Re: [microblaze-uclinux] [patch] valid data left in rx fifo: no moreinterrupts

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Yashi,

Yasushi SHOJI wrote:

> Unless I'm (well, actually it's not me but my hardware guy helped me
> reading the source ;) mis-reading, INTC gets UART Lite interrupt with
> FDC.
> 
> Even if you clear FDC while C is asserted with level, you won't get
> signal.

It should be easy to test - drop a printk in the top of the uartlite 
interrupt handler, and trigger the error condition - either it prints 
nothing, or fills the screen.  A good exercise, help to understand the 
behaviour of the intc.

>>Have you tried copy and pasting a large chunk of text into a terminal 
>>window after your fix?  That usually is a good way to hang the serial 
>>driver...
> 
> yup, i did that, and the patch fix the problem.

Well really that's all that matters!    Great job spotting and fixing 
this.  I'll check on mbvanilla (and hopefully Jozsef too), and get it 
into CVS next week.

John
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