From: Richard W. <ri...@no...> - 2014-06-05 21:50:02
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Am 05.06.2014 06:15, schrieb Honggang Li: > arch/x86/um/checksum_32.S had been copy & paste from x86. When build > x86 uml, csum_partial_copy_generic_i386 mess up the exception table. > In fact, exception table dose not work in uml kernel. Are you sure that exception tables do not work on UML? I said, I'm not sure. Can you please find out? In arch/um/kernel/trap.c:segv() we have the mechanism for it: else if (!is_user && arch_fixup(ip, regs)) goto out; The interesting question is, is this by design or was it just copy&pasted from x86 many moons ago? :) > And csum_partial_copy_generic_i386 never been called. So, delete it. I like such clean ups. :-) Thanks, //richard |