topic Re: Kernel core file not generate if the disk space is less than RAM size in General Topics

Kernel core file not generate if the disk space is less than RAM size

Chinmaya_Naik — Wed, 19 May 2021 16:10:37 GMT

Hi Checkmate !!!

I come across to know that If device does not have sufficient disk space to create kernel core files in case of a kernel crash the RAM memory is dumped to the /var/log partition. If there is no sufficient disk space available a core dump will not be created.

So minimal free disk space in /var/log partition should be equal or greater than the RAM memory size

Example : Device Total RAM: 128768MB Available disk space in /var/log: 70354 MB so in this kernel crash file will not generate

So I just to know that what about kernel crash the RAM memory ?

And what about on other case if the coredump size is below 1 GB or like below RAM memory size ?

Pls suggest

@Chinmaya_Naik

Re: Kernel core file not generate if the disk space is less than RAM size

_Val_ — Thu, 20 May 2021 06:29:10 GMT

kernel core dump only dumps kernel memory, AFAIK, and not all RAM. Do you have any error message for the case you describe? If your kernel dump enabled?

Re: Kernel core file not generate if the disk space is less than RAM size

Chinmaya_Naik — Mon, 31 May 2021 08:48:28 GMT

@_Val_ Thanks for the update.

One of our customer having Check pro service where we see this warning mentions on the pro report.

I need more information to confirm on this so accordingly we will mention the ratio.

@Chinmaya_Naik

Re: Kernel core file not generate if the disk space is less than RAM size

_Val_ — Mon, 31 May 2021 09:48:19 GMT

In this case, please open a TAC request and follow guidance.