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Stack overflow in KernelHost.run() #778

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2 of 4 tasks
ddinu opened this issue Sep 13, 2019 · 0 comments 路 Fixed by #780
Closed
2 of 4 tasks

Stack overflow in KernelHost.run() #778

ddinu opened this issue Sep 13, 2019 · 0 comments 路 Fixed by #780
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bug This issue is a bug. needs-triage This issue or PR still needs to be triaged.

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@ddinu
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ddinu commented Sep 13, 2019

馃悰 Bug Report

Affected Languages

  • TypeScript or Javascript
  • Python
  • Java
  • .NET (C#, F#, ...)

General Information

  • JSII Version: master
  • Platform: OSX, Amazon Linux

What is the problem?

I am getting a stack overflow error with large Java-based CDK CloudFormation stacks. This seems to be happening because the KernelHost.run() and KernelHost.processRequest() functions are mutually-recursive through the next callback.

RangeError: Maximum call stack size exceeded
    at KernelHost.processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:6063:18)
    at KernelHost.run (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:5970:14)
    at processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:5970:45)
    at KernelHost.processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:6066:16)
    at KernelHost.run (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:5970:14)
    at processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:5970:45)
    at KernelHost.processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:6066:16)
    at KernelHost.run (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:5970:14)
    at processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:5970:45)
    at KernelHost.processRequest (/tmp/jsii-java-runtime4513439031470941034/jsii-runtime.js:6066:16)
    at software.amazon.jsii.JsiiRuntime.processErrorResponse(JsiiRuntime.java:112)
    at software.amazon.jsii.JsiiRuntime.requestResponse(JsiiRuntime.java:84)
    at software.amazon.jsii.JsiiClient.callMethod(JsiiClient.java:185)
    at software.amazon.jsii.JsiiObject.jsiiCall(JsiiObject.java:57)
    [our stack...]

I will submit a PR with a test and fix shortly.
@ddinu ddinu added bug This issue is a bug. needs-triage This issue or PR still needs to be triaged. labels Sep 13, 2019
ddinu pushed a commit to ddinu/jsii that referenced this issue Sep 13, 2019
@ddinu-amzn
Fix stack overflow in KernelHost.run()
b4fe423 
This commit fixes issue aws#778.
@ddinu ddinu mentioned this issue Sep 13, 2019
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ddinu pushed a commit to ddinu/jsii that referenced this issue Sep 13, 2019
@ddinu-amzn
fix: stack overflow in KernelHost.run()
250c9b6 
This commit fixes issue aws#778.
@ddinu ddinu mentioned this issue Sep 13, 2019
Merged
ddinu pushed a commit to ddinu/jsii that referenced this issue Sep 14, 2019
@ddinu-amzn @ddinu
fix: stack overflow in KernelHost.run()
bcc75b2 
This commit fixes issue aws#778.
RomainMuller pushed a commit that referenced this issue Sep 16, 2019
@ddinu @RomainMuller
fix(kernel): stack overflow in KernelHost.run() (#780)
41a8c2f 
Fixes #778. This PR eliminates the mutual recursion between `KernelHost.run()` and `KernelHost.processRequest()` by scheduling the recursive `KernelHost.run()` call to run on the next iteration of the event loop.

The code change has been tested as follows:

- by running the stress-test script with and without the change to confirm that the crash occurs without the change and does not occur with the change;
- by running the unit tests to confirm that behavior is consistent;
- by synthesizing our internal CDK stack and confirming that the crash does not occur and that resources are generated correctly.
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fix: stack overflow in KernelHost.run() ddinu/jsii
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