816077299c
If there is a pending DMA operation during ide_bus_reset(), the fact that the IDEstate is already reset before the operation is canceled can be problematic. In particular, ide_dma_cb() might be called and then use the reset IDEstate which contains the signature after the reset. When used to construct the IO operation this leads to ide_get_sector() returning 0 and nsector being 1. This is particularly bad, because a write command will thus destroy the first sector which often contains a partition table or similar. Upstream discussion: https://lists.nongnu.org/archive/html/qemu-devel/2023-08/msg04239.html Signed-off-by: Fiona Ebner <f.ebner@proxmox.com> |
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