Commit Graph

6 Commits

Author SHA1 Message Date
Romain Naour
42f7f451ec support/scripts/boot-qemu-image.py: increase the timeout by 10
As for the Buildroot testsuite, multiply every emulator timeout by 10
to avoid sporadic failures in elastic runners.

qemu_arm_vexpress_tz_defconfig tested locally with sucess.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/1970084046

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2022-07-27 15:56:57 +02:00
Arnout Vandecappelle (Essensium/Mind)
d721c95b8b support: fix flake8 error E741 ambiguous variable name
A recent update of flake8 in CI introduced a new check E741. It
basically checks that variables are at least 3 characters long. Up to
now, however, we have used shorter names in some places - all of them
turn out to be "l" for a line of text.

Replace all those "l" variables with "line".

Fixes: https://gitlab.com/buildroot.org/buildroot/-/jobs/1687009829
partially:
support/scripts/boot-qemu-image.py:47:21: E741 ambiguous variable name 'l'
support/scripts/check-dotconfig.py:20:38: E741 ambiguous variable name 'l'
support/scripts/size-stats:76:13: E741 ambiguous variable name 'l'
support/testing/tests/core/test_bad_arch.py:17:32: E741 ambiguous variable name 'l'
support/testing/tests/package/test_python_treq.py:10:30: E741 ambiguous variable name 'l'
support/testing/tests/toolchain/test_external.py:30:42: E741 ambiguous variable name 'l'

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2021-10-18 22:31:11 +02:00
Romain Naour
03c3fbd81c support/scripts/boot-qemu-image.py: properly catch timeout
As reported on IRC by sephthir, the gitlab test of the defconfig
qemu_sparc_ss10_defconfig doesn't error out while the system
is not working properly.

This is because we explicitly wait for the timeout as an expected
condition, but do not check for it. Indeed, pexpect.expect() returns
the index of the matching condition in the list of expected conditions,
but we just ignore the return code, so we are not able to differentiate
between a successful login (or prompt) from a timeout.

By default, pexepect.expect() raises the pexpect.TIMEOUT exception on a
timeout, and we are already prepared to catch and handle that exception.
But because pexpect.TIMEOUT is passed as an expected condition, the
exception is not raised.

Remove pexpect.TIMEOUT from the list of expected conditions, so that the
exception is properly raised again, and so that we can catch it.

The qemu_sparc_ss10_defconfig is already fixed by
4d16e6f532.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Jugurtha BELKALEM <jugurtha.belkalem@smile.fr>
[yann.morin.1998@free.fr: reword commit log]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2021-02-20 22:44:29 +01:00
Romain Naour
d673618342 support/scripts/boot-qemu-image.py: don't fail if start-qemu.sh is missing
When boot-qemu-image.py script was added, we wanted to run
each qemu defconfig in gitlab, so we expect that all qemu
defconfig generate the script start-qemu.sh in images
directory.

Don't make it a hard requirement even if we prefer to be
able to do a runtime test for each qemu defconfig.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2020-12-05 22:33:27 +01:00
Romain Naour
e79018544d support/scripts/boot-qemu-image.py: wait before using expect
As reported by a gitlab runtime test [1] and on the mailing list
[2], some runtime tests are failing on slow host machines when
the qemu-system-<arch> is missing on the host.

The boot-qemu-image.py script need to wait some time after
calling pexpect.spawn() in order to make sure that the qemu
process has been executed in start-qemu.sh.

If start-qemu.sh failed due to missing qemu-system binary
an exception will be thrown by child.expect() and should be
catched by the error handling (pexpect.EOF).

After spending a lot of time to investigate with Yann E. MORIN
[3]. It seems that short-lived child processes are a corner-case
that is not very correctly handled...

Without adding a sleep(1), child.expect() can trigger an
exception before setting the exitstatus of the spawned
process. This issue can be reproduced on a gitlab runner or
by adding "exit 1" in the first line of start-qemu.sh
(after the shebang).

There is even the same workaround in some pexpect examples [4].

Thanks to Yann for the help while investigating the issue.

Tested:
https://gitlab.com/kubu93/buildroot/pipelines/138472925

[1] https://gitlab.com/kubu93/buildroot/pipelines/135487475
[2] http://lists.busybox.net/pipermail/buildroot/2020-April/280037.html
[3] http://patchwork.ozlabs.org/project/buildroot/patch/20200418161023.1221799-1-romain.naour@gmail.com/
[4] https://github.com/pexpect/pexpect/blob/master/examples/ssh_tunnel.py#L80

Fixes:
https://gitlab.com/kubu93/buildroot/-/jobs/509053135

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
[yann.morin.1998@free.fr: reorder imports]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2020-04-22 22:04:47 +02:00
Jugurtha BELKALEM
0c79350638 support/scripts/boot-qemu-image.py: boot Qemu images with Qemu-system.
This script is intended to be used by gitlab CI to test at runtime Qemu
images generated by Buildroot's Qemu defconfigs.

This allows to troubleshoot different issues that may be associated with
defective builds by lanching a qemu machine, sending root password,
waiting for login shell and then perform a shutdown.

This script is inspired by toolchain builder [1] and the Buildroot
testing infrastructure.

The gitlab CI will call this script for each defconfig build but only
Qemu defconfig will be runtime tested, all others defconfig are ignored.

Some Qemu defconfig must be used with a specific Qemu version (fork)
that is not always available, so the script doesn't error out when it
can't spawn a missing command. That condition is anyway printed in the
log.

Finally, the script start Qemu like it's done for the Buildroot
testing infrastructure (using pexpect).

Note:
We noticed some timeout issues with pexpect when the Qemu machine is
powered off. That's because Qemu process doesn't stop even if the
system is halted (after "System halted"). So the script doesn't error
out when such timeout occure. The behaviour depends on the architecture
emulated by Qemu.

[1] https://github.com/bootlin/toolchains-builder/blob/master/build.sh

Signed-off-by: Jugurtha BELKALEM <jugurtha.belkalem@smile.fr>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2020-04-13 21:51:13 +02:00