Re: 2.6.10-rc1-pa16 still panic on c110 [WAS: [parisc-linux] c110 panic when try to boot 2.6.10-rc1-pa11?]

[Grant Grundler <grundler@parisc-linux.org>]

On Sat, Nov 20, 2004 at 08:37:08PM +0000, Joel Soete wrote:
> > IAOQ[1]: mempool_alloc+0xa4/0x18c
> > RP(r2): __blk_queue_bounce+0x210/0x290

My guess is this is because the default value is wrong...hrm..
but ccio driver should be clearing parisc_bus_is_phys.
Let me commit the pending change i have and then see how it goes.


> and I don't understand why reverting this patch:
> diff -u -r1.15 -r1.16
> --- linux-2.6/arch/parisc/mm/init.c	2004/10/24 05:47:27	1.15
> +++ linux-2.6/arch/parisc/mm/init.c	2004/11/10 19:55:37	1.16
> @@ -59,8 +59,6 @@
> 
>  static struct resource sysram_resources[MAX_PHYSMEM_RANGES];
> 
> -static unsigned long max_pfn;
> -
>  /* The following array is initialized from the firmware specific
>   * information retrieved in kernel/inventory.c.
>   */
> 
> solve the pb.
> 
> That doen't make sence to me as far as I test with success this kernel on 
> b180, b2k (32 and 64 bit) and n4k (smp) without pb
> (btw the same success with my rc2 merge on b2k [32 and 64 bit] and b180 :) )

hrm. We bounce when we think an address is greater than the number
of bits a device can DMA directly to. So either the max_pfn or
the dma_mask is being set wrong.

> Well the c110 is the only model I use with NCR 53C720 & LASI ASIC interface 
> (i.e. NCR 53C710)

Either of these drivers may not be setting the corresponding dma_mask.
I need to check.

grant
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