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i've been playing with 64bit and x32 processes ptracing each other.
seems like my PTRACE_REGS is getting truncated to 32bit values. i
can't check at what level this is happening since i don't have strace,
and gdb is segfaulting on me when i descend into ptrace calls. my
next step is to add some printk's to the kernel code paths, but before
i do that, is this expected to work ? since the full 64bit reg values
are available to x32 processes, it seems like doing PTRACE_REGS should
get me a structure with all 64bit values filled out ...
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