Revision 12a78d43de767eaf8fb272facb7a7b6f2dc6a9df authored by Masami Hiramatsu on 24 November 2017, 04:56:30 UTC, committed by Ingo Molnar on 24 November 2017, 07:36:12 UTC
The kbuild test robot reported this build warning: Warning: arch/x86/tools/test_get_len found difference at <jump_table>:ffffffff8103dd2c Warning: ffffffff8103dd82: f6 09 d8 testb $0xd8,(%rcx) Warning: objdump says 3 bytes, but insn_get_length() says 2 Warning: decoded and checked 1569014 instructions with 1 warnings This sequence seems to be a new instruction not in the opcode map in the Intel SDM. The instruction sequence is "F6 09 d8", means Group3(F6), MOD(00)REG(001)RM(001), and 0xd8. Intel SDM vol2 A.4 Table A-6 said the table index in the group is "Encoding of Bits 5,4,3 of the ModR/M Byte (bits 2,1,0 in parenthesis)" In that table, opcodes listed by the index REG bits as: 000 001 010 011 100 101 110 111 TEST Ib/Iz,(undefined),NOT,NEG,MUL AL/rAX,IMUL AL/rAX,DIV AL/rAX,IDIV AL/rAX So, it seems TEST Ib is assigned to 001. Add the new pattern. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: <stable@vger.kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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File | Mode | Size |
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kasan | ||
Kconfig | -rw-r--r-- | 24.8 KB |
Kconfig.debug | -rw-r--r-- | 3.8 KB |
Makefile | -rw-r--r-- | 3.6 KB |
backing-dev.c | -rw-r--r-- | 27.5 KB |
balloon_compaction.c | -rw-r--r-- | 4.9 KB |
bootmem.c | -rw-r--r-- | 20.8 KB |
cleancache.c | -rw-r--r-- | 9.9 KB |
cma.c | -rw-r--r-- | 13.5 KB |
cma.h | -rw-r--r-- | 573 bytes |
cma_debug.c | -rw-r--r-- | 4.5 KB |
compaction.c | -rw-r--r-- | 57.9 KB |
debug.c | -rw-r--r-- | 4.2 KB |
debug_page_ref.c | -rw-r--r-- | 1.4 KB |
dmapool.c | -rw-r--r-- | 13.7 KB |
early_ioremap.c | -rw-r--r-- | 6.8 KB |
fadvise.c | -rw-r--r-- | 4.4 KB |
failslab.c | -rw-r--r-- | 1.5 KB |
filemap.c | -rw-r--r-- | 86.4 KB |
frame_vector.c | -rw-r--r-- | 6.0 KB |
frontswap.c | -rw-r--r-- | 14.3 KB |
gup.c | -rw-r--r-- | 48.5 KB |
highmem.c | -rw-r--r-- | 11.7 KB |
hmm.c | -rw-r--r-- | 33.4 KB |
huge_memory.c | -rw-r--r-- | 79.7 KB |
hugetlb.c | -rw-r--r-- | 128.4 KB |
hugetlb_cgroup.c | -rw-r--r-- | 10.9 KB |
hwpoison-inject.c | -rw-r--r-- | 3.2 KB |
init-mm.c | -rw-r--r-- | 716 bytes |
internal.h | -rw-r--r-- | 16.6 KB |
interval_tree.c | -rw-r--r-- | 3.2 KB |
khugepaged.c | -rw-r--r-- | 48.5 KB |
kmemcheck.c | -rw-r--r-- | 3.0 KB |
kmemleak-test.c | -rw-r--r-- | 3.2 KB |
kmemleak.c | -rw-r--r-- | 58.7 KB |
ksm.c | -rw-r--r-- | 85.6 KB |
list_lru.c | -rw-r--r-- | 12.6 KB |
maccess.c | -rw-r--r-- | 3.0 KB |
madvise.c | -rw-r--r-- | 22.6 KB |
memblock.c | -rw-r--r-- | 50.5 KB |
memcontrol.c | -rw-r--r-- | 159.4 KB |
memory-failure.c | -rw-r--r-- | 47.8 KB |
memory.c | -rw-r--r-- | 124.8 KB |
memory_hotplug.c | -rw-r--r-- | 49.4 KB |
mempolicy.c | -rw-r--r-- | 69.6 KB |
mempool.c | -rw-r--r-- | 14.0 KB |
memtest.c | -rw-r--r-- | 2.8 KB |
migrate.c | -rw-r--r-- | 76.7 KB |
mincore.c | -rw-r--r-- | 6.7 KB |
mlock.c | -rw-r--r-- | 22.6 KB |
mm_init.c | -rw-r--r-- | 4.8 KB |
mmap.c | -rw-r--r-- | 97.3 KB |
mmu_context.c | -rw-r--r-- | 1.3 KB |
mmu_notifier.c | -rw-r--r-- | 11.2 KB |
mmzone.c | -rw-r--r-- | 2.4 KB |
mprotect.c | -rw-r--r-- | 13.9 KB |
mremap.c | -rw-r--r-- | 17.1 KB |
msync.c | -rw-r--r-- | 2.6 KB |
nobootmem.c | -rw-r--r-- | 10.7 KB |
nommu.c | -rw-r--r-- | 48.5 KB |
oom_kill.c | -rw-r--r-- | 29.3 KB |
page-writeback.c | -rw-r--r-- | 84.6 KB |
page_alloc.c | -rw-r--r-- | 211.2 KB |
page_counter.c | -rw-r--r-- | 4.8 KB |
page_ext.c | -rw-r--r-- | 11.1 KB |
page_idle.c | -rw-r--r-- | 5.4 KB |
page_io.c | -rw-r--r-- | 10.4 KB |
page_isolation.c | -rw-r--r-- | 8.0 KB |
page_owner.c | -rw-r--r-- | 15.3 KB |
page_poison.c | -rw-r--r-- | 2.7 KB |
page_vma_mapped.c | -rw-r--r-- | 6.3 KB |
pagewalk.c | -rw-r--r-- | 8.4 KB |
percpu-internal.h | -rw-r--r-- | 5.9 KB |
percpu-km.c | -rw-r--r-- | 2.9 KB |
percpu-stats.c | -rw-r--r-- | 5.9 KB |
percpu-vm.c | -rw-r--r-- | 10.1 KB |
percpu.c | -rw-r--r-- | 82.4 KB |
pgtable-generic.c | -rw-r--r-- | 5.3 KB |
process_vm_access.c | -rw-r--r-- | 10.1 KB |
quicklist.c | -rw-r--r-- | 2.4 KB |
readahead.c | -rw-r--r-- | 16.1 KB |
rmap.c | -rw-r--r-- | 51.0 KB |
rodata_test.c | -rw-r--r-- | 1.4 KB |
shmem.c | -rw-r--r-- | 111.3 KB |
slab.c | -rw-r--r-- | 110.3 KB |
slab.h | -rw-r--r-- | 14.5 KB |
slab_common.c | -rw-r--r-- | 34.6 KB |
slob.c | -rw-r--r-- | 16.1 KB |
slub.c | -rw-r--r-- | 141.8 KB |
sparse-vmemmap.c | -rw-r--r-- | 8.0 KB |
sparse.c | -rw-r--r-- | 23.0 KB |
swap.c | -rw-r--r-- | 27.7 KB |
swap_cgroup.c | -rw-r--r-- | 5.2 KB |
swap_slots.c | -rw-r--r-- | 9.1 KB |
swap_state.c | -rw-r--r-- | 21.5 KB |
swapfile.c | -rw-r--r-- | 94.5 KB |
truncate.c | -rw-r--r-- | 25.4 KB |
usercopy.c | -rw-r--r-- | 7.5 KB |
userfaultfd.c | -rw-r--r-- | 14.7 KB |
util.c | -rw-r--r-- | 18.4 KB |
vmacache.c | -rw-r--r-- | 3.2 KB |
vmalloc.c | -rw-r--r-- | 70.2 KB |
vmpressure.c | -rw-r--r-- | 14.3 KB |
vmscan.c | -rw-r--r-- | 115.5 KB |
vmstat.c | -rw-r--r-- | 51.1 KB |
workingset.c | -rw-r--r-- | 18.3 KB |
z3fold.c | -rw-r--r-- | 29.3 KB |
zbud.c | -rw-r--r-- | 18.2 KB |
zpool.c | -rw-r--r-- | 10.0 KB |
zsmalloc.c | -rw-r--r-- | 59.4 KB |
zswap.c | -rw-r--r-- | 32.8 KB |
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