host
f809014bef
feat(chv): 阶段 1 数据盘与 tenant 标记同 overlay 解耦(copy 也供)
真机根因(2026-11-07,CHV v54 三变体实证):vm.boot 对任何
带 backing file 的 qcow2 都报 Maximum disk nesting depth
exceeded——overlay-only 与 overlay-rawbase 均 500,base 直接
启动(reuse)22.5 秒成功,数据盘与压缩均已排除。overlay 在
本 VMM 上不可用,持久 VM 须能在 copy 模式下跑。
- _provision_task_disk:copy 与 overlay 都供数据盘并写
tenant.json(只有 reuse 不供不写);_provision_data_disk_path
同理(reuse 才返回 None)。
- _cleanup_vm_task_disk:保护(持久登记/登记快照)不再只限
overlay 模式;无登记无快照的 copy 盘仍按旧语义删除。
- provision_data_disk:数据盘改 raw 稀疏盘(os.truncate,
零外部依赖)——copy 模式本来就不需要 qemu-img,数据盘
绝不能悄悄加上这个依赖;CHV 按后缀认 Raw。
- 测试:新增 copy 供数据盘+tenant 与 copy 持久盘 stop 保护;
VmConfig 三盘断言(任务+seed+数据)更新 arch95/fix 两处
旧“恰好两盘”契约与本轨 qcow2 类型断言。
回归:test_chv_*.py、test_cloud_hypervisor.py 42、test_chv_v3_fixes
38 全过(全量 cloud/tests 在跑)。
不推、不合、不部署;只本地分支。
2026-11-08 09:45:00 +00:00
..
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