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Linux Kernel每日要闻(2026.2.6)

  • 2026-02-06 11:16:45
Linux Kernel每日要闻(2026.2.6)

Linux 6.19-rc8 已于 2 月 1 日发布,这是最后一个候选版本,预计正式稳定版将于 2 月 8 日推出。因为年底假期影响,rc 周期额外延长一周,这次 rc8 整体平静,没有出现重大问题,主要是一些最后的打磨和修复。调度器中的 NEXT_BUDDY 功能因为在 MySQL、SPECjbb 等负载下出现性能回归而被禁用,相关基准测试显示某些场景已恢复甚至有所提升。

https://www.phoronix.com/news/Linux-6.19-rc8  

https://www.kernel.org/ (查看 mainline 6.19-rc8)

安全方面,Greg Kroah-Hartman 在 1 月 2 日的博客中详细说明了内核安全团队的工作流程:重点处理真实被利用的漏洞,而不是所有理论上的 CVE;许多报告最终被归类为质量问题而非安全问题;强调快速修复已知活跃攻击案例,并协调 embargo。近期稳定分支(如 6.18 等)继续推送补丁,修复了 irqchip、RDMA、io_uring 等子系统的 use-after-free 等问题,企业发行版如 Red Hat、Ubuntu、SUSE 也发布了相应更新。

http://www.kroah.com/log/blog/2026/01/02/linux-kernel-security-work  

https://ubuntu.com/security/notices (近期 USN 示例)

交换子系统(swap subsystem)现代化工作正在推进,引入 “swap table” 抽象层来简化代码、提升可维护性和可扩展性,这对内存压力大的场景很有帮助,目前还在 LWN 等处讨论中。

https://lwn.net/ (搜索 “Modernizing swapping: introducing the swap table”,2026 年 2 月 2 日文章)

硬件支持方面,针对某些笔记本(如 Lenovo Yoga Slim 7i Aura)在 s2idle 挂起后风扇和背光异常的问题,ACPI DSM “Turn On Display” 方法支持已进入 linux-next,用于让固件更早释放功率限制。Intel Gaudi 3 开源驱动因为代码量大且有问题,没能赶上 6.19,推迟到 6.20(可能称 7.0)周期。

https://www.phoronix.com/news/Linux-ACPI-DSM-Turn-On-Display  

https://www.phoronix.com/news/Linux-6.19-No-Gaudi-3-Driver

其他活跃讨论包括:Nouveau 驱动的大页支持修复(针对 NVK 性能),预计 7.0 周期恢复;b4 工具的 AI 辅助代码审查 TUI 界面已能自我审查补丁;RISC-V 的 CentOS Stream 镜像准备进入开发者预览阶段。

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  137. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
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  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.001036s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001732s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000729s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000776s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001451s ]
  6. SELECT * FROM `set` [ RunTime:0.000831s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001495s ]
  8. SELECT * FROM `article` WHERE `id` = 473881 LIMIT 1 [ RunTime:0.001303s ]
  9. UPDATE `article` SET `lasttime` = 1770442663 WHERE `id` = 473881 [ RunTime:0.025700s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.003629s ]
  11. SELECT * FROM `article` WHERE `id` < 473881 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.010395s ]
  12. SELECT * FROM `article` WHERE `id` > 473881 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001184s ]
  13. SELECT * FROM `article` WHERE `id` < 473881 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.008281s ]
  14. SELECT * FROM `article` WHERE `id` < 473881 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003020s ]
  15. SELECT * FROM `article` WHERE `id` < 473881 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.029038s ]
0.237876s