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  1. bpf: Failed to load program: Invalid argument
  2. 0: (b7) r1 = 0
  3. 1: (63) *(u32 *)(r10 -4) = r1
  4. last_idx 1 first_idx 0
  5. regs=2 stack=0 before 0: (b7) r1 = 0
  6. 2: (b7) r6 = 512
  7. 3: (b7) r7 = 684837
  8. 4: (05) goto pc+8
  9. 13: (18) r1 = 0xffff0fae79980000
  10. 15: (bf) r2 = r10
  11. 16: (07) r2 += -4
  12. 17: (85) call bpf_map_lookup_elem#1
  13. 18: (15) if r0 == 0x0 goto pc-14
  14. R0=map_value(id=0,off=0,ks=4,vs=1,imm=0) R6=inv512 R7=inv684837 R10=fp0 fp-8=mmmm????
  15. 19: (63) *(u32 *)(r10 -8) = r7
  16. 20: (bf) r1 = r10
  17. 21: (07) r1 += -8
  18. 22: (b7) r2 = 4
  19. 23: (bf) r3 = r0
  20. 24: (85) call bpf_trace_printk#6
  21. last_idx 24 first_idx 18
  22. regs=4 stack=0 before 23: (bf) r3 = r0
  23. regs=4 stack=0 before 22: (b7) r2 = 4
  24. 25: (05) goto pc-21
  25. 5: (61) r1 = *(u32 *)(r10 -4)
  26. 6: (07) r1 += 1
  27. 7: (63) *(u32 *)(r10 -4) = r1
  28. 8: (67) r1 <<= 32
  29. 9: (c7) r1 s>>= 32
  30. 10: (6d) if r6 s> r1 goto pc+2
  31.  
  32. from 10 to 13: R0=inv(id=0) R1=inv(id=0,smin_value=-2147483648,smax_value=511) R6=inv512 R7=inv684837 R10=fp0 fp-8=mmmmmmmm
  33. 13: (18) r1 = 0xffff0fae79980000
  34. 15: (bf) r2 = r10
  35. 16: (07) r2 += -4
  36. 17: (85) call bpf_map_lookup_elem#1
  37. 18: (15) if r0 == 0x0 goto pc-14
  38. R0_w=map_value(id=0,off=0,ks=4,vs=1,imm=0) R6=inv512 R7=inv684837 R10=fp0 fp-8=mmmmmmmm
  39. 19: (63) *(u32 *)(r10 -8) = r7
  40. 20: (bf) r1 = r10
  41. 21: (07) r1 += -8
  42. 22: (b7) r2 = 4
  43. 23: (bf) r3 = r0
  44. 24: (85) call bpf_trace_printk#6
  45. last_idx 24 first_idx 13
  46. regs=4 stack=0 before 23: (bf) r3 = r0
  47. regs=4 stack=0 before 22: (b7) r2 = 4
  48. 25: (05) goto pc-21
  49. infinite loop detected at insn 5
  50. processed 38 insns (limit 1000000) max_states_per_insn 1 total_states 4 peak_states 4 mark_read 2
  51.  
  52. Traceback (most recent call last):
  53. File "hello.py", line 23, in <module>
  54. b.attach_kprobe(event=b.get_syscall_fnname("clone"), fn_name="helloworld2")
  55. File "/usr/lib/python3/dist-packages/bcc/__init__.py", line 654, in attach_kprobe
  56. fn = self.load_func(fn_name, BPF.KPROBE)
  57. File "/usr/lib/python3/dist-packages/bcc/__init__.py", line 394, in load_func
  58. raise Exception("Failed to load BPF program %s: %s" %
  59. Exception: Failed to load BPF program b'helloworld2': Invalid argument
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