Bug 1216042 - Kernels fail to build in Kernel:stable:Backport
Summary: Kernels fail to build in Kernel:stable:Backport
Status: RESOLVED FIXED
: 1222388 (view as bug list)
Alias: None
Product: openSUSE Distribution
Classification: openSUSE
Component: Kernel (show other bugs)
Version: Leap 15.5
Hardware: Other Other
: P5 - None : Normal (vote)
Target Milestone: ---
Assignee: Jan Engelhardt
QA Contact: E-mail List
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Reported: 2023-10-09 08:25 UTC by Manfred Hollstein
Modified: 2024-05-09 16:35 UTC (History)
4 users (show)

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Description Manfred Hollstein 2023-10-09 08:25:17 UTC 
The recently updated binutils in openSUSE_Leap_15.4 generate new DT_ tags which dwarves does not know about:

[ 1122s] Unsupported DW_TAG_unspecified_type(0x3b)
[ 1122s] Encountered error while encoding BTF.

osc branch --nodevelproject openSUSE:Factory dwarves Kernel:stable:Backport

would probably solve this issue.
Comment 1 Jiri Slaby 2023-10-09 08:58:32 UTC 
IMO dwarves should be updated to 1.25 in Leap, so that it can handle updated tags which the new binutils generate.
Comment 2 Jiri Slaby 2023-10-09 09:04:15 UTC 
(Forgot to note that I temporarily worked around this by linking dwarves from Factory (1.25) to Kernel:stable:Backport.)
Comment 3 Michal Suchanek 2023-10-09 09:44:20 UTC 
dwarves is part of SLE so it needs to be updated there, and SLE does not have the required libraries for that.

The current dwarves can be only built with vendored libbpf.
Comment 5 Jiri Slaby 2023-10-10 10:43:47 UTC 
(In reply to Michal Suchanek from comment #3)
> dwarves is part of SLE so it needs to be updated there, and SLE does not
> have the required libraries for that.

OTOH 1.25 builds fine in Kernel:stable:Backport, i.e. against Leap:15.5:Update (it was :15.4: yesterday before Takashi did the switch and was OK too). I didn't check SLE, but does Leap have enough and SLE not?
Comment 6 Michal Suchanek 2023-10-10 11:29:22 UTC 
No, it's built with vendored libbpf which probably works but is unfit for releasing in SLE.
Comment 8 Andreas Stieger 2024-04-06 06:35:29 UTC 
*** Bug 1222388 has been marked as a duplicate of this bug. ***
Comment 9 Andreas Stieger 2024-04-06 06:35:57 UTC 
Seen on 15.5
Comment 10 Bob Goddard 2024-04-10 14:14:49 UTC 
This is also a problem in 15.5.

Is this going to be fixed, or do we have to wait until 16 which is over a year away?
Comment 11 Michal Suchanek 2024-04-10 14:22:43 UTC 
dwarves are updated in 15.6
Comment 12 Bob Goddard 2024-05-08 12:14:20 UTC 
(In reply to Michal Suchanek from comment #11)
> dwarves are updated in 15.6

I do not think it is acceptable that we have to wait until 15.6 for a fix.
Comment 13 Bob Goddard 2024-05-09 13:55:03 UTC 
(In reply to Bob Goddard from comment #12)
> (In reply to Michal Suchanek from comment #11)
> > dwarves are updated in 15.6
> 
> I do not think it is acceptable that we have to wait until 15.6 for a fix.

It is NOT acceptable that this issue is not being fixed.

The inability to build a kernel should not be left until 15.6.
Comment 14 Michal Suchanek 2024-05-09 13:59:54 UTC 
You can install the build tools from Kernel:stable:Backport project as well as the prebuilt kernels.

In 15.6 dwarves is new enough to build the upstream kernel out of the box, for now.
Comment 15 Bob Goddard 2024-05-09 14:09:11 UTC 
(In reply to Michal Suchanek from comment #14)
> You can install the build tools from Kernel:stable:Backport project as well
> as the prebuilt kernels.
> 
> In 15.6 dwarves is new enough to build the upstream kernel out of the box,
> for now.

That is NOT acceptable.

We should not have to go through hoops & I am sure as heck NOT going to install a whole bunch of other packages..

I just tried to install from https://download.opensuse.org/repositories/Kernel:/stable:/Backport/standard/aarch64/ & there is no build tools or any dwarves package listed.