On 15/01/14(Wed) 15:27, Stefan Sperling wrote: > On Wed, Jan 15, 2014 at 10:11:27AM +0100, Martin Pieuchot wrote: > > On 14/01/14(Tue) 16:21, Sunny Raspet wrote: > > > Hello! > > > > > > Running 5.4-RELEASE/macppc on a Mac PowerBook G4, attempting to > > > interact with the built-in bwi(4) card results in badness. > > > > Sadly this is a know issue on most of the macppc machine having a > > bwi(4). If somebody has more inputs I'm also interested ;) > > > > M. > > It seems the bwi driver lacks support for PIO mode which the > linux b43 driver falls back to in case of DMA errors such as > this one. > > Two related linux commits: > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3bd9190800e8209b4a3e1d724c35f0738dcad2 > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5100d5ac81b9330dc57e35adbe50923ba6107b8f > I'm not sure why the latter commit talks about PCMCIA but it mentions > the powerbook G4.
That might help but that's just the top of the iceberg. At some point this driver worked with my iBook G4 (I remember using it a lot in 4.7). Now and for quite some time it produces the same intr error. Same problem with my PowerBook G4 12''. However it works well on my PowerBook 15'' ...
