[tip:x86/pti 8/11] Warning: ffffffff812c4dd8: f7 0f 1f 80 00 00 testl $0x801f,(%rdi)
From: kbuild test robot
Date: Sun Feb 11 2018 - 08:43:57 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/pti
head: ff37dc0cd96c266c7700386b7ba48abc32a91b1f
commit: 930ce1a7a55bc0eb8917f453ee22f1b6d67df5cd [8/11] Revert "x86/speculation: Simplify indirect_branch_prediction_barrier()"
config: x86_64-rhel (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 930ce1a7a55bc0eb8917f453ee22f1b6d67df5cd
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
>> Warning: ffffffff812c4dd8: f7 0f 1f 80 00 00 testl $0x801f,(%rdi)
Warning: objdump says 6 bytes, but insn_get_length() says 2
Warning: arch/x86/tools/test_get_len found difference at <kernfs_put>:ffffffff812c50b0
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https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip