fix vmm allocator core dump

[zhangting2020]

PR Category

Performance Optimization

PR Types

Bug fixes

Description

fix vmm allocator core dump

[paddle-bot]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@5139e04). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...n/virtual_memory_auto_growth_best_fit_allocator.cc	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             develop   #77196   +/-   ##
==========================================
  Coverage           ?   90.90%           
==========================================
  Files              ?        1           
  Lines              ?       11           
  Branches           ?        0           
==========================================
  Hits               ?       10           
  Misses             ?        1           
  Partials           ?        0           

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