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Re: [Qemu-devel] Kernel Panic on Yum update
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] Kernel Panic on Yum update |
Date: |
Fri, 15 May 2015 10:10:49 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 15/05/2015 09:37, Gerhard Wiesinger wrote:
>>
>
> Yes, yum takes memory. But there is ~2.2 GB virt memory available. That
> should be enough. Therefore I think it is a kernel problem. As in
> previous crashes on the mailing list there is a lot of swap available
> (2GB) which isn't touched in ANY way.
>
> Under normal conditions without yum:
> free
> total used free shared buff/cache
> available
> Mem: 243036 132540 12716 15520 97780 74964
> Swap: 2064380 0 2064380
Not all memory is the same. Some memory cannot be swapped, and some
memory can be swapped to disk without a swap file (e.g. executables).
Failing an order 0 allocation is weird indeed, but this is a GFP_ATOMIC
allocation so it's a bit less weird.
Paolo