Am 14.11.2011 18:55, schrieb Kevin Wolf:
> Unlocking during COW allows for more parallelism. One change it requires is
> that buffers are dynamically allocated instead of just using a per-image
> buffer.
> 
> While touching the code, drop the synchronous qcow2_read() function and 
> replace
> it by a bdrv_read() call.
> 
> Signed-off-by: Kevin Wolf <kw...@redhat.com>

This seems to break an IDE guest for me. I don't quite understand why
yet, but maybe someone has an idea.

hw/ide/pci.c:313: bmdma_cmd_writeb: Assertion `bm->bus->dma->aiocb ==
((void *)0)' failed.

Kevin

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