# git rev-parse -q --verify 0d665e7b109d512b7cae3ccef6e8654714887844^{commit}
0d665e7b109d512b7cae3ccef6e8654714887844
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0d665e7b109d512b7cae3ccef6e8654714887844
# git clean -qxdf
# git log -1
commit 0d665e7b109d512b7cae3ccef6e8654714887844
Author: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Date:   Fri Jan 19 15:49:24 2018 +0300

    mm, page_vma_mapped: Drop faulty pointer arithmetics in check_pte()
    
    Tetsuo reported random crashes under memory pressure on 32-bit x86
    system and tracked down to change that introduced
    page_vma_mapped_walk().
    
    The root cause of the issue is the faulty pointer math in check_pte().
    As ->pte may point to an arbitrary page we have to check that they are
    belong to the section before doing math. Otherwise it may lead to weird
    results.
    
    It wasn't noticed until now as mem_map[] is virtually contiguous on
    flatmem or vmemmap sparsemem. Pointer arithmetic just works against all
    'struct page' pointers. But with classic sparsemem, it doesn't because
    each section memap is allocated separately and so consecutive pfns
    crossing two sections might have struct pages at completely unrelated
    addresses.
    
    Let's restructure code a bit and replace pointer arithmetic with
    operations on pfns.
    
    Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Reported-and-tested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
    Acked-by: Michal Hocko <mhocko@suse.com>
    Fixes: ace71a19cec5 ("mm: introduce page_vma_mapped_walk()")
    Cc: stable@vger.kernel.org
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < git log --format=%s --max-count=1 0d665e7b109d512b7cae3ccef6e8654714887844
# < make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  allyesconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# yes \n | make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_sh-allyesconfig_sh4'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/sh/include/generated/uapi/asm/bitsperlong.h
  WRAP    arch/sh/include/generated/uapi/asm/bpf_perf_event.h
  WRAP    arch/sh/include/generated/uapi/asm/errno.h
  WRAP    arch/sh/include/generated/uapi/asm/fcntl.h
  WRAP    arch/sh/include/generated/uapi/asm/ioctl.h
  WRAP    arch/sh/include/generated/uapi/asm/ipcbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/kvm_para.h
  WRAP    arch/sh/include/generated/uapi/asm/mman.h
  WRAP    arch/sh/include/generated/uapi/asm/msgbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/param.h
  WRAP    arch/sh/include/generated/uapi/asm/poll.h
  WRAP    arch/sh/include/generated/uapi/asm/resource.h
  WRAP    arch/sh/include/generated/uapi/asm/sembuf.h
  CHK     include/generated/uapi/linux/version.h
  WRAP    arch/sh/include/generated/uapi/asm/shmbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/siginfo.h
  WRAP    arch/sh/include/generated/uapi/asm/socket.h
  WRAP    arch/sh/include/generated/uapi/asm/statfs.h
  WRAP    arch/sh/include/generated/uapi/asm/termbits.h
  UPD     include/generated/uapi/linux/version.h
  WRAP    arch/sh/include/generated/uapi/asm/termios.h
  WRAP    arch/sh/include/generated/uapi/asm/ucontext.h
  HOSTCC  scripts/basic/bin2c
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  WRAP    arch/sh/include/generated/asm/clkdev.h
  WRAP    arch/sh/include/generated/asm/current.h
  WRAP    arch/sh/include/generated/asm/delay.h
  WRAP    arch/sh/include/generated/asm/div64.h
  WRAP    arch/sh/include/generated/asm/emergency-restart.h
  WRAP    arch/sh/include/generated/asm/exec.h
  WRAP    arch/sh/include/generated/asm/irq_regs.h
  WRAP    arch/sh/include/generated/asm/irq_work.h
  WRAP    arch/sh/include/generated/asm/local.h
  WRAP    arch/sh/include/generated/asm/local64.h
  WRAP    arch/sh/include/generated/asm/mcs_spinlock.h
  WRAP    arch/sh/include/generated/asm/mm-arch-hooks.h
  WRAP    arch/sh/include/generated/asm/percpu.h
  WRAP    arch/sh/include/generated/asm/preempt.h
  WRAP    arch/sh/include/generated/asm/parport.h
  WRAP    arch/sh/include/generated/asm/rwsem.h
  CHK     include/generated/utsrelease.h
  WRAP    arch/sh/include/generated/asm/sizes.h
  WRAP    arch/sh/include/generated/asm/trace_clock.h
  WRAP    arch/sh/include/generated/asm/xor.h
  WRAP    arch/sh/include/generated/asm/serial.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/dtc/util.o
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  CC      scripts/mod/empty.o
  SHIPPED scripts/dtc/dtc-parser.tab.c
  SHIPPED scripts/dtc/dtc-parser.tab.h
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/conmakehash
  SHIPPED scripts/genksyms/parse.tab.c
  HOSTCC  scripts/asn1_compiler
  HOSTCC  scripts/genksyms/genksyms.o
  SHIPPED scripts/genksyms/lex.lex.c
  CC      scripts/mod/devicetable-offsets.s
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/extract-cert
  HOSTCC  scripts/insert-sys-cert
  Generating include/generated/machtypes.h
  HOSTCC  scripts/genksyms/lex.lex.o
  HOSTCC  scripts/selinux/genheaders/genheaders
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTCC  scripts/selinux/mdp/mdp
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  CHK     scripts/mod/devicetable-offsets.h
  UPD     scripts/mod/devicetable-offsets.h
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/sh/kernel/asm-offsets.s
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
<stdin>:1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]
  HOSTLD  scripts/genksyms/genksyms
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/mod/modpost
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/do_mounts_rd.o
  CC      init/do_mounts_initrd.o
  HOSTCC  usr/gen_init_cpio
  CC      init/do_mounts_md.o
  CC      init/initramfs.o
  CC      init/calibrate.o
  CC      init/init_task.o
  AS      arch/sh/kernel/debugtraps.o
  CC      arch/sh/kernel/dma-nommu.o
  CC      arch/sh/kernel/dumpstack.o
  CC      arch/sh/kernel/idle.o
  CC      arch/sh/kernel/io.o
  CC      arch/sh/mm/init.o
  CC      arch/sh/kernel/kdebugfs.o
  CC      arch/sh/kernel/irq.o
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/kernel/nmi_debug.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/mm/cache.o
  CC      arch/sh/kernel/irq_32.o
  UPD     include/generated/compile.h
  CC      arch/sh/kernel/process.o
  CC      arch/sh/mm/nommu.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/mm/cache-sh2.o
  CC      arch/sh/kernel/ptrace.o
  CC      arch/sh/mm/consistent.o
  CC      arch/sh/kernel/process_32.o
  CC      arch/sh/kernel/sys_sh.o
  CC      arch/sh/kernel/ptrace_32.o
  CC      arch/sh/mm/extable_32.o
  CC      arch/sh/kernel/reboot.o
  CC      arch/sh/mm/asids-debugfs.o
  CC      arch/sh/kernel/signal_32.o
  CC      arch/sh/kernel/setup.o
  CC      arch/sh/kernel/return_address.o
  CC      arch/sh/kernel/time.o
  AS      arch/sh/kernel/syscalls_32.o
  CC      arch/sh/kernel/topology.o
  CC      arch/sh/kernel/traps_32.o
  CC      arch/sh/kernel/unwinder.o
  CC      arch/sh/kernel/traps.o
  CC      arch/sh/kernel/iomap.o
  CC      arch/sh/boards/of-generic.o
  CC      init/version.o
  CC      arch/sh/math-emu/math.o
  CC      arch/sh/kernel/sys_sh32.o
make[2]: *** No rule to make target 'arch/sh/boot/dts/.dtb.o', needed by 'arch/sh/boot/dts/built-in.o'.  Stop.
/home/kisskb/slave/src/Makefile:1018: recipe for target 'arch/sh/boot/dts' failed
make[1]: *** [arch/sh/boot/dts] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      arch/sh/kernel/sh_bios.o
  CC      arch/sh/kernel/cpu/irq/imask.o
  CC      arch/sh/kernel/kgdb.o
  CC      arch/sh/kernel/sh_ksyms_32.o
  GEN     usr/initramfs_data.cpio
  CC      arch/sh/kernel/module.o
  AS      usr/initramfs_data.o
  CC      arch/sh/kernel/crash_dump.o
  CC      arch/sh/kernel/stacktrace.o
  AR      usr/built-in.o
  CC      arch/sh/kernel/kprobes.o
  CC      arch/sh/kernel/ftrace.o
  CC      arch/sh/kernel/disassemble.o
  CC      arch/sh/kernel/dwarf.o
In file included from /home/kisskb/slave/src/arch/sh/math-emu/math.c:23:0:
/home/kisskb/slave/src/include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
In file included from /home/kisskb/slave/src/arch/sh/math-emu/math.c:24:0:
/home/kisskb/slave/src/include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:54:0: warning: "WRITE" redefined [enabled by default]
/home/kisskb/slave/src/include/linux/kernel.h:65:0: note: this is the location of the previous definition
/home/kisskb/slave/src/arch/sh/math-emu/math.c:55:0: warning: "READ" redefined [enabled by default]
/home/kisskb/slave/src/include/linux/kernel.h:64:0: note: this is the location of the previous definition
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcmp_gt':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcmp_eq':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fadd':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
  CC      arch/sh/kernel/perf_callchain.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/perf_event.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fsub':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/hw_breakpoint.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fmul':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fdiv':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fmac':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:145:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:145:2: warning: left shift count >= width of type [enabled by default]
  AS      arch/sh/kernel/head_32.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
  AR      arch/sh/boards/built-in.o
  LDS     arch/sh/kernel/vmlinux.lds
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'ffloat':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'ftrc':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
  CC      arch/sh/kernel/cpu/init.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
  CC      arch/sh/kernel/cpu/clock-cpg.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcnvsd':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:323:2: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcnvds':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:333:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/cpu/clock.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c: At top level:
/home/kisskb/slave/src/arch/sh/math-emu/math.c:505:12: warning: 'ieee_fpe_handler' defined but not used [-Wunused-function]
  CC      arch/sh/kernel/cpu/pfc.o
  CC      arch/sh/kernel/cpu/fpu.o
  CC      arch/sh/kernel/cpu/proc.o
  AS      arch/sh/kernel/cpu/sh2/ex.o
  CC      arch/sh/kernel/cpu/sh2/probe.o
  AR      arch/sh/kernel/cpu/irq/built-in.o
  AS      arch/sh/kernel/cpu/sh2/entry.o
  CC      arch/sh/kernel/cpu/sh2/setup-sh7619.o
  CC      arch/sh/kernel/cpu/sh2/clock-sh7619.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:89: Warning: overflow in branch to __restore_all; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:208: Warning: overflow in branch to syscall_call; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:356: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:358: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:389: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock.c: In function 'clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock.c:25:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: In function 'cpg_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:53:3: warning: 'arch_init_clk_ops' is deprecated (declared at /home/kisskb/slave/src/arch/sh/include/asm/clock.h:8) [-Wdeprecated-declarations]
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: In function 'arch_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:77:2: warning: 'cpg_clk_init' is deprecated (declared at /home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:47) [-Wdeprecated-declarations]
  AR      arch/sh/mm/built-in.o
  AR      arch/sh/kernel/cpu/sh2/built-in.o
  AR      arch/sh/kernel/cpu/built-in.o
  AR      arch/sh/kernel/built-in.o
  AR      init/mounts.o
  AR      init/built-in.o
  AR      arch/sh/math-emu/built-in.o
make[1]: Leaving directory '/home/kisskb/slave/build/linus_sh-allyesconfig_sh4'
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/linus_sh-allyesconfig_sh4
# Build took: 0:00:08.793521