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Efficient Ops
Efficient Ops
Jun 24, 2024 · Operations

Linux 6.10 Introduces DRM Panic: BSOD‑Style Crash Screen Explained

Linux 6.10 adds a new DRM Panic infrastructure that displays a BSOD‑style screen on kernel crashes, supporting drivers like SimpleDRM, MGAG200, IMX and AST, while systemd‑255 introduces an experimental systemd‑bsod component for full‑screen emergency messages, offering a clearer way to diagnose panics.

BSODDRM PanicDiagnostics
0 likes · 5 min read
Linux 6.10 Introduces DRM Panic: BSOD‑Style Crash Screen Explained
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Apr 30, 2020 · Fundamentals

Detailed Explanation of ARMv8 Exception Handling Process

The article provides a thorough walkthrough of ARMv8 exception handling, describing the four exception levels (EL0‑EL3) and their dedicated stack and status registers, distinguishing synchronous and asynchronous faults, and detailing the vector table, entry routine, ESR‑based type decoding, handling steps such as do_mem_abort, and context restoration, illustrated with a Data Abort case.

ARMv8ELRESR
0 likes · 10 min read
Detailed Explanation of ARMv8 Exception Handling Process