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Date: Thu, 26 Jan 2012 09:09:11 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v2 11/33] scsi-disk: support DVD profile in
 GET CONFIGURATION
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To: Artyom Tarasenko <atar4qemu@gmail.com>
Cc: kwolf@redhat.com, Blue Swirl <blauwirbel@gmail.com>, qemu-devel@nongnu.org

On 01/25/2012 09:13 PM, Artyom Tarasenko wrote:
> On 1/25/12, Paolo Bonzini<pbonzini@redhat.com>  wrote:
>> On 01/25/2012 05:34 PM, Artyom Tarasenko wrote:
>>> This patch produces the following error when booting Solaris/SPARC:
>>>
>>> WARNING: /iommu@0,10000000/sbus@0,10001000/espdma@5,8400000/esp@5,8800000
>>> (esp0):
>>>           data transfer overrun: current esp state:
>>> esp:            State=DATA Last State=DATA_DONE
>>> esp:            Latched stat=0x91<IPND,XZERO,IO>   intr=0x10<BUS>   fifo 0x0
>>> esp:            last msg out: IDENTIFY; last msg in: COMMAND COMPLETE
>>> esp:            DMA csr=0xa4240030<FLSH,INTEN>
>>> esp:            addr=fc005860 dmacnt=0 last=fc005858 last_cnt=8
>>> esp:            Cmd dump for Target 6 Lun 0:
>>> esp:            cdblen=10, cdb=[ 0x46 0x2 0x0 0x0 0x0 0x0 0x0 0x0 0x8 0x0
>>> ]
>>> esp:            pkt_state=0xf<XFER,CMD,SEL,ARB>   pkt_flags=0x10000
>>> pkt_statistics=0x0
>>> esp:            cmd_flags=0x462 cmd_timeout=60
>>>
>>> Particularly it seems that Solaris is not happy with respose length
>>>> 8. Any idea, why?

The response length is not 8, it is 40; but Solaris only expected 8 (see 
the CDB in the error dump).

>>> $ sparc-softmmu/qemu-system-sparc -bios ~/ss5-170.bin -m 32 -nographic
>>> -drive if=scsi,unit=6,media=cdrom,file=~/Solaris9cd1.iso
>>
>>    From a quick look, it's the same bug that was reported recently on
>> INQUIRY commands.
>
> If you need I can provide more input.

You can test http://article.gmane.org/gmane.comp.emulators.qemu/133434 
if you have time.

Paolo