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Date: Fri, 09 Apr 2004 20:47:27 +0000
From: Joel Soete <soete.joel@tiscali.be>
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To: James Bottomley <James.Bottomley@steeleye.com>
Subject: Re: [parisc-linux] 2.6.5-rc2-pa2 boot panic on c110 :(
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Cc: Grant Grundler <grundler@parisc-linux.org>,
	PA-RISC Linux Port <parisc-linux@lists.parisc-linux.org>
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Hi James,

I come back to you with your ccio-dma patch because I don't undertand this part:
[snip]
#ifdef CONFIG_PROC_FS
/*
  * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
  * impacts performance though - ditch it if you don't use it.
  */
#define CCIO_SEARCH_TIME
#undef CCIO_MAP_STATS
#else
#undef CCIO_SEARCH_TIME
#undef CCIO_MAP_STATS
#endif

CCIO_MAP_STATS is always undef?

Could it be the panic reason of my c110 (_apparently_ since this patch)?

Thanks in advance for your attention,
	Joel


Grant Grundler wrote:
> On Sun, Mar 21, 2004 at 12:57:16PM -0700, Grant Grundler wrote:
> 
>>>Kernel Fault: Code=26 regs=10594380 (Addr=00000000)
>>
>>null ptr deref.
>>
>>...
>>
>>> IAOQ[0]: lasi700_probe+0x18c/0x1cc
>>> IAOQ[1]: lasi700_probe+0x190/0x1cc
>>> RP(r2): lasi700_probe+0x58/0x1cc
>>
>>IOAQ[0] is the offending instruction.
> 
> 
> James Bottomley observed a problem with hppa_dma_ops
> not being set properly for his U2/Uturn box.
> This is likely the same problem.
> See ccio driver isn't claiming the chip when it should.
> 
> grant
>