memory problem for s5pv210 porting

[meng-qy]

Hello,l4-hackers,

       We are working at porting fiasco to s5pv210 platform. Now, we 
encounter a unstable problem when fiasco booting. Sometimes, the system 
seems ok. But more often, the system dead in different  places when 
start moe. We trace the program and find that the system halts in 
function "handle_page_fault" of 
sigma0(dir=/l4/pkg/sigma0/server/src/memmap.cc). The log is described 
more specifically as following:

case 1:  Page fault
........
Calibrating timer loop... done.
SIGMA0: Hello!
   KIP @ 20002000
   allocated 4KB for maintenance structures
SIGMA0: Dump of all resource maps
RAM:------------------------
[0:20000000;20000fff]
[0:20065000;2008ffff]
[0:20097000;20097fff]
[0:2009f000;2013ffff]
[4:20140000;20171fff]
[0:20172000;20177fff]
[4:20178000;2018efff]
[0:2018f000;21010fff]
[4:21011000;21011fff]
[0:21012000;210fffff]
[4:21100000;21133fff]
[0:21134000;3effffff]
IOMEM:----------------------
[0:0;1fffffff]
[0:40000000;ffffffff]
SIGMA0: alloc addr ok, addr is 20140000      //which we add in func 
handle_page_fault
SIGMA0: alloc addr ok, addr is 2017d000
SIGMA0: alloc addr ok, addr is 20167000
SIGMA0: alloc addr ok, addr is 2018e000
SIGMA0: alloc addr ok, addr is 20166000
SIGMA0: alloc addr ok, addr is 20179000
SIGMA0: alloc addr ok, addr is 20178000
SIGMA0: alloc addr ok, addr is 2018d000
SIGMA0: alloc addr ok, addr is 20145000
SIGMA0: alloc addr ok, addr is 20163000
SIGMA0: alloc addr ok, addr is 20162000
SIGMA0: alloc addr ok, addr is 20141000
SIGMA0: alloc addr ok, addr is 20164000
SIGMA0: alloc addr ok, addr is 20143000
SIGMA0: alloc addr ok, addr is 20149000
SIGMA0: alloc addr ok, addr is 2014a000
SIGMA0: alloc addr ok, addr is 2017e000
SIGMA0: alloc addr ok, addr is 20153000
SIGMA0: alloc addr ok, addr is 2014b000
SIGMA0: alloc addr ok, addr is 2014d000
SIGMA0: alloc addr ok, addr is 2014e000
SIGMA0: alloc addr ok, addr is 2014f000
SIGMA0: alloc addr ok, addr is 20150000
SIGMA0: alloc addr ok, addr is 20152000
SIGMA0: alloc addr ok, addr is 20154000
SIGMA0: alloc addr ok, addr is 20155000
SIGMA0: alloc addr ok, addr is 20156000
SIGMA0: alloc addr ok, addr is 20160000
SIGMA0: alloc addr ok, addr is 20168000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2016e000
SIGMA0: alloc addr ok, addr is 2016f000
SIGMA0: alloc addr ok, addr is 20169000
SIGMA0: alloc addr ok, addr is 2016c000
SIGMA0: alloc addr ok, addr is 2016b000
MOE: Hello world
SIGMA0: Page fault, did not find page at 200020e0 for 4
SIGMA0: Page fault, did not find page at 200020e0 for 4
SIGMA0: Page fault, did not find page at 200020e0 for 4
SIGMA0: Page fault, did not find page at 200020e0 for 4
SIGMA0: Page fault, did not find page at 200020e0 for 4         //  
endless loop
SIGMA0: Page fault, did not find page at 200020e0 for 4

case 2: alloc ok
......
IOMEM:----------------------
[0:0;1fffffff]
[0:40000000;ffffffff]
SIGMA0: alloc addr ok, addr is 20140000
SIGMA0: alloc addr ok, addr is 2017d000
SIGMA0: alloc addr ok, addr is 20167000
SIGMA0: alloc addr ok, addr is 2018e000
SIGMA0: alloc addr ok, addr is 20166000
SIGMA0: alloc addr ok, addr is 20179000
SIGMA0: alloc addr ok, addr is 20178000
SIGMA0: alloc addr ok, addr is 2018d000
SIGMA0: alloc addr ok, addr is 20145000
SIGMA0: alloc addr ok, addr is 20163000
SIGMA0: alloc addr ok, addr is 20162000
SIGMA0: alloc addr ok, addr is 20141000
SIGMA0: alloc addr ok, addr is 20164000
SIGMA0: alloc addr ok, addr is 20143000
SIGMA0: alloc addr ok, addr is 20149000
SIGMA0: alloc addr ok, addr is 2014a000
SIGMA0: alloc addr ok, addr is 2017e000
SIGMA0: alloc addr ok, addr is 20153000
SIGMA0: alloc addr ok, addr is 2014b000
SIGMA0: alloc addr ok, addr is 2014d000
SIGMA0: alloc addr ok, addr is 2014e000
SIGMA0: alloc addr ok, addr is 2014f000
SIGMA0: alloc addr ok, addr is 20150000
SIGMA0: alloc addr ok, addr is 20152000
SIGMA0: alloc addr ok, addr is 20154000
SIGMA0: alloc addr ok, addr is 20155000
SIGMA0: alloc addr ok, addr is 20156000
SIGMA0: alloc addr ok, addr is 20160000
SIGMA0: alloc addr ok, addr is 20168000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000
SIGMA0: alloc addr ok, addr is 2017c000      //endless loop

      Who can give some guidance or suggestion?

Steven Meng





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