I've been resurrecting an old Pyro project under Gatesgarth. It's an Intel 32-bit system that needs maximum speed, so I decided to try to build the system and application as 64-bit, for more registers. It pretty much worked on the first try, and is about 8% faster. Now I'm trying to do it as x32, to see if that speeds it up even more.
Unable to find any specific instructions, I set the DEFAULTTUNE to "core2-64-x32" in my BSP conf file. Also, in the old project I had tinkered around with this a bit, and had found some kernel config settings somewhere, so I tried using them again: CONFIG_X86_X32=y CONFIG_COMPAT=y CONFIG_COMPAT_FOR_U64_ALIGNMENT=y CONFIG_SYSVIPC_COMPAT=y CONFIG_KEYS_COMPAT=y CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8 CONFIG_BLOCK_COMPAT=y Other than the first one, I don't know whether these are correct, or where I originally got them, or if there's a stock .cfg file that does all this. The system built fine, the SDK built fine, and my application built fine, but when I boot, I get a kernel panic, preceded by some message about "kmod busy with 50 threads for more than 5 seconds now". Is there some instruction on how to do a proper x32 build? I couldn't find one Googling. Barring that, do any of those kernel configs look bogus? -- Ciao, Paul D. DeRocco Paul mailto:[email protected]
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