selftests: test stops at step_after_suspend_test

selftests: test stops at step_after_suspend_test

[Akira Shibakawa]

Hi, I tried to run kselftest but it stops with logs below.

----------------------------
# ./run_kselftest.sh
[  126.214906] kselftest: Running tests in android
TAP version 13
# selftests: android: run.sh
1..1
# ./run.sh: line 3: ./ion_test.sh: not found
not ok 1 selftests: android: run.sh # exit=127
[  126.351342] kselftest: Running tests in breakpoints
TAP version 13
# selftests: breakpoints: step_after_suspend_test
1..2
[  126.464495] PM: suspend entry (s2idle)
[  126.496441] Filesystems sync: 0.031 seconds
[  126.499299] Freezing user space processes ... (elapsed 0.001 seconds) done.
[  126.501161] OOM killer disabled.
[  126.501293] Freezing remaining freezable tasks ... (elapsed 0.001
seconds) done.
[  126.503018] printk: Suspending console(s) (use no_console_suspend to debug)
----------------------------

I used kernel 5.6.15 stable on qemu(x86_64) and used kselftest from same source.
I built kernel adding configurations below to be able to mount
kselftest directory on host.

----------------------------
CONFIG_NET_9P=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_VIRTIO=y
CONFIG_NET_9P_DEBUG=y
CONFIG_VIRTIO_PCI=y
CONFIG_FUSE_FS=y
CONFIG_VIRTIO_PCI_LEGACY=y
CONFIG_9P_FS=y
CONFIG_VIRTIO_FS=y
CONFIG_9P_FS_POSIX_ACL=y
CONFIG_CRYPTO_ENGINE=m
CONFIG_9P_FS_SECURITY=y
CONFIG_CRYPTO_DEV_VIRTIO=m
CONFIG_GDB_SCRIPTS=y
CONFIG_DEBUG_INFO=y
 ----------------------------

Then, I boot kernel with rootfs geterated by buildroot like this.

 ----------------------------
qemu-system-x86_64 -kernel arch/x86/boot/bzImage -boot c -m 2049M -hda
../buildroot/output/images/rootfs.ext4 -append \
"root=/dev/sda rw console=ttyS0,115200 acpi=off nokaslr" -serial
mon:stdio -display none \
-virtfs local,path=/home/arabishi/work/kselftest/kselftest,mount_tag=host0,security_model=passthrough,id=host0
 ----------------------------

What should I do ?

Re: selftests: test stops at step_after_suspend_test

[Shuah Khan]

On 6/11/20 5:21 AM, Akira Shibakawa wrote:
> Hi, I tried to run kselftest but it stops with logs below.
> 
> ----------------------------
> # ./run_kselftest.sh
> [  126.214906] kselftest: Running tests in android
> TAP version 13
> # selftests: android: run.sh
> 1..1
> # ./run.sh: line 3: ./ion_test.sh: not found
> not ok 1 selftests: android: run.sh # exit=127
> [  126.351342] kselftest: Running tests in breakpoints
> TAP version 13
> # selftests: breakpoints: step_after_suspend_test
> 1..2
> [  126.464495] PM: suspend entry (s2idle)
> [  126.496441] Filesystems sync: 0.031 seconds
> [  126.499299] Freezing user space processes ... (elapsed 0.001 seconds) done.
> [  126.501161] OOM killer disabled.
> [  126.501293] Freezing remaining freezable tasks ... (elapsed 0.001
> seconds) done.
> [  126.503018] printk: Suspending console(s) (use no_console_suspend to debug)
> ----------------------------

Looks like you are running as root. breakpoints has a suspend test and
suspending the system. Try as non-root.

thanks,
-- Shuah

Re: selftests: test stops at step_after_suspend_test

[Akira Shibakawa]

Hi, Shuah.
Thank you for replying.
I tried as non-root, but step_after_suspend_test was skipped.
What should I do to pass step after suspend test ?
Is it need to resume the kernel from Qemu console after suspending?

thanks.

---------------------
TAP version 13
1..1
# selftests: android: run.sh
# ./run.sh: line 3: ./ion_test.sh: not found
not ok 1 selftests: android: run.sh # exit=127
TAP version 13
1..2
# selftests: breakpoints: step_after_suspend_test
# TAP version 13
# 1..186
# not ok 1 # SKIP Please run the test as root - Exiting.
not ok 1 selftests: breakpoints: step_after_suspend_test # SKIP
---------------------

2020年6月11日(木) 21:02 Shuah Khan <skhan@linuxfoundation.org>:

>
> On 6/11/20 5:21 AM, Akira Shibakawa wrote:
> > Hi, I tried to run kselftest but it stops with logs below.
> >
> > ----------------------------
> > # ./run_kselftest.sh
> > [  126.214906] kselftest: Running tests in android
> > TAP version 13
> > # selftests: android: run.sh
> > 1..1
> > # ./run.sh: line 3: ./ion_test.sh: not found
> > not ok 1 selftests: android: run.sh # exit=127
> > [  126.351342] kselftest: Running tests in breakpoints
> > TAP version 13
> > # selftests: breakpoints: step_after_suspend_test
> > 1..2
> > [  126.464495] PM: suspend entry (s2idle)
> > [  126.496441] Filesystems sync: 0.031 seconds
> > [  126.499299] Freezing user space processes ... (elapsed 0.001 seconds) done.
> > [  126.501161] OOM killer disabled.
> > [  126.501293] Freezing remaining freezable tasks ... (elapsed 0.001
> > seconds) done.
> > [  126.503018] printk: Suspending console(s) (use no_console_suspend to debug)
> > ----------------------------
>
> Looks like you are running as root. breakpoints has a suspend test and
> suspending the system. Try as non-root.
>
> thanks,
> -- Shuah