mirror of https://github.com/l4ka/pistachio.git
37031aa006
- In rare cases, we might get a NMI (or breakpoint exception) just after sys_ipc has been invoked, but _before_ esp has been set to tss.esp0 in that case, we need to switch stacks manually and preserve the processor-saved frame. We make sure that, before tss there is enough scratch space to cover EFLAGS, CS, and EIP saved by the processor; this way, we can get around without having to spend KDB its own interrupt task gate |
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