二 | Legendary rock band Aerosmith kicked off its long-awaited "Peace Out" farewell tour in Philadelphia on Saturday.Aerosmith took the stage at the Wells Fargo Center, where they were joined by special guests The Black Crowes. The band played crowd-favorites such as "Back in the Saddle" and "Janie's Got a Gun," among other hits. It was the first show of their 39-stop tour, which they announced in May. "After 50 years, 10 world tours, and playing for over 100 million fans... It's time for one last go!" the band wrote on Instagram.
The five band members, which include frontman Steven Tyler and guitarists Joe Perry and Brad Whitford, are all in their 70s now. They got their start in 1970 in Boston and went on to reap international success and critical acclaim. The band has won the Grammy for Best Rock Performance by a Duo or Group four times — for 1991's "Janie's Got a Gun," 1994's "Livin' on the Edge," 1995's "Crazy" and 1999's "Pink."In 2012, the band talked with Lara Logan on CBS News' "60 Minutes" about their tumultuous 40 years together. "I think my perfectionism and my busting everyone's chops is what got this band to where it is today," frontman Steven Tyler said. "There's no doubt about Steven's greatness. When you ask what makes the band great, I think that it's a combination of all of us. What that was right now, I can't tell you," drummer Joey Kramer said."I think a lot of it is [Tyler is] unbelievably competitive. You know he's competitive with us. With each member of the band," bassist Tom Hamilton said.
The band will close out the tour on January 26 in Montreal, Canada. 。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。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 ()。
三 | 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。
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