2.6.38.2 kernel with trace-cmd git pulled this morning: trace-cmd record -e kvm trace-cmd report 2>&1 | less trace-cmd: No such file or directory function ftrace_print_symbols_seq not defined failed to read event print fmt for kvm_nested_vmexit_inject function ftrace_print_symbols_seq not defined failed to read event print fmt for kvm_nested_vmexit function ftrace_print_symbols_seq not defined failed to read event print fmt for kvm_exit bad op token { failed to read event print fmt for kvm_emulate_insn qemu-kvm-1864 [002] 2253.714134: kvm_entry: vcpu 1 qemu-kvm-1863 [008] 2253.714136: kvm_exit: [FAILED TO PARSE] exit_reason=44 guest_rip=0xc01185ed isa=1 info1=4272 info2=0 qemu-kvm-1864 [002] 2253.714138: kvm_exit: [FAILED TO PARSE] exit_reason=44 guest_rip=0xc01185ed isa=1 info1=4272 info2=0 qemu-kvm-1863 [008] 2253.714145: kvm_emulate_insn: [FAILED TO PARSE] rip=3222373869 csbase=0 len=2 insn=<89>^H]<C3><8B>^U<EC><95>K<C0>U <89><E5>]<8D>^E flags=5 failed=0 I have not used trace-cmd much, so I am not familiar with the code. Is this a known issue? Suggestions on how to debug? Thanks, David -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html