quit()

vagrant@precise64:~/mozilla-central/js/src/obj-debug-ubsan$ ./js
js> quit()
../assembler/assembler/AssemblerBuffer.h:121:13: runtime error: store to misaligned address 0x7ffff8d0d2bb for type 'int', which requires 4 byte alignment
0x7ffff8d0d2bb: note: pointer points here
 50  48 81 ec 00 00 00 00 00  e0 d2 d0 f8 ff 7f 00 00  20 d8 d0 f8 ff 7f 00 00  68 d8 d0 f8 ff 7f 00
              ^
../assembler/assembler/AssemblerBuffer.h:128:13: runtime error: store to misaligned address 0x7ffff8d0d374 for type 'int64_t' (aka 'long'), which requires 8 byte alignment
0x7ffff8d0d374: note: pointer points here
  63 48 49 bb 5e 7f 00 00  00 00 00 00 00 00 00 00  b0 d3 d0 f8 00 00 00 00  01 00 00 00 00 00 00 00
              ^
../assembler/assembler/X86Assembler.h:2894:9: runtime error: store to misaligned address 0x7ffff8d0d387 for type 'int32_t' (aka 'int'), which requires 4 byte alignment
0x7ffff8d0d387: note: pointer points here
 85 c0 0f 84 00  00 00 00 00 00 00 00 00  f0 d4 d0 f8 ff 7f 00 01  70 d8 d0 f8 ff 7f 00 00  a0 d2 d0
             ^
../assembler/assembler/X86Assembler.h:2890:16: runtime error: load of misaligned address 0x000009368732 for type 'int32_t' (aka 'int'), which requires 4 byte alignment
0x000009368732: note: pointer points here
 c4 0f  0f 84 ff ff ff ff cc 2c  0a 20 20 20 20 20 20 20  20 22 6d 69 6e 69 6d 75  6d 53 69 67 6e 69
              ^
../ion/shared/Assembler-x86-shared.h:1329:9: runtime error: load of misaligned address 0x7f5e2297a0dc for type 'uintptr_t' (aka 'unsigned long'), which requires 8 byte alignment
0x7f5e2297a0dc: note: pointer points here
  63 48 49 bb ff ff ff ff  ff ff ff ff 41 53 68 00  00 00 00 85 c0 0f 84 be  00 00 00 83 f8 01 0f 84
              ^
../ion/shared/Assembler-x86-shared.h:1330:9: runtime error: store to misaligned address 0x7f5e2297a0dc for type 'uintptr_t' (aka 'unsigned long'), which requires 8 byte alignment
0x7f5e2297a0dc: note: pointer points here
  63 48 49 bb ff ff ff ff  ff ff ff ff 41 53 68 00  00 00 00 85 c0 0f 84 be  00 00 00 83 f8 01 0f 84
              ^
../assembler/assembler/X86Assembler.h:2872:16: runtime error: load of misaligned address 0x7f5e2297a7a2 for type 'void *', which requires 8 byte alignment
0x7f5e2297a7a2: note: pointer points here
 fa ff  49 bf 71 00 00 00 00 00  00 00 41 ff e7 4c 89 cb  ff d7 41 5e 49 c1 ee 04  4c 01 f4 41 5c 49
              ^
../assembler/assembler/X86Assembler.h:2883:9: runtime error: store to misaligned address 0x7f5e2297a7a2 for type 'const void *', which requires 8 byte alignment
0x7f5e2297a7a2: note: pointer points here
 fa ff  49 bf 71 00 00 00 00 00  00 00 41 ff e7 4c 89 cb  ff d7 41 5e 49 c1 ee 04  4c 01 f4 41 5c 49
              ^
../assembler/assembler/AssemblerBuffer.h:107:13: runtime error: store to misaligned address 0x7ffff8d0d2cd for type 'short', which requires 2 byte alignment
0x7ffff8d0d2cd: note: pointer points here
 83 c4 10 c2 00 00 f2  44 0f 11 7c 24 78 f2 44  0f 11 74 24 70 f2 44 0f  11 6c 24 68 f2 44 0f 11  64
             ^

vagrant@precise64:~/mozilla-central/js/src/obj-debug-ubsan$

relaunch after quit()

vagrant@precise64:~/mozilla-central/js/src/obj-debug-ubsan$ ./js
js> var k = 1
../assembler/assembler/AssemblerBuffer.h:121:13: runtime error: store to misaligned address 0x7fffb380348b for type 'int', which requires 4 byte alignment
0x7fffb380348b: note: pointer points here
 50  48 81 ec 00 00 00 00 00  b0 34 80 b3 ff 7f 00 00  f0 39 80 b3 ff 7f 00 00  38 3a 80 b3 ff 7f 00
              ^
../assembler/assembler/AssemblerBuffer.h:128:13: runtime error: store to misaligned address 0x7fffb3803544 for type 'int64_t' (aka 'long'), which requires 8 byte alignment
0x7fffb3803544: note: pointer points here
  63 48 49 bb 6e 7f 00 00  00 00 00 00 00 00 00 00  80 35 80 b3 00 00 00 00  01 00 00 00 00 00 00 00
              ^
../assembler/assembler/X86Assembler.h:2894:9: runtime error: store to misaligned address 0x7fffb3803557 for type 'int32_t' (aka 'int'), which requires 4 byte alignment
0x7fffb3803557: note: pointer points here
 85 c0 0f 84 00  00 00 00 00 00 00 00 00  c0 36 80 b3 ff 7f 00 01  40 3a 80 b3 ff 7f 00 00  70 34 80
             ^
../assembler/assembler/X86Assembler.h:2890:16: runtime error: load of misaligned address 0x000007a1d732 for type 'int32_t' (aka 'int'), which requires 4 byte alignment
0x000007a1d732: note: pointer points here
 c4 0f  0f 84 ff ff ff ff cc 2c  0a 20 20 20 20 20 20 20  20 22 6d 69 6e 69 6d 75  6d 53 69 67 6e 69
              ^
../ion/shared/Assembler-x86-shared.h:1329:9: runtime error: load of misaligned address 0x7f6eef4a90dc for type 'uintptr_t' (aka 'unsigned long'), which requires 8 byte alignment
0x7f6eef4a90dc: note: pointer points here
  63 48 49 bb ff ff ff ff  ff ff ff ff 41 53 68 00  00 00 00 85 c0 0f 84 be  00 00 00 83 f8 01 0f 84
              ^
../ion/shared/Assembler-x86-shared.h:1330:9: runtime error: store to misaligned address 0x7f6eef4a90dc for type 'uintptr_t' (aka 'unsigned long'), which requires 8 byte alignment
0x7f6eef4a90dc: note: pointer points here
  63 48 49 bb ff ff ff ff  ff ff ff ff 41 53 68 00  00 00 00 85 c0 0f 84 be  00 00 00 83 f8 01 0f 84
              ^
../assembler/assembler/X86Assembler.h:2872:16: runtime error: load of misaligned address 0x7f6eef4a97a2 for type 'void *', which requires 8 byte alignment
0x7f6eef4a97a2: note: pointer points here
 fa ff  49 bf 71 00 00 00 00 00  00 00 41 ff e7 4c 89 cb  ff d7 41 5e 49 c1 ee 04  4c 01 f4 41 5c 49
              ^
../assembler/assembler/X86Assembler.h:2883:9: runtime error: store to misaligned address 0x7f6eef4a97a2 for type 'const void *', which requires 8 byte alignment
0x7f6eef4a97a2: note: pointer points here
 fa ff  49 bf 71 00 00 00 00 00  00 00 41 ff e7 4c 89 cb  ff d7 41 5e 49 c1 ee 04  4c 01 f4 41 5c 49
              ^
../assembler/assembler/AssemblerBuffer.h:107:13: runtime error: store to misaligned address 0x7fffb380349d for type 'short', which requires 2 byte alignment
0x7fffb380349d: note: pointer points here
 83 c4 10 c2 00 00 f2  44 0f 11 7c 24 78 f2 44  0f 11 74 24 70 f2 44 0f  11 6c 24 68 f2 44 0f 11  64
             ^
js>