** Changed in: ubuntu-kernel-tests
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1768452
Title:
Insert test_bpf module will report 4 failures for ubuntu_bpf_jit on X
s390x
Status in ubuntu-kernel-tests:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Disco:
Fix Released
Bug description:
== SRU Justification ==
In the ubuntu_bpf_jit test, it will insert the test_bpf module to perform the
test. There will be 4 failures reported on s390x instances by the test, 3 of
them were simply because they cannot be jited on s390x:
* test_bpf: #243 BPF_MAXINSNS: Ctx heavy transformations FAIL to
prog_create err=-524 len=4096
* test_bpf: #244 BPF_MAXINSNS: Call heavy transformations FAIL to
prog_create err=-524 len=4096
* test_bpf: #249 BPF_MAXINSNS: ld_abs+get_processor_id FAIL to prog_create
err=-524 len=4096
(For another failure "ld_abs+vlan_push/pop" please check bug 1868243)
== Fix ==
* 3203c901 (test_bpf: flag tests that cannot be jited on s390)
Only Xenial needs this patch, and it needs to be backported to Xenial
as some test case does not exist.
== Test ==
Test kernel could be found here:
https://people.canonical.com/~phlin/kernel/lp-1768452-bpf-jit/
The test will be marked as pass with the patched kernel:
test_bpf: #243 BPF_MAXINSNS: Ctx heavy transformations PASS
test_bpf: #244 BPF_MAXINSNS: Call heavy transformations PASS
test_bpf: #249 BPF_MAXINSNS: ld_abs+get_processor_id PASS
== Regression Potential ==
Low, change limited to the test_bpf module itself and specific to s390x, no
impact to real functions.
== Original Bug Report ==
After the test_bpf insert issue for Xenial was fixed in bug 1765698
But it looks like the s390x needs some extra work.
$ sudo modprobe test_bpf
modprobe: ERROR: could not insert 'test_bpf': Invalid argument
4 tests failed here:
test_bpf: #243 BPF_MAXINSNS: Ctx heavy transformations FAIL to prog_create
err=-524 len=4096
test_bpf: #244 BPF_MAXINSNS: Call heavy transformations FAIL to prog_create
err=-524 len=4096
test_bpf: #249 BPF_MAXINSNS: ld_abs+get_processor_id FAIL to prog_create
err=-524 len=4096
test_bpf: #250 BPF_MAXINSNS: ld_abs+vlan_push/pop FAIL to select_runtime
err=-524
Complete test result:
https://pastebin.ubuntu.com/p/zMDwVjwF7X/
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-123-generic 4.4.0-123.147
ProcVersionSignature: Ubuntu 4.4.0-123.147-generic 4.4.128
Uname: Linux 4.4.0-123-generic s390x
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code
2: ls: cannot access '/dev/snd/': No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: s390x
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211
not found.
Date: Wed May 2 03:45:22 2018
HibernationDevice: RESUME=UUID=f578fa27-1d57-41c9-bb1d-7ff64c1c9345
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
ProcKernelCmdLine: root=UUID=f26894a2-496d-4891-aa9a-f66344c77779
crashkernel=196M BOOT_IMAGE=0
RelatedPackageVersions:
linux-restricted-modules-4.4.0-123-generic N/A
linux-backports-modules-4.4.0-123-generic N/A
linux-firmware 1.157.17
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
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