Re: [CentOS-devel] make dist-all-rpms fails with test_progs-no_alu32-extras Error

Re: [CentOS-devel] make dist-all-rpms fails with test_progs-no_alu32-extras Error

[Ihor Solodrai]

On 3/8/25 6:34 AM, Costa Shulyupin wrote:
> On Wed, 5 Mar 2025 at 00:11, Donald Zickus <dzickus@redhat.com> wrote:
>>
>> Hi,
>>
>> If anyone wants to chew on a kernel build problem on the centos mailing list.  There are multiple replies to the thread with no success.
>>
>> Cheers,
>> Don
>>
>> ---------- Forwarded message ---------
>> From: Sebastian Hetze <shetze@redhat.com>
>> Date: Sat, Mar 1, 2025 at 6:50 AM
>> Subject: [CentOS-devel] make dist-all-rpms fails with test_progs-no_alu32-extras Error
>> To: <devel@lists.centos.org>
>>
>>
>> Hi *
>>
>> I recently tried to compile a custom centos-stream-9 automotive SIG kernel and failed.
>>
>> Now I see the very same problem is present in the mainline centos-stream-9 kernel.
>>
>> When I clone the sources from https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9 on a freshly installed centos-stream-9 host, the make dist-all-rpms target fails with
>>
>> make[3]: rsync: Argument list too long
>> make[3]: *** [Makefile:768: test_progs-no_alu32-extras] Error 127
>>
>>
>> This is certainly not a problem with rsync and the ulimits are definitely sufficient to deal with this ~2000 char argument list.
>>
>> So what is going on here?
>> This rsync call appears to come from the tools/testing/selftests/bpf/Makefile.
>> The problem persists if I BUILDOPTS="-selftests" and I understand bpf to be a SKIP_TARGET by default, anyway.
>>
>>
>> Does anyone have a hint? What is missing or what am I missing?
>
> I’ve bisected the issue and identified that it was introduced by commit
> selftests/bpf: Use auto-dependencies for test objects
>
> https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/commit/a7ff7bd4cdad76f4f1c37ee7c918e201dbb7ce6e
>

Hi everyone.

I tried to reproduce the error using a centos9-stream docker image [1]
(I know it might be not exactly right), following steps from the
original thread [2].

This command:

    make -j$(nproc) DISTLOCALVERSION=_at BUILDOPTS="-selftests" dist-all-rpms

completed successfully on tag kernel-5.14.0-571.el9 [3].

Shortly after auto-dependencies change was merged, a few problems with
out-of-tree builds were discovered and fixed. The symptom was also an
rsync command failure. See relevant thread on bpf mailing list [4].

I noticed that the fixes are not merged into centos9-stream tree. I
think it's worth trying to test the build with the fixes applied [5].

It's just a guess though, as I wasn't able to reproduce the failure.

[1] https://hub.docker.com/r/dokken/centos-stream-9
[2] https://lists.centos.org/hyperkitty/list/devel@lists.centos.org/thread/N4JBZWVP2OTQXWQ52E73SBRHE6GA6XPB/
[3] https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/commit/15b5887ebd883f74aaa63ab124bc0f75770eb6b1
[4] https://lore.kernel.org/bpf/877cbfwqre.fsf@all.your.base.are.belong.to.us
[5] https://lore.kernel.org/bpf/20240916195919.1872371-1-ihor.solodrai@pm.me/