dm_target_crypt: Setting 20 mpipe write buffers
panic: BADFREE2
cpuid = 2
Trace beginning at frame 0xfffff801186ff5f8
_kfree() at _kfree+0x593 0xffffffff80658413 
_kfree() at _kfree+0x593 0xffffffff80658413 
dm_table_load_ioctl() at dm_table_load_ioctl+0x394 0xffffffff82602ce4 
dmioctl() at dmioctl+0x2eb 0xffffffff8260083b 
dev_dioctl() at dev_dioctl+0x65 0xffffffff8062cdb5 
devfs_fo_ioctl() at devfs_fo_ioctl+0x95 0xffffffff80921bb5 
Debugger("panic")

CPU2 stopping CPUs: 0x0000003b
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>