Re: I/O flexpages / new mapping DB issue with overlapping ports

[Espen Skoglund]
> [Frank Mehnert]
>> Hi,
>> I have a problem using I/O flexpages with Pistachio. My application
>> raises I/O pagefaults and the pager replies the corresponding I/O
>> flexpage. But an assertion is triggered if an I/O fpage should be
>> mapped while the application has already mapped parts of that I/O
>> fpage, for example

>> 1. I/O fault port=0xcfb size=1  =>  map I/O flexpage  (ok)
>> 2. I/O fault port=0xcf8 size=4  =>  map I/O flexpage

>> At this point a kernel assertion is triggered:

>> Assertion isize > newsize failed in 
>> file /home/fm3/src/pistachio/kernel/src/generic/vrt.cc, line 346 
>> (fn=f01029b1)

>> Any ideas?

> Would it be possible to enable the VRT_MAP tracepoint?  That would
> help a lot in figuring out what's going on.

Oh... and the VRT_MAPCTRL tracepoint as well.

	eSk