Plugging in external drive crashes osx (hfs_UNswap_BTNode: invalid forward link)

Hi,

My WD drive suddenly started crashing my machine. Steps:

- Plug in drive

- About 2 seconds later it shows up in Finder

- About 2 seconds after that it completely crashes the machine (does exactly the same thing with a totally different mac)

Questions:

- What is the machine doing when you plug in the harddrive (i.e. scanning it or running spotlight index or something?)

- Is there any way to disable these automatic actions (to prevent instant crashes)?

- What is the best thing to do to try to find/fix the problem if I could get my machines to stop crashing?

Have this crash report:

panic(cpu 4 caller 0xffffff8006533cdc): "hfs_UNswap_BTNode: invalid forward link (0x0000045d == 0x0000045d)\n"@/SourceCache/xnu/xnu-2782.50.1/bsd/hfs/hfs_endian.c:291

Backtrace (CPU 4), Frame : Return Address

0xffffff81f348b1c0 : 0xffffff800612ad21

0xffffff81f348b240 : 0xffffff8006533cdc

0xffffff81f348b290 : 0xffffff80065243c7

0xffffff81f348b2c0 : 0xffffff8006379295

0xffffff81f348b3d0 : 0xffffff800637870a

0xffffff81f348b480 : 0xffffff8006376ca4

0xffffff81f348b4d0 : 0xffffff800655d951

0xffffff81f348b500 : 0xffffff8006562e70

0xffffff81f348b5c0 : 0xffffff80065415c2

0xffffff81f348b6e0 : 0xffffff800636e966

0xffffff81f348b770 : 0xffffff80065ac4fa

0xffffff81f348bf50 : 0xffffff800664b376

0xffffff81f348bfb0 : 0xffffff80062344a6

....

BSD process name corresponding to current thread: mds_stores

Mac OS version:

14F1021

...

System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)

System uptime in nanoseconds: 771433381945

last loaded kext at 760477600114: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f88cba000, size 69632)

last unloaded kext at 753252105865: com.apple.driver.AppleUSBCDC 4.3.3b1 (addr 0xffffff7f88caf000, size 16384)