Dmesg not being dumped

Minfei Huang mhuang at
Wed Aug 19 06:13:02 PDT 2015

Hi. Nikolay.

Does kexec-tools work for original rhel kernel, like 3.10.0-xxx. Also do
you specify the config to build the kernel? It is appropriate if you can
paste the config related to the kexec.


On 08/19/15 at 09:21am, Nikolay Borisov wrote:
> Hello,
> I've recently noticed that when creating crashdumps the dmesg is not
> being saved. The error reported is this: "Missing the struct log size
> export". I've tested with both kernel 4.1.1 and 3.12.28. My version of
> kexec tools is : kexec-tools 2.0.9 released 04 June 2015. The kernel has
> been compiled with debugging info so the respective symbol should be
> exported but apparently it is not. Any ideas how to debug that?
> [Please CC me as I'm not subscribed to the mailing list.]
> Regards,
> Nikolay
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