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grub menu gets stuck issue report and fix patch merge request


From: 段亚勇
Subject: grub menu gets stuck issue report and fix patch merge request
Date: Thu, 26 Sep 2024 02:07:21 -0700

Sorry for correcting the mail address from sunming@huaqin.com to simon.sun@huaqin.com.

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Best Regards, 
段亚勇  Data-SYS-STE-操作系统 
上海市杨浦区抖音新江湾广场 T2B 3F
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From: "段亚勇"<duanyayong@bytedance.com>
Date: Thu, Sep 26, 2024, 16:11
Subject: grub menu gets stuck issue report and fix patch merge request
Hi All,

We are working on Debian 10 OS version and Intel Xeon-2775TE HW model platform. We found a grub issue that grub menu will be stuck with a 1/200 ratio in AC power on/off stress test. After multiple validation and we co-worked with Intel, we found the root cause is unreliable "rdtsc" instruction usage. 

And I already raised a bug with url: https://savannah.gnu.org/bugs/index.php?66257 and attached related fix patch both to bug ticket and this mail's attachment. In patch, I did a detailed explanation and some information from Intel's expert. We are eager to merge this fix with grub so that all GNU grub users will meet this issue any more.
If there is any problem, please let us know by mail or bug ticket.
We are all looking forward to your feedback!

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Best Regards, 
Will Duan
Shanghai Yangpu District DouYin New Jiangwan Square T2B 3F
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