On 11/25/2021 9:53 PM, Hanna Reitz wrote:
> Hi,
>
> Peng Liang has reported an issue regarding migration of raw images here:
> https://lists.nongnu.org/archive/html/qemu-block/2021-11/msg00673.html
>
> It turns out that after migrating, all permissions are shared when they
> weren’t before. The
On 11/25/2021 9:53 PM, Hanna Reitz wrote:
> After migration, the permissions the guest device wants to impose on its
> BlockBackend are stored in blk->perm and blk->shared_perm. In
> blk_root_activate(), we take our permissions, but keep all shared
> permissions open by calling
Hi folks,
When we test migration with raw-format disk, we found that the QEMU
process in the dst will lose the write lock after migration. However,
the QEMU process in the dst will still hold the write lock for
qcow2-format disk.
After reading some block layer's code, I found that the first
