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Re: [Qemu-devel] [Qemu-stable] Data corruption in Qemu 2.7.1

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [Qemu-stable] Data corruption in Qemu 2.7.1
Date: Tue, 24 Jan 2017 10:35:19 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

On 19/01/2017 12:59, Fabian Grünbichler wrote:
> > I'm not sure how to fix it, unfortunately. :(
> so this means either use non-transparent huge pages when using
> scsi-block (haven't verified but should work?), or use aggressive THP
> settings and/or always leave enough memory reserves? :-/ this is very
> unfortunate IMHO (and probably also not a very realistic usage
> scenario?)

Yes, I agree.  Unfortunately there is no API in Linux that lets you
verify how many segments an iov is split into.


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