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Re: [Qemu-devel] [PATCH +STABLE-0.14] exit if -drive specified is invali

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH +STABLE-0.14] exit if -drive specified is invalid instead of ignoring the "wrong" -drive
Date: Thu, 17 Mar 2011 16:41:08 +0100
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 17.03.2011 16:33, schrieb Markus Armbruster:
> Kevin Wolf <address@hidden> writes:
>> Am 17.03.2011 08:58, schrieb Michael Tokarev:
>>> Trivial patch.  I've sent it yesterday but somehow it didn't
>>> reach the list.
>>> 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 0.13 and 0.12 as well).
>>> 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.
>>> Thanks!
>>> Signed-off-by: Michael Tokarev <address@hidden>
>> Before I got a message like this and the guest started anyway:
>>     qemu-system-x86_64: -drive asdfj: Invalid parameter 'asdfj'
>> Now it exits like it should, but I don't get an error message any more.
> [...]
> Are you sure?  I still get the error message in my testing.

You're right. Instead of using git am to apply the patch, I just edited
vl.c manually and probably messed up. The patch works.

So it's only the braces.


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