Date: Wed, 12 Aug 2009 17:09:15 +0100

From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

To: xen-devel@lists.xensource.com

Message-ID: <alpine.DEB.2.00.0908121705330.10516@kaball-desktop>

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

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.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

---

diff --git a/block.c b/block.c

index 36f5eb9..6ce453c 100644

--- a/tools/ioemu-qemu-xen/block.c

+++ b/tools/ioemu-qemu-xen/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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