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[Qemu-devel] Re: [PATCH] exit if -drive specified is invalid instead of

From: Kevin Wolf
Subject: [Qemu-devel] Re: [PATCH] exit if -drive specified is invalid instead of ignoring the "wrong" -drive
Date: Thu, 31 Mar 2011 12:47:24 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10

Am 30.03.2011 14:31, schrieb Michael Tokarev:
> This fixes the problem when qemu continues even if -drive specification
> is somehow invalid, resulting in a mess.  Applicable for both current
> master and for stable-0.14 (and the same issue exist 0.13 and 0.12 too).
> The prob can actually be seriuos: when you start guest with two drives
> and make an error in the specification of one of them, and the guest
> has something like a raid array on the two drives, guest may start failing
> that array or kick "missing" drives which may result in a mess - this is
> what actually happened to me, I did't want a resync at all, and a resync
> resulted in re-writing (and allocating) a 4TB virtual drive I used for
> testing, which in turn resulted in my filesystem filling up and whole
> thing failing badly.  Yes it was just testing VM, I experimented with
> larger raid arrays, but the end result was quite, well, unexpected.
> Signed-off-by: Michael Tokarev <address@hidden>

Thanks, applied to the block branch. CCed Justin for stable.


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