● Covered by 1 source · 1 reportLow impact1 negative
Ripgrep musl binaries segfault during large, concurrent searches
Key points
- Ripgrep musl binaries (v15.2.0) segfault.
- Crashes occur during large, concurrent searches.
- Issue traced to musl's mallocng during opendir call.
- Reproducible on OpenSUSE Tumbleweed Linux.
Ripgrep Musl Binaries Encounter Segfaults
Users of Ripgrep version 15.2.0, specifically the x86_64-unknown-linux-musl binaries, have reported occasional segmentation faults. These crashes manifest during searches of very large file trees conducted with a high degree of concurrency.
Technical Details of the Crash
The segfault is linked to an integrity assertion failure within musl's mallocng, which is the memory allocator used by musl libc. The specific error occurs during a calloc call that originates from the opendir function, indicating a memory management issue when opening directories in large search operations.
Reproduction Steps and Environment
The bug has been reproduced on OpenSUSE Tumbleweed Linux x86_64. Reproduction requires a sufficiently large search tree, approximately 20GiB across 1.8 million files, which can be generated using a provided Python script. Running Ripgrep in a continuous loop searching for a non-existent string on a 24-core system typically triggers the SIGSEGV within about a minute, especially when the search tree fits within the kernel's block cache.
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Primary sources
GitHub cmc_internal/api GitHub github/collect GitHub _view_fragments/issues GitHub BurntSushi/ripgrep GitHub user-attachments/files GitHub 3494/ripgrepReporting from
Ripgrep's x86_64-unknown-linux-musl binaries occasionally crash with a segmentation fault when performing very large searches with high concurrency. The issue occurs within musl's mallocng during a calloc operation made from opendir, indicating a memory integrity problem.