fatal error: unexpected signal during runtime execution I0713 15:13:53.636258 499286 watchdog.go:225] Watchdog stopped [signal SIGSEGV: segmentation violation code=0x1 addr=0x4 pc=0x278bb11] runtime stack: runtime.throw({0x528c68?, 0x0?}) GOROOT/src/runtime/panic.go:1047 +0x5d fp=0x7f0cd7fff050 sp=0x7f0cd7fff020 pc=0x124d0bd runtime: g 0: unexpected return pc for runtime.sigpanic called from 0x278bb11 stack: frame={sp:0x7f0cd7fff050, fp:0x7f0cd7fff0b0} stack=[0x7f0cd77ff5c0,0x7f0cd7fff1c0) 0x00007f0cd7ffef50: 0x000000000000000e 0x000000000000001f 0x00007f0cd7ffef60: 0x000000000278bb11 0x0000000000000004 0x00007f0cd7ffef70: 0x0000000000000001 0x000000000124d0bd 0x00007f0cd7ffef80: 0x00007f0cd7fff020 0x0000000000510da8 0x00007f0cd7ffef90: 0x00007f0cd7ffefd0 0x000000000124d488 0x00007f0cd7ffefa0: 0x000000c000f141a0 0x000000000074d908 0x00007f0cd7ffefb0: 0x0000000000000001 0x00007f0cd7fff020 0x00007f0cd7ffefc0: 0x000000000124d0bd 0x000000c000f141a0 0x00007f0cd7ffefd0: 0x00007f0cd7fff010 0x000000000124d40c 0x00007f0cd7ffefe0: 0x00007f0cd7ffeff0 0x000000c000f141a0 0x00007f0cd7ffeff0: 0x000000000124d440 0x000000c000f141a0 0x00007f0cd7fff000: 0x000000000124d0bd 0x00007f0cd7fff020 0x00007f0cd7fff010: 0x00007f0cd7fff040 0x000000000124d0bd 0x00007f0cd7fff020: 0x00007f0cd7fff028 0x000000000124d0e0 0x00007f0cd7fff030: 0x0000000000528c68 0x000000000000002a 0x00007f0cd7fff040: 0x00007f0cd7fff0a0 0x0000000001265bc9 0x00007f0cd7fff050: <0x0000000000528c68 0x0000000000000000 0x00007f0cd7fff060: 0x000000c000000001 0x000000c000f141a0 0x00007f0cd7fff070: 0x0000000002ed0a20 0x0000000002ed5a20 0x00007f0cd7fff080: 0x000000c000f141a0 0x0000000002793594 0x00007f0cd7fff090: 0x0000000002ed0a20 0x0000000000000200 0x00007f0cd7fff0a0: 0x00007f0cd7fff128 !0x000000000278bb11 0x00007f0cd7fff0b0: >0x0000000002ede280 0x0000000002793d01 0x00007f0cd7fff0c0: 0x00000000028c389c 0x0000000000000001 0x00007f0cd7fff0d0: 0x00007f0cd7fff128 0x00007f0cd7fff100 0x00007f0cd7fff0e0: 0x000000c000f12000 0x000000c000f141a0 0x00007f0cd7fff0f0: 0x0000000000000400 0x000000000128747a 0x00007f0cd7fff100: 0x000000000128786c 0x000000000128949b 0x00007f0cd7fff110: 0x00000000028c38b8 0x00007f0c00000001 0x00007f0cd7fff120: 0x0000000000000001 0x00007f0cd7fff168 0x00007f0cd7fff130: 0x00000000014009a9 0x000000000128786c 0x00007f0cd7fff140: 0x000000c000bd0670 0x00007f0db3703900 0x00007f0cd7fff150: 0x00007f0db2e1e6a0 0x000000c0000061a0 0x00007f0cd7fff160: 0x000000c000a52038 0x00007f0cd7fff198 0x00007f0cd7fff170: 0x00000000012568e3 0x000000c0000061a0 0x00007f0cd7fff180: 0x0000000400000002 0x000000c000f12000 0x00007f0cd7fff190: 0x000000c0000061a0 0x000000c000bd06b0 0x00007f0cd7fff1a0: 0x00000000012839c3 0x000000c0000061a0 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:821 +0x3e9 fp=0x7f0cd7fff0b0 sp=0x7f0cd7fff050 pc=0x1265bc9