tree:   https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git release
head:   15b36a4938815f8dbb940b212ecc7c7085a89ca0
commit: 7b56b064b8a95b3ef7a2b0c88f0d8baded2c4cd6 [1/6] x86: use APERF/MPERF for cpuinfo and scaling_cur_freq MHz
config: i386-randconfig-s1-201545 (attached as .config)
reproduce:
        git checkout 7b56b064b8a95b3ef7a2b0c88f0d8baded2c4cd6
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the acpi/release HEAD 15b36a4938815f8dbb940b212ecc7c7085a89ca0 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   arch/x86/built-in.o: In function `aperfmperf_snapshot_khz':

quoted

aperfmperf.c:(.text+0xcbd5): undefined reference to `__udivdi3'

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