** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1753941
Title:
ubuntu_bpf_jit test failed on Bionic s390x systems
Status in ubuntu-kernel-tests:
Invalid
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Committed
Bug description:
== SRU Justification ==
The ubuntu_bpf_jit test will fail with the following 5 test cases:
test_bpf: #292 BPF_MAXINSNS: Ctx heavy transformations FAIL to prog_create
err=-524 len=4096
test_bpf: #293 BPF_MAXINSNS: Call heavy transformations FAIL to prog_create
err=-524 len=4096
test_bpf: #298 BPF_MAXINSNS: ld_abs+get_processor_id FAIL to prog_create
err=-524 len=4096
test_bpf: #299 BPF_MAXINSNS: ld_abs+vlan_push/pop FAIL to select_runtime
err=-524
test_bpf: #300 BPF_MAXINSNS: jump around ld_abs FAIL to select_runtime
err=-524
test_bpf: Summary: 337 PASSED, 5 FAILED, [329/329 JIT'ed]
And modprobe error can be found in the report as well:
modprobe: ERROR: could not insert 'test_bpf': Invalid argument
Issue can be reproduce on both zVM and Ubuntu on LPAR s390x systems.
== Fix ==
3203c9010060 ("test_bpf: flag tests that cannot be jited on s390")
A backport of the fix is needed to compile out "BPF_MAXINSNS:
ld_abs+vlan_push/pop" and "BPF_MAXINSNS: jump around ld_abs'
testcases. They have been removed from lib/test_bpf.c on 93731ef086ce
("bpf: migrate ebpf ld_abs/ld_ind tests to test_verifier"), however,
backporting this patch would require pulling other patches as prereqs.
== Regression Potential ==
None, the fix is in a test module and only masks failing testcases on s390
only.
== Test Case ==
Load the test_bpf module, it should load without errors.
Not sure if this is related to bug 1751234 (error on AMD64 system is
different)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-11-generic 4.15.0-11.12
ProcVersionSignature: Ubuntu 4.15.0-11.12-generic 4.15.5
Uname: Linux 4.15.0-11-generic s390x
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
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': 'aplay'
ApportVersion: 2.20.8-0ubuntu10
Architecture: s390x
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211
not found.
CurrentDmesg:
Date: Wed Mar 7 08:13:51 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
ProcKernelCmdLine: root=/dev/mapper/kl02vg01-root crashkernel=196M
BOOT_IMAGE=0
RelatedPackageVersions:
linux-restricted-modules-4.15.0-11-generic N/A
linux-backports-modules-4.15.0-11-generic N/A
linux-firmware 1.172
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1753941/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
