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Commite7e1748

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Fix: remove memory limit on fuzzers (#5763)
Fixes#5566Simply takes off the memory limit on the internal `libfuzzer-sys` whichis set to 2GB of memory. The fuzzer machines run on[m8g.large](https://github.com/vortex-data/vortex/blob/develop/.github/workflows/fuzz.yml?plain=1#L21)which have [8GB of RAM](https://aws.amazon.com/ec2/instance-types/m8g/).Running the fuzzer now:https://github.com/vortex-data/vortex/actions/runs/20285945548Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
1 parent8eb7e58 commite7e1748

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‎.github/workflows/fuzz.yml‎

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@@ -56,7 +56,7 @@ jobs:
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-name:Run fuzzing target
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id:fuzz
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run:|
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RUSTFLAGS="--cfg vortex_nightly" RUST_BACKTRACE=1 cargo +nightly fuzz run --release --debug-assertions file_io -- -max_total_time=7200 2>&1 | tee fuzz_output.log
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RUSTFLAGS="--cfg vortex_nightly" RUST_BACKTRACE=1 cargo +nightly fuzz run --release --debug-assertions file_io -- -max_total_time=7200-rss_limit_mb=02>&1 | tee fuzz_output.log
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continue-on-error:true
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-name:Check for crashes
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id:check
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-name:Run fuzzing target
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id:fuzz
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run:|
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RUSTFLAGS="--cfg vortex_nightly" RUST_BACKTRACE=1 cargo +nightly fuzz run --release --debug-assertions array_ops -- -max_total_time=7200 2>&1 | tee fuzz_output.log
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RUSTFLAGS="--cfg vortex_nightly" RUST_BACKTRACE=1 cargo +nightly fuzz run --release --debug-assertions array_ops -- -max_total_time=7200-rss_limit_mb=02>&1 | tee fuzz_output.log
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continue-on-error:true
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-name:Check for crashes
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id:check

‎.github/workflows/fuzzer-fix-automation.yml‎

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echo "Attempting to reproduce crash with fuzzer (debug mode)..."
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# Run fuzzer with crash file (debug mode, no sanitizer, full backtrace)
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RUSTFLAGS="--cfg vortex_nightly" RUST_BACKTRACE=full timeout 30s cargo +nightly fuzz run --dev --sanitizer=none "${{ steps.extract.outputs.target }}" "${{ steps.download.outputs.crash_file_path }}" -- -runs=1 2>&1 | tee crash_reproduction.log
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RUSTFLAGS="--cfg vortex_nightly" RUST_BACKTRACE=full timeout 30s cargo +nightly fuzz run --dev --sanitizer=none "${{ steps.extract.outputs.target }}" "${{ steps.download.outputs.crash_file_path }}" -- -runs=1-rss_limit_mb=02>&1 | tee crash_reproduction.log
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FUZZ_EXIT_CODE=${PIPESTATUS[0]}
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@@ -216,7 +216,7 @@ jobs:
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I ran:
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\`\`\`bash
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cargo +nightly fuzz run --sanitizer=none ${{ steps.extract.outputs.target }} ${{ steps.download.outputs.crash_file_path }} -- -runs=1
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cargo +nightly fuzz run --sanitizer=none ${{ steps.extract.outputs.target }} ${{ steps.download.outputs.crash_file_path }} -- -runs=1 -rss_limit_mb=0
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\`\`\`
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The fuzzer exited with code 0 (success).
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- This ensures your work is visible and reviewable even if you hit the turn limit
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- Keep fixes minimal - only fix the specific bug
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- Follow CLAUDE.md code style guidelines
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- **Use `--dev` flag** for faster builds: `cargo +nightly fuzz run --dev --sanitizer=none`
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- **Use `--dev` flag** for faster builds: `cargo +nightly fuzz run --dev --sanitizer=none <target> <crash_file> -- -rss_limit_mb=0`
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## Fixability Guidelines
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‎.github/workflows/report-fuzz-crash.yml‎

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### Reproduction
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```bash
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cargo +nightly fuzz run --sanitizer=none $FUZZ_TARGET $FUZZ_TARGET/$CRASH_FILE
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cargo +nightly fuzz run -D --sanitizer=none $FUZZ_TARGET $FUZZ_TARGET/$CRASH_FILE -- -rss_limit_mb=0
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```
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---
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2. Reproduce locally:
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```bash
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# The artifact contains $FUZZ_TARGET/$CRASH_FILE
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cargo +nightly fuzz run --sanitizer=none $FUZZ_TARGET $FUZZ_TARGET/$CRASH_FILE
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cargo +nightly fuzz run -D --sanitizer=none $FUZZ_TARGET $FUZZ_TARGET/$CRASH_FILE -- -rss_limit_mb=0
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```
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3. Get full backtrace:
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```bash
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RUST_BACKTRACE=full cargo +nightly fuzz run --sanitizer=none $FUZZ_TARGET $FUZZ_TARGET/$CRASH_FILE
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RUST_BACKTRACE=full cargo +nightly fuzz run -D --sanitizer=none $FUZZ_TARGET $FUZZ_TARGET/$CRASH_FILE -- -rss_limit_mb=0
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```
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---

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