4ef0171bc0
This commit introduces a comprehensive tracing mechanism for allocation failures within the Adaptive Cache Engine (ACE) component. This feature allows for precise identification of the root cause for Out-Of-Memory (OOM) issues related to ACE allocations. Key changes include: - **ACE Tracing Implementation**: - Added environment variable to enable/disable detailed logging of allocation failures. - Instrumented , , and to distinguish between "Threshold" (size class mismatch), "Exhaustion" (pool depletion), and "MapFail" (OS memory allocation failure). - **Build System Fixes**: - Corrected to ensure is properly linked into , resolving an error. - **LD_PRELOAD Wrapper Adjustments**: - Investigated and understood the wrapper's behavior under , particularly its interaction with and checks. - Enabled debugging flags for environment to prevent unintended fallbacks to 's for non-tiny allocations, allowing comprehensive testing of the allocator. - **Debugging & Verification**: - Introduced temporary verbose logging to pinpoint execution flow issues within interception and routing. These temporary logs have been removed. - Created to facilitate testing of the tracing features. This feature will significantly aid in diagnosing and resolving allocation-related OOM issues in by providing clear insights into the failure pathways.
17 lines
483 B
Bash
Executable File
17 lines
483 B
Bash
Executable File
#!/bin/bash
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export HAKMEM_DEBUG_LEVEL=5
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for i in $(seq 1 50); do
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seed=$RANDOM
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echo "=== Run $i seed=$seed ==="
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./bench_random_mixed_hakmem 100000 512 $seed 2>&1 | tail -100 > /tmp/debug_$i.log
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exitcode=$?
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if [ $exitcode -eq 139 ]; then
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echo "CRASH on run $i seed=$seed!"
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cp /tmp/debug_$i.log crash_debug_output.log
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echo "Last 50 lines before crash:"
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tail -50 /tmp/debug_$i.log
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exit 0
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fi
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done
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echo "No crash in 50 runs"
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