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gistfile1.txt

xv6 的代码不会有问题... 虽然我没有完全照抄... 不知道是漏了哪里...

一直停在这一句死循环...没法回去.
Next at t=1276429467
(0) [0x00001ffe4008] 001b:00000000c0000008 (unk. ctxt): jmp .-2 (0xc0000008)      ; ebfe

IDT: 
IDT[0x80]=32-Bit Trap Gate target=0x0008:0x00100290, DPL=3
GDT:
Global Descriptor Table (base=0x000000000011a020, limit=2047):
GDT[0x00]=Data segment, base=0x00000000, limit=0x00000000, Read-Only
GDT[0x01]=Code segment, base=0x00000000, limit=0xffffffff, Execute/Read, Non-Conforming, Accessed, 32-bit
GDT[0x02]=Data segment, base=0x00000000, limit=0xffffffff, Read/Write, Accessed
GDT[0x03]=Code segment, base=0x00000000, limit=0xffffffff, Execute/Read, Non-Conforming, Accessed, 32-bit
GDT[0x04]=Data segment, base=0x00000000, limit=0xffffffff, Read/Write, Accessed
GDT[0x05]=32-Bit TSS (Busy) at 0x005d5020, length 0x00068

eflags 0x00000202: id vip vif ac vm rf nt IOPL=0 of df IF tf sf zf af pf cf
下面这两个不知道是什么... 贴上吧.
status  word: 0x0000: b c3 TOS0 c2 c1 c0 es sf pe ue oe ze de ie
control word: 0x0040: inf RC_NEAREST PC_32 pm um om zm dm im

页表:
0x00000000-0x005d7fff -> 0x000000000000-0x0000005d7fff  // 整个内核的映射
0x1ffe8000-0x1ffe8fff -> 0x00001ffe8000-0x00001ffe8fff  // 进程的内核栈
0xc0000000-0xc0000fff -> 0x00001ffe4000-0x00001ffe4fff  // 进程空间

TSS:
tr:s=0x28, base=0x00000000005d5020, valid=1
ss:esp(0): 0x0010:0x1ffe9000
ss:esp(1): 0x0000:0x00000000
ss:esp(2): 0x0000:0x00000000
cr3: 0x00000000
eip: 0x00000000
eflags: 0x00000000
cs: 0x0000 ds: 0x0000 ss: 0x0000
es: 0x0000 fs: 0x0000 gs: 0x0000
eax: 0x00000000  ebx: 0x00000000  ecx: 0x00000000  edx: 0x00000000
esi: 0x00000000  edi: 0x00000000  ebp: 0x00000000  esp: 0x00000000
ldt: 0x0000
i/o map: 0x0068