lkd> !lbr.lbr
Access LBR (Last Branch Recording) registers of IA-32 CPU.
Version 1.0.0.2 by Raymond
MSR_DEBUGCTLB=0
LBR bit is cleared now.
MSR_LASTBRANCH_TOS=0
MSR_LASTBRANCH_0: [00000000] +0
MSR_LASTBRANCH_0: [00000000] +0
MSR_LASTBRANCH_7: [00000000] +0
MSR_LASTBRANCH_7: [00000000] +0
MSR_LASTBRANCH_6: [00000000] +0
MSR_LASTBRANCH_6: [00000000] +0
MSR_LASTBRANCH_5: [00000000] +0
MSR_LASTBRANCH_5: [00000000] +0
MSR_LASTBRANCH_4: [00000000] +0
MSR_LASTBRANCH_4: [00000000] +0
MSR_LASTBRANCH_3: [00000000] +0
MSR_LASTBRANCH_3: [00000000] +0
MSR_LASTBRANCH_2: [00000000] +0
MSR_LASTBRANCH_2: [00000000] +0
MSR_LASTBRANCH_1: [00000000] +0
MSR_LASTBRANCH_1: [00000000] +0
LBR bit is set now.