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Enabling strace causes OpenSSL to fail initialization

Open fwsGonzo opened this issue 6 years ago • 2 comments

Specifically, it fails to run SSL_load_error_strings properly. On Linux/clang-7 it just sits there stuck, and on macOS it faults with a null-pointer access.

fwsGonzo avatar Apr 19 '18 13:04 fwsGonzo

macaroni with strace enabled:

    [ OpenSSL ] Initializing (OpenSSL 1.0.2p-dev  xx XXX xxxx)
setup_rng
SSL_library_init
SSL_load_error_strings

>>>> !!! CPU 0 EXCEPTION !!! <<<<
Page Fault (14)   EIP  0   CODE 0x10
Page not present, trying to access 0x0
Page read failed.
Instruction fetch. XD

  RAX:  0000000000101dc0  R 8:  000000007fffffff
  RBX:  0000000000000000  R 9:  0000000000101f10
  RCX:  0000000000000000  R10:  0000000000000000
  RDX:  0000000000000000  R11:  0000000000102350

  RBP:  0000000000101f10  R12:  0000000000000000
  RSP:  0000400000055fd0  R13:  0000000000000000
  RSI:  0000000000102350  R14:  0000000000101f10
  RDI:  0000000000101dc0  R15:  0000000000102350
  RIP:  0000000000000000  FLA:  0000000000000246

  CR0:  0000000080010033  CR4:  0000000000000620
  CR1:  0000000000000000  CR8:  0000000000000000
  CR2:  0000000000000000  GDT:  00000000006a3954 (41)
  CR3:  00000000007a5000  IDT:  00000000006b6250 (2559)


	**** PANIC ****
CPU: 0, Reason: Page Fault (14)
Heap is at: 0xeea000 / 0x7fdffff  (diff=118448127)
Heap usage: 7456 / 123127 Kb

[0] 0x0000000000214750 + 0x118: panic
[1] 0x000000000039d5b0 + 0x0bc: __cpu_exception
[2] 0x000000000039e7b8 + 0x000: __cpu_except_15

AndreasAakesson avatar Apr 19 '18 14:04 AndreasAakesson

I had this problem again when implementing s2n. The OS will start but networking will not work. Considering all the cases that lead to this, it is safe to assume that there is a real problem with strace or something related to it.

fwsGonzo avatar Sep 23 '18 20:09 fwsGonzo