翻了当时的调试信息给AI看，AI说指令应该被拒绝了
所以为啥现在硬盘的行为出现了变化Orz..
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以下是eb70dab98d0版本运行时输出的调试信息，请解读这里面的ATA指令的输出结果
```root@pve:~/scripts# ./hdstat-musl -v /dev/sda
Trying SG_IO interface...
CDB for ATA_OP_CHECKPOWERMODE1 (SG_IO): 85 0e 0e 00 00 00 00 00 00 00 00 00 00 a0 e5 00
ATA_TF for ATA_OP_CHECKPOWERMODE1: command=0xe5, dev=0xa0, nsect=0x00, feat=0x00
SG_IO (ATA_OP_CHECKPOWERMODE1) command sent. SCSI status: 0x2, host status: 0x0, driver status: 0x8. Raw status from sb[13]: 0x00
SG_IO: sb[]: 70 00 05 00 00 00 00 12 00 00 00 00 24 00 00 c0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Trying SG_IO (ATA_OP_CHECKPOWERMODE2)...
CDB for ATA_OP_CHECKPOWERMODE2 (SG_IO): 85 0e 0e 00 00 00 00 00 00 00 00 00 00 a0 98 00
ATA_TF for ATA_OP_CHECKPOWERMODE2: command=0x98, dev=0xa0, nsect=0x00, feat=0x00
SG_IO (ATA_OP_CHECKPOWERMODE2) command sent. SCSI status: 0x2, host status: 0x0, driver status: 0x8. Raw status from sb[13]: 0x00
Trying traditional HDIO_DRIVE_CMD IOCTL...
Args for ATA_OP_CHECKPOWERMODE1 (HDIO_DRIVE_CMD): e5 00 00 00
HDIO_DRIVE_CMD (ATA_OP_CHECKPOWERMODE1) successful. Raw status: 0xff
active/idle
root@pve:~/scripts#
```
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根据提供的调试输出，我来解读其中ATA指令的输出结果：
1. **SG_IO接口尝试 - ATA_OP_CHECKPOWERMODE1 (0xE5)**
- CDB: `85 0e 0e 00 00 00 00 00 00 00 00 00 00 a0 e5 00`
- ATA任务文件: `command=0xe5, dev=0xa0, nsect=0x00, feat=0x00`
- 结果:
- SCSI状态: `0x2` (CHECK CONDITION)
- 驱动状态: `0x8` (DRIVER_SENSE)
- Sense Buffer: `70 00 05 00 00 00 00 12 00 00 00 00 24 00 00 c0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00`
**解读**:
- CDB中的`cdb[1]=0x0e`和`cdb[2]=0x0e`与之前分析一致
- Sense Buffer分析:
- Byte 0: `0x70` - 表示固定格式的sense数据
- Byte 2: `0x05` - SENSE KEY = 0x5 (ILLEGAL REQUEST)
- Byte 12: `0x24` - ASC (Additional Sense Code) = 0x24 (INVALID FIELD IN CDB)
- Byte 13: `0x00` - ASCQ = 0x00
- **结论**: SCSI层拒绝了CDB命令，原因是"CDB中的无效字段"(INVALID FIELD IN CDB)，这与之前分析的`cdb[1]=0x0e`值不符合SG_IO协议定义一致。
2. **SG_IO接口尝试 - ATA_OP_CHECKPOWERMODE2 (0x98)**
- CDB: `85 0e 0e 00 00 00 00 00 00 00 00 00 00 a0 98 00`
- ATA任务文件: `command=0x98, dev=0xa0, nsect=0x00, feat=0x00`
- 结果:
- SCSI状态: `0x2` (CHECK CONDITION)
- 驱动状态: `0x8` (DRIVER_SENSE)
- 程序没有输出完整的Sense Buffer
**解读**:
- 相同的CDB结构问题导致SCSI层再次拒绝命令
- 虽然没有完整Sense Buffer，但错误状态与第一个命令相同，可以推断也是"INVALID FIELD IN CDB"错误
3. **传统IDE IOCTL (HDIO_DRIVE_CMD)**
- 参数: `e5 00 00 00`
- 结果: `Raw status: 0xff`
- 最终输出: `active/idle`
**解读**:
- `HDIO_DRIVE_CMD`成功发送了ATA_OP_CHECKPOWERMODE1命令
- 返回状态`0xff`对应`get_power_mode_string()`中的"active/idle"状态
- 这表明硬盘处于活动或空闲状态
**总体分析**:
1. SG_IO路径由于CDB格式问题完全失败，SCSI层拒绝了两个CHECKPOWERMODE命令
2. 传统IDE IOCTL路径成功执行了ATA_OP_CHECKPOWERMODE1命令
3. 硬盘返回状态`0xff`，表示处于"active/idle"状态
4. 程序最终正确输出了硬盘的电源状态，但这完全依赖于传统IDE IOCTL路径
根据调试输出中的ATA指令结果分析：
1. **SG_IO路径执行结果**：
- 尝试发送`ATA_OP_CHECKPOWERMODE1`(0xE5)命令失败：
- SCSI状态：0x2 (CHECK CONDITION)
- Sense Buffer：70 00 05 00 00 00 00 12 00 00 00 00 24 00 00 c0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- 错误解析：ASC 0x24 (INVALID FIELD IN CDB) - 表明CDB格式无效
- 尝试发送`ATA_OP_CHECKPOWERMODE2`(0x98)命令同样失败，错误原因相同
2. **传统IDE IOCTL路径执行结果**：
- 成功发送`ATA_OP_CHECKPOWERMODE1`(0xE5)命令
- 返回状态：0xff
- 对应电源状态："active/idle"（活动/空闲状态）
3. **总体结论**：
- SG_IO路径因CDB格式问题（`cdb[1]=0x0e`值无效）未能向硬盘发出有效指令
- 传统IDE IOCTL路径成功向硬盘发出`ATA_OP_CHECKPOWERMODE1`指令
- 硬盘响应状态0xff，表示处于活动或空闲状态
- 程序最终输出"active/idle"是基于传统IOCTL路径的成功执行
--
FROM 182.108.9.*