ubuntu-kernel-tests

net test from ubuntu_kernel_selftests / ubuntu_bpf failed to build on F-OEM-5.10 (Cannot find a vmlinux for VMLINUX_BTF)

Bug #1919122 reported by Po-Hsu Lin
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
New
Undecided
Unassigned
linux-oem-5.10 (Ubuntu)
Invalid
Undecided
Unassigned
Focal
Confirmed
Undecided
Unassigned

Bug Description

Issue found on 5.10.0-1017.18-oem

When trying to build the prerequisite bpf test for the net test, the build failed with:
 *** Cannot find a vmlinux for VMLINUX_BTF at any of " ../../../../vmlinux /sys/kernel/btf/vmlinux /boot/vmlinux-5.10.0-1017-oem". Stop.

This should not be considered as a regression as we didn't add ubuntu_kernel_selftest back to the test plan until recently, so it's not tested for a while.

Po-Hsu Lin (cypressyew)
tags: added: 5.10 focal oem ubuntu-kernel-selftests
tags: added: sru-20210222
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

The bpf test build has been disabled in G/H, ref: bug 1908144

Po-Hsu Lin (cypressyew)
summary: - net test from ubuntu_kernel_selftests failed to build on F-OEM-5.10
+ net test from ubuntu_kernel_selftests / ubuntu_bpf failed to build on
+ F-OEM-5.10
Revision history for this message
Kelsey Steele (kelsey-steele) wrote : Re: net test from ubuntu_kernel_selftests / ubuntu_bpf failed to build on F-OEM-5.10

Also failed on Focal/liunx 5.8.0-49.55~20.04.1 lowlatency

stdout:
make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
make --no-builtin-rules ARCH=x86 -C ../../.. headers_install
make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
  INSTALL ./usr/include
make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/bpf'
make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/bpf'
make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
stderr:
Makefile:148: *** Cannot find a vmlinux for VMLINUX_BTF at any of " ../../../../vmlinux /sys/kernel/btf/vmlinux /boot/vmlinux-5.8.0-49-lowlatency". Stop.
make: *** [Makefile:159: all] Error 2

tags: added: amd64 sru-20210315
Kelsey Steele (kelsey-steele)
tags: added: 5.8 hwe
Timo Aaltonen (tjaalton)
Changed in linux-oem-5.10 (Ubuntu):
status: New → Invalid
Revision history for this message
Kelsey Steele (kelsey-steele) wrote :

Also found on Focal/riscv-5.8 5.8.0-21.23~20.04.1

tags: added: riscv
Revision history for this message
Krzysztof Kozlowski (krzk) wrote :

focal/aws-5.8 5.8.0-1031.33~20.04.1

tags: added: sru-20210412
Kelsey Steele (kelsey-steele)
tags: added: hwe-5.8
Revision history for this message
Ian May (ian-may) wrote :

focal/gcp 5.8.0-1029.30~20.04.1

Krzysztof Kozlowski (krzk)
tags: added: sru-20210510
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in linux-oem-5.10 (Ubuntu Focal):
status: New → Confirmed
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

With net test keep building without bpf [1], this is now causing issue to udpgro.sh and udpgro_bench.sh

 # selftests: net: udpgro_bench.sh
 # Missing xdp_dummy helper. Build bpf selftest first
 not ok 23 selftests: net: udpgro_bench.sh # exit=255
 # selftests: net: udpgro.sh
 # Missing xdp_dummy helper. Build bpf selftest first
 not ok 24 selftests: net: udpgro.sh # exit=255

[1] https://kernel.ubuntu.com/git/ubuntu/autotest-client-tests.git/commit/?id=c4f76a0f87d965fa9286331e9e342f4ca5211436

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

A second thought, I will split those two failures in comment #7 to a new bug, make it easier to track.

Krzysztof Kozlowski (krzk)
tags: added: aws sru-20210621
Po-Hsu Lin (cypressyew)
summary: net test from ubuntu_kernel_selftests / ubuntu_bpf failed to build on
- F-OEM-5.10
+ F-OEM-5.10 (Cannot find a vmlinux for VMLINUX_BTF)
tags: added: sru-20210719
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Spotted on linux-oem-5.14/5.14.0-1004.4

tags: added: 5.14 sru-20210906
tags: removed: 5.14
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