Re: [coLinux-users] 0.7.2 less reliable on dual core?

[Henry N. <Hen...@Ar...>]

Henry Nestler wrote:
> Hello baldyeti,
> 
>>> Anyway it had the following:
>>>
>>> 	PFN too high! 523367 >= 491520
>>> and
>>> 	PFN too high! 523444 >= 491520
>> For left value have no idea.
>> The right value seems me ok. 491520 * 4K = 2013265920 Bytes (1920 MB)
>> This are the 2GB minus your graphic card.
> 
> This can be a bug in memory allocation. Perhaps a race condition. I will
> add some bug checks near this code and send a special version later.
> 

One interesting found.
http://msdn2.microsoft.com/en-us/library/ms802812.aspx

We use MmAllocatePagesForMdl. MSDN says, that it can allocate AGP
memory. That is graphic mem. Can this the probleme here, because you
have shared memory for your graphic card? Give ntkernel such memory to
colinux?

Currenty we use HighAddress = 0x100000000
Should we use the system max mem here? (1920 MB in your case)

Here is a special build:
http://www.henrynestler.com/colinux/testing/pfn-check-0.7.3/20080303-pfn-check/

I have added many bugchecks near the memory allocations. Please run this
on your system with debug-daemon and give me all the lines you found
with "Bug: " and the "PFN". Please, complete XML lines with location to
the source code.

Before you starts colinux, please run the debuger:
   del debug.xml
   colinux-debug-daemon.exe -p -d -s prints=31,misc=31 -f debug.xml

-- 
Henry N.