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It still times out. > > I briefly investigated this and it looks like a (gdb) prompt gets output when it shouldn't. > > gdbarch_dump: read_core_file_mappings = <0xaaaac98fb7f0> > (gdb) aarch64_dump_tdep: Lowest pc = 0x0x8000 (gdb) > > This doesn't seem to be related to your patch, but something else. Ah, the tdep dumper for aarch64 is missing a "\n"! So the prompt seems to be output in the beginning of the same line. Odd, and slightly fragile. In any case, this is easily fixed with the \n addition. I'll push an obvious change for that. Sorry for the noise.