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A Red Hat Developer Fixes a Rare Bug in the Linux Kernel After Running Nearly 300,000 Experiments

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A Red Hat Developer Fixes a Rare Bug in the Linux Kernel After Running Nearly 300,000 Experiments

The error was more common on AMD processors and could cause the system to randomly hang on boot.

Developer linux from red hatRichard Jones, did a tough job: he found and fixed a rare bug in the Linux 6.4 kernel that caused the system to randomly hang on boot.

When working with virtual machine programs, Jones noticed that the Linux system sometimes did not boot completely. After a few days of careful analysis, he found that the reason was the function of displaying the time in the system logs.

To verify the correctness of his hypothesis, Jones applied a technique that can be compared to looking for a needle in a haystack. He used a tool called guestfish to automatically boot and stop Linux by monitoring the process. This experiment was repeated astronomically 292,612 times, and took only 21 hours.

A feature of this error was that it manifested itself more often on computers with processors AMDthan on Intel. But thanks to the perseverance and patience of Jones, this problem was successfully solved.

This case illustrates how hard work and attention to detail can lead to solving even the most complex problems. A bug that most of us would never have noticed has been found and fixed, making Linux even more reliable for all users.



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