ftrace synthetic_events selftests failure in 5.11

Bug #1925539 reported by Andrea Righi
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Fix Released
Low
Unassigned
Hirsute
Fix Released
Low
Unassigned

Bug Description

[Impact]

The synthetic_events ftrace test is failing in 5.11:

01:58:54 DEBUG| [stdout] # [68] event trigger - test synthetic_events syntax parser errors [FAIL]

This happens because the synthetic_event parser/syntax has been reworked in 5.12 and the selftest has been also updated. However, in 5.11 we got only the commit that updates the test without the corresponding rework in the kernel, therefore the test is failing.

[Fix]

Revert the commit that updates the ftrace synthetic_events selftest.

[Test plan]

Run the linux ftrace selftest to trigger the problem (e.g., make TARGETS=ftrace kselftests).

[Where problems could occur]

This fix reverts a test case, if the kernel receives the ftrace rework via stable updates in the future we may see failures with the same test.

Andrea Righi (arighi)
Changed in linux (Ubuntu Hirsute):
importance: Undecided → Low
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

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 1925539

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.

Changed in linux (Ubuntu):
status: New → Incomplete
Stefan Bader (smb)
Changed in linux (Ubuntu Hirsute):
status: Incomplete → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

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

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!

tags: added: verification-needed-hirsute
Revision history for this message
Andrea Righi (arighi) wrote :

# [73] event trigger - test synthetic_events syntax parser [PASS]
# [74] event trigger - test synthetic_events syntax parser errors [PASS]

^ test is passing now.

tags: added: verification-done-hirsute
removed: verification-needed-hirsute
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (29.0 KiB)

This bug was fixed in the package linux - 5.11.0-18.19

---------------
linux (5.11.0-18.19) hirsute; urgency=medium

  * hirsute/linux: 5.11.0-18.19 -proposed tracker (LP: #1927578)

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

  * Introduce the 465 driver series, fabric-manager, and libnvidia-nscq
    (LP: #1925522)
    - debian/dkms-versions -- add NVIDIA 465 and migrate 450 to 460

  * linux-image-5.0.0-35-generic breaks checkpointing of container
    (LP: #1857257)
    - SAUCE: overlayfs: fix incorrect mnt_id of files opened from map_files

  * Hirsute update: v5.11.17 upstream stable release (LP: #1927535)
    - vhost-vdpa: protect concurrent access to vhost device iotlb
    - Revert "UBUNTU: SAUCE: ovl: Restore vm_file value when lower fs mmap fails"
    - ovl: fix reference counting in ovl_mmap error path
    - coda: fix reference counting in coda_file_mmap error path
    - amd/display: allow non-linear multi-planar formats
    - drm/amdgpu: reserve fence slot to update page table
    - drm/amdgpu: fix GCR_GENERAL_CNTL offset for dimgrey_cavefish
    - gpio: omap: Save and restore sysconfig
    - KEYS: trusted: Fix TPM reservation for seal/unseal
    - vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails
    - pinctrl: lewisburg: Update number of pins in community
    - block: return -EBUSY when there are open partitions in blkdev_reread_part
    - pinctrl: core: Show pin numbers for the controllers with base = 0
    - arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS
    - bpf: Allow variable-offset stack access
    - bpf: Refactor and streamline bounds check into helper
    - bpf: Tighten speculative pointer arithmetic mask
    - perf/x86/intel/uncore: Remove uncore extra PCI dev HSWEP_PCI_PCU_3
    - perf/x86/kvm: Fix Broadwell Xeon stepping in isolation_ucodes[]
    - perf auxtrace: Fix potential NULL pointer dereference
    - perf map: Fix error return code in maps__clone()
    - HID: google: add don USB id
    - HID: asus: Add support for 2021 ASUS N-Key keyboard
    - HID: alps: fix error return code in alps_input_configured()
    - HID cp2112: fix support for multiple gpiochips
    - HID: wacom: Assign boolean values to a bool variable
    - soc: qcom: geni: shield geni_icc_get() for ACPI boot
    - dmaengine: xilinx: dpdma: Fix descriptor issuing on video group
    - dmaengine: xilinx: dpdma: Fix race condition in done IRQ
    - ARM: dts: Fix swapped mmc order for omap3
    - m68k: fix flatmem memory model setup
    - net: geneve: check skb is large enough for IPv4/IPv6 header
    - dmaengine: tegra20: Fix runtime PM imbalance on error
    - s390/entry: save the caller of psw_idle
    - arm64: kprobes: Restore local irqflag if kprobes is cancelled
    - xen-netback: Check for hotplug-status existence before watching
    - cavium/liquidio: Fix duplicate argument
    - csky: change a Kconfig symbol name to fix e1000 build error
    - ia64: fix discontig.c section mismatches
    - ia64: tools: remove duplicate definition of ia64_mf() on ia64
    - x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access
    - net: hso: fix NULL-deref on disconnect regression
    - USB: CDC-ACM...

Changed in linux (Ubuntu Hirsute):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (29.2 KiB)

This bug was fixed in the package linux - 5.11.0-18.19+21.10.1

---------------
linux (5.11.0-18.19+21.10.1) impish; urgency=medium

  * impish/linux: 5.11.0-18.19+21.10.1 -proposed tracker (LP: #1927560)

  * Packaging resync (LP: #1786013)
    - [Packaging] update update.conf
    - update dkms package versions

  [ Ubuntu: 5.11.0-18.19 ]

  * hirsute/linux: 5.11.0-18.19 -proposed tracker (LP: #1927578)
  * Packaging resync (LP: #1786013)
    - update dkms package versions
  * Introduce the 465 driver series, fabric-manager, and libnvidia-nscq
    (LP: #1925522)
    - debian/dkms-versions -- add NVIDIA 465 and migrate 450 to 460
  * linux-image-5.0.0-35-generic breaks checkpointing of container
    (LP: #1857257)
    - SAUCE: overlayfs: fix incorrect mnt_id of files opened from map_files
  * Hirsute update: v5.11.17 upstream stable release (LP: #1927535)
    - vhost-vdpa: protect concurrent access to vhost device iotlb
    - Revert "UBUNTU: SAUCE: ovl: Restore vm_file value when lower fs mmap fails"
    - ovl: fix reference counting in ovl_mmap error path
    - coda: fix reference counting in coda_file_mmap error path
    - amd/display: allow non-linear multi-planar formats
    - drm/amdgpu: reserve fence slot to update page table
    - drm/amdgpu: fix GCR_GENERAL_CNTL offset for dimgrey_cavefish
    - gpio: omap: Save and restore sysconfig
    - KEYS: trusted: Fix TPM reservation for seal/unseal
    - vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails
    - pinctrl: lewisburg: Update number of pins in community
    - block: return -EBUSY when there are open partitions in blkdev_reread_part
    - pinctrl: core: Show pin numbers for the controllers with base = 0
    - arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS
    - bpf: Allow variable-offset stack access
    - bpf: Refactor and streamline bounds check into helper
    - bpf: Tighten speculative pointer arithmetic mask
    - perf/x86/intel/uncore: Remove uncore extra PCI dev HSWEP_PCI_PCU_3
    - perf/x86/kvm: Fix Broadwell Xeon stepping in isolation_ucodes[]
    - perf auxtrace: Fix potential NULL pointer dereference
    - perf map: Fix error return code in maps__clone()
    - HID: google: add don USB id
    - HID: asus: Add support for 2021 ASUS N-Key keyboard
    - HID: alps: fix error return code in alps_input_configured()
    - HID cp2112: fix support for multiple gpiochips
    - HID: wacom: Assign boolean values to a bool variable
    - soc: qcom: geni: shield geni_icc_get() for ACPI boot
    - dmaengine: xilinx: dpdma: Fix descriptor issuing on video group
    - dmaengine: xilinx: dpdma: Fix race condition in done IRQ
    - ARM: dts: Fix swapped mmc order for omap3
    - m68k: fix flatmem memory model setup
    - net: geneve: check skb is large enough for IPv4/IPv6 header
    - dmaengine: tegra20: Fix runtime PM imbalance on error
    - s390/entry: save the caller of psw_idle
    - arm64: kprobes: Restore local irqflag if kprobes is cancelled
    - xen-netback: Check for hotplug-status existence before watching
    - cavium/liquidio: Fix duplicate argument
    - csky: change a Kconfig symbol name to fix e1000 build error
    - ia64: fix discontig.c section mis...

Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

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!

tags: added: verification-needed-focal
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