Re: [PASEMI] Nemo board doesn't recognize any ATA disks with the pci-v5.16 updates

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On Wed, Nov 10, 2021 at 07:07:24PM +0100, Christian Zigotzky wrote:
> On 09 November 2021 at 03:45 pm, Christian Zigotzky wrote:
> > Hello,
> >
> > The Nemo board [1] doesn't recognize any ATA disks with the pci-v5.16
> updates [2].
> >
> > Error messages:
> >
> > ata4.00: gc timeout cmd 0xec
> > ata4.00: failed to IDENTIFY (I/O error, error_mask=0x4)
> > ata1.00: gc timeout cmd 0xec
> > ata1.00: failed to IDENTIFY (I/O error, error_mask=0x4)
> > ata3.00: gc timeout cmd 0xec
> > ata3.00: failed to IDENTIFY (I/O error, error_mask=0x4)
> >
> > I was able to revert the new pci-v5.16 updates [2]. After a new
> compiling, the kernel recognize all ATA disks correctly.
> >
> > Could you please check the pci-v5.16 updates [2]?
> >
> > Please find attached the kernel config.
> >
> > Thanks,
> > Christian
> >
> > [1] https://en.wikipedia.org/wiki/AmigaOne_X1000
> > [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c5c62ddf88c34bc83b66e4ac9beb2bb0e1887d4
> 
> Hi All,
> 
> Many thanks for your nice responses.
> 
> I bisected today [1]. 0412841812265734c306ba5ef8088bcb64d5d3bd (of/irq:
> Allow matching of an interrupt-map local to an interrupt controller) [2] is
> the first bad commit.
> 
> I was able to revert the first bad commit [1]. After a new compiling, the
> kernel detects all ATA disks without any problems.
> 
> I created a patch for an easy reverting the bad commit [1]. With this patch
> we can do further our kernel tests.
> 
> Could you please check the first bad commit [2]?
> 
> Thanks,
> Christian
> 
> [1] https://forum.hyperion-entertainment.com/viewtopic.php?p=54398#p54398
> [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0412841812265734c306ba5ef8088bcb64d5d3bd
> 
> [+ Marc Zyngier, Alyssa Rosenzweig, Lorenzo Pieralisi, and Rob Herring
> because of the first bad commit]

Thank you very much for the bisection and for also testing the revert!

It's easy enough to revert 041284181226 ("of/irq: Allow matching of an
interrupt-map local to an interrupt controller"), and it seems like
that's what we need to do.  I have it tentatively queued up.

That commit was part of the new support for the Apple M1 PCIe
interface, and I don't know what effect a revert will have on that
support.  Marc, Alyssa?

Bjorn



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