# git rev-parse -q --verify 093b995e3b55a0ae0670226ddfcb05bfbf0099ae^{commit}
093b995e3b55a0ae0670226ddfcb05bfbf0099ae
already have revision, skipping fetch
# git checkout -q -f -B kisskb 093b995e3b55a0ae0670226ddfcb05bfbf0099ae
# git clean -qxdf
# git log -1
commit 093b995e3b55a0ae0670226ddfcb05bfbf0099ae
Author: Huang Ying <ying.huang@intel.com>
Date:   Mon Mar 20 14:26:42 2017 +0800

    mm, swap: Remove WARN_ON_ONCE() in free_swap_slot()
    
    Before commit 452b94b8c8c7 ("mm/swap: don't BUG_ON() due to
    uninitialized swap slot cache"), the following bug is reported,
    
      ------------[ cut here ]------------
      kernel BUG at mm/swap_slots.c:270!
      invalid opcode: 0000 [#1] SMP
      CPU: 5 PID: 1745 Comm: (sd-pam) Not tainted 4.11.0-rc1-00243-g24c534bb161b #1
      Hardware name: System manufacturer System Product Name/Z170-K, BIOS 1803 05/06/2016
      RIP: 0010:free_swap_slot+0xba/0xd0
      Call Trace:
       swap_free+0x36/0x40
       do_swap_page+0x360/0x6d0
       __handle_mm_fault+0x880/0x1080
       handle_mm_fault+0xd0/0x240
       __do_page_fault+0x232/0x4d0
       do_page_fault+0x20/0x70
       page_fault+0x22/0x30
      ---[ end trace aefc9ede53e0ab21 ]---
    
    This is raised by the BUG_ON(!swap_slot_cache_initialized) in
    free_swap_slot().  This is incorrect, because even if the swap slots
    cache fails to be initialized, the swap should operate properly without
    the swap slots cache.  And the use_swap_slot_cache check later in the
    function will protect the uninitialized swap slots cache case.
    
    In commit 452b94b8c8c7, the BUG_ON() is replaced by WARN_ON_ONCE().  In
    the patch, the WARN_ON_ONCE() is removed too.
    
    Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
    Acked-by: Tim Chen <tim.c.chen@linux.intel.com>
    Cc: Michal Hocko <mhocko@suse.com>
    Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
    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 093b995e3b55a0ae0670226ddfcb05bfbf0099ae
# < make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  randconfig
KCONFIG_SEED=0xC4785B55
# Added to kconfig CONFIG_STANDALONE=y
# yes \n | make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_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-randconfig_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-randconfig_sh4'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  UPD     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/sh/include/generated/asm/bitsperlong.h
  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/errno.h
  WRAP    arch/sh/include/generated/asm/exec.h
  WRAP    arch/sh/include/generated/asm/fcntl.h
  WRAP    arch/sh/include/generated/asm/ioctl.h
  WRAP    arch/sh/include/generated/asm/ipcbuf.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/kvm_para.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/mman.h
  WRAP    arch/sh/include/generated/asm/msgbuf.h
  WRAP    arch/sh/include/generated/asm/param.h
  WRAP    arch/sh/include/generated/asm/parport.h
  WRAP    arch/sh/include/generated/asm/percpu.h
  WRAP    arch/sh/include/generated/asm/poll.h
  WRAP    arch/sh/include/generated/asm/preempt.h
  WRAP    arch/sh/include/generated/asm/resource.h
  WRAP    arch/sh/include/generated/asm/rwsem.h
  WRAP    arch/sh/include/generated/asm/sembuf.h
  WRAP    arch/sh/include/generated/asm/serial.h
  WRAP    arch/sh/include/generated/asm/shmbuf.h
  WRAP    arch/sh/include/generated/asm/siginfo.h
  WRAP    arch/sh/include/generated/asm/sizes.h
  WRAP    arch/sh/include/generated/asm/socket.h
  WRAP    arch/sh/include/generated/asm/statfs.h
  WRAP    arch/sh/include/generated/asm/termbits.h
  WRAP    arch/sh/include/generated/asm/termios.h
  WRAP    arch/sh/include/generated/asm/ucontext.h
  WRAP    arch/sh/include/generated/asm/trace_clock.h
  WRAP    arch/sh/include/generated/asm/xor.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/basic/bin2c
  Using /home/kisskb/slave/src as source for kernel
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/treesource.o
  CC      scripts/mod/devicetable-offsets.s
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/dtc/util.o
  HOSTCC  scripts/dtc/srcpos.o
  SHIPPED scripts/dtc/dtc-parser.tab.c
  SHIPPED scripts/dtc/dtc-parser.tab.h
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/sumversion.o
  HOSTCC  scripts/mod/modpost.o
  GEN     scripts/mod/devicetable-offsets.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/mod/modpost
  Generating include/generated/machtypes.h
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/sh/kernel/asm-offsets.s
  GEN     scripts/gdb/linux/constants.py
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
<stdin>:1316:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1319:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1322:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1325:2: warning: #warning syscall statx not implemented [-Wcpp]
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
  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
  CC      init/do_mounts_md.o
  CC      init/initramfs.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  CC      init/version.o
  HOSTCC  usr/gen_init_cpio
  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/irq.o
  CC      arch/sh/kernel/irq_32.o
  CC      arch/sh/kernel/io.o
  CC      arch/sh/kernel/kdebugfs.o
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/kernel/nmi_debug.o
  CC      arch/sh/kernel/process_32.o
  CC      arch/sh/kernel/ptrace_32.o
  CC      arch/sh/kernel/ptrace.o
  CC      arch/sh/kernel/reboot.o
  CC      arch/sh/kernel/return_address.o
  CC      arch/sh/kernel/topology.o
  CC      arch/sh/kernel/signal_32.o
  CC      arch/sh/kernel/sys_sh.o
  CC      arch/sh/kernel/process.o
  CC      arch/sh/kernel/traps.o
  CC      arch/sh/kernel/setup.o
  CC      arch/sh/kernel/traps_32.o
  AS      arch/sh/kernel/syscalls_32.o
  CC      arch/sh/kernel/unwinder.o
  CC      arch/sh/kernel/time.o
  CC      arch/sh/kernel/iomap.o
  LDS     arch/sh/kernel/vmlinux.lds
  CC      arch/sh/kernel/sys_sh32.o
  AS      arch/sh/kernel/head_32.o
  CC      arch/sh/kernel/ftrace.o
  CC      arch/sh/kernel/hw_breakpoint.o
  CC      arch/sh/kernel/sh_bios.o
  CC      arch/sh/kernel/kgdb.o
  CC      arch/sh/kernel/perf_callchain.o
  CC      arch/sh/kernel/perf_event.o
  CC      arch/sh/kernel/crash_dump.o
  CC      arch/sh/kernel/stacktrace.o
  CC      arch/sh/kernel/cpu/clock-cpg.o
  CC      arch/sh/kernel/cpu/init.o
  CC      arch/sh/kernel/cpu/clock.o
  CC      arch/sh/kernel/cpu/irq/imask.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/kernel/cpu/fpu.o
  LD      arch/sh/boards/built-in.o
  CC      arch/sh/kernel/cpu/pfc.o
  CC      arch/sh/kernel/cpu/sh4/probe.o
  CC      arch/sh/mm/cache.o
  CC      arch/sh/kernel/cpu/proc.o
  AS      arch/sh/kernel/cpu/sh4/../sh3/ex.o
  AS      arch/sh/kernel/cpu/sh4/../sh3/entry.o
  CC      arch/sh/kernel/cpu/sh4/sq.o
  CC      arch/sh/kernel/cpu/sh4/setup-sh4-202.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:89: Warning: overflow in branch to __restore_all; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:208: Warning: overflow in branch to syscall_call; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/../sh3/../../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/sh4/../sh3/../../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/sh4/../sh3/../../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/sh4/../sh3/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
  CC      arch/sh/mm/init.o
  CC      arch/sh/mm/consistent.o
  GEN     usr/initramfs_data.cpio.xz
  CC      arch/sh/kernel/cpu/sh4/clock-sh4.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/mm/cache-sh4.o
  CC      arch/sh/mm/flush-sh4.o
  CC      arch/sh/kernel/cpu/sh4/clock-sh4-202.o
  CC      arch/sh/mm/nommu.o
  CC      arch/sh/mm/extable_32.o
/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:52:3: warning: 'arch_init_clk_ops' is deprecated (declared at /home/kisskb/slave/src/arch/sh/include/asm/clock.h:7) [-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:76:2: warning: 'cpg_clk_init' is deprecated (declared at /home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:46) [-Wdeprecated-declarations]
  CC      arch/sh/mm/asids-debugfs.o
  LD      arch/sh/kernel/cpu/sh4/common.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
  AS      usr/initramfs_data.o
  LD      certs/built-in.o
  LD      usr/built-in.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/clock-sh4-202.c: In function 'arch_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/clock-sh4-202.c:162:2: warning: 'cpg_clk_init' is deprecated (declared at /home/kisskb/slave/src/arch/sh/include/asm/clock.h:11) [-Wdeprecated-declarations]
  LD      arch/sh/kernel/cpu/irq/built-in.o
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c: In function 'flush_cache_one':
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c:99:17: error: 'cached_to_uncached' undeclared (first use in this function)
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c:99:17: note: each undeclared identifier is reported only once for each function it appears in
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c: In function 'sh4_flush_cache_mm':
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c:192:2: error: implicit declaration of function 'cpu_context' [-Werror=implicit-function-declaration]
/home/kisskb/slave/src/arch/sh/mm/cache-sh4.c: At top level:
cc1: error: unrecognized command line option "-Wno-maybe-uninitialized" [-Werror]
cc1: all warnings being treated as errors
/home/kisskb/slave/src/scripts/Makefile.build:294: recipe for target 'arch/sh/mm/cache-sh4.o' failed
make[2]: *** [arch/sh/mm/cache-sh4.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh4/clock-sh4-202.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
  LD      arch/sh/kernel/cpu/sh4/built-in.o
  LD      arch/sh/kernel/cpu/built-in.o
  CC      mm/filemap.o
  CC      mm/mempool.o
  CC      mm/oom_kill.o
  CC      mm/maccess.o
  CC      kernel/cpu.o
  CC      kernel/fork.o
  CC      kernel/exec_domain.o
  CC      mm/page_alloc.o
  CC      kernel/exit.o
  CC      kernel/softirq.o
  CC      kernel/sysctl_binary.o
  CC      kernel/panic.o
  CC      mm/page-writeback.o
  CC      mm/truncate.o
  CC      kernel/resource.o
  CC      mm/swap.o
  CC      kernel/sysctl.o
  CC      mm/shmem.o
  CC      mm/readahead.o
  CC      mm/util.o
  CC      kernel/ptrace.o
  CC      mm/vmscan.o
  CC      kernel/capability.o
  CC      kernel/signal.o
  CC      mm/mmzone.o
  CC      kernel/user.o
  CC      mm/mm_init.o
  CC      mm/slab_common.o
  CC      kernel/sys.o
  CC      kernel/kmod.o
  CC      kernel/task_work.o
  CC      mm/percpu.o
  CC      mm/backing-dev.o
  CC      kernel/pid.o
  CC      mm/vmstat.o
  CC      mm/mmu_context.o
  CC      kernel/extable.o
  CC      kernel/workqueue.o
  CC      mm/compaction.o
  CC      kernel/kthread.o
  CC      kernel/params.o
  CC      mm/vmacache.o
  CC      mm/swap_slots.o
  LD      init/mounts.o
  CC      mm/interval_tree.o
  LD      init/built-in.o
  CC      kernel/sys_ni.o
/home/kisskb/slave/src/Makefile:1002: recipe for target 'arch/sh/mm' failed
make[1]: *** [arch/sh/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      mm/list_lru.o
  CC      mm/workingset.o
  CC      kernel/nsproxy.o
  CC      kernel/notifier.o
  CC      mm/debug.o
  CC      mm/nommu.o
  CC      mm/init-mm.o
  LD      arch/sh/kernel/built-in.o
  CC      mm/bootmem.o
  CC      kernel/cred.o
  CC      kernel/ksysfs.o
  CC      mm/fadvise.o
  CC      mm/memblock.o
  CC      kernel/reboot.o
  CC      kernel/async.o
  CC      kernel/range.o
  CC      mm/dmapool.o
  CC      kernel/smpboot.o
  CC      mm/sparse.o
  CC      mm/page_poison.o
  CC      kernel/ucount.o
  CC      kernel/groups.o
/home/kisskb/slave/src/mm/bootmem.c: In function 'mark_bootmem':
/home/kisskb/slave/src/mm/bootmem.c:385:1: warning: control reaches end of non-void function [-Wreturn-type]
  CC      mm/slab.o
  CC      kernel/debug/gdbstub.o
  CC      kernel/debug/debug_core.o
  CC      mm/failslab.o
  CC      kernel/events/core.o
  CC      kernel/debug/kdb/kdb_io.o
  CC      kernel/debug/kdb/kdb_main.o
  CC      kernel/debug/kdb/kdb_bt.o
  GENKDB  kernel/debug/kdb/gen-kdb_cmds.c
  CC      kernel/debug/kdb/kdb_support.o
  CC      kernel/debug/kdb/kdb_bp.o
  CC      kernel/events/ring_buffer.o
  CC      kernel/events/callchain.o
  CC      kernel/events/hw_breakpoint.o
  CC      kernel/gcov/base.o
  CC      kernel/gcov/fs.o
  CC      kernel/gcov/gcc_3_4.o
  CC      kernel/debug/kdb/kdb_debugger.o
  CC      mm/memtest.o
  CC      mm/quicklist.o
  LD      kernel/livepatch/built-in.o
  CC      mm/kmemleak.o
/home/kisskb/slave/src/mm/bootmem.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
  CC      kernel/debug/kdb/gen-kdb_cmds.o
  CC      mm/page_owner.o
  CC      mm/cleancache.o
  CC      kernel/irq/irqdesc.o
  CC      mm/balloon_compaction.o
  CC      mm/zpool.o
  CC      mm/page_ext.o
  CC      kernel/irq/handle.o
  CC      mm/frame_vector.o
  CC      kernel/locking/mutex.o
  CC      kernel/printk/printk.o
  CC      mm/debug_page_ref.o
  CC      kernel/power/qos.o
  CC      kernel/power/poweroff.o
  CC      kernel/printk/printk_safe.o
  CC      kernel/locking/semaphore.o
  CC      kernel/irq/manage.o
  CC      kernel/irq/spurious.o
  CC      kernel/rcu/update.o
  CC      kernel/locking/rwsem.o
  CC      kernel/locking/percpu-rwsem.o
  CC      kernel/irq/resend.o
  CC      kernel/irq/chip.o
  CC      kernel/irq/dummychip.o
  CC      kernel/sched/core.o
  CC      kernel/sched/loadavg.o
  CC      kernel/rcu/sync.o
  CC      kernel/irq/devres.o
  CC      kernel/rcu/srcu.o
  CC      kernel/irq/generic-chip.o
  CC      kernel/time/time.o
  CC      kernel/locking/mutex-debug.o
  CC      kernel/irq/irqdomain.o
  CC      kernel/profile.o
  CC      kernel/time/timer.o
  CC      kernel/locking/lockdep.o
  CC      kernel/stacktrace.o
  CC      kernel/futex.o
  CC      kernel/locking/lockdep_proc.o
  CC      kernel/irq/proc.o
  CC      kernel/up.o
  CC      kernel/locking/spinlock.o
  CC      kernel/uid16.o
  CC      kernel/kallsyms.o
  CC      kernel/locking/rtmutex.o
  CC      kernel/rcu/rcutorture.o
  CC      kernel/rcu/rcuperf.o
  CC      kernel/locking/rtmutex-debug.o
/home/kisskb/slave/src/kernel/sched/core.c: In function 'pick_next_task':
/home/kisskb/slave/src/kernel/sched/core.c:3322:1: warning: control reaches end of non-void function [-Wreturn-type]
  CC      kernel/sched/clock.o
  CC      kernel/time/timekeeping.o
  CC      kernel/rcu/tiny.o
  CC      kernel/time/hrtimer.o
  CC      kernel/sched/cputime.o
  CC      kernel/trace/trace_selftest_dynamic.o
  LD      kernel/gcov/built-in.o
  CC      kernel/acct.o
  GZIP    kernel/config_data.gz
  CC      kernel/locking/spinlock_debug.o
  CC      kernel/hung_task.o
  CC      kernel/sched/idle_task.o
  CC      kernel/relay.o
  CC      kernel/sched/fair.o
  CC      kernel/utsname_sysctl.o
  LD      kernel/power/built-in.o
  CC      kernel/tracepoint.o
  CC      kernel/irq_work.o
  CC      kernel/crash_dump.o
  CC      kernel/trace/trace_clock.o
  CC      kernel/trace/ftrace.o
  CC      kernel/sched/rt.o
  CC      kernel/trace/ring_buffer.o
  CC      kernel/trace/ring_buffer_benchmark.o
  CC      kernel/locking/rwsem-spinlock.o
/home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/home/kisskb/slave/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
  CC      kernel/locking/test-ww_mutex.o
  CC      kernel/trace/trace.o
  CC      kernel/time/ntp.o
  CC      kernel/torture.o
  CC      kernel/trace/trace_output.o
  CC      kernel/membarrier.o
  CC      kernel/trace/trace_seq.o
  CC      kernel/sched/deadline.o
  CC      kernel/memremap.o
  CC      kernel/sched/stop_task.o
  CC      kernel/sched/wait.o
  CC      kernel/trace/trace_stat.o
  CC      kernel/trace/trace_printk.o
  CC      kernel/trace/trace_sched_switch.o
  CC      kernel/trace/trace_functions.o
  CC      kernel/time/clocksource.o
  CC      kernel/time/jiffies.o
  CC      kernel/time/timer_list.o
  CC      kernel/time/timeconv.o
  CC      kernel/time/timecounter.o
  CC      kernel/trace/trace_irqsoff.o
  CC      kernel/trace/trace_hwlat.o
  CC      kernel/trace/trace_nop.o
  LD      kernel/irq/built-in.o
  CC      kernel/trace/trace_stack.o
  CHK     kernel/config_data.h
  CC      kernel/trace/blktrace.o
  CC      kernel/time/alarmtimer.o
  CC      kernel/sched/swait.o
  UPD     kernel/config_data.h
  CC      kernel/configs.o
  CC      kernel/time/posix-timers.o
  CC      kernel/trace/trace_events.o
  CC      kernel/time/posix-cpu-timers.o
  CC      kernel/trace/trace_export.o
  CC      kernel/trace/trace_event_perf.o
  LD      kernel/rcu/built-in.o
  CC      kernel/trace/trace_events_filter.o
  CC      kernel/trace/power-traces.o
  CC      kernel/trace/trace_events_trigger.o
  CC      kernel/time/posix-clock.o
  CC      kernel/time/itimer.o
  CC      kernel/sched/completion.o
  CC      kernel/time/clockevents.o
  CC      kernel/time/tick-common.o
  CC      kernel/time/sched_clock.o
  CC      kernel/trace/trace_kdb.o
  CC      kernel/sched/idle.o
  CC      kernel/sched/cpufreq.o
  CC      kernel/time/tick-oneshot.o
  CC      kernel/time/timekeeping_debug.o
  CC      kernel/time/tick-sched.o
  LD      kernel/debug/kdb/built-in.o
  CC      kernel/time/test_udelay.o
  LD      kernel/debug/built-in.o
/home/kisskb/slave/src/kernel/sched/core.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/home/kisskb/slave/src/kernel/printk/printk.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
  LD      kernel/sched/built-in.o
  LD      kernel/printk/built-in.o
  LD      kernel/time/built-in.o
  LD      mm/built-in.o
  LD      kernel/locking/built-in.o
  LD      kernel/trace/libftrace.o
  LD      kernel/events/built-in.o
  LD      kernel/trace/built-in.o
  LD      kernel/built-in.o
make[1]: *** wait: No child processes.  Stop.
Makefile:152: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-randconfig_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-randconfig_sh4
# Build took: 0:00:18.988983