Hi Simon,
On 07.10.21 15:43, Simon Glass wrote:
Hi Stefano,
On Thu, 7 Oct 2021 at 04:37, Stefano Babic <sba...@denx.de> wrote:
Hi all,
CI stops by building aarch64 without notice, for reference:
https://source.denx.de/u-boot/custodians/u-boot-imx/-/jobs/332319
There is no error, just process is killed. It looks like it stops at
xilinx_zynqmp_virt,
./tools/buildman/buildman -o /tmp -P -E -W aarch64but board can be built
without issues.
If I build on my host (not in docker, anyway), it generally builds fine
- but it crashes sometimes, too. On gitlab instance , it crashes.
Issue does not seem that depends on merged patches, and introduces
boards were already built successfully. Any hint ? I have also no idea
what I should look as what I see is just
"usr/bin/bash: line 104: 24 Killed
./tools/buildman/buildman -o /tmp -P -E -W aarch64"
I cannot see that link. I am not sure what is going on. Does it say
what signal killed it?
Pipelines on our server were not public - I have enbaled now for u-boot-imx.
Does it sit there for an hour and timeout? If so, then I did see that
myself once recently, when the Kconfig needed stdin, but I could not
quitetie it down. I think buildman would provide it, but sometimes
not, apparently. So it can happen when there is an existing build
there and your new one which adds Kconfig options that don't have
defaults, or something like that?
I have investigated further, and I can reproduce it on my host outside
the gitlab server. buildman causes a OOM, but I cannot find the cause.
Strange enough, this happens with the "aarch64" target, and I cannot
reproduce it with Tom's master. So it seems that -master is ok, and
somethin on u-boot-imx generates the OOM.
However....
The OOM happens always when -2 (two boards remain) appears. I can see
with htop that buildman starts to allocate memory until it is exhausted
(64GB RAM + 8 GB swap). Then the kernel decides that it is enough and
kills buildman - this is what I see on Ci.
You can see now the pipelines:
https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/9520
I have then split aarch64 and I built imx8 separately - same result. The
pipeline stops with xilinx board, but they have nothing to do. In fact,
I can build all xilinx board separately. If I run buildman -W aarch64 -x
xilinx, OOM is shown by another board.
Strange enough, I can build each single board with buildman without
issues, neither errors nor warnongs. Just when buildman runs all
together (aarch64, 308 boards), the OOM is generated.
Bisect does not help: I started bisect, and at the end this commit was
presented:
commit 53a24dee86fb72ae41e7579607bafe13442616f2
Author: Fabio Estevam <feste...@denx.de>
Date: Mon Aug 23 21:11:09 2021 -0300
imx8mm-cl-iot-gate: Split the defconfigs
But it is a fake: I can revert it, I get the issue again. And the patch
has nothing to do.
It looks to me it is something in binman, maybe triggered by some
changes in tree, but all boards can be built separately without issues.
I supposed to find the cause in code due to applied patches, but because
each board can be built and no help from bisect, I am quite puzzled. I
avoid to send a PR to Tom, else I guess the problem goes into -master,
but I do not know how to proceed, and I have a lot of patches to be applied.
What can be done ?
If that is it, you can repeat it by clearing out your .bm-work
On gitlab, the build starts from scratch.
directory then building just that board for one commit, then the next
(with the Kconfig change).
I have run buildman for each single board, all of them were successuful.
With aarch64, I get OOM from buildman.
Buildman is supposed to handle this, of course. I'm not sure what has changed.
Regards,
Stefano
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