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  1. Core Server
  2. SERVER-15902

use signal handling stack via sigaltstack to improve behavior on stack overflow

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    • Fully Compatible
    • v4.2, v4.0
    • Dev Tools 2019-08-26, Dev Tools 2019-09-09, Dev Tools 2019-09-23, Dev Tools 2019-10-07, Dev Tools 2019-10-21, Dev Tools 2019-11-04

    Description

      In case of stack overflow mongod may not be able to produce a stack trace in the log because the signal handler has no stack space to run in, significantly hampering diagnosis. Servicability could be improved by using sigaltstack to establish a separate signal-handling stack, allowing stack traces to be produced in case of stack overflow.

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              billy.donahue@mongodb.com Billy Donahue
              bruce.lucas@mongodb.com Bruce Lucas
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                Updated:
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