移植ucliinux到S3C44B0x核心板出现问题

echo_小点儿

每次都是执行到init/main.c中的start_kernel()函数中的sti（）函数后就死掉，
start_kernel()函数如下：
asmlinkage void __init start_kernel(void)
{
        char * command_line;
        extern char saved_command_line[];
         unsigned int ch;
       char a[]="hello!";
     puts(a);
     printk("\n put debug:arrive at start_kernel \n");
      printk("\n debug:arrive at start_kernel \n");
#ifdef WANGBO_DEBUG
        printk(KERN_INFO "Debug: start_kernel called.\n");
#endif

/*
* Interrupts are still disabled. Do necessary setups, then
* enable them
*/
        lock_kernel();
    printk("\n put debug:lock_kernel is over!\n");
        printk(linux_banner);
        setup_arch(&command_line);
   //  puts("\n kernel command line:\n");
        printk("Kernel command line: %s\n", saved_command_line);
     //puts(saved_command_line);
        parse_options(command_line);
    printk("\n put debug:parse_options is over!\n");
trap_init();
     printk("\n put debug:trap_init is over!\n");
        init_IRQ();
     printk("\n put debug:init_IRQ is over!\n");
        sched_init();
     printk("\n put debug:sched_init is over!\n");
        softirq_init();
     printk("\n put debug:softirq_init is over!\n");
        time_init();
     printk("\n put debug:time_init is over!\n");


        /*
         * HACK ALERT! This is early. We're enabling the console before
         * we've done PCI setups etc, and console_init() must be aware of
         * this. But we do want output early, in case something goes wrong.
         */
        //sti();
    //  puts("\n sti debug:sti is over!\n");
        console_init();
      printk("\n put debug:console_init is over!\n");
#ifdef CONFIG_MODULES
        init_modules();
#endif
      printk("\n put debug:init_modules is over!\n");
        if (prof_shift) {
                unsigned int size;
                /* only text is profiled */
                prof_len = (unsigned long) &_etext - (unsigned long) &_stext;
                prof_len >>= prof_shift;
prof_len = (unsigned long) &_etext - (unsigned long) &_stext;
                prof_len >>= prof_shift;

                size = prof_len * sizeof(unsigned int) + PAGE_SIZE-1;
                prof_buffer = (unsigned int *) alloc_bootmem(size);
        }

        kmem_cache_init();
       sti();
printk("\n put debug:sti is over!\n");
        calibrate_delay();
      puts("\n put debug:calibrate_delay is over!\n");
#ifdef CONFIG_BLK_DEV_INITRD
        if (initrd_start && !initrd_below_start_ok &&
                        initrd_start < min_low_pfn << PAGE_SHIFT) {
                printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - "
                    "disabling it.\n",initrd_start,min_low_pfn << PAGE_SHIFT);
                initrd_start = 0;
        }
#endif
     puts("\nput debug:later mem_init.\n");
        mem_init();
        kmem_cache_sizes_init();
     puts("\nput debug:kmem_cache_sizes_init is over.\n");
        pgtable_cache_init();
     puts("\nput debug:pgtable_cache_init is over.\n");
        if (num_mappedpages == 0)
                num_mappedpages = num_physpages;

        fork_init(num_mappedpages);
puts("\nput debug:fork_init is over.\n");
        proc_caches_init();
      puts("\nput debug:proc_caches_init is over.\n");
        vfs_caches_init(num_physpages);
      puts("\nput debug:vfs_caches_init is over.\n");
        buffer_init(num_physpages);
      puts("\nput debug:buffer_init is over.\n");
        page_cache_init(num_physpages);
      puts("\nput debug:page_cache_init is over.\n");
#if defined(CONFIG_ARCH_S390)
        ccwcache_init();
#endif
        signals_init();
#ifdef CONFIG_PROC_FS
        proc_root_init();
#endif
      puts("put debug:later check_bugs.\n");
        check_bugs();
        printk("POSIX conformance testing by UNIFIX\n");
      puts("POSIX conformance testing by UNIFIX\n");
        /*
         *      We count on the initial thread going ok
         *      Like idlers init is an unlocked kernel thread, which will
         *      make syscalls (and thus be locked).
         */
        smp_init();
#if defined(CONFIG_SYSVIPC)
        ipc_init();
#endif
        rest_init();
}
输出的结果如下：
Nand Flash : ID: 0xEC76,   Size: 64MByte

Nandflash没有被格式化,运行NFormat工具可对其进行格式化。

Load image.rom...


Start uClinux
Uncompressing Linux.......
.....
.....
......
.....
.....
......
.. done, booting the kernel.
hello!
put debug:arrive at start_kernel

debug:arrive at start_kernel

put debug:lock_kernel is over!
Linux version 2.4.24-uc0 (root@ubuntu) (gcc version 2.95.3 20010315 (release)(ColdFire patches - 20010318 from http://fiddes.net/coldfire/)(uClinux XIP and shared lib patches from http://www.snapgear.com/)) #960 Tue Aug 17 19:23:13 CST 2010
Processor: Samsung S3C44B0X revision 0
Architecture: S3C44B0X
On node 0 totalpages: 2048
zone(0): 0 pages.
zone(1): 2048 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/rom0 init=/linuxrc

put debug:parse_options is over!

put debug:trap_init is over!

put debug:init_IRQ is over!

put debug:sched_init is over!

put debug:softirq_init is over!

put debug:time_init is over!

put debug:console_init is over!

put debug:init_modules is over!

put debug:kmen_cache_init is over!
有时会出现以下错误信息：（前面重复的省略）
put debug:kmen_cache_init is over!
Bad mode in data abort handler detected: mode IRQ_32
Vectors:
Stubs:
Internal error: Oops: 0
CPU: 0
pc : [<01d5f250>]    lr : [<0c012050>]    Not tainted
sp : 0c129f98  ip : 0c129fbc  fp : 00000000
r10: 00000000  r9 : 00111800  r8 : 00111a00
r7 : 0c151a00  r6 : 0c131d9c  r5 : 00000042  r4 : 00000000
r3 : 00000000  r2 : 60000053  r1 : 00000200  r0 : 4054f162
Flags: nZCv  IRQs off  FIQs off  Mode IRQ_32  Segment user
Control: 0
Process swapper (pid: 0, stackpage=0c129000)
Stack:
0c129fc0:                                      0c012050 01d5f250 600000d2 ffffff
ff
0c129fe0: 0c12ab38 6c6c6568 0000216f 07ff0000  00000000 0c12a000 0c2ce864 0c0085
58
Backtrace: no frame pointer
Code: 00004e20 00002873 (00000200) 00000200 00000200
Kernel panic: Attempted to kill the idle task!
In idle task - not syncing