wasmtime / Issue #2638 Code runs fine in Wasmer (Cranelif... · git-wasmtime

Stream: git-wasmtime

Topic: wasmtime / Issue #2638 Code runs fine in Wasmer (Cranelif...

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:14):

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).

What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

Which Wasmtime version / commit hash / branch are you using?
0.22.1

If relevant, can you include some extra information about your environment?
This is a custom port of Python to WASI and some things are not expected to work. However, running -m test with Wasmer gives the expected Python error whereas running it with Wasmtime gives a memory corruption.

Debugging further, the Python debug malloc (this is a debug build) gets an invalid allocation from dlmalloc causing it to overwrite some internal dlmalloc data structures.

If there is a better way we can debug this to provide more/better info, please let us know!

python.wasm.zip

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:14):

abbec labeled Issue #2638:

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).

What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

Which Wasmtime version / commit hash / branch are you using?
0.22.1

If relevant, can you include some extra information about your environment?
This is a custom port of Python to WASI and some things are not expected to work. However, running -m test with Wasmer gives the expected Python error whereas running it with Wasmtime gives a memory corruption.

Debugging further, the Python debug malloc (this is a debug build) gets an invalid allocation from dlmalloc causing it to overwrite some internal dlmalloc data structures.

If there is a better way we can debug this to provide more/better info, please let us know!

python.wasm.zip

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:15):

abbec edited Issue #2638:

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).
python.wasm.zip

What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

Which Wasmtime version / commit hash / branch are you using?
0.22.1

If relevant, can you include some extra information about your environment?
This is a custom port of Python to WASI and some things are not expected to work. However, running -m test with Wasmer gives the expected Python error whereas running it with Wasmtime gives a memory corruption.

Debugging further, the Python debug malloc (this is a debug build) gets an invalid allocation from dlmalloc causing it to overwrite some internal dlmalloc data structures.

If there is a better way we can debug this to provide more/better info, please let us know!

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:16):

abbec edited Issue #2638:

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).
python.wasm.zip
What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

$ wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - <unknown>!_PyMem_RawRealloc
           3: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           4: 0x4556ae - <unknown>!PyMem_RawRealloc
           5: 0x453028 - <unknown>!_PyObject_Realloc
           6: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           7: 0x4582ba - <unknown>!_PyMem_DebugRealloc
           8: 0x458587 - <unknown>!PyMem_Realloc
           9: 0x42c1b5 - <unknown>!list_resize
          10: 0x42c52f - <unknown>!app1
          11: 0x42c369 - <unknown>!PyList_Append
          12: 0x4af5b1 - <unknown>!_posix_listdir
          13: 0x49cad9 - <unknown>!os_listdir_impl
          14: 0x49c9a1 - <unknown>!os_listdir
          15: 0x20f6a5 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
          16: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          17: 0x20a7d7 - <unknown>!call_function
          18: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          19: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          20: 0x2d3d85 - <unknown>!function_code_fastcall
          21: 0x2d4508 - <unknown>!_PyFunction_Vectorcall
          22: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          23: 0x20a7d7 - <unknown>!call_function
          24: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          25: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          26: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          27: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          28: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          29: 0x20a7d7 - <unknown>!call_function
          30: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          31: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          32: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          33: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          34: 0x19e67e - <unknown>!_PyObject_Vectorcall
          35: 0x19dd65 - <unknown>!method_vectorcall
          36: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          37: 0x20a7d7 - <unknown>!call_function
          38: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          39: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          40: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          41: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          42: 0x19e67e - <unknown>!_PyObject_Vectorcall
          43: 0x19dd65 - <unknown>!method_vectorcall
          44: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          45: 0x20a7d7 - <unknown>!call_function
          46: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          47: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          48: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          49: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          50: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          51: 0x20a7d7 - <unknown>!call_function
          52: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          53: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          54: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          55: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          56: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          57: 0x20a7d7 - <unknown>!call_function
          58: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          59: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          60: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          61: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          62: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          63: 0x20a7d7 - <unknown>!call_function
          64: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          65: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          66: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          67: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          68: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          69: 0x20a7d7 - <unknown>!call_function
          70: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          71: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          72: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          73: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          74: 0x2d2079 - <unknown>!PyVectorcall_Call
          75: 0x2d2407 - <unknown>!PyObject_Call
          76: 0x48a8dc - <unknown>!pymain_run_module
          77: 0x489a3e - <unknown>!pymain_run_python
          78: 0x489625 - <unknown>!Py_RunMain
          79: 0x48b4e9 - <unknown>!pymain_main
          80: 0x48b974 - <unknown>!Py_BytesMain
          81: 0x421d - <unknown>!main
          82: 0x68a7ff - <unknown>!__main_void
          83: 0x689d72 - <unknown>!__original_main
          84: 0x41b3 - <unknown>!_start
       note: run with `WASMTIME_BACKTRACE_DETAILS=1` environment variable to display more information

Which Wasmtime version / commit hash / branch are you using?
0.22.1
If relevant, can you include some extra information about your environment?
This is a custom port of Python to WASI and some things are not expected to work. However, running -m test with Wasmer gives the expected Python error whereas running it with Wasmtime gives a memory corruption.

Debugging further, the Python debug malloc (this is a debug build) gets an invalid allocation from dlmalloc causing it to overwrite some internal dlmalloc data structures.

If there is a better way we can debug this to provide more/better info, please let us know!

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:20):

abbec edited Issue #2638:

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).
python.wasm.zip
What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

<details>
<summary>Callstack</summary>

$ wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - <unknown>!_PyMem_RawRealloc
           3: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           4: 0x4556ae - <unknown>!PyMem_RawRealloc
           5: 0x453028 - <unknown>!_PyObject_Realloc
           6: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           7: 0x4582ba - <unknown>!_PyMem_DebugRealloc
           8: 0x458587 - <unknown>!PyMem_Realloc
           9: 0x42c1b5 - <unknown>!list_resize
          10: 0x42c52f - <unknown>!app1
          11: 0x42c369 - <unknown>!PyList_Append
          12: 0x4af5b1 - <unknown>!_posix_listdir
          13: 0x49cad9 - <unknown>!os_listdir_impl
          14: 0x49c9a1 - <unknown>!os_listdir
          15: 0x20f6a5 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
          16: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          17: 0x20a7d7 - <unknown>!call_function
          18: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          19: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          20: 0x2d3d85 - <unknown>!function_code_fastcall
          21: 0x2d4508 - <unknown>!_PyFunction_Vectorcall
          22: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          23: 0x20a7d7 - <unknown>!call_function
          24: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          25: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          26: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          27: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          28: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          29: 0x20a7d7 - <unknown>!call_function
          30: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          31: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          32: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          33: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          34: 0x19e67e - <unknown>!_PyObject_Vectorcall
          35: 0x19dd65 - <unknown>!method_vectorcall
          36: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          37: 0x20a7d7 - <unknown>!call_function
          38: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          39: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          40: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          41: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          42: 0x19e67e - <unknown>!_PyObject_Vectorcall
          43: 0x19dd65 - <unknown>!method_vectorcall
          44: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          45: 0x20a7d7 - <unknown>!call_function
          46: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          47: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          48: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          49: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          50: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          51: 0x20a7d7 - <unknown>!call_function
          52: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          53: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          54: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          55: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          56: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          57: 0x20a7d7 - <unknown>!call_function
          58: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          59: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          60: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          61: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          62: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          63: 0x20a7d7 - <unknown>!call_function
          64: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          65: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          66: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          67: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          68: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          69: 0x20a7d7 - <unknown>!call_function
          70: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          71: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          72: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          73: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          74: 0x2d2079 - <unknown>!PyVectorcall_Call
          75: 0x2d2407 - <unknown>!PyObject_Call
          76: 0x48a8dc - <unknown>!pymain_run_module
          77: 0x489a3e - <unknown>!pymain_run_python
          78: 0x489625 - <unknown>!Py_RunMain
          79: 0x48b4e9 - <unknown>!pymain_main
          80: 0x48b974 - <unknown>!Py_BytesMain
          81: 0x421d - <unknown>!main
          82: 0x68a7ff - <unknown>!__main_void
          83: 0x689d72 - <unknown>!__original_main
          84: 0x41b3 - <unknown>!_start
       note: run with `WASMTIME_BACKTRACE_DETAILS=1` environment variable to display more information

</details>

<details>
<summary>Detailed Callstack</summary>

$ WASMTIME_BACKTRACE_DETAILS=1 wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - _PyMem_RawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:122:12
           3: 0x457580 - _PyMem_DebugRawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2241:20
           4: 0x4556ae - PyMem_RawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:591:12
           5: 0x453028 - _PyObject_Realloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:1987:12
           6: 0x457580 - _PyMem_DebugRawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2241:20
           7: 0x4582ba - _PyMem_DebugRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2327:12
           8: 0x458587 - PyMem_Realloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:624:12
           9: 0x42c1b5 - list_resize
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:70:26
          10: 0x42c52f - app1
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:340:9
          11: 0x42c369 - PyList_Append
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:352:16
          12: 0x4af5b1 - _posix_listdir
                           at /Users/abbe/code/gbk-python/./Modules/posixmodule.c:3831:13
          13: 0x49cad9 - os_listdir_impl
                           at /Users/abbe/code/gbk-python/./Modules/posixmodule.c:3887:12
          14: 0x49c9a1 - os_listdir
                           at /Users/abbe/code/gbk-python/./Modules/clinic/posixmodule.c.h:1197:20
          15: 0x20f6a5 - cfunction_vectorcall_FASTCALL_KEYWORDS
                           at /Users/abbe/code/gbk-python/Objects/methodobject.c:437:24
          16: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          17: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          18: 0x1ffd1d - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3469:23
          19: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          20: 0x2d3d85 - function_code_fastcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:283:14
          21: 0x2d4508 - _PyFunction_Vectorcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:410:20
          22: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          23: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          24: 0x1ffe37 - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3486:23
          25: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          26: 0x1eaa0e - _PyEval_EvalCodeWithName
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4298:14
          27: 0x2d4a6c - _PyFunction_Vectorcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:435:12
          28: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          29: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          30: 0x1ffe37 - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3486:23
          31: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          32: 0x1eaa0e -
[message truncated]

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:22):

abbec edited Issue #2638:

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).
python.wasm.zip
What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

<details>
<summary>Callstack</summary>

$ wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - <unknown>!_PyMem_RawRealloc
           3: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           4: 0x4556ae - <unknown>!PyMem_RawRealloc
           5: 0x453028 - <unknown>!_PyObject_Realloc
           6: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           7: 0x4582ba - <unknown>!_PyMem_DebugRealloc
           8: 0x458587 - <unknown>!PyMem_Realloc
           9: 0x42c1b5 - <unknown>!list_resize
          10: 0x42c52f - <unknown>!app1
          11: 0x42c369 - <unknown>!PyList_Append
          12: 0x4af5b1 - <unknown>!_posix_listdir
          13: 0x49cad9 - <unknown>!os_listdir_impl
          14: 0x49c9a1 - <unknown>!os_listdir
          15: 0x20f6a5 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
          16: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          17: 0x20a7d7 - <unknown>!call_function
          18: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          19: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          20: 0x2d3d85 - <unknown>!function_code_fastcall
          21: 0x2d4508 - <unknown>!_PyFunction_Vectorcall
          22: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          23: 0x20a7d7 - <unknown>!call_function
          24: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          25: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          26: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          27: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          28: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          29: 0x20a7d7 - <unknown>!call_function
          30: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          31: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          32: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          33: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          34: 0x19e67e - <unknown>!_PyObject_Vectorcall
          35: 0x19dd65 - <unknown>!method_vectorcall
          36: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          37: 0x20a7d7 - <unknown>!call_function
          38: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          39: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          40: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          41: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          42: 0x19e67e - <unknown>!_PyObject_Vectorcall
          43: 0x19dd65 - <unknown>!method_vectorcall
          44: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          45: 0x20a7d7 - <unknown>!call_function
          46: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          47: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          48: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          49: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          50: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          51: 0x20a7d7 - <unknown>!call_function
          52: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          53: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          54: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          55: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          56: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          57: 0x20a7d7 - <unknown>!call_function
          58: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          59: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          60: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          61: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          62: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          63: 0x20a7d7 - <unknown>!call_function
          64: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          65: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          66: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          67: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          68: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          69: 0x20a7d7 - <unknown>!call_function
          70: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          71: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          72: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          73: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          74: 0x2d2079 - <unknown>!PyVectorcall_Call
          75: 0x2d2407 - <unknown>!PyObject_Call
          76: 0x48a8dc - <unknown>!pymain_run_module
          77: 0x489a3e - <unknown>!pymain_run_python
          78: 0x489625 - <unknown>!Py_RunMain
          79: 0x48b4e9 - <unknown>!pymain_main
          80: 0x48b974 - <unknown>!Py_BytesMain
          81: 0x421d - <unknown>!main
          82: 0x68a7ff - <unknown>!__main_void
          83: 0x689d72 - <unknown>!__original_main
          84: 0x41b3 - <unknown>!_start
       note: run with `WASMTIME_BACKTRACE_DETAILS=1` environment variable to display more information

</details>

<details>
<summary>Detailed Callstack</summary>

$ WASMTIME_BACKTRACE_DETAILS=1 wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - _PyMem_RawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:122:12
           3: 0x457580 - _PyMem_DebugRawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2241:20
           4: 0x4556ae - PyMem_RawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:591:12
           5: 0x453028 - _PyObject_Realloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:1987:12
           6: 0x457580 - _PyMem_DebugRawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2241:20
           7: 0x4582ba - _PyMem_DebugRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2327:12
           8: 0x458587 - PyMem_Realloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:624:12
           9: 0x42c1b5 - list_resize
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:70:26
          10: 0x42c52f - app1
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:340:9
          11: 0x42c369 - PyList_Append
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:352:16
          12: 0x4af5b1 - _posix_listdir
                           at /Users/abbe/code/gbk-python/./Modules/posixmodule.c:3831:13
          13: 0x49cad9 - os_listdir_impl
                           at /Users/abbe/code/gbk-python/./Modules/posixmodule.c:3887:12
          14: 0x49c9a1 - os_listdir
                           at /Users/abbe/code/gbk-python/./Modules/clinic/posixmodule.c.h:1197:20
          15: 0x20f6a5 - cfunction_vectorcall_FASTCALL_KEYWORDS
                           at /Users/abbe/code/gbk-python/Objects/methodobject.c:437:24
          16: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          17: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          18: 0x1ffd1d - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3469:23
          19: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          20: 0x2d3d85 - function_code_fastcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:283:14
          21: 0x2d4508 - _PyFunction_Vectorcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:410:20
          22: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          23: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          24: 0x1ffe37 - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3486:23
          25: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          26: 0x1eaa0e - _PyEval_EvalCodeWithName
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4298:14
          27: 0x2d4a6c - _PyFunction_Vectorcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:435:12
          28: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          29: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          30: 0x1ffe37 - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3486:23
          31: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          32: 0x1eaa0e -
[message truncated]

Wasmtime GitHub notifications bot (Feb 05 2021 at 11:25):

abbec edited Issue #2638:

What are the steps to reproduce the issue?
Run wasmtime run python.wasm --dir . -- -m test in a clone of cpython version 3.8 (or at least the Lib folder).
python.wasm.zip
What do you expect to happen? What does actually happen? Does it panic, and
if so, with which assertion?
I expect it to run without crashing like Wasmer using the Cranelift JIT backend does.

<details>
<summary>Callstack</summary>

$ wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - <unknown>!_PyMem_RawRealloc
           3: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           4: 0x4556ae - <unknown>!PyMem_RawRealloc
           5: 0x453028 - <unknown>!_PyObject_Realloc
           6: 0x457580 - <unknown>!_PyMem_DebugRawRealloc
           7: 0x4582ba - <unknown>!_PyMem_DebugRealloc
           8: 0x458587 - <unknown>!PyMem_Realloc
           9: 0x42c1b5 - <unknown>!list_resize
          10: 0x42c52f - <unknown>!app1
          11: 0x42c369 - <unknown>!PyList_Append
          12: 0x4af5b1 - <unknown>!_posix_listdir
          13: 0x49cad9 - <unknown>!os_listdir_impl
          14: 0x49c9a1 - <unknown>!os_listdir
          15: 0x20f6a5 - <unknown>!cfunction_vectorcall_FASTCALL_KEYWORDS
          16: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          17: 0x20a7d7 - <unknown>!call_function
          18: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          19: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          20: 0x2d3d85 - <unknown>!function_code_fastcall
          21: 0x2d4508 - <unknown>!_PyFunction_Vectorcall
          22: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          23: 0x20a7d7 - <unknown>!call_function
          24: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          25: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          26: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          27: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          28: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          29: 0x20a7d7 - <unknown>!call_function
          30: 0x1ffe37 - <unknown>!_PyEval_EvalFrameDefault
          31: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          32: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          33: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          34: 0x19e67e - <unknown>!_PyObject_Vectorcall
          35: 0x19dd65 - <unknown>!method_vectorcall
          36: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          37: 0x20a7d7 - <unknown>!call_function
          38: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          39: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          40: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          41: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          42: 0x19e67e - <unknown>!_PyObject_Vectorcall
          43: 0x19dd65 - <unknown>!method_vectorcall
          44: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          45: 0x20a7d7 - <unknown>!call_function
          46: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          47: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          48: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          49: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          50: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          51: 0x20a7d7 - <unknown>!call_function
          52: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          53: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          54: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          55: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          56: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          57: 0x20a7d7 - <unknown>!call_function
          58: 0x1ffd1d - <unknown>!_PyEval_EvalFrameDefault
          59: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          60: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          61: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          62: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          63: 0x20a7d7 - <unknown>!call_function
          64: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          65: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          66: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          67: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          68: 0x20bc53 - <unknown>!_PyObject_Vectorcall
          69: 0x20a7d7 - <unknown>!call_function
          70: 0x200057 - <unknown>!_PyEval_EvalFrameDefault
          71: 0x1eac4f - <unknown>!PyEval_EvalFrameEx
          72: 0x1eaa0e - <unknown>!_PyEval_EvalCodeWithName
          73: 0x2d4a6c - <unknown>!_PyFunction_Vectorcall
          74: 0x2d2079 - <unknown>!PyVectorcall_Call
          75: 0x2d2407 - <unknown>!PyObject_Call
          76: 0x48a8dc - <unknown>!pymain_run_module
          77: 0x489a3e - <unknown>!pymain_run_python
          78: 0x489625 - <unknown>!Py_RunMain
          79: 0x48b4e9 - <unknown>!pymain_main
          80: 0x48b974 - <unknown>!Py_BytesMain
          81: 0x421d - <unknown>!main
          82: 0x68a7ff - <unknown>!__main_void
          83: 0x689d72 - <unknown>!__original_main
          84: 0x41b3 - <unknown>!_start
       note: run with `WASMTIME_BACKTRACE_DETAILS=1` environment variable to display more information

</details>

<details>
<summary>Detailed Callstack</summary>

$ WASMTIME_BACKTRACE_DETAILS=1 wasmtime run python.wasm --dir . -- -m test
Error: failed to run main module `python.wasm`

Caused by:
    0: failed to invoke command default
    1: wasm trap: out of bounds memory access
       wasm backtrace:
           0: 0x68557c - <unknown>!dlmalloc
           1: 0x68760e - <unknown>!realloc
           2: 0x452d56 - _PyMem_RawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:122:12
           3: 0x457580 - _PyMem_DebugRawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2241:20
           4: 0x4556ae - PyMem_RawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:591:12
           5: 0x453028 - _PyObject_Realloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:1987:12
           6: 0x457580 - _PyMem_DebugRawRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2241:20
           7: 0x4582ba - _PyMem_DebugRealloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:2327:12
           8: 0x458587 - PyMem_Realloc
                           at /Users/abbe/code/gbk-python/Objects/obmalloc.c:624:12
           9: 0x42c1b5 - list_resize
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:70:26
          10: 0x42c52f - app1
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:340:9
          11: 0x42c369 - PyList_Append
                           at /Users/abbe/code/gbk-python/Objects/listobject.c:352:16
          12: 0x4af5b1 - _posix_listdir
                           at /Users/abbe/code/gbk-python/./Modules/posixmodule.c:3831:13
          13: 0x49cad9 - os_listdir_impl
                           at /Users/abbe/code/gbk-python/./Modules/posixmodule.c:3887:12
          14: 0x49c9a1 - os_listdir
                           at /Users/abbe/code/gbk-python/./Modules/clinic/posixmodule.c.h:1197:20
          15: 0x20f6a5 - cfunction_vectorcall_FASTCALL_KEYWORDS
                           at /Users/abbe/code/gbk-python/Objects/methodobject.c:437:24
          16: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          17: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          18: 0x1ffd1d - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3469:23
          19: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          20: 0x2d3d85 - function_code_fastcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:283:14
          21: 0x2d4508 - _PyFunction_Vectorcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:410:20
          22: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          23: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          24: 0x1ffe37 - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3486:23
          25: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          26: 0x1eaa0e - _PyEval_EvalCodeWithName
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4298:14
          27: 0x2d4a6c - _PyFunction_Vectorcall
                           at /Users/abbe/code/gbk-python/Objects/call.c:435:12
          28: 0x20bc53 - _PyObject_Vectorcall
                           at /Users/abbe/code/gbk-python/./Include/cpython/abstract.h:127:11
          29: 0x20a7d7 - call_function
                           at /Users/abbe/code/gbk-python/Python/ceval.c:4963:13
          30: 0x1ffe37 - _PyEval_EvalFrameDefault
                           at /Users/abbe/code/gbk-python/Python/ceval.c:3486:23
          31: 0x1eac4f - PyEval_EvalFrameEx
                           at /Users/abbe/code/gbk-python/Python/ceval.c:741:12
          32: 0x1eaa0e -
[message truncated]

Last updated: Dec 23 2024 at 12:05 UTC