the mismatch issue the interrupt and the ISR work well in real hardware, but not in QEMU.
The problem maybe inside the mismatch condition, but I am not familiar with the mismatch handler.
The patch can workaround the mismatch condition. Maybe we should improve the mismatch condition.

2007/4/22, Paul Brook < paul@codesourcery.com>:

On Sunday 22 April 2007 03:01, Wang Cheng Yeh wrote:
> The number of responded bytes from scsi device do not match the expected
> value of lsi53c895a driver. hence, the mismatch interrupt happen, but the
> driver does not always handle it correctly.
> My patch make the responded bytes as expected and the interrupt will not
> happen.

What makes you think padding the response with zeros is the right thing to do?
I think this is a bug elsewhere (maybe in your device driver).

Paul