Public bug reported:
Issue found on Focal 5.8.0-33, with P8 node dryden
The ftracetest will timeout with:
[17] event tracing - enable/disable with subsystem level files
$ sudo ./ftracetest
=== Ftrace unit tests ===
[1] Basic trace file check [PASS]
[2] Basic test for tracers [PASS]
[3] Basic trace clock test [PASS]
[4] Basic event tracing check [PASS]
[5] Change the ringbuffer size [PASS]
[6] Snapshot and tracing setting [PASS]
[7] trace_pipe and trace_marker [PASS]
[8] Test ftrace direct functions against tracers [UNRESOLVED]
[9] Test ftrace direct functions against kprobes [UNRESOLVED]
[10] Generic dynamic event - add/remove kprobe events [PASS]
[11] Generic dynamic event - add/remove synthetic events [PASS]
[12] Generic dynamic event - selective clear (compatibility) [PASS]
[13] Generic dynamic event - generic clear event [PASS]
[14] event tracing - enable/disable with event level files [PASS]
[15] event tracing - restricts events based on pid notrace filtering [PASS]
[16] event tracing - restricts events based on pid [PASS]
[17] event tracing - enable/disable with subsystem level files
(test timeout here)
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.8.0-33-generic 5.8.0-33.36~20.04.1
ProcVersionSignature: User Name 5.8.0-33.36~20.04.1-generic 5.8.17
Uname: Linux 5.8.0-33-generic ppc64le
.sys.firmware.opal.msglog: Error: [Errno 13] Permission denied:
'/sys/firmware/opal/msglog'
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: ppc64el
CasperMD5CheckResult: skip
Date: Tue Dec 29 05:11:04 2020
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcLoadAvg: 1.19 1.24 2.68 3/1472 929062
ProcLocks:
1: POSIX ADVISORY WRITE 2447 00:19:576 0 EOF
2: POSIX ADVISORY WRITE 2720 00:19:597 0 EOF
3: FLOCK ADVISORY WRITE 2685 00:19:647 0 EOF
ProcSwaps:
Filename Type Size Used
Priority
/swap.img file 8388544 0
-2
ProcVersion: Linux version 5.8.0-33-generic (buildd@bos02-ppc64el-009) (gcc
(User Name 9.3.0-17ubuntu1~20.04) 9.3.0, GNU ld (GNU Binutils for User Name)
2.34) #36~20.04.1-User Name SMP Wed Dec 9 16:57:18 UTC 2020
SourcePackage: linux-signed-hwe-5.8
UpgradeStatus: No upgrade log present (probably fresh install)
VarLogDump_list: total 0
cpu_cores: Number of cores present = 20
cpu_coreson: Number of cores online = 20
cpu_smt: SMT=8
** Affects: linux-signed-hwe-5.8 (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug focal ppc64el uec-images
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https://bugs.launchpad.net/bugs/1909521
Title:
ftrace test from ubuntu_kernel_selftests timeout on F-5.8 P8
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