[GitHub] [mynewt-core] ccollins476ad opened a new pull request #1723: kernel/os: Optional sanity check for low mbufs

[GitBox <gi...@apache.org>]

ccollins476ad opened a new pull request #1723: kernel/os: Optional sanity check for low mbufs
URL: https://github.com/apache/mynewt-core/pull/1723
 
 
   This commit adds an additional sanity check.  If an msys pool has a low buffer count for too long, a crash is triggered.  This check is disabled by default.  It can be configured using the following syscfg settings:
   
   ```
   MSYS_1_SANITY_MIN_COUNT:
       description: >
           Trigger a crash if the count of available mbufs in the 1st msys
           pool falls below this minimum for too long.  Set to 0 to disable.
       value: 0
   MSYS_2_SANITY_MIN_COUNT:
       description: >
           Trigger a crash if the count of available mbufs in the 2st msys
           pool falls below this minimum for too long.  Set to 0 to disable.
       value: 0
   MSYS_SANITY_TIMEOUT:
       description: >
           The maximum duration that any msys pool can be low on mbufs before
           a crash is triggered (milliseconds).
       value: 60000
   ```
   
   

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