[OpenBIOS] Faulty Qemu SPARC64 IDE emulation?

[Nick Couchman]

>>> On 2009/12/09 at 11:56, Mark Cave-Ayland <mark.cave-ayland at siriusit.co.uk>
wrote: 
> Nick Couchman wrote:
> 
>> Curiously the PC location for the error has changed - according to the output 
> above, here's the gdb location:
>> 
>> (gdb) l *0x00000000ffd1bad0
>> 0xffd1bad0 is in ob_ide_insw (./target/include/asm/io.h:165).
>> 160	{
>> 161		uint16_t *b = (uint16_t *) buf;
>> 162	
>> 163		while (ns > 0) {
>> 164			*b++ = in_le16(port);
>> 165			ns--;
>> 166		}
>> 167	}
>> 168	
>> 169	static inline void _outsw_ns(volatile uint16_t * port, const void *buf,
>> 
>> -Nick
> 
> Okay - I've just committed a "fix" for the missing alarm word since 
> OpenBIOS wasn't removing the parameters from the stack as alarm should. 
> Now I get slightly further with Milax, but I too am seeing a crash in 
> the IDE inteface code trying to load a file. It seems that the crash 
> manages to kill the Qemu instance too.
> 

After an svn up and a rebuild, I'm getting exactly the same Unhandled Exception as before with the Solaris Nevada code   - no segfault or anything like that.  With Milax I see exactly the error you're seeing, including the segfault.

-Nick



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