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Re: [Qemu-block] [PATCH for-2.12] qemu-iotests: Fix locking issue in 102

From: Max Reitz
Subject: Re: [Qemu-block] [PATCH for-2.12] qemu-iotests: Fix locking issue in 102
Date: Wed, 17 Jan 2018 14:29:45 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2

On 2017-11-29 19:51, Max Reitz wrote:
> 102 truncates a qcow2 file (the raw file) on purpose while a VM is
> running.  However, image locking will usually prevent exactly this.
> The fact that most people have not noticed until now (I suppose you may
> have seen sporadic failures, but not taken them too seriously, like me)
> further shows that this truncation is actually not really done
> concurrently, but that the VM is still starting up by this point and has
> not yet opened the image.  Remedy this by waiting for the monitor shell
> to appear before the qemu-img invocation so we know the VM is up.
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  tests/qemu-iotests/102     | 7 ++++++-
>  tests/qemu-iotests/102.out | 3 ++-
>  2 files changed, 8 insertions(+), 2 deletions(-)

Applied to my block branch.


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