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14.3.1. Linux crashes randomly

Question:
On my board, Linux crashes randomly or has random exceptions (especially floating point exceptions if it is a Power Architecture® processor). Why?

Answer:
Quite likely your SDRAM initialization is bad. See UBootCrashAfterRelocation for more information.

On a Power Architecture®, the instructions beginning with 0xFF are floating point instructions. When your memory subsystem fails, the Power Architecture® is reading bad values (0xFF) and thus executing illegal floating point instructions.
14.3. Linux 1. Abstract 14.3.2. Linux crashes when uncompressing the kernel
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