https://bugzilla.kernel.org/show_bug.cgi?id=12878





--- Comment #109 from Ondrej Zary <li...@rainbow-software.org>  2012-10-22 
19:41:41 ---
Found out by copying parts of x86_64 setup.S to i386 setup.S in 2.6.22 kernel
that the problem is A20-related. When the x86_64 A20 code is put into i386
setup.S, resume works with i386 kernel.

More testing revealed that the a20_test always succeeds, preventing any A20
switching. This allowed me to produce a 3.6 kernel with working resume by
commenting out all a20_test_short() and a20_test_long() calls (except the last
one) in enable_a20() in arch/x86/boot/a20.c

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