Dmesg not being dumped

Nikolay Borisov kernel at
Fri Aug 21 01:09:58 PDT 2015

On 08/20/2015 04:04 PM, Dave Anderson wrote:
> The vmcoreinfo data strings were initially located in an ELF note in /proc/vmcore.
> When makedumpfile -c was run on /proc/vmcore, it copied those ELF notes into the
> compressed kdump header, and you have dumped them above.
> So it seems to be an issue with vmcore-dmesg.  If you change the core_collector
> variable to "cp" or "scp", it will copy /proc/vmcore unmodified to the target
> location.  Then you can run vmcore-dmesg on that file to debug it.

This is very, very odd. Obtaining a raw vmcore with cp and then running
vmcore-dmesg does show the dmesg log. But at the same time, the
vmcore-dmesg.txt file is empty and its name is

> Dave

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