git maintenance ai_generated true

Auto packing the repository in background for optimum performance. error: The last gc run reported the following. Please correct the root cause and remove .git/gc.log

ID: git/gc-auto-failed

Also available as: JSON · Markdown
88%Fix Rate
90%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
2 active — — —

Root Cause

Automatic garbage collection failed and git wrote the error to .git/gc.log. Subsequent operations repeatedly print this warning until the gc.log is removed. Root cause is typically insufficient memory, disk space, or conflicting processes.

generic

Workarounds

  1. 90% success Fix the root cause, remove gc.log, then run gc manually 
    Read .git/gc.log to identify the root cause. Free disk space or memory as needed. Remove .git/gc.log, then run git gc --auto or git gc manually to verify it completes.
  2. 85% success Run git gc with reduced memory settings 
    rm .git/gc.log && git -c pack.threads=1 -c pack.windowMemory=100m gc. This limits memory usage so gc can complete on constrained systems.

Dead Ends

Common approaches that don't work:

  1. Simply deleting .git/gc.log without fixing the root cause 70% fail

    The next auto-gc attempt will fail again and recreate gc.log with the same error, leading to an endless cycle of warnings

  2. Disabling auto-gc entirely with git config gc.auto 0 65% fail

    This prevents the error message but the repository grows unbounded with loose objects, degrading performance over time

Error Chain

Leads to:
Preceded by:
Frequently confused with: