I am NOT a programmer but a System Integrator with experience since DOS I bought a used Barebone PC and it has some minor issues: It is sometimes crashing, which is not connected to the RAM its running debian KVM…
Even I get an warning a function returns an address from local variable, it compiles. Isn't it then UB of compiler? The generated assembly: .text .LC0: .asciz "%in" .globl foo .type foo, @function foo: pushq %rbp # movq %rsp, %rbp…
I am trying to write to Extended Control Register 0 (xcr0) on an x86_64 Debian v7 virtual machine. My approach to doing so is through a kernel module (so CPL=0) with some inline assembly. However, I keep getting a general…