2010/2/12 Zheng Bao <[email protected]>: > > >> Date: Fri, 12 Feb 2010 16:54:43 -0700 >> From: [email protected] >> To: [email protected] >> CC: [email protected] >> Subject: Re: [coreboot] Data in memory changes unexpectedly >> ininitialize_cpus >> >> On Fri, Feb 12, 2010 at 4:48 PM, Marc Jones <[email protected]> wrote: >> > On Thu, Feb 11, 2010 at 6:54 PM, Bao, Zheng <[email protected]> wrote: >> >> I kept on finding the problem. Now it is narrowed down to the line 108, >> >> src/arch/i386/coreboot_ram.ld. It is very, very, very, very confused. >> >> My CONFIG_RAMBASE should be 0x200000, which is more than 0x100000, but >> >> the location counter "." is CONFIG_STACK_SIZE. Even if I manually set >> >> ". = CONFIG_STACK_SIZE * 2 ;", I can not get the correct size. But if I >> >> set >> >> ". = 0x2000 * 2 ;", or ". = CONFIG_STACK_SIZE << 1", it is right. I >> >> kinda doubt the compiler and linker. >> >> >> >> Can you try it on your building machine? Just try the >> >> Serengeti_cheetah_fam10 and don't need the hardware. Just check the >> >> build/coreboot_ram.map to see if the _estack - _stack is multiple of >> >> CONFIG_STACK_SIZE. That problem should happen on all the fam10 board if >> >> it is built on my building machine. >> > >> > Is this due to the hard coded values in lapic_cpu_init. I don't really >> > understand the comment or what it is doing. I would expect the AP >> > stacks to be setup based on estack as well. >> > >> > // for all APs, let use stack after pgtbl, 20480 is the pgtbl size for >> > every cpu >> > stack_end = 0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS - >> > (CONFIG_STACK_SIZE*index); >> > >> >> This is what I get in my map file. It seems reasonable. >> >> 00230000 A _stack >> 00238000 A _estack >> 00238000 A _heap >> 002f8000 A _eheap >> 002f8000 A _eram_seg >> 01000000 A CONFIG_RAMTOP >> > what is the CONFIG_STACK_SIZE in your map file?
00008000 A CONFIG_STACK_SIZE I buillt svn head of serengeti_cheetah_fam10. Marc -- http://se-eng.com -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
