Description yunhe123 2023-01-05 15:29:38 UTC

Description of problem:
社区版kernel-selftest测试套case:ftrace.ftracetest run fail，日志如下：
TAP version 13
1..1
# selftests: ftrace: ftracetest
# === Ftrace unit tests ===
# [74] event trigger - test synthetic_events syntax parser errors	[FAIL]
 # of failed:  1


环境信息：
测试环境：社区ecs
cpu信息：
#lscpu
Architecture:        aarch64
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per cluster: 4
Socket(s):           1
Cluster(s):          1
NUMA node(s):        1
Vendor ID:           ARM
BIOS Vendor ID:      Alibaba Cloud
Model:               1
Model name:          Neoverse-N1
BIOS Model name:     virt-rhel7.6.0
Stepping:            r3p1
BogoMIPS:            50.00
NUMA node0 CPU(s):   0-3
Flags:               fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp ssbs

内存信息：
# free -h
              total        used        free      shared  buff/cache   available
Mem:           14Gi       274Mi        13Gi        11Mi       560Mi        14Gi
Swap:            0B          0B          0B


版本信息：
# cat /etc/os-release
NAME="Anolis OS"
VERSION="8.6"
ID="anolis"
ID_LIKE="rhel fedora centos"
VERSION_ID="8.6"
PLATFORM_ID="platform:an8"
PRETTY_NAME="Anolis OS 8.6"
ANSI_COLOR="0;31"
HOME_URL="https://openanolis.cn/"


手动调试日志如下，截取部分：
for t in $TEST_CASES
+ run_test /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
++ basename /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
+ local testname=trigger-synthetic_event_syntax_errors.tc
+ testcase /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
+ CASENO=1
++ grep '^#[ \t]*description:' /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
++ cut -f2- -d:
+ desc=' event trigger - test synthetic_events syntax parser errors'
+ prlog -n '[1] event trigger - test synthetic_events syntax parser errors'
+ newline='\n'
+ '[' -n = -n ']'
+ newline=
+ shift
+ printf '[1] event trigger - test synthetic_events syntax parser errors'
[1] event trigger - test synthetic_events syntax parser errors+ '[' /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//ftracetest.log ']'
+ printf '[1] event trigger - test synthetic_events syntax parser errors'
+ strip_esc
+ sed -E 's/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g'
+ '[' '!' -z /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//ftracetest.log ']'
++ mktemp /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//1-trigger-synthetic_event_syntax_errors.tc-log.XXXXXX
+ local testlog=/tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//1-trigger-synthetic_event_syntax_errors.tc-log.dgLUGm
++ mktemp -d /tmp/ftracetest-dir.XXXXXX
+ export TMPDIR=/tmp/ftracetest-dir.qfvWer
+ TMPDIR=/tmp/ftracetest-dir.qfvWer
+ export FTRACETEST_ROOT=/tmp/tone/run/kernel-selftests/ftrace
+ FTRACETEST_ROOT=/tmp/tone/run/kernel-selftests/ftrace
+ echo 'execute: /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc'
+ SIG_RESULT=0
+ '[' 1 -eq -1 ']'
+ '[' -z /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//ftracetest.log ']'
+ '[' 1 -ge 3 ']'
+ '[' 1 -eq 2 ']'
+ __run_test /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
+ eval_result 1
+ case $1 in
+ prlog '       [\033[31mFAIL\033[0m]'
+ newline='\n'
+ '[' ' [\033[31mFAIL\033[0m]' = -n ']'
+ printf '      [\033[31mFAIL\033[0m]\n'
        [FAIL]
+ '[' /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//ftracetest.log ']'
+ printf '      [\033[31mFAIL\033[0m]\n'
+ strip_esc
+ sed -E 's/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g'
+ FAILED_CASES=' 1'
+ return 1
+ '[' 1 -eq 0 ']'
+ '[' 1 -eq 1 -o 1 -eq 2 ']'
+ catlog /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//1-trigger-synthetic_event_syntax_errors.tc-log.dgLUGm
+ cat /tmp/tone/run/kernel-selftests/ftrace/logs/20230105-150643//1-trigger-synthetic_event_syntax_errors.tc-log.dgLUGm
execute: /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
+ cd /sys/kernel/tracing
+ read PID _
+ set -e
+ set -x
+ checkreq /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
++ grep '^#[ \t]*requires:' /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
++ cut -f2- -d:
+ requires=' synthetic_events error_log "char name[]'\'' >> synthetic_events":README'
+ eval check_requires ' synthetic_events error_log "char name[]'\'' >> synthetic_events":README'
++ check_requires synthetic_events error_log 'char name[]'\'' >> synthetic_events:README'
++ for i in "$@"
++ r=synthetic_events
++ t=synthetic_events
++ '[' synthetic_events '!=' synthetic_events ']'
++ '[' synthetic_events '!=' synthetic_events ']'
++ '[' '!' -e synthetic_events ']'
++ for i in "$@"
++ r=error_log
++ t=error_log
++ '[' error_log '!=' error_log ']'
++ '[' error_log '!=' error_log ']'
++ '[' '!' -e error_log ']'




How reproducible:
必现

Steps to Reproduce:
rpm -i kernel-4.19.91-210.git.02d097c7c673.an8.src.rpm
yum install yum-utils
yum-builddep -y /root/rpmbuild/SPECS/kernel.spec    #自动安装前置依赖包  需要yum-utils
rpmbuild -bp /root/rpmbuild/SPECS/kernel.spec         # 这个步骤会打相关的patch， 解压缩tar包，生成BUILD目录
cd BUILD/linux-4.19.91-210.git.02d097c7c673.an8.aarch64/tools/testing/selftests/
cd ftrace/
make 
make install
./ftracetest

手动运行测试用例fail部分的方法：
cd kernel-selftests/kselftest/ftrace
./ftracetest /tmp/tone/run/kernel-selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc -v


Actual results:
用例执行fail

Expected results:
用例执行pass

Additional info: