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From: Paolo Bonzini <pbonzini@redhat.com>
To: Gerhard Wiesinger <lists@wiesinger.com>,
	qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] Kernel Panic on Yum update
Date: Fri, 15 May 2015 10:10:49 +0200	[thread overview]
Message-ID: <5555AA09.3090709@redhat.com> (raw)
In-Reply-To: <5555A24C.9070907@wiesinger.com>



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

  reply	other threads:[~2015-05-15  8:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-15  6:34 [Qemu-devel] Kernel Panic on Yum update Gerhard Wiesinger
2015-05-15  6:51 ` Paolo Bonzini
2015-05-15  7:37   ` Gerhard Wiesinger
2015-05-15  8:10     ` Paolo Bonzini [this message]
2015-05-15 14:31       ` Gerhard Wiesinger

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