crash is a Linux kernel crash analysis utility for examining live systems and kernel dump files.
It gives administrators and kernel developers an interactive environment for inspecting the state of a running or crashed kernel, helping trace failures, inspect task state, and understand low-level kernel behaviour across a wide range of Linux platforms.
This is free and open source software.
Key Features
- Investigates live systems and Linux kernel dump files created by facilities such as kdump, kvmdump, xendump, netdump, diskdump, LKCD, and mcore.
- Provides an interactive command set for kernel debugging tasks including backtraces, process inspection, memory reads, kernel log analysis, and structure display.
- Supports many architectures including x86, x86_64, ia64, ppc, ppc64, arm, arm64, alpha, mips, mips64, loongarch64, riscv64, s390, and s390x.
- Allows relevant GDB commands to be entered directly from within the utility for deeper analysis.
- Can be extended with new built-in commands or runtime-loaded shared object modules for specialised analysis workflows.
- Offers optional build support for LZO, Snappy, and Zstandard-compressed vmcore files.
Website: github.com/crash-utility/crash
Support:
Developer: crash-utility developers
License: GNU General Public License v3.0
crash is written in C. Learn C with our recommended free books and free tutorials.
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