[Bug 215658] New: arch/powerpc/mm/mmu_context.o Assembler messages: Error: unrecognized opcode: `dssall' (PowerMac G4)

[Bug 215658] New: arch/powerpc/mm/mmu_context.o Assembler messages: Error: unrecognized opcode: `dssall' (PowerMac G4)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215658

            Bug ID: 215658
           Summary: arch/powerpc/mm/mmu_context.o Assembler messages:
                    Error: unrecognized opcode: `dssall' (PowerMac G4)
           Product: Platform Specific/Hardware
           Version: 2.5
    Kernel Version: 5.16.12
          Hardware: PPC-32
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: PPC-32
          Assignee: platform_ppc-32@kernel-bugs.osdl.org
          Reporter: erhard_f@mailbox.org
        Regression: Yes

Created attachment 300528
  --> https://bugzilla.kernel.org/attachment.cgi?id=300528&action=edit
kernel .config (5.16.12, PowerMac G4 DP)

5.16.12 kernel build for my G4 DP on my Talos II fails with:

[...]
  CC      arch/powerpc/mm/init_32.o
  CC      arch/powerpc/mm/pgtable_32.o
  CC      arch/powerpc/mm/pgtable-frag.o
  CC      arch/powerpc/mm/ioremap.o
  CC      arch/powerpc/mm/ioremap_32.o
  CC      arch/powerpc/mm/init-common.o
  CC      arch/powerpc/mm/mmu_context.o
{standard input}: Assembler messages:
{standard input}:30: Error: unrecognized opcode: `dssall'
make[2]: *** [scripts/Makefile.build:287: arch/powerpc/mm/mmu_context.o] Fehler
1
make[1]: *** [scripts/Makefile.build:549: arch/powerpc/mm] Fehler 2
make: *** [Makefile:1846: arch/powerpc] Error 2


This seems to have been introduced by commit
d51f86cfd8e378d4907958db77da3074f6dce3ba "powerpc/mm: Switch obsolete dssall to
.long"

Reverting this commit fixes the build for my G4.

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[Bug 215658] arch/powerpc/mm/mmu_context.o Assembler messages: Error: unrecognized opcode: `dssall' (PowerMac G4)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215658

Christophe Leroy (christophe.leroy@csgroup.eu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |christophe.leroy@csgroup.eu

--- Comment #1 from Christophe Leroy (christophe.leroy@csgroup.eu) ---
This description is puzzling.

Commit d51f86cfd8e3 ("powerpc/mm: Switch obsolete dssall to .long") is not in
v5.16.12

For me, applying that commit to v5.16.12 should fix your problem, not the
reverse.

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[Bug 215658] arch/powerpc/mm/mmu_context.o Assembler messages: Error: unrecognized opcode: `dssall' (PowerMac G4)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215658

Erhard F. (erhard_f@mailbox.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Erhard F. (erhard_f@mailbox.org) ---
This was Gentoo Sources v5.16.12 not upstream sources. But now I am not able to
reproduce it which is even more strange... Also Gentoos' v5.16.13 builds ok.

What I did in the meantime was downgrading to binutils 2.37 (had 2.38 before)
and rebuilding the toolchain afterwards.

So this probably was never a bug but an issue with my setup. ;) Closing here.

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