linux-kernel - 12abeb544d: ltp.read_all

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Message-ID: <20190923003846.GB15734@shao2-debian>
Date:   Mon, 23 Sep 2019 08:38:46 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...capital.net>, lkp@...org,
        ltp@...ts.linux.it
Subject: 12abeb544d: ltp.read_all_dev.fail

FYI, we noticed the following commit (built with gcc-7):

commit: 12abeb544d548f55f56323fc6e5e6c0fb74f58e1 ("horrible test hack")
https://kernel.googlesource.com/pub/scm/linux/kernel/git/luto/linux.git random/kill-it

in testcase: ltp
with following parameters:

	disk: 1HDD
	fs: ext4
	test: fs-02

test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features.
test-url: http://linux-test-project.github.io/


on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G

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 <rong.a.chen@...el.com>

<<<test_start>>>
tag=read_all_dev stime=1569106866
cmdline="read_all -d /dev -p -q -r 10"
contacts=""
analysis=exit
<<<test_output>>>
tst_test.c:1108: INFO: Timeout per run is 0h 05m 00s
Test timeouted, sending SIGKILL!
tst_test.c:1148: INFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
tst_test.c:1149: BROK: Test killed! (timeout?)

Summary:
passed   0
failed   0
skipped  0
warnings 0
<<<execution_status>>>
initiation_status="ok"
duration=300 termination_type=exited termination_id=2 corefile=no
cutime=0 cstime=1
<<<test_end>>>
...
INFO: ltp-pan reported some tests FAIL
LTP Version: 20190517-204-gc2049b5c8

       ###############################################################

            Done executing testcases.
            LTP Version:  20190517-204-gc2049b5c8
       ###############################################################




To reproduce:

        # build kernel
	cd linux
	cp config-5.3.0-00010-g12abeb544d548 .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email



Thanks,
Rong Chen


View attachment "config-5.3.0-00010-g12abeb544d548" of type "text/plain" (199448 bytes)

View attachment "job-script" of type "text/plain" (5082 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (23420 bytes)

View attachment "ltp" of type "text/plain" (14458 bytes)