kernel: __alloc_pages: 0-order

[chunbo]

I have a redhat linux v7.1, and I find the following message at /var/log/messages

Apr 16 03:05:11 wvd1 kernel: failed.
Apr 16 03:05:11 wvd1 kernel: __alloc_pages: 0-order allocation failed.
Apr 16 03:05:15 wvd1 last message repeated 741 times
Apr 16 03:05:15 wvd1 kernel: failed.
Apr 16 03:05:15 wvd1 kernel: __alloc_pages: 0-order allocation failed.

This server has several crashes this year. Do the crash have something to do with this kernel failure?

Thanks

 

[kd4pba]

Not sure but kind of sounds like a memory issue to me.

Are you above 2Gigs in RAM?

 

[chunbo]

Yes, it has 2.3G memory. Linux 7.1 cannot handle memory over 2G?

 

[kd4pba]

No 7.1 should support up to 64Gigs of Physical Ram. There was once a problem with memory above a specific point, I think 2gigs. Was this an upgrade from 7.0 or 6.2?
It really looks like a memory allocation issue of some type but This is an area I am not very keen on so maybe someone else can explain it better.