David Herrmann wanted to disable the virtual terminal subsystem in order to save space on a kernel that didn’t need a VT. But, he still wanted to see kernel oops output for debugging purposes. The problem was that only the VT subsystem would display oops output—and he’d just disabled it.
No problem. David posted a patch to implement DRM-log, a separate console device that used the direct rendering manager and that could receive kernel oops output.
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