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  1. Core Server
  2. SERVER-31918

capture ucontext_t in sigaction handler to increase diagnosability of core dumps

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Details

    • Icon: Task Task
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 4.1.3
    • None
    • None
    • Fully Compatible
    • Platforms 2018-02-12, Platforms 2018-08-27, Platforms 2018-09-10, Platforms 2018-09-24
    • 0

    Description

      The sigaction handler can accept ucontext_t. This information is useful to examine the exact state of the register file at crash. It would be particularly useful on aarch64 which maintains stack frames via a linked list in the fp register.

      Currently our handler ignores this parameter.

      void abruptQuitWithAddrSignal(int signalNum, siginfo_t* siginfo, void*) {
      ...
      }
      

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            billy.donahue@mongodb.com Billy Donahue
            mark.benvenuto@mongodb.com Mark Benvenuto
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              Created:
              Updated:
              Resolved: