* [BUG] 2.6.28-git12: "powerpc/pci: Reserve legacy regions on PCI" broke my G3
@ 2009-01-17 22:46 Mikael Pettersson
2009-01-18 21:44 ` Benjamin Herrenschmidt
0 siblings, 1 reply; 2+ messages in thread
From: Mikael Pettersson @ 2009-01-17 22:46 UTC (permalink / raw)
To: benh; +Cc: linuxppc-dev, linux-kernel
The 2.6.29-rc kernels hang during boot on my PowerMac G3 (Beige).
The last messages I see on the console are
Kernel command line: ramdisk_size=8192
irq: Found primary Apple PIC /pci/mac-io for 64 irqs
irq: System has 64 possible interrupts
and then it hangs until I reboot it. Unfortunately I don't have a serial cable
compatible with the G3's serial port so I can't set up a serial console.
Eventually I narrowed the cause down to "powerpc/pci: Reserve legacy regions on PCI"
(commit c1f343028d35ba4e88cd4a3c44e0d8b8a84264ee) in 2.6.28-git12. Reverting that
from 2.6.29-rc2 results in a kernel that boots ok and works reliably.
The problem seems system specific as both my G5 and my G4 had no problems at all
with 2.6.29-rc1.
/Mikael
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [BUG] 2.6.28-git12: "powerpc/pci: Reserve legacy regions on PCI" broke my G3
2009-01-17 22:46 [BUG] 2.6.28-git12: "powerpc/pci: Reserve legacy regions on PCI" broke my G3 Mikael Pettersson
@ 2009-01-18 21:44 ` Benjamin Herrenschmidt
0 siblings, 0 replies; 2+ messages in thread
From: Benjamin Herrenschmidt @ 2009-01-18 21:44 UTC (permalink / raw)
To: Mikael Pettersson; +Cc: linuxppc-dev, linux-kernel
On Sat, 2009-01-17 at 23:46 +0100, Mikael Pettersson wrote:
> The 2.6.29-rc kernels hang during boot on my PowerMac G3 (Beige).
> The last messages I see on the console are
>
> Kernel command line: ramdisk_size=8192
> irq: Found primary Apple PIC /pci/mac-io for 64 irqs
> irq: System has 64 possible interrupts
>
> and then it hangs until I reboot it. Unfortunately I don't have a serial cable
> compatible with the G3's serial port so I can't set up a serial console.
>
> Eventually I narrowed the cause down to "powerpc/pci: Reserve legacy regions on PCI"
> (commit c1f343028d35ba4e88cd4a3c44e0d8b8a84264ee) in 2.6.28-git12. Reverting that
> from 2.6.29-rc2 results in a kernel that boots ok and works reliably.
>
> The problem seems system specific as both my G5 and my G4 had no problems at all
> with 2.6.29-rc1.
Thanks, I'll try to narrow it down, but it will take a week or so as I'm
away attending LCA. I think I have one of these Beige G3's in the office
somewhere....
Cheers,
Ben.
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2009-01-17 22:46 [BUG] 2.6.28-git12: "powerpc/pci: Reserve legacy regions on PCI" broke my G3 Mikael Pettersson
2009-01-18 21:44 ` Benjamin Herrenschmidt
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