Re: [PATCH 0/2] kbuild: rpm-pkg: Address -debuginfo build regression with RPM < 4.20.0

[Stefano Garzarella]

On Fri, 13 Feb 2026 at 20:11, Nathan Chancellor <nathan@xxxxxxxxxx> wrote:
>
> Hi Stefano,
>
> On Fri, Feb 13, 2026 at 03:11:38PM +0100, Stefano Garzarella wrote:
> > On Tue, Feb 10, 2026 at 12:04:47AM -0700, Nathan Chancellor wrote:
> > > Steve reported a build issue with commit 62089b804895 ("kbuild: rpm-pkg:
> > > Generate debuginfo package manually") on RHEL9, which has an older
> > > version of RPM than what I tested. Turns out that RPM 4.20.0 fixed an
> > > issue with specifying %files for a -debuginfo subpackage.
> > >
> > > The first patch restricts the new -debuginfo package generation process
> > > to CONFIG_MODULE_SIG=y and RPM >= 4.20.0 to ensure it is actually
> > > necessary and working. The second patch restores the original -debuginfo
> > > package generation process from commit a7c699d090a1 ("kbuild: rpm-pkg:
> > > build a debuginfo RPM") when CONFIG_MODULE_SIG is disabled to keep the
> > > -debuginfo package around for older versions of RPM.
> >
> > Yeah, I had similar issue on Fedora 42 (RPM version 4.20.1) and this series
> > fixed my issue.
>
> Thanks for testing! I find that a little odd though since I tested
> 62089b804895 in Fedora 42 during my investigation of the problem and it
> worked fine without these changes. Nevertheless, I will add your tags to
> this series when I apply it.

mmm, that it's odd indeed.
Without this series applied, I had issues on Fedora 42 (RPM version 
4.20.1), but it worked on Fedora 43 (RPM version 6.0.1).

I just retried on Fedora 42 to build commit cee73b1e840c ("Merge tag 
'riscv-for-linus-7.0-mw1' of 
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux") and I have 
the following errors:

RPM build errors:
    Dependency tokens must begin with alpha-numeric, '_' or '/': #�) = 0x0d000002
    Dependency tokens must begin with alpha-numeric, '_' or '/': �) = 0x0d000000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x7c0e000000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x47161b0700
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x339b1a000ac0
    Dependency tokens must begin with alpha-numeric, '_' or '/': �) = 0x36000000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x7508200000000000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x2e76000000000400
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x803ab2b00000000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x1a00000000005e00
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x125590000000060
    Dependency tokens must begin with alpha-numeric, '_' or '/': = 0x03080000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x818000000003600
    Dependency tokens must begin with alpha-numeric, '_' or '/': �) = 0x0d000000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x7c0e000000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': $) = 0x1c01040000004d00
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x63c300000000000
    Illegal char '?' (0xffffffd8) in: 3�
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x1320f691700
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x2e17101500
    Version required: ksym(g) =
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': p) = 0x3875480000005c
    Dependency tokens must begin with alpha-numeric, '_' or '/': ]) = 0xfc22000000003000
    Dependency tokens must begin with alpha-numeric, '_' or '/': 2) = 0x5d0d03cc22
    Dependency tokens must begin with alpha-numeric, '_' or '/': ]) = 0x32042c1c
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x1c11a3d1b00
    Version required: ksym(�) =
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3220312e322e3400
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x322e353120295400
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x2029554e47282000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Illegal char ')' (0x29) in: (GNU)
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': #) = 0x031c0000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x570d03ea11
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x4728203a43434800
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x4000000520d03c0
    Dependency tokens must begin with alpha-numeric, '_' or '/': C) = 0x690d03cf33
    Dependency tokens must begin with alpha-numeric, '_' or '/': �l) = 0x102000001471140
    Dependency tokens must begin with alpha-numeric, '_' or '/': i) = 0x4a00000000011000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x2e00000000240000
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0x42111503a533
    Dependency tokens must begin with alpha-numeric, '_' or '/': ) = 0xea1303bb33000000
    Unknown rich dependency op 'Hat': (Red Hat 15.2.1-7)) = 0x3130363230322000

But if I apply this series on top, everything is fine.

Thanks,
Stefano