bgetvp: overlapr 0000000000000000/4096 0000000000000400 bp 0xfffff8004f6ec0b8 bx 0xfffff8004f5804c8
panic: bgetvp - overlapping buffer
cpuid = 3
Trace beginning at frame 0xfffff801188f92f8
bgetvp() at bgetvp+0x129 0xffffffff806f44c9 
bgetvp() at bgetvp+0x129 0xffffffff806f44c9 
getblk() at getblk+0x18b 0xffffffff806d703b 
breadnx() at breadnx+0x284 0xffffffff806d7714 
ext2_vget() at ext2_vget+0xf8 0xffffffff8260c698 
ext2_lookup() at ext2_lookup+0x4f6 0xffffffff82608fe6 
Debugger("panic")

CPU3 stopping CPUs: 0x00000037
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>