1. (gdb) r
  2. Starting program: /home/am11/libunwind/tests/.libs/Lrs-race
  3. [Thread debugging using libthread_db enabled]
  4. [New Thread 1 (LWP 1)]
  5. [New LWP 2 ]
  6. [New LWP 3 ]
  7. [New Thread 2 (LWP 2)]
  8. [New Thread 3 (LWP 3)]
  9. Thread 5 received signal SIGPIPE, Broken pipe.
  10. [Switching to Thread 2 (LWP 2)]
  11. 0xfffffc7fef29d680 in syscall () from /lib/64/libc.so.1
  12. (gdb) bt
  13. #0 0xfffffc7fef29d680 in syscall () from /lib/64/libc.so.1
  14. #1 0xfffffc7fe7376eaa in write_validate (addr=<optimized out>) at x86_64/Ginit.c:141
  15. #2 mincore_validate (addr=0xfffffc7feedde000, len=<optimized out>) at x86_64/Ginit.c:171
  16. #3 0xfffffc7fe7376d28 in validate_mem (addr=18446740225131405312) at x86_64/Ginit.c:308
  17. #4 access_mem (as=<optimized out>, addr=18446740225131406304, val=0xfffffc7feedddf68, write=<optimized out>, arg=<optimized out>) at x86_64/Ginit.c:330
  18. #5 0xfffffc7fe7377724 in dwarf_get (c=0xfffffc7feeddeab0, c=0xfffffc7feeddeab0, val=0xfffffc7feedddf68, loc=...) at ../include/tdep-x86_64/libunwind_i.h:169
  19. #6 _ULx86_64_access_reg ([email protected]=0xfffffc7feeddeab0, reg=<optimized out>, [email protected]=0xfffffc7feedddf68, [email protected]=0) at x86_64/Gregs.c:130
  20. #7 0xfffffc7fe73767b1 in _ULx86_64_get_reg ([email protected]=0xfffffc7feeddeab0, regnum=<optimized out>, [email protected]=0xfffffc7feedddf68) at mi/Gget_reg.c:40
  21. #8 0xfffffc7fe737b4f2 in apply_reg_state ([email protected]=0xfffffc7feeddeab0, [email protected]=0xfffffc7feedde1b8) at dwarf/Gparser.c:802
  22. #9 0xfffffc7fe737bec6 in _ULx86_64_dwarf_step ([email protected]=0xfffffc7feeddeab0) at dwarf/Gparser.c:974
  23. #10 0xfffffc7fe7377c84 in _ULx86_64_step ([email protected]=0xfffffc7feeddeab0) at x86_64/Gstep.c:71
  24. #11 0xfffffc7fe73762c6 in slow_backtrace (uc=0xfffffc7feedde350, size=20, buffer=0xfffffc7feeddeef0) at mi/backtrace.c:45
  25. #12 unw_backtrace ([email protected]=0xfffffc7feeddeef0, [email protected]=20) at mi/backtrace.c:72
  26. #13 0x000000000040436c in foo_0 () at Lrs-race.c:52
  27. #14 0x0000000000404395 in bar (p=<optimized out>) at Lrs-race.c:1341
  28. #15 0xfffffc7fef295a1c in _thrp_setup () from /lib/64/libc.so.1
  29. #16 0xfffffc7fef295d30 in ?? () from /lib/64/libc.so.1
  30. #17 0x0000000000000000 in ?? ()
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