红帽全球峰会15.8. Files produced by kdump after system crash
After your system crashes, the kdump service captures the kernel memory in a dump file (vmcore) and it also generates additional diagnostic files to aid in troubleshooting and postmortem analysis.
Files produced by kdump:
-
vmcore- main kernel memory dump file containing system memory at the time of the crash. It includes data as per the configuration of thecore_collectorprogram specified inkdumpconfiguration. By default the kernel data structures, process information, stack traces, and other diagnostic information. -
vmcore-dmesg.txt- contents of the kernel ring buffer log (dmesg) from the primary kernel that panicked. -
kexec-dmesg.log- has kernel and system log messages from the execution of the secondarykexeckernel that collects thevmcoredata.
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