Centos version in new project
Hello,
I'm starting a new project in which I will also have to recompile the centos kernel. Can you please advise: Should I use the newest version: 8.0.1905 or an older one ? Thank you, Zvika |
Quote:
If this is related to your other thread about CMA, it doesn't matter; again, if it's not enabled in whatever kernel you want to use by default, you'll have to recompile it with that enabled. And you *STILL* won't be able to use it in user space. |
Hello,
The application should read data RAM and then process it. The source of this data is a PCIe card. The card intiates DMA to big contiguous physical memory areas (~256MB) allocated in the kernel. My question does not regard to the CMA issue. It's a general question on the preferred Centos verison I should use. Thank you, Zvika |
Quote:
https://www.linuxquestions.org/quest...-a-4175668757/ ..links to this: https://forums.centos.org/viewtopic.php?t=71727 ...where you are saying you're using PCIe hardware, just like here. And just like your other thread, you're asking here for contiguous memory in CentOS using DMA. So what, exactly, is different??? AGAIN, as you were told, unless you enable this feature in the kernel (or have it enabled by default), **IT WILL NOT WORK**, period. And again, this is not available in user space. You are, AGAIN, giving no real details about your 'new project', so we cannot tell you what is 'preferred', past the very general advice to always use the newest version. |
Quote:
In most cases, it doesn't make sense to use an earlier version when starting a new project. |
Hello TBOne, scasey,
Thank you very much. Best regards, Zvika |
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