On Sun, 2012-04-01 at 23:27 +0200, Andreas Schwab wrote:
> Grant Likely <grant.lik...@secretlab.ca> writes:
> 
> > This patch drops the powerpc-specific irq_map table and replaces it with
> > directly using the irq_alloc_desc()/irq_free_desc() interfaces for 
> > allocating
> > and freeing irq_desc structures.
> 
> This breaks irqs on PowerMac G5.  I see lost irq errors from the sata
> driver.
> 
> Note that the breakage only started after the series was merged into
> mainline.  But when transplanted upon the parent of the merge this is
> the commit that was blamed by bisect.  So something changed between
> v3.3-rc3 and the merge of this series that broke it.

can you tell me more ? (What machine precisely, what .config etc...) ?

I tested here on two G5's:

 - PowerMac7,3 aka Dual G5 AGP. This ones has U3 + K2 and
uses cascaded MPICs

 - PowerMac11,2 aka Quad G5. This one has U4 + K2 and uses a single MPIC
in the northbridge

And both appear to work fine with today upstream (basically -rc1).

Cheers,
Ben.


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