linux-kernel - [tracing] c1022e59f1: kernel-selftests.ftrace.Kprobe_event_parser_error_log

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Date:   Sat, 16 Jul 2022 22:55:02 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Linyu Yuan <quic_linyyuan@...cinc.com>
Cc:     0day robot <lkp@...el.com>, Masami Hiramatsu <mhiramat@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-doc@...r.kernel.org,
        lkp@...ts.01.org, Steven Rostedt <rostedt@...dmis.org>,
        Tom Zanussi <zanussi@...nel.org>,
        Linyu Yuan <quic_linyyuan@...cinc.com>
Subject: [tracing]  c1022e59f1:
 kernel-selftests.ftrace.Kprobe_event_parser_error_log_check.fail



Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: c1022e59f1dc5f52d42fd12c8ced12ca03bd3a86 ("[PATCH v6 2/3] tracing: auto generate event name when create a group of events")
url: https://github.com/intel-lab-lkp/linux/commits/Linyu-Yuan/tracing-probes-allow-no-event-name-input-when-create-group/20220621-100118
base: https://git.kernel.org/cgit/linux/kernel/git/rostedt/linux-trace.git for-next
patch link: https://lore.kernel.org/lkml/1655776787-18133-3-git-send-email-quic_linyyuan@quicinc.com

in testcase: kernel-selftests
version: kernel-selftests-x86_64-77b3a84e-1_20220711
with following parameters:

	group: ftrace
	ucode: 0xec

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 16G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>


# [51] Create/delete multiprobe on kprobe event	[PASS]
# [52] Kprobe event parser error log check	[FAIL]   <----- which can pass on parent
# [53] Kretprobe dynamic event with arguments	[PASS]


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



View attachment "config-5.18.0-rc2-00062-gc1022e59f1dc" of type "text/plain" (167222 bytes)

View attachment "job-script" of type "text/plain" (6625 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (22752 bytes)

View attachment "kernel-selftests" of type "text/plain" (8101 bytes)

View attachment "job.yaml" of type "text/plain" (5254 bytes)

View attachment "reproduce" of type "text/plain" (152 bytes)