Kernel crashes when importing tensorflow

[Napuu]

Environment data

• VS Code version: 1.60.1
• Jupyter Extension version (available under the Extensions sidebar): v2021.8.2041215044
• Python Extension version (available under the Extensions sidebar): v2021.9.1246542782
• OS (Windows | Mac | Linux distro) and version: debian 11
• Python and/or Anaconda version: 3.9.2
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): none
• Jupyter server running: Local (I think, running notebook on a vm with ssh extension)

Expected behaviour

import tensorflow would work

Actual behaviour

See screenshot below

Steps to reproduce:

Initially I got same error messages as here #7190, but unfortunately can't reproduce them anymore.

Error: Kernel is dead
Error: Kernel is dead
at g._sendKernelShellControl (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:1006195)
at g.sendShellMessage (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:1005964)
at g.requestExecute (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:1008506)
at d.requestExecute (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:37:325680)
at w.requestExecute (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:32:18027)
at w.executeCodeCell (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:301076)
at w.execute (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:300703)
at w.start (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:296367)
at async t.CellExecutionQueue.executeQueuedCells (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:311160)
at async t.CellExecutionQueue.start (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:310700)

[Napuu]

Eh, apparently this has nothing to do with jupyter. Following message is returned when trying to import tensorflow on the same machine outside jupyter:

The TensorFlow library was compiled to use SSE4.1 instructions, but these aren't available on your machine.

Error message could be better at jupyter side, but feel free to close this issue if you think otherwise.

[IanMatthewHuff]

@Napuu Thanks for the follow up. Given the message that you were seeing this is something that we won't be able to handle. I'm going to leave this issue open for discussion in our triage as I agree that the error message here is not good. Might be something we can do better here. Out of interest, if you look at the "Jupyter" tab of the output window do you see the actual SSE4.1 error message anywhere in that output?

[Napuu]

Unfortunately no. Just generic errors about kernel dying.

[DonJayamanne]

@Napuu Please could you provide the full log from teh Jupyter output panel.
I'd like to see if we detected the failure earlier on (this way we can notify the user in a better way)

[Napuu]

@DonJayamanne sure. Here is log after restarting and running cell with content import tensorflow as tf

Info 2021-09-28 12:22:44: Execute Cells request 1 1
Info 2021-09-28 12:22:44: Execute Cell 1 file:///home/debian/building-classifier/tensorflow-test.ipynb
Info 2021-09-28 12:22:45: KernelProcess output: Content-Length: 128
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "method": "log", "params": {"level": "WARNING", "msg": "Kernel has exited with exit code -4, ", "pid": 3968}}
Warn 2021-09-28 12:22:45: Python Daemon (pid: 3968): Kernel has exited with exit code -4, 
Info 2021-09-28 12:22:45: KernelProcess output: Content-Length: 86
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "method": "kernel_died", "params": {"exit_code": -4, "reason": ""}}
Error 2021-09-28 12:22:45: Kernel died [s [Error]: Kernel died with exit code -4. /home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.
  warn(

	at /home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:787065
	at /home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:462397
	at /home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:462615
	at Immediate._onImmediate (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:464180)
	at processImmediate (internal/timers.js:461:21)] {
  category: 'kerneldied',
  stdErr: `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.\n` +
    '  warn(\n' +
    `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.\n` +
    '  warn(\n',
  exitCode: -4,
  reason: `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.\n` +
    '  warn(\n' +
    `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.\n` +
    '  warn(\n'
} /home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.
  warn(

Error 2021-09-28 12:22:45: KernelProcess Exit Exit - -4, /home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.
  warn(
 [s [Error]: Kernel died with exit code -4. /home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.
  warn(

	at /home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:787065
	at /home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:462397
	at /home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:462615
	at Immediate._onImmediate (/home/debian/.vscode-server/extensions/ms-toolsai.jupyter-2021.8.2041215044/out/client/extension.js:52:464180)
	at processImmediate (internal/timers.js:461:21)] {
  category: 'kerneldied',
  stdErr: `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.\n` +
    '  warn(\n' +
    `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.\n` +
    '  warn(\n',
  exitCode: -4,
  reason: `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.\n` +
    '  warn(\n' +
    `/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.\n` +
    '  warn(\n'
}
Error 2021-09-28 12:22:45: Disposing session as kernel process died ExitCode: -4, Reason: /home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.
  warn(

Info 2021-09-28 12:22:45: Dispose Kernel process
Info 2021-09-28 12:22:45: kill daemon
Info 2021-09-28 12:22:45: KernelProcess output: Content-Length: 131
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "method": "log", "params": {"level": "INFO", "msg": "Execute rpc method kill_kernel in DS Daemon", "pid": 3968}}Content-Length: 167
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "method": "log", "params": {"level": "INFO", "msg": "Execute rpc method kill_kernel from /home/debian/miniconda3/envs/tf9/bin/python", "pid": 3968}}Content-Length: 128
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "method": "log", "params": {"level": "INFO", "msg": "Kill kernel in DS Kernel Launcher Daemon", "pid": 3968}}Content-Length: 138
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "method": "log", "params": {"level": "INFO", "msg": "Kill kernel in DS Kernel Launcher Daemon, pid 3969", "pid": 3968}}Content-Length: 43
Content-Type: application/vscode-jsonrpc; charset=utf8

{"jsonrpc": "2.0", "id": 2, "result": null}
Info 2021-09-28 12:22:45: Python Daemon (pid: 3968): Execute rpc method kill_kernel in DS Daemon
Info 2021-09-28 12:22:45: Python Daemon (pid: 3968): Execute rpc method kill_kernel from /home/debian/miniconda3/envs/tf9/bin/python
Info 2021-09-28 12:22:45: Python Daemon (pid: 3968): Kill kernel in DS Kernel Launcher Daemon
Info 2021-09-28 12:22:45: Python Daemon (pid: 3968): Kill kernel in DS Kernel Launcher Daemon, pid 3969
Info 2021-09-28 12:22:45: Dispose Kernel process
Info 2021-09-28 12:22:45: KernelProcess Exit Exit - -4 /home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/debian/.local/lib/python3.9/site-packages/traitlets/traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb' instead of 'b"e8ea1d9e-6818-4f4e-9382-2f4017fe3ddb"'.
  warn(

[DonJayamanne]

@Napuu thanks

• Please could you provide the following:
• versions of all packages install, python -m pip list
  • I'd like to replicate this at my end so we can handle such cases and provide more meaningful messages

FYI - my suggestion is to create another environment or re-isntall tensorflow to remedy this issue.