[CentOS-devel] CentOS Stream 8 kernel

Tue Jan 26 15:32:31 UTC 2021
Johnny Hughes <johnny at centos.org>

On 1/25/21 10:21 AM, Gena Makhomed wrote:
> On 14.01.2021 23:06, Brian Stinson wrote:
> 
>> On Thu, Jan 14, 2021, at 14:50, Gena Makhomed wrote:
> 
>>> I found regression in the CentOS Stream 8 kernels, and create
>>> bug report https://bugzilla.redhat.com/show_bug.cgi?id=1913806
>>>
>>> After reading https://wiki.centos.org/Contribute/CentOSStream
>>> I try to download kernel sources and look for root cause of bug,
>>> but dist-git and source-git repos does not contain kernel sources,
>>> even if I try to execute %prep phase. For this reason I can't
>>> even try to find root cause of this bug by myself.
>>>
>>> This bug is critical for me, because currently I try to use
>>> systemd-nspawn for containers virtualization in production.
>>> If future CentOS 8.4 will contain this bug - it will be disaster.
>>>
>>> What else I can do (as user or developer) for fixing this bug?
> 
>> We should have a new kernel out in the next couple of days, next step
>> would be to see if that bug is fixed in this build:
>> https://koji.mbox.centos.org/koji/buildinfo?buildID=15499
> 
> I check latest CentOS Stream 8 kernel version 4.18.0-269.el8.x86_64
> - this regression with broken nspawn containers still present here.
> 
> Does any chance exist that this kernel regression will be fixed
> in CentOS Stream 8 before CentOS 8.4 / RHEL 8.4 will be released?
> 
>> One thing we might be able to update about the documentation if you're
>> looking into the sources is to add a link here:
>> https://wiki.centos.org/Sources (see the section there describing the
>> get_sources.sh script). We store large sources in a separate
>> lookaside, not directly in the dist-git trees.
> 
> Thank you! Now I can download source - but all patches are merged
> into one file linux-4.18.0-269.el8.tar.xz - I have no chances
> to find which patch to the kernel source tree causes this regression
> with broken systemd-nspawn containers. As I understand, only Red Hat
> kernel developers now can find the root cause of regression and fix it.

This is how Red Hat releases all kernel sources.

> 
> And all I can do is file a bug
> https://bugzilla.redhat.com/show_bug.cgi?id=1913806
> and hope for the best?
>