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24 个调试补丁、18 次内核启动：Linux 之父托瓦兹借助 AI 定位 Intel Xe 黑屏故障_我的网站

A |      8 月 26 日消息，科技媒体 Linuxiac 昨日（8 月 25 日）发布博文，报道称 Linux 创始人林纳斯 · 托瓦兹（Linus Torvalds）借助 AI，通过 24 个调试补丁、18 次内核启动，成功排查 Intel Xe  图形驱动中的内存破坏漏洞。

B | 托瓦兹描述本次排查过程为“地狱般的调试过程”，在其 Intel Battlemage G21（配备 16 GiB VRAM）上 GDM（GNOME 显示管理器）反复重启合成器，屏幕最终保持黑屏。附上相关截图如下：该问题出现在 Xe DRM 驱动的 Flat CCS 内存处理环节，根源来自 get_flat_ccs_offset () 函数的地址计算。    

    A waterlogged street is seen in Shenyang, northeast China's Liaoning Province, Aug. 24, 2026. Heavy to torrential rains lashed southeastern Liaoning from 8 a.m. Sunday to 11 a.m. Monday, with downpours in some areas, while northern and western parts of the province saw light to moderate rain and localized heavy to torrential rains in a few spots. Red alerts for torrential rain remain in effect across multiple parts of Liaoning. As of 6 a.m. Monday, nine cities had activated flood emergency responses, according to the provincial flood control and drought relief headquarters. (Xinhua/Li Gang)A total of about 12,700 people had been evacuated in northeast China's Liaoning Province by Monday morning, as torrential rain battered the region since Sunday morning, local authorities said.
Heavy to torrential rains lashed southeastern Liaoning from 8 a.m. Sunday to 11 a.m. Monday, with downpours in some areas, while northern and western parts of the province saw light to moderate rain and localized heavy to torrential rains in a few spots.
Red alerts for torrential rain remain in effect across multiple parts of Liaoning. As of 6 a.m. Monday, nine cities had activated flood emergency responses, according to the provincial flood control and drought relief headquarters.
The provincial emergency management department has directed eight cities, including Dalian, Anshan and Dandong, to place 3,611 rescue and emergency response teams totaling over 127,000 personnel on standby for flood relief. Dandong alone had evacuated 8,078 people by 6 a.m. Monday.
The Dandong meteorological observatory issued a red alert for torrential rain at 11:33 a.m. Monday, reporting that 160 to 240 mm of precipitation had fallen in the urban area over the previous 11 hours. Another 100 to 130 mm is expected in the following six to eight hours, with the maximum hourly rainfall intensity hitting 70 mm and the cumulative total potentially exceeding 350 mm by the end of the event.
China has a four-tier weather warning system, with red representing the most severe warning, followed by orange, yellow and blue.
    An aerial drone photo taken on Aug. 24, 2026 shows the Hunhe River in Shenyang, northeast China's Liaoning Province. Heavy to torrential rains lashed southeastern Liaoning from 8 a.m. Sunday to 11 a.m. Monday, with downpours in some areas, while northern and western parts of the province saw light to moderate rain and localized heavy to torrential rains in a few spots. Red alerts for torrential rain remain in effect across multiple parts of Liaoning. As of 6 a.m. Monday, nine cities had activated flood emergency responses, according to the provincial flood control and drought relief headquarters. (Xinhua/Li Gang)
    Vehicles drive through a waterlogged street in Shenyang, northeast China's Liaoning Province, Aug. 24, 2026. Heavy to torrential rains lashed southeastern Liaoning from 8 a.m. Sunday to 11 a.m. Monday, with downpours in some areas, while northern and western parts of the province saw light to moderate rain and localized heavy to torrential rains in a few spots. Red alerts for torrential rain remain in effect across multiple parts of Liaoning. As of 6 a.m. Monday, nine cities had activated flood emergency responses, according to the provincial flood control and drought relief headquarters. (Xinhua/Li Gang)
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C | 该函数先计算保留 CCS 存储区的起始位置，再将地址向上对齐到 128 KiB 边界。但随后，低于这个计算地址的全部空间都被 VRAM 分配器当作可用内存。这样一来，合成器首次提交 GPU 任务便失败，GDM 随即重启合成器，系统陷入黑屏。托瓦兹表示，最终修复只涉及把错误的 round_up () 改为 round_down ()。

D | 不过，定位过程远比修复代码复杂：他累计添加 24 个补丁，用于逐步增加调试信息，并启动内核 18 次，才锁定内存破坏的具体原因。托瓦兹表示在本次调试过程中，AI 承担添加调试代码和分析输出结果等大量重复工作。在调用处理过程中，AI 多次得出该问题无法解决的结论，不过在托瓦兹的多次协调指导下，不断推进让 AI 生成新的调试工具并分析结果，直至定位底层内存破坏。调查结束后，托瓦兹还让 AI 撰写了详细的提交说明。

E |

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