jos.out.faultread

+ ld obj/kern/kernel
+ mk obj/kern/kernel.img
6828 decimal is 15254 octal!
Physical memory: 66556K available, base = 640K, extended = 65532K
check_page_alloc() succeeded!
check_page() succeeded!
check_kern_pgdir() succeeded!
check_page_installed_pgdir() succeeded!
SMP: CPU 0 found 1 CPU(s)
enabled interrupts: 1 2 4
[00001001] user fault va 00000000 ip 0080003f
TRAP frame at 0xf028207c from CPU 0
  edi  0x00000000
  esi  0x00000000
  ebp  0xeebfdfc0
  oesp 0xefffffdc
  ebx  0x00000000
  edx  0x00000080
  ecx  0x0000007c
  eax  0x00000000
  es   0x----0023
  ds   0x----0023
  trap 0x0000000e Page Fault
  cr2  0x00000000
  err  0x00000004 [user, read, not-present]
  eip  0x0080003f
  cs   0x----001b
  flag 0x00000292
  esp  0xeebfdfa8
  ss   0x----0023
FS is running
FS can do I/O
Device 1 presence: 1
superblock is good
No runnable environments in the system!
Welcome to the JOS kernel monitor!
Type 'help' for a list of commands.
qemu: terminating on signal 15 from pid 23163