On 01/24/2011 07:02 AM, naveen yadav wrote: > Hi All, > > > we are using mips32r2 so I want to know which all pages size it can support? > When I modify arch/mips/Kconfig. it boot sucessfully on 16KB page > size. but hang/not boot crash when change page size to 8KB,32KB and 64 > KB. I don't think 8KB and 32KB work on most mips32r2 processors. You would have to check the processor manual to be sure. > > We are using 2.6.30 kernel. > > At Page Size 8KB and 32KB it hang in unpack_to_rootfs() function of > init/initramfs.c > > 64KB it hangs when execute init Kernel panic - not syncing: Attempted > to kill init! I regularly run 4K, 16K, and 64K page sizes with a Debian rootfs. If you run with a broken uClibc toolchain that doesn't support larger pages, it will of course fail. In this case the problem is with your toolchain, not the kernel. David Daney > > config PAGE_SIZE_4KB > bool "4kB" > help > This option select the standard 4kB Linux page size. On some > R3000-family processors this is the only available page size. Using > 4kB page size will minimize memory consumption and is therefore > recommended for low memory systems. > > config PAGE_SIZE_8KB > bool "8kB" > depends on (EXPERIMENTAL&& CPU_R8000) || CPU_CAVIUM_OCTEON > help > Using 8kB page size will result in higher performance kernel at > the price of higher memory consumption. This option is available > only on R8000 and cnMIPS processors. Note that you will need a > suitable Linux distribution to support this. > > config PAGE_SIZE_16KB > bool "16kB" > depends on !CPU_R3000&& !CPU_TX39XX > help > Using 16kB page size will result in higher performance kernel at > the price of higher memory consumption. This option is available on > all non-R3000 family processors. Note that you will need a suitable > Linux distribution to support this. > > config PAGE_SIZE_32KB > bool "32kB" > help > Using 32kB page size will result in higher performance kernel at > the price of higher memory consumption. This option is available > only on cnMIPS cores. Note that you will need a suitable Linux > distribution to support this. > > config PAGE_SIZE_64KB > bool "64kB" > depends on EXPERIMENTAL&& !CPU_R3000&& !CPU_TX39XX > help > Using 64kB page size will result in higher performance kernel at > the price of higher memory consumption. This option is available on > all non-R3000 family processor. Not that at the time of this > writing this option is still high experimental. > > _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
