Re: Unbootable system after fresh install on Sun Ultra 45 workstation

Hi Marcelo,

On Mon, 2025-05-19 at 18:07 +0200, Marcelo Bezerra wrote:
> > 
> > > The system clearly tried to load the wrong crc32c module, instead of
> > > crc32c_generic, which triggered the following kernel messages:
> > >  [   75.478521] crc32c_sparc64: sparc64 crc32c opcode not available.
> > >  [   75.652621] EXT4-fs (sdb2): Cannot load crc32c driver.
> 
> This is the ext4 driver complaining about it not finding a crc32c
> driver, and it won't mount any ext4 filesystems.

Yeah, as I said in my other mail, there seem to have been some recent changes
to the ext4 driver with regards to crc32 which I wasn't aware of. Thus, your
analysis could actually be correct.

> I sent the fstab and lsmod from the installation cd on a separate
> message. I will try blacklisting the crc32c_sparc module to see if
> that forces it to try the _generic version frist.

Yes, please. I have not observed this issue myself yet, so I'm curios to
learn what the root cause is. I have recently booted Debian's 6.12.x kernel
on an UltraSPARC IIIi without problems, so this issue may affect fresh
installations only.

Adrian

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 .''`.  John Paul Adrian Glaubitz
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