On Thu, Jun 03, 2010 at 08:13:35PM +0530, Uma shankar wrote: > Hi, > > It is my understanding that in ARM, the MMU setting for > kernel VA range ( 0xc0000000 onwards ) > is set up using the section-sized mapping ( 1 Mb in size ) , as this > range maps to a contiguous physical address range. > > I am trying out a memory-checking tool on Cortex. This tool has the > requirement that it needs to be able to set up PTE for each 4 Kb > range of kernel address. > > So, paging_init ( arch/arm/mm/mmu.c ) is modified for this. > > But , with this MMU setting, the kernel hangs somewhere after > freeing init memory. ( "freeing init mem" is the last print I see on > console. ) > > For 3-level page-table setting of kernel VA, do I have to change > something else also ? It's related to arm architecture. Please, Cced linux-arm-kernel mailing list. Maybe they can solve your problem. P.S) Please send your patch with question, symptom more detail and oops if you can get it. > > thanks > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxxx For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>