Re: [Xen-devel] [PATCH] fix qemu memory leak

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Wed, 12 Aug 2009, Stefano Stabellini wrote:
> Hi all,
> the qemu block interface leaks memory every time a read or write request
> is issued, this patch fixes it.
> This is also the bug that is causing stubdomains to crash under high
> disk IO.

I forgot to say that this patch should be backported to 3.4 too.


> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> 
> ---
> 
> diff --git a/block.c b/block.c
> index 36f5eb9..6ce453c 100644
> --- a/block.c
> +++ b/block.c
> @@ -1378,6 +1378,7 @@ static void bdrv_aio_rw_vector_cb(void *opaque, int ret)
>      qemu_vfree(s->bounce);
>      s->this_aiocb->cb(s->this_aiocb->opaque, ret);
>      qemu_aio_release(s->this_aiocb);
> +    qemu_free(s);
>  }
>  
>  static BlockDriverAIOCB *bdrv_aio_rw_vector(BlockDriverState *bs,
> 
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> 

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