing mokx keys into revocation list from the mok table
    (LP: #1928679)
    - SAUCE: integrity: add informational messages when revoking certs
  * Support importing mokx keys into revocation list from the mok table
    (LP: #1928679) // CVE-2020-26541 when certificates are revoked via
    MokListXRT.
    - SAUCE: integrity: Load mokx certs from the EFI MOK config table
  * Include product_sku info to modalias (LP: #1938143)
    - firmware/dmi: Include product_sku info to modalias
  * Fix Ethernet not working by hotplug - RTL8106E (LP: #1930645)
    - net: phy: rename PHY_IGNORE_INTERRUPT to PHY_MAC_INTERRUPT
    - SAUCE: r8169: Use PHY_POLL when RTL8106E enable ASPM
  * [SRU][H/OEM-5.10/OEM-5.13/U] Fix system hang after unplug tbt dock
    (LP: #1938689)
    - SAUCE: igc: fix page fault when thunderbolt is unplugged
  * [Regression] Audio card [8086:9d71] not detec...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure-5.4 - 5.4.0-1058.60~18.04.1

---------------
linux-azure-5.4 (5.4.0-1058.60~18.04.1) bionic; urgency=medium

  * bionic/linux-azure-5.4: 5.4.0-1058.60~18.04.1 -proposed tracker
    (LP: #1942138)

  [ Ubuntu: 5.4.0-1058.60 ]

  * focal/linux-azure: 5.4.0-1058.60 -proposed tracker (LP: #1942117)
  * linux-azure: main(): sched_setscheduler(): Operation not permitted
    (LP: #1942092)
    - Revert "UBUNTU: [Config] azure: CONFIG_RT_GROUP_SCHED=y"
  * focal/linux: 5.4.0-84.94 -proposed tracker (LP: #1941767)
  * Server boot failure after adding checks for ACPI IRQ override (LP: #1941657)
    - Revert "ACPI: resources: Add checks for ACPI IRQ override"

linux-azure-5.4 (5.4.0-1057.59~18.04.1) bionic; urgency=medium

  * bionic/linux-azure-5.4: 5.4.0-1057.59~18.04.1 -proposed tracker
    (LP: #1939774)

  [ Ubuntu: 5.4.0-1057.59 ]

  * focal/linux-azure: 5.4.0-1057.59 -proposed tracker (LP: #1939775)
  * Focal update: v5.4.129 upstream stable release (LP: #1936242)
    - [Config] enable CONFIG_SYSTEM_REVOCATION_LIST
  * linux-azure Enable CONFIG_RT_GROUP_SCHED (LP: #1939024)
    - [Config] azure: CONFIG_RT_GROUP_SCHED=y
  * Sync to SGX 1.33.2 (LP: #1936240)
    - SAUCE: ubuntu/sgx: backport fixes to 1.33
    - SAUCE: ubuntu/sgx: missing synchronize_srcu call before cleanup
    - SAUCE: ubuntu/sgx: fix a synchronization issue for mmput
    - SAUCE: ubuntu/sgx: look for exported symbols in Makefile
    - SAUCE: ubuntu/sgx: hardening compiler options
    - SAUCE: ubuntu/sgx: Fix signed integer overflow on shift
    - SAUCE: ubuntu/sgx: move use space header
    - SAUCE: ubuntu/sgx: Version 1.33.2
  * focal/linux: 5.4.0-83.93 -proposed tracker (LP: #1940159)
  * fails to launch linux L2 guests on AMD (LP: #1940134) // CVE-2021-3653
    - KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl
      (CVE-2021-3653)
  * fails to launch linux L2 guests on AMD (LP: #1940134)
    - SAUCE: Revert "UBUNTU: SAUCE: KVM: nSVM: avoid picking up unsupported bits
      from L2 in int_ctl"
  * focal/linux: 5.4.0-82.92 -proposed tracker (LP: #1939799)
  * Packaging resync (LP: #1786013)
    - debian/dkms-versions -- update from kernel-versions (main/2021.08.16)
  * CVE-2021-3656
    - SAUCE: KVM: nSVM: always intercept VMLOAD/VMSAVE when nested
  * CVE-2021-3653
    - SAUCE: KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl
  * [regression] USB device is not detected during boot (LP: #1939638)
    - SAUCE: Revert "usb: core: reduce power-on-good delay time of root hub"
  * dev_forward_skb: do not scrub skb mark within the same name space
    (LP: #1935040)
    - dev_forward_skb: do not scrub skb mark within the same name space
  * XPS 9510 (TGL) Screen Brightness could not be changed (LP: #1933566)
    - SAUCE: drm/i915: Force DPCD backlight mode for Dell XPS 9510(TGL)
  * Acer Aspire 5 sound driver issues (LP: #1930188)
    - ALSA: hda/realtek: headphone and mic don't work on an Acer laptop
  * Sony Dualshock 4 usb dongle crashes the whole system (LP: #1935846)
    - HID: sony: Workaround for DS4 dongle hotplug kernel crash.
  * [21.10 FEAT] KVM: Provide a secure guest indication (LP: #1933173)
   ...