# git rev-parse -q --verify 10d20bd25e06b220b1d816228b036e367215dc60^{commit}
10d20bd25e06b220b1d816228b036e367215dc60
already have revision, skipping fetch
# git checkout -q -f -B kisskb 10d20bd25e06b220b1d816228b036e367215dc60
# git clean -qxdf
# git log -1
commit 10d20bd25e06b220b1d816228b036e367215dc60
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon Dec 5 12:10:29 2016 -0800

    shmem: fix shm fallocate() list corruption
    
    The shmem hole punching with fallocate(FALLOC_FL_PUNCH_HOLE) does not
    want to race with generating new pages by faulting them in.
    
    However, the wait-queue used to delay the page faulting has a serious
    problem: the wait queue head (in shmem_fallocate()) is allocated on the
    stack, and the code expects that "wake_up_all()" will make sure that all
    the queue entries are gone before the stack frame is de-allocated.
    
    And that is not at all necessarily the case.
    
    Yes, a normal wake-up sequence will remove the wait-queue entry that
    caused the wakeup (see "autoremove_wake_function()"), but the key
    wording there is "that caused the wakeup".  When there are multiple
    possible wakeup sources, the wait queue entry may well stay around.
    
    And _particularly_ in a page fault path, we may be faulting in new pages
    from user space while we also have other things going on, and there may
    well be other pending wakeups.
    
    So despite the "wake_up_all()", it's not at all guaranteed that all list
    entries are removed from the wait queue head on the stack.
    
    Fix this by introducing a new wakeup function that removes the list
    entry unconditionally, even if the target process had already woken up
    for other reasons.  Use that "synchronous" function to set up the
    waiters in shmem_fault().
    
    This problem has never been seen in the wild afaik, but Dave Jones has
    reported it on and off while running trinity.  We thought we fixed the
    stack corruption with the blk-mq rq_list locking fix (commit
    7fe311302f7d: "blk-mq: update hardware and software queues for sleeping
    alloc"), but it turns out there was _another_ stack corruptor hiding
    in the trinity runs.
    
    Vegard Nossum (also running trinity) was able to trigger this one fairly
    consistently, and made us look once again at the shmem code due to the
    faults often being in that area.
    
    Reported-and-tested-by: Vegard Nossum <vegard.nossum@oracle.com>.
    Reported-by: Dave Jones <davej@codemonkey.org.uk>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 10d20bd25e06b220b1d816228b036e367215dc60
# < make -j 48 ARCH=powerpc O=/home/kisskb/slave/build/linus_mpc885_ads_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mpc885_ads_defconfig
# make -j 48 ARCH=powerpc O=/home/kisskb/slave/build/linus_mpc885_ads_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_mpc885_ads_defconfig_powerpc'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/powerpc/include/generated/asm/clkdev.h
  WRAP    arch/powerpc/include/generated/asm/div64.h
  WRAP    arch/powerpc/include/generated/asm/export.h
  WRAP    arch/powerpc/include/generated/asm/irq_regs.h
  WRAP    arch/powerpc/include/generated/asm/irq_work.h
  WRAP    arch/powerpc/include/generated/asm/local64.h
  WRAP    arch/powerpc/include/generated/asm/mcs_spinlock.h
  WRAP    arch/powerpc/include/generated/asm/preempt.h
  WRAP    arch/powerpc/include/generated/asm/rwsem.h
  WRAP    arch/powerpc/include/generated/asm/vtime.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  HOSTCC  scripts/kallsyms
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  SHIPPED scripts/dtc/dtc-parser.tab.c
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  HOSTCC  scripts/dtc/util.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  GEN     scripts/mod/devicetable-offsets.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTCC  scripts/mod/modpost.o
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.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/powerpc/kernel/asm-offsets.s
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  HOSTLD  scripts/dtc/dtc
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  HOSTLD  scripts/mod/modpost
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/noinitramfs.o
  CC      init/init_task.o
  LD      usr/built-in.o
  UPD     include/generated/compile.h
  CC      init/version.o
  CC      arch/powerpc/mm/fault.o
  CC      arch/powerpc/mm/mem.o
  CC      arch/powerpc/mm/pgtable.o
  CC      arch/powerpc/mm/mmap.o
  CC      arch/powerpc/mm/init_32.o
  AS      arch/powerpc/lib/string.o
  CC      arch/powerpc/lib/alloc.o
  CC      arch/powerpc/mm/pgtable_32.o
  AS      arch/powerpc/lib/crtsavres.o
  CC      arch/powerpc/mm/mmu_context_nohash.o
  CC      arch/powerpc/mm/tlb_nohash.o
  CC      arch/powerpc/lib/code-patching.o
  CC      arch/powerpc/kernel/syscalls.o
  CC      arch/powerpc/lib/checksum_wrappers.o
  CC      arch/powerpc/kernel/irq.o
  CC      arch/powerpc/lib/feature-fixups.o
  AS      arch/powerpc/mm/tlb_nohash_low.o
  AS      arch/powerpc/lib/copy_32.o
  AS      arch/powerpc/lib/div64.o
  CC      arch/powerpc/kernel/cputable.o
  CC      arch/powerpc/kernel/pmc.o
  CC      arch/powerpc/lib/rheap.o
  CC      arch/powerpc/kernel/align.o
  CC      arch/powerpc/mm/hugetlbpage.o
  CC      arch/powerpc/mm/dma-noncoherent.o
  AS      arch/powerpc/lib/checksum_32.o
  CC      arch/powerpc/kernel/ptrace.o
  CC      arch/powerpc/kernel/idle.o
  CC      arch/powerpc/mm/8xx_mmu.o
  CC      arch/powerpc/kernel/signal_32.o
  CC      arch/powerpc/kernel/vdso.o
  CC      arch/powerpc/kernel/process.o
  CC      arch/powerpc/kernel/cacheinfo.o
  CC      arch/powerpc/kernel/signal.o
  CC      arch/powerpc/kernel/prom.o
  CC      arch/powerpc/kernel/time.o
  CPP     arch/powerpc/kernel/systbl_chk.i
  CC      arch/powerpc/kernel/sysfs.o
  CC      arch/powerpc/kernel/traps.o
  CC      arch/powerpc/kernel/setup-common.o
  CC      arch/powerpc/sysdev/fsl_soc.o
  CC      arch/powerpc/sysdev/fsl_mpic_err.o
  CC      arch/powerpc/kernel/udbg.o
  AS      arch/powerpc/kernel/misc.o
  CC      arch/powerpc/sysdev/cpm_common.o
  CC      arch/powerpc/sysdev/mpc8xx_pic.o
  LD      arch/powerpc/math-emu/built-in.o
  CC      arch/powerpc/kernel/io.o
  CC      arch/powerpc/sysdev/cpm1.o
  CC      arch/powerpc/platforms/8xx/m8xx_setup.o
  CC      arch/powerpc/kernel/dma.o
  AS      arch/powerpc/kernel/misc_32.o
  CC      arch/powerpc/kernel/of_platform.o
  CC      arch/powerpc/platforms/8xx/mpc885ads_setup.o
  CC      arch/powerpc/kernel/prom_parse.o
  LD      arch/powerpc/crypto/built-in.o
  CC      arch/powerpc/kernel/proc_powerpc.o
  AS      arch/powerpc/kernel/entry_32.o
  CC      arch/powerpc/kernel/setup_32.o
  LD      arch/powerpc/net/built-in.o
  CC      arch/powerpc/kernel/iomap.o
  LDS     arch/powerpc/kernel/vdso32/vdso32.lds
  AS      arch/powerpc/kernel/head_8xx.o
  LDS     arch/powerpc/kernel/vmlinux.lds
  CALL    /home/kisskb/slave/src/arch/powerpc/kernel/systbl_chk.sh
  VDSO32A arch/powerpc/kernel/vdso32/sigtramp.o
  VDSO32A arch/powerpc/kernel/vdso32/gettimeofday.o
  VDSO32A arch/powerpc/kernel/vdso32/datapage.o
  AS      arch/powerpc/kernel/systbl.o
  VDSO32A arch/powerpc/kernel/vdso32/note.o
  VDSO32A arch/powerpc/kernel/vdso32/cacheflush.o
  LD      certs/built-in.o
  VDSO32L arch/powerpc/kernel/vdso32/vdso32.so.dbg
  LD      arch/powerpc/sysdev/built-in.o
  OBJCOPY arch/powerpc/kernel/vdso32/vdso32.so
  AS      arch/powerpc/kernel/vdso32/vdso32_wrapper.o
  LD      arch/powerpc/lib/built-in.o
  LD      arch/powerpc/kernel/vdso32/built-in.o
  LD      arch/powerpc/mm/built-in.o
  CC      security/min_addr.o
  CC      security/commoncap.o
  CC      ipc/util.o
  CC      ipc/sem.o
  CC      ipc/msg.o
  CC      ipc/msgutil.o
  CC      ipc/syscall.o
  CC      ipc/shm.o
  CC      ipc/ipc_sysctl.o
  CC      kernel/fork.o
  CC      kernel/exec_domain.o
  CC      kernel/exit.o
  CC      kernel/resource.o
  CC      kernel/panic.o
  CC      kernel/softirq.o
  CC      kernel/cpu.o
  CC      kernel/sysctl.o
  CC      kernel/sysctl_binary.o
  CC      kernel/capability.o
  CC      kernel/kmod.o
  CC      kernel/sys_ni.o
  CC      kernel/kthread.o
  CC      kernel/nsproxy.o
  CC      kernel/workqueue.o
  CC      kernel/ptrace.o
  CC      kernel/params.o
  CC      kernel/sys.o
  CC      kernel/signal.o
  CC      kernel/extable.o
  CC      kernel/user.o
  CC      kernel/reboot.o
  CC      kernel/task_work.o
  CC      kernel/pid.o
  CC      kernel/notifier.o
  CC      kernel/ksysfs.o
  CC      kernel/cred.o
  CC      kernel/async.o
  LD      arch/powerpc/platforms/8xx/built-in.o
  CC      kernel/range.o
  CC      kernel/smpboot.o
  LD      arch/powerpc/platforms/built-in.o
  CC      kernel/ucount.o
  LD      init/mounts.o
  CC      kernel/groups.o
  LD      init/built-in.o
  CC      kernel/bpf/core.o
  LD      arch/powerpc/kernel/built-in.o
  CC      mm/filemap.o
  LD      sound/built-in.o
  LD      kernel/livepatch/built-in.o
  CC      crypto/api.o
  CC      crypto/cipher.o
  CC      crypto/compress.o
  CC      kernel/locking/mutex.o
  CC      kernel/irq/irqdesc.o
  CC      block/bio.o
  LD      firmware/built-in.o
  CC      kernel/power/qos.o
  CC      kernel/printk/printk.o
  CC      kernel/irq/handle.o
  CC      crypto/memneq.o
  CC      kernel/up.o
  CC      kernel/rcu/update.o
  CC      kernel/kallsyms.o
  CC      kernel/hung_task.o
  CC      kernel/utsname_sysctl.o
  CC      kernel/elfcore.o
  CC      fs/open.o
  CC      kernel/membarrier.o
  CC      kernel/irq_work.o
  CC      kernel/memremap.o
  CC      crypto/crypto_wq.o
  CC      fs/read_write.o
  CC      fs/file_table.o
  CC      crypto/algapi.o
  CC      fs/super.o
  CC      crypto/scatterwalk.o
  CC      kernel/sched/core.o
  CC      kernel/sched/loadavg.o
  CC      crypto/proc.o
  CC      kernel/sched/clock.o
  CC      net/socket.o
  CC      kernel/power/poweroff.o
  CC      kernel/time/time.o
  CC      kernel/time/timer.o
  CC      kernel/irq/manage.o
  CC      kernel/time/hrtimer.o
  CC      kernel/irq/spurious.o
  CC      crypto/aead.o
  CC      kernel/locking/semaphore.o
  LD      virt/lib/built-in.o
  CC      crypto/ablkcipher.o
  CC      kernel/rcu/sync.o
  CC      kernel/rcu/srcu.o
  LD      security/built-in.o
  CC      kernel/rcu/tiny.o
  CC      crypto/blkcipher.o
  LD      virt/built-in.o
  LD      ipc/built-in.o
  CC      lib/bcd.o
  CC      fs/char_dev.o
  CC      crypto/skcipher.o
  CC      lib/lockref.o
  CC      kernel/irq/resend.o
  CC      mm/mempool.o
  CC      kernel/irq/chip.o
  CC      lib/div64.o
  LD      drivers/amba/built-in.o
  CC      kernel/irq/dummychip.o
  CC      mm/oom_kill.o
  CC      kernel/sched/cputime.o
  LD      drivers/auxdisplay/built-in.o
  CC      lib/sort.o
  CC      crypto/echainiv.o
  CC      kernel/sched/idle_task.o
  CC      crypto/ahash.o
  LD      drivers/block/built-in.o
  CC      crypto/shash.o
  CC      lib/parser.o
  CC      lib/halfmd4.o
  LD      drivers/bus/built-in.o
  CC      fs/stat.o
  CC      lib/debug_locks.o
  LD      kernel/power/built-in.o
  CC      kernel/irq/irqdomain.o
  CC      kernel/irq/devres.o
  CC      mm/maccess.o
  LD      drivers/cdrom/built-in.o
  CC      lib/bust_spinlocks.o
  CC      lib/random32.o
  CC      lib/kasprintf.o
  CC      crypto/akcipher.o
  CC      drivers/base/component.o
  CC      lib/bitmap.o
  CC      kernel/locking/rwsem.o
/home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/home/kisskb/slave/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
  CC      drivers/base/core.o
  CC      kernel/irq/proc.o
  CC      drivers/char/mem.o
  CC      drivers/char/random.o
  CC      mm/page_alloc.o
  CC      mm/page-writeback.o
  CC      kernel/time/itimer.o
  CC      fs/exec.o
  CC      kernel/sched/fair.o
  CC      mm/readahead.o
  CC      mm/swap.o
  CC      kernel/sched/rt.o
  CC      kernel/time/posix-timers.o
  LD      kernel/rcu/built-in.o
  CC      lib/scatterlist.o
  CC      fs/pipe.o
  CC      lib/lcm.o
  CC      lib/gcd.o
  CC      kernel/sched/deadline.o
  CC      crypto/kpp.o
  CC      lib/list_sort.o
  CC      lib/uuid.o
  CC      mm/truncate.o
  CC      lib/iov_iter.o
  CC      lib/flex_array.o
  CC      fs/namei.o
  CC      crypto/algboss.o
  CC      kernel/locking/percpu-rwsem.o
  CC      lib/clz_ctz.o
  CC      lib/bsearch.o
  CC      crypto/testmgr.o
  CC      crypto/hmac.o
  CC      lib/find_bit.o
  CC      crypto/crypto_null.o
  CC      lib/llist.o
  CC      crypto/sha256_generic.o
  CC      lib/memweight.o
  CC      crypto/aes_generic.o
  CC      drivers/base/bus.o
  CC      lib/kfifo.o
  CC      block/elevator.o
  CC      kernel/time/posix-cpu-timers.o
  CC      kernel/sched/stop_task.o
  CC      fs/fcntl.o
  CC      lib/percpu-refcount.o
  CC      lib/percpu_ida.o
  CC      fs/ioctl.o
  CC      lib/rhashtable.o
  LD      kernel/irq/built-in.o
  CC      lib/reciprocal_div.o
  CC      mm/vmscan.o
  CC      lib/once.o
  CC      crypto/rng.o
  CC      lib/string_helpers.o
  CC      crypto/drbg.o
  CC      kernel/locking/rwsem-xadd.o
  LD      kernel/printk/built-in.o
  LD      kernel/bpf/built-in.o
  CC      crypto/jitterentropy-kcapi.o
  CC      crypto/jitterentropy.o
  CC      lib/hexdump.o
  CC      lib/kstrtox.o
  LD      crypto/crypto.o
  CC      lib/iomap_copy.o
  LD      crypto/crypto_algapi.o
  CC      lib/devres.o
  LD      crypto/crypto_blkcipher.o
  LD      crypto/crypto_hash.o
  CC      kernel/sched/wait.o
  CC      drivers/char/misc.o
  CC      kernel/sched/swait.o
  CC      drivers/base/dd.o
  CC      kernel/time/timekeeping.o
  CC      kernel/sched/completion.o
  LD      drivers/char/agp/built-in.o
  CC      lib/hweight.o
  CC      lib/bitrev.o
  CC      kernel/sched/idle.o
  CC      drivers/char/hw_random/core.o
  HOSTCC  lib/gen_crc32table
  CC      drivers/base/syscore.o
  CC      lib/genalloc.o
  CC      kernel/sched/debug.o
  CC      lib/syscall.o
  CC      lib/nlattr.o
  CC      mm/shmem.o
  CC      lib/zlib_inflate/inffast.o
  LD      kernel/locking/built-in.o
  CC      lib/atomic64.o
  CC      lib/zlib_inflate/inflate.o
  LD      crypto/jitterentropy_rng.o
  CC      drivers/base/driver.o
  CC      lib/dynamic_queue_limits.o
  CC      drivers/base/class.o
  CC      lib/strncpy_from_user.o
  CC      drivers/base/platform.o
  CC      lib/strnlen_user.o
  CC      lib/net_utils.o
  CC      drivers/base/cpu.o
  CC      lib/zlib_inflate/infutil.o
  CC      lib/sbitmap.o
  CC      mm/util.o
  LD      net/802/built-in.o
  CC      kernel/time/ntp.o
  LD      drivers/char/ipmi/built-in.o
  LD      crypto/cryptomgr.o
  CC      kernel/time/clocksource.o
  CC      fs/readdir.o
  CC      kernel/time/jiffies.o
  CC      drivers/base/firmware.o
  CC      lib/argv_split.o
  CC      fs/select.o
  CC      fs/dcache.o
  CC      mm/mmzone.o
  CC      lib/bug.o
  CC      drivers/base/init.o
  CC      lib/chacha20.o
  CC      drivers/base/map.o
  CC      fs/inode.o
  CC      lib/cmdline.o
  CC      fs/attr.o
  CC      drivers/base/devres.o
  CC      kernel/time/timer_list.o
  LD      drivers/clk/bcm/built-in.o
  CC      lib/ctype.o
  CC      lib/dec_and_lock.o
  CC      lib/decompress.o
  CC      lib/dump_stack.o
  CC      lib/dma-noop.o
  CC      block/blk-core.o
  CC      lib/earlycpio.o
  LD      drivers/clk/mvebu/built-in.o
  CC      lib/extable.o
  LD      crypto/built-in.o
  CC      lib/fdt.o
  CC      lib/fdt_empty_tree.o
  CC      lib/fdt_ro.o
  CC      block/blk-tag.o
  CC      drivers/base/attribute_container.o
  CC      drivers/base/transport_class.o
  CC      lib/zlib_inflate/inftrees.o
  LD      drivers/clk/ti/built-in.o
  LD      drivers/char/hw_random/rng-core.o
  CC      lib/fdt_rw.o
  LD      drivers/char/hw_random/built-in.o
  CC      lib/fdt_strerror.o
  CC      lib/fdt_sw.o
  CC      net/core/sock.o
  LD      drivers/char/built-in.o
  LD      drivers/clk/built-in.o
  CC      lib/fdt_wip.o
  CC      drivers/base/topology.o
  CC      lib/flex_proportions.o
  CC      drivers/base/container.o
  CC      lib/idr.o
  CC      kernel/time/timeconv.o
  CC      mm/vmstat.o
  CC      lib/int_sqrt.o
  CC      lib/ioremap.o
  CC      lib/irq_regs.o
  LD      drivers/clocksource/built-in.o
  LD      drivers/crypto/built-in.o
  CC      lib/is_single_threaded.o
  CC      drivers/base/property.o
  CC      lib/zlib_inflate/inflate_syms.o
  CC      drivers/base/cacheinfo.o
  CC      mm/backing-dev.o
  CC      lib/kobject.o
  CC      lib/kobject_uevent.o
  CC      lib/klist.o
  CC      fs/bad_inode.o
  LD      drivers/firewire/built-in.o
  CC      lib/nmi_backtrace.o
  CC      lib/md5.o
  CC      block/blk-sysfs.o
  CC      lib/nodemask.o
  CC      lib/plist.o
  LD      kernel/sched/built-in.o
  CC      kernel/time/timecounter.o
  CC      lib/radix-tree.o
  CC      lib/ratelimit.o
  LD      drivers/base/power/built-in.o
  CC      lib/rbtree.o
  CC      lib/seq_buf.o
  CC      drivers/base/dma-mapping.o
  CC      kernel/time/posix-clock.o
  LD      drivers/hwtracing/intel_th/built-in.o
  LD      drivers/firmware/broadcom/built-in.o
  CC      lib/sha1.o
  CC      kernel/time/alarmtimer.o
  LD      drivers/firmware/meson/built-in.o
  CC      lib/show_mem.o
  CC      lib/string.o
  CC      block/blk-flush.o
  LD      drivers/idle/built-in.o
  CC      lib/timerqueue.o
  CC      fs/file.o
  LD      drivers/firmware/built-in.o
  CC      kernel/time/clockevents.o
  CC      kernel/time/tick-common.o
  CC      kernel/time/tick-oneshot.o
  LD      lib/zlib_inflate/zlib_inflate.o
  CC      mm/mm_init.o
  LD      lib/zlib_inflate/built-in.o
  LD      drivers/gpu/drm/bridge/built-in.o
  CC      net/ethernet/eth.o
  CC      mm/mmu_context.o
  CC      lib/vsprintf.o
  LD      drivers/iommu/built-in.o
  LD      drivers/i2c/busses/built-in.o
  LD      drivers/i2c/algos/built-in.o
  CC      drivers/irqchip/irqchip.o
  CC      fs/filesystems.o
  LD      drivers/gpu/drm/hisilicon/built-in.o
  CC      lib/win_minmax.o
  GEN     lib/crc32table.h
  LD      drivers/lguest/built-in.o
  LD      drivers/i2c/muxes/built-in.o
  CC      lib/crc32.o
  LD      drivers/gpu/vga/built-in.o
  CC      fs/namespace.o
  LD      drivers/macintosh/built-in.o
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  CC      net/core/request_sock.o
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  LD      drivers/net/ethernet/amazon/built-in.o
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  LD      drivers/net/ethernet/xilinx/built-in.o
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  CC      fs/proc/thread_self.o
  CC      net/sunrpc/svc.o
  CC      fs/proc/proc_sysctl.o
  CC      net/sunrpc/svcsock.o
  CC      fs/proc/proc_net.o
  CC      fs/proc/kmsg.o
  CC      fs/proc/page.o
  CC      net/sunrpc/svcauth.o
  LD      net/core/built-in.o
  CC      net/sunrpc/svcauth_unix.o
  CC      net/sunrpc/addr.o
  CC      net/sunrpc/timer.o
  CC      net/sunrpc/rpcb_clnt.o
  CC      net/sunrpc/xdr.o
  CC      net/sunrpc/sunrpc_syms.o
  CC      net/sunrpc/svc_xprt.o
  CC      net/sunrpc/rpc_pipe.o
  CC      net/sunrpc/cache.o
  CC      net/sunrpc/xprtmultipath.o
  CC      net/sunrpc/stats.o
  CC      net/sunrpc/sysctl.o
  LD      fs/nfs/nfs.o
  LD      net/unix/unix.o
  LD      net/unix/built-in.o
  LD      fs/lockd/lockd.o
  LD      net/ipv4/built-in.o
  LD      fs/lockd/built-in.o
  LD      fs/nfs/nfsv2.o
  LD      fs/nfs/nfsv3.o
  LD      fs/nfs/built-in.o
  LD      fs/proc/proc.o
  LD      fs/proc/built-in.o
  LD      fs/built-in.o
  LD      net/sunrpc/sunrpc.o
  LD      net/sunrpc/built-in.o
  LD      net/built-in.o
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  KSYM    .tmp_kallsyms1.o
  KSYM    .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  BOOTCC  arch/powerpc/boot/cpm-serial.o
  BOOTAS  arch/powerpc/boot/crt0.o
  COPY    arch/powerpc/boot/zlib.h
  BOOTAS  arch/powerpc/boot/crtsavres.o
  COPY    arch/powerpc/boot/zconf.h
  BOOTCC  arch/powerpc/boot/cuboot.o
  COPY    arch/powerpc/boot/zutil.h
  COPY    arch/powerpc/boot/inffast.h
  COPY    arch/powerpc/boot/inffixed.h
  COPY    arch/powerpc/boot/inflate.h
  COPY    arch/powerpc/boot/inftrees.h
  COPY    arch/powerpc/boot/infutil.h
  COPY    arch/powerpc/boot/fdt.h
  BOOTCC  arch/powerpc/boot/fsl-soc.o
  COPY    arch/powerpc/boot/libfdt.h
  BOOTAS  arch/powerpc/boot/div64.o
  COPY    arch/powerpc/boot/libfdt_internal.h
  BOOTCC  arch/powerpc/boot/devtree.o
  BOOTCC  arch/powerpc/boot/elf_util.o
  BOOTCC  arch/powerpc/boot/ns16550.o
  BOOTCC  arch/powerpc/boot/main.o
  BOOTCC  arch/powerpc/boot/mpc8xx.o
  BOOTCC  arch/powerpc/boot/mpsc.o
  BOOTCC  arch/powerpc/boot/mpc52xx-psc.o
  BOOTCC  arch/powerpc/boot/serial.o
  BOOTCC  arch/powerpc/boot/planetcore.o
  BOOTCC  arch/powerpc/boot/simple_alloc.o
  BOOTCC  arch/powerpc/boot/ofconsole.o
  BOOTCC  arch/powerpc/boot/stdlib.o
  BOOTCC  arch/powerpc/boot/uartlite.o
  BOOTAS  arch/powerpc/boot/util.o
  BOOTCC  arch/powerpc/boot/oflib.o
  BOOTCC  arch/powerpc/boot/stdio.o
  BOOTCC  arch/powerpc/boot/cuboot-8xx.o
  BOOTCC  arch/powerpc/boot/ep88xc.o
/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc -m32 -Wp,-MD,arch/powerpc/boot/.zImage.lds.d  -nostdinc -isystem /opt/cross/gcc-4.6.3-nolibc/powerpc-linux/lib/gcc/powerpc-linux/4.6.3/include -I/home/kisskb/slave/src/arch/powerpc/include -I./arch/powerpc/include/generated/uapi -I./arch/powerpc/include/generated  -I/home/kisskb/slave/src/include -I./include -I/home/kisskb/slave/src/arch/powerpc/include/uapi -I/home/kisskb/slave/src/include/uapi -I./include/generated/uapi -include /home/kisskb/slave/src/include/linux/kconfig.h -D__KERNEL__  -I/home/kisskb/slave/src/arch/powerpc -E -Wp,-MD,arch/powerpc/boot/.zImage.lds.d -P -Upowerpc \
	-D__ASSEMBLY__ -DLINKER_SCRIPT -o arch/powerpc/boot/zImage.lds /home/kisskb/slave/src/arch/powerpc/boot/zImage.lds.S
  BOOTCC  arch/powerpc/boot/epapr.o
  BOOTAS  arch/powerpc/boot/string.o
  BOOTCC  arch/powerpc/boot/redboot-8xx.o
  DTC     arch/powerpc/boot/mpc885ads.dtb
  HOSTCC  arch/powerpc/boot/mktree
  HOSTCC  arch/powerpc/boot/hack-coff
  BOOTAS  arch/powerpc/boot/fixed-head.o
  COPY    arch/powerpc/boot/fdt_wip.c
  HOSTCC  arch/powerpc/boot/addnote
  COPY    arch/powerpc/boot/fdt.c
  COPY    arch/powerpc/boot/fdt_ro.c
  COPY    arch/powerpc/boot/fdt_rw.c
  COPY    arch/powerpc/boot/fdt_strerror.c
  COPY    arch/powerpc/boot/fdt_sw.c
  BOOTCC  arch/powerpc/boot/of.o
  COPY    arch/powerpc/boot/inflate.c
/home/kisskb/slave/src/arch/powerpc/boot/mpc8xx.c: In function 'mpc885_get_clock':
/home/kisskb/slave/src/arch/powerpc/boot/mpc8xx.c:27:26: warning: variable 'div' set but not used [-Wunused-but-set-variable]
  COPY    arch/powerpc/boot/inffast.c
  BOOTCC  arch/powerpc/boot/libfdt-wrapper.o
  BOOTCC  arch/powerpc/boot/opal.o
  COPY    arch/powerpc/boot/inftrees.c
  BOOTCC  arch/powerpc/boot/empty.o
  BOOTCC  arch/powerpc/boot/fdt_wip.o
  BOOTCC  arch/powerpc/boot/fdt_ro.o
  BOOTCC  arch/powerpc/boot/fdt_rw.o
  BOOTCC  arch/powerpc/boot/fdt.o
  COPY    arch/powerpc/boot/decompress_inflate.c
  BOOTCC  arch/powerpc/boot/fdt_sw.o
  BOOTCC  arch/powerpc/boot/inflate.o
  BOOTCC  arch/powerpc/boot/fdt_strerror.o
  BOOTCC  arch/powerpc/boot/inffast.o
  BOOTCC  arch/powerpc/boot/inftrees.o
  BOOTCC  arch/powerpc/boot/decompress.o
  BOOTAR  arch/powerpc/boot/wrapper.a
  WRAP    arch/powerpc/boot/cuImage.mpc885ads
Image Name:   Linux-4.9.0-rc8-g10d20bd
Created:      Wed Dec  7 04:52:13 2016
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    1657979 Bytes = 1619.12 kB = 1.58 MB
Load Address: 00400000
Entry Point:  004001a4
rm arch/powerpc/boot/mpc885ads.dtb
make[1]: Leaving directory '/home/kisskb/slave/build/linus_mpc885_ads_defconfig_powerpc'
Completed OK
# rm -rf /home/kisskb/slave/build/linus_mpc885_ads_defconfig_powerpc
# Build took: 0:00:28.336502