# < git ls-remote /scratch/git/linus.git refs/heads/master
# < git rev-parse tmp/linus
remote == local, skipping fetch
# < git rev-parse tmp/linus
Upstream revision is 78fca1b95837a44983608302e89c7258981be9b3
Head not built, building
# < git reset --mixed
# git branch -D linus
Deleted branch linus (was 78fca1b9).
# git checkout -q -f -b linus tmp/linus
# < git ls-files --others --modified
# git ls-files --others --modified
cmd.log
# < /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=cris O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_cris-allnoconfig_cris CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/cris-linux/bin/cris-linux-  -f kisskb-version.mk
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
# < /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=cris O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_cris-allnoconfig_cris CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/cris-linux/bin/cris-linux-  allnoconfig
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
# /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=cris O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_cris-allnoconfig_cris CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/cris-linux/bin/cris-linux-  
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
  GEN     /scratch/kisskb/build/linus_cris-allnoconfig_cris/Makefile
scripts/kconfig/conf --silentoldconfig Kconfig
  GEN     /scratch/kisskb/build/linus_cris-allnoconfig_cris/Makefile
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  Using /scratch/kisskb/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  CC      kernel/bounds.s
  GEN     include/generated/bounds.h
  MKELF   scripts/mod/elfconfig.h
  CC      arch/cris/kernel/asm-offsets.s
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/sumversion.o
  GEN     include/generated/asm-offsets.h
  CALL    /scratch/kisskb/src/scripts/checksyscalls.sh
<stdin>:1514:2: warning: #warning syscall rt_tgsigqueueinfo not implemented
<stdin>:1518:2: warning: #warning syscall perf_event_open not implemented
<stdin>:1522:2: warning: #warning syscall recvmmsg not implemented
<stdin>:1526:2: warning: #warning syscall fanotify_init not implemented
<stdin>:1530:2: warning: #warning syscall fanotify_mark not implemented
<stdin>:1534:2: warning: #warning syscall prlimit64 not implemented
<stdin>:1538:2: warning: #warning syscall name_to_handle_at not implemented
<stdin>:1542:2: warning: #warning syscall open_by_handle_at not implemented
<stdin>:1546:2: warning: #warning syscall clock_adjtime not implemented
<stdin>:1550:2: warning: #warning syscall syncfs not implemented
  HOSTLD  scripts/mod/modpost
  CHK     include/generated/compile.h
  CC      init/main.o
  LD      usr/built-in.o
  CC      init/do_mounts.o
  CC      init/noinitramfs.o
  CC      arch/cris/kernel/process.o
  CC      init/calibrate.o
  CC      arch/cris/kernel/traps.o
  CC      arch/cris/kernel/irq.o
  CC      arch/cris/mm/init.o
  CC      arch/cris/kernel/ptrace.o
  CC      arch/cris/mm/fault.o
  CC      arch/cris/kernel/setup.o
  AS      arch/cris/arch-v10/kernel/entry.o
  CC      arch/cris/mm/tlb.o
  CC      arch/cris/kernel/time.o
  CC      arch/cris/mm/ioremap.o
  CC      arch/cris/arch-v10/kernel/traps.o
  CC      arch/cris/arch-v10/mm/fault.o
  CC      arch/cris/kernel/sys_cris.o
  UPD     include/generated/compile.h
  CC      arch/cris/arch-v10/kernel/shadows.o
  CC      arch/cris/arch-v10/mm/init.o
  CC      arch/cris/arch-v10/kernel/debugport.o
  CC      arch/cris/arch-v10/mm/tlb.o
  CC      arch/cris/arch-v10/kernel/irq.o
  LDS     arch/cris/kernel/vmlinux.lds
  CC      init/version.o
  CC      arch/cris/arch-v10/kernel/process.o
  CC      mm/filemap.o
  CC      mm/mempool.o
  CC      arch/cris/arch-v10/kernel/setup.o
  CC      kernel/sched.o
  CC      kernel/fork.o
  CC      arch/cris/arch-v10/kernel/signal.o
  CC      mm/oom_kill.o
  CC      kernel/exec_domain.o
  CC      arch/cris/arch-v10/kernel/time.o
  CC      mm/fadvise.o
  CC      arch/cris/arch-v10/kernel/ptrace.o
  CC      kernel/panic.o
  CC      arch/cris/arch-v10/kernel/dma.o
  CC      kernel/printk.o
  CC      mm/maccess.o
  CC      arch/cris/arch-v10/kernel/io_interface_mux.o
  CC      kernel/cpu.o
  AS      arch/cris/arch-v10/kernel/head.o
  LD      ipc/built-in.o
  CC      mm/page_alloc.o
  CC      kernel/exit.o
  CC      mm/page-writeback.o
  CC      kernel/itimer.o
  TIMEC   kernel/timeconst.h
  CC      mm/readahead.o
  CC      mm/swap.o
  CC      kernel/softirq.o
  CC      kernel/resource.o
  CC      mm/truncate.o
  CC      kernel/sysctl.o
  CC      mm/vmscan.o
  CC      mm/shmem.o
  CC      kernel/sysctl_binary.o
  CC      security/commoncap.o
  CC      kernel/capability.o
  CC      mm/prio_tree.o
  CC      security/min_addr.o
  CC      fs/open.o
  LD      crypto/built-in.o
  CC      kernel/ptrace.o
  CC      fs/read_write.o
  CC      mm/util.o
  CC      fs/file_table.o
  CC      kernel/timer.o
  CC      mm/mmzone.o
  CC      fs/super.o
  CC      kernel/user.o
  CC      fs/char_dev.o
  CC      mm/backing-dev.o
  CC      mm/vmstat.o
  CC      fs/stat.o
  CC      mm/page_isolation.o
  CC      fs/exec.o
  CC      kernel/signal.o
  CC      mm/mm_init.o
  CC      kernel/sys.o
  CC      mm/mmu_context.o
  CC      fs/pipe.o
  CC      kernel/kmod.o
  CC      mm/percpu.o
  CC      block/elevator.o
  CC      kernel/workqueue.o
  CC      fs/namei.o
  CC      kernel/pid.o
  CC      mm/fremap.o
  CC      fs/fcntl.o
  CC      block/blk-core.o
  CC      fs/ioctl.o
  CC      mm/highmem.o
  CC      block/blk-tag.o
  CC      kernel/rcupdate.o
  CC      mm/madvise.o
  CC      kernel/extable.o
  CC      kernel/params.o
  CC      block/blk-sysfs.o
  CC      fs/readdir.o
  CC      kernel/posix-timers.o
  CC      block/blk-flush.o
  CC      mm/memory.o
  CC      kernel/kthread.o
  LD      sound/built-in.o
  CC      fs/select.o
  CC      kernel/wait.o
  CC      block/blk-settings.o
  CC      mm/mincore.o
  CC      fs/fifo.o
  CC      mm/mlock.o
  CC      block/blk-ioc.o
  CC      block/blk-map.o
  CC      kernel/kfifo.o
  CC      mm/mmap.o
  CC      fs/inode.o
  CC      kernel/sys_ni.o
  CC      fs/dcache.o
  CC      mm/mprotect.o
  CC      block/blk-exec.o
  CC      mm/mremap.o
  CC      block/blk-merge.o
  LD      firmware/built-in.o
  CC      kernel/posix-cpu-timers.o
  CC      mm/rmap.o
  CC      fs/attr.o
  CC      block/blk-softirq.o
  CC      kernel/mutex.o
  CC      mm/msync.o
  CC      mm/vmalloc.o
  LD      arch/cris/arch-v10/drivers/built-in.o
  CC      kernel/hrtimer.o
  CC      kernel/rwsem.o
  CC      net/nonet.o
  CC      kernel/nsproxy.o
  CC      lib/bcd.o
  LD      drivers/auxdisplay/built-in.o
  LD      drivers/block/built-in.o
  CC      drivers/base/core.o
  LD      drivers/cdrom/built-in.o
  CC      drivers/char/mem.o
  CC      drivers/char/random.o
  LD      drivers/clk/built-in.o
  LD      net/built-in.o
  CC      kernel/srcu.o
  LD      drivers/firewire/built-in.o
  LD      arch/cris/arch-v10/lib/built-in.o
  LD      drivers/firmware/built-in.o
  AS      arch/cris/arch-v10/lib/checksum.o
  AS      arch/cris/arch-v10/lib/checksumcopy.o
  CC      kernel/semaphore.o
  CC      lib/div64.o
  AS      arch/cris/arch-v10/lib/csumcpfruser.o
  CC      lib/sort.o
  CC      arch/cris/arch-v10/lib/memset.o
/scratch/kisskb/src/kernel/fork.c: In function 'dup_task_struct':
/scratch/kisskb/src/kernel/fork.c:267: error: implicit declaration of function 'alloc_thread_info_node'
/scratch/kisskb/src/kernel/fork.c:267: warning: assignment makes pointer from integer without a cast
  CC      mm/pagewalk.o
  CC      mm/pgtable-generic.o
  CC      arch/cris/arch-v10/lib/string.o
  LD      drivers/gpio/built-in.o
  CC      arch/cris/arch-v10/lib/usercopy.o
  CC      mm/init-mm.o
  CC      mm/bootmem.o
  CC      mm/bounce.o
  CC      kernel/notifier.o
  CC      drivers/base/sys.o
  CC      fs/bad_inode.o
  CC      mm/dmapool.o
  LD      drivers/i2c/algos/built-in.o
  CC      drivers/char/misc.o
  LD      drivers/i2c/busses/built-in.o
  CC      fs/file.o
  LD      drivers/idle/built-in.o
  LD      drivers/gpu/drm/i2c/built-in.o
  LD      drivers/i2c/muxes/built-in.o
  LD      drivers/gpu/drm/built-in.o
  LD      drivers/ieee802154/built-in.o
  LD      drivers/i2c/built-in.o
  CC      lib/parser.o
  LD      drivers/gpu/stub/built-in.o
  CC      drivers/input/input.o
  CC      fs/filesystems.o
  LD      drivers/lguest/built-in.o
  LD      drivers/gpu/vga/built-in.o
  LD      drivers/macintosh/built-in.o
  LD      drivers/gpu/built-in.o
  CC      fs/namespace.o
  LD      drivers/mfd/built-in.o
  LD      drivers/media/common/tuners/built-in.o
  CC      lib/halfmd4.o
  CC      kernel/ksysfs.o
  CC      kernel/pm_qos_params.o
  CC      kernel/sched_clock.o
  LD      drivers/media/common/built-in.o
  CC      mm/slub.o
  CC      kernel/cred.o
  CC      drivers/input/input-compat.o
  CC      block/blk-timeout.o
  CC      block/blk-iopoll.o
  LD      drivers/media/rc/keymaps/built-in.o
  LD      drivers/media/rc/built-in.o
  LD      drivers/media/video/davinci/built-in.o
  CC      drivers/input/input-mt.o
  LD      drivers/media/video/built-in.o
  LD      drivers/media/built-in.o
  LD      arch/cris/mm/built-in.o
  LD      drivers/net/built-in.o
  CC      block/blk-lib.o
  LD      drivers/nfc/built-in.o
  LD      arch/cris/kernel/built-in.o
  LD      drivers/misc/cb710/built-in.o
  CC      kernel/async.o
  AR      arch/cris/arch-v10/lib/lib.a
  CC      lib/debug_locks.o
  CC      drivers/base/bus.o
  CC      block/ioctl.o
  LD      drivers/platform/built-in.o
  LD      drivers/misc/eeprom/built-in.o
make[2]: *** [kernel/fork.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      lib/random32.o
  LD      drivers/misc/lis3lv02d/built-in.o
  CC      lib/bust_spinlocks.o
  CC      block/genhd.o
  CC      lib/hexdump.o
  CC      drivers/tty/tty_io.o
  CC      block/scsi_ioctl.o
  CC      block/noop-iosched.o
  LD      drivers/misc/ti-st/built-in.o
  LD      drivers/misc/built-in.o
  CC      fs/seq_file.o
  CC      fs/xattr.o
  CC      drivers/input/ff-core.o
  CC      lib/kasprintf.o
  CC      drivers/base/dd.o
  CC      drivers/video/fb_notify.o
  CC      drivers/base/syscore.o
  CC      lib/bitmap.o
  CC      drivers/tty/n_tty.o
  CC      drivers/tty/tty_ioctl.o
  CC      lib/scatterlist.o
  LD      arch/cris/arch-v10/mm/built-in.o
  CC      lib/string_helpers.o
  CC      drivers/tty/tty_ldisc.o
  CC      drivers/base/driver.o
  CC      drivers/base/class.o
  CC      drivers/input/mousedev.o
  LD      drivers/video/backlight/built-in.o
/scratch/kisskb/src/kernel/pm_qos_params.c: In function 'pm_qos_get_value':
/scratch/kisskb/src/kernel/pm_qos_params.c:136: warning: control reaches end of non-void function
  CC      lib/gcd.o
  CC      fs/libfs.o
  CC      lib/lcm.o
  CC      drivers/tty/tty_buffer.o
  CC      fs/fs-writeback.o
  LD      drivers/video/console/built-in.o
  LD      drivers/video/display/built-in.o
  CC      drivers/base/platform.o
  CC      lib/list_sort.o
  CC      drivers/tty/tty_port.o
  LD      drivers/video/omap2/displays/built-in.o
  CC      fs/pnode.o
  CC      fs/drop_caches.o
  LD      drivers/video/omap2/dss/built-in.o
  CC      fs/splice.o
  LD      drivers/video/omap2/omapfb/built-in.o
  LD      drivers/video/omap2/built-in.o
  CC      fs/sync.o
  CC      drivers/base/cpu.o
  CC      lib/uuid.o
  CC      drivers/tty/tty_mutex.o
  CC      fs/utimes.o
  CC      fs/stack.o
  CC      drivers/base/firmware.o
  CC      fs/fs_struct.o
  CC      lib/flex_array.o
  CC      drivers/tty/pty.o
  LD      drivers/tty/ipwireless/built-in.o
  CC      fs/statfs.o
/scratch/kisskb/src/mm/bootmem.c: In function 'mark_bootmem':
/scratch/kisskb/src/mm/bootmem.c:354: warning: control reaches end of non-void function
  LD      drivers/tty/serial/built-in.o
  CC      lib/kstrtox.o
  CC      drivers/tty/vt/vt_ioctl.o
  CC      lib/iomap.o
  CC      lib/iomap_copy.o
  CC      lib/devres.o
  CC      lib/find_last_bit.o
  CC      drivers/base/init.o
  CC      drivers/base/map.o
  CC      drivers/base/devres.o
  CC      fs/buffer.o
  CC      fs/bio.o
  CC      fs/block_dev.o
  CC      drivers/base/attribute_container.o
  CC      lib/hweight.o
  CC      lib/argv_split.o
  CC      lib/cmdline.o
  CC      lib/ctype.o
  CC      fs/direct-io.o
  CC      drivers/tty/vt/vc_screen.o
  CC      drivers/tty/vt/selection.o
  CC      lib/dec_and_lock.o
  CC      fs/mpage.o
  CC      fs/ioprio.o
  CC      fs/devpts/inode.o
  LD      arch/cris/arch-v10/kernel/built-in.o
  CC      fs/partitions/check.o
  LD      fs/notify/dnotify/built-in.o
  CC      drivers/base/transport_class.o
  CC      drivers/tty/vt/keyboard.o
  LD      fs/notify/fanotify/built-in.o
  CC      lib/decompress.o
  CC      drivers/tty/vt/consolemap.o
  CONMK   drivers/tty/vt/consolemap_deftbl.c
  CC      drivers/tty/vt/vt.o
  LD      fs/notify/inotify/built-in.o
  SHIPPED drivers/tty/vt/defkeymap.c
  LD      fs/notify/built-in.o
  LD      fs/quota/built-in.o
  CC      drivers/base/dma-mapping.o
  LD      drivers/base/power/built-in.o
  CC      fs/ramfs/inode.o
  CC      fs/sysfs/inode.o
  CC      fs/eventpoll.o
  CC      drivers/base/firmware_class.o
  CC      fs/partitions/msdos.o
  CC      lib/dump_stack.o
  CC      fs/ramfs/file-mmu.o
  CC      lib/extable.o
  CC      fs/sysfs/file.o
  CC      fs/proc/mmu.o
  CC      lib/find_next_bit.o
  CC      fs/sysfs/dir.o
  CC      fs/sysfs/symlink.o
  CC      drivers/tty/vt/consolemap_deftbl.o
  CC      fs/proc/task_mmu.o
  CC      fs/sysfs/mount.o
  CC      fs/sysfs/bin.o
  CC      fs/anon_inodes.o
  CC      fs/sysfs/group.o
  CC      lib/idr.o
  CC      lib/int_sqrt.o
  CC      fs/signalfd.o
  CC      drivers/tty/vt/defkeymap.o
  CC      fs/timerfd.o
  CC      fs/eventfd.o
  CC      lib/ioremap.o
  CC      lib/irq_regs.o
  CC      lib/is_single_threaded.o
  CC      lib/klist.o
  CC      lib/kobject.o
  CC      fs/aio.o
  CC      fs/locks.o
  LD      security/built-in.o
  CC      lib/kobject_uevent.o
  CC      fs/proc/inode.o
  CC      fs/binfmt_script.o
  CC      fs/proc/root.o
  CC      lib/kref.o
  CC      lib/plist.o
  CC      lib/prio_heap.o
  CC      lib/prio_tree.o
  CC      lib/proportions.o
  CC      lib/radix-tree.o
  LD      drivers/char/built-in.o
  CC      fs/proc/base.o
  CC      fs/proc/generic.o
  CC      fs/proc/array.o
  CC      fs/proc/proc_tty.o
  LD      drivers/video/built-in.o
  CC      lib/ratelimit.o
  CC      fs/proc/cmdline.o
  CC      fs/proc/consoles.o
  CC      lib/rbtree.o
  CC      lib/reciprocal_div.o
  CC      fs/proc/cpuinfo.o
  CC      lib/rwsem-spinlock.o
  CC      lib/sha1.o
  CC      fs/proc/devices.o
  CC      fs/proc/interrupts.o
  CC      lib/show_mem.o
  CC      lib/string.o
  CC      fs/proc/loadavg.o
  CC      lib/timerqueue.o
  CC      lib/vsprintf.o
  CC      fs/proc/meminfo.o
  CC      fs/proc/stat.o
  CC      fs/proc/uptime.o
  CC      fs/proc/version.o
  LD      fs/devpts/devpts.o
  LD      fs/devpts/built-in.o
  CC      fs/proc/softirqs.o
  CC      fs/proc/proc_sysctl.o
  CC      fs/proc/kmsg.o
  CC      fs/proc/page.o
  LD      init/mounts.o
  LD      init/built-in.o
/scratch/kisskb/src/lib/iomap.c: In function 'ioread8_rep':
/scratch/kisskb/src/lib/iomap.c:197: warning: statement with no effect
/scratch/kisskb/src/lib/iomap.c: In function 'ioread16_rep':
/scratch/kisskb/src/lib/iomap.c:201: warning: statement with no effect
  LD      drivers/input/input-core.o
/scratch/kisskb/src/lib/iomap.c: In function 'ioread32_rep':
/scratch/kisskb/src/lib/iomap.c:205: warning: statement with no effect
  LD      drivers/base/built-in.o
  LD      drivers/input/built-in.o
  LD      fs/partitions/built-in.o
  LD      lib/built-in.o
  LD      fs/ramfs/ramfs.o
  LD      fs/ramfs/built-in.o
/scratch/kisskb/src/kernel/sched.c: In function 'pick_next_task':
/scratch/kisskb/src/kernel/sched.c:4069: warning: control reaches end of non-void function
  LD      block/built-in.o
  LD      fs/sysfs/built-in.o
  LD      mm/built-in.o
  LD      fs/proc/proc.o
  LD      fs/proc/built-in.o
make[1]: *** [kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
  LD      fs/built-in.o
  AR      lib/lib.a
  LD      drivers/tty/vt/built-in.o
  LD      drivers/tty/built-in.o
  LD      drivers/built-in.o
make: *** [sub-make] Error 2
make failed, trying to bisect ..
## bisect start
Last known good revision eddecbb601c9ea3fab7e67d7892010fc9426d1e6
# < git symbolic-ref HEAD
# < git merge-base eddecbb601c9ea3fab7e67d7892010fc9426d1e6 78fca1b95837a44983608302e89c7258981be9b3

# < git ls-files --others --modified
# git ls-files --others --modified
cmd.log
# git bisect reset linus
Already on 'linus'
# git bisect start
# git bisect bad
# git bisect good eddecbb601c9ea3fab7e67d7892010fc9426d1e6
Bisecting: 1392 revisions left to test after this (roughly 11 steps)
[b8c4c96ed4cdecf5ae51fc6f4c006658e873047f] SLUB: Write to per cpu data when allocating it
Trying 78fca1b95837a44983608302e89c7258981be9b3

# < /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=cris O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_cris-allnoconfig_cris CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/cris-linux/bin/cris-linux-  allnoconfig
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
# /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=cris O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_cris-allnoconfig_cris CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/cris-linux/bin/cris-linux-  
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
  GEN     /scratch/kisskb/build/linus_cris-allnoconfig_cris/Makefile
scripts/kconfig/conf --silentoldconfig Kconfig
  GEN     /scratch/kisskb/build/linus_cris-allnoconfig_cris/Makefile
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  Using /scratch/kisskb/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  CC      arch/cris/kernel/asm-offsets.s
  GEN     include/generated/asm-offsets.h
  CALL    /scratch/kisskb/src/scripts/checksyscalls.sh
<stdin>:1514:2: warning: #warning syscall rt_tgsigqueueinfo not implemented
<stdin>:1518:2: warning: #warning syscall perf_event_open not implemented
<stdin>:1522:2: warning: #warning syscall recvmmsg not implemented
<stdin>:1526:2: warning: #warning syscall fanotify_init not implemented
<stdin>:1530:2: warning: #warning syscall fanotify_mark not implemented
<stdin>:1534:2: warning: #warning syscall prlimit64 not implemented
<stdin>:1538:2: warning: #warning syscall name_to_handle_at not implemented
<stdin>:1542:2: warning: #warning syscall open_by_handle_at not implemented
<stdin>:1546:2: warning: #warning syscall clock_adjtime not implemented
<stdin>:1550:2: warning: #warning syscall syncfs not implemented
  CHK     include/generated/compile.h
  CC      init/main.o
  CC      arch/cris/kernel/process.o
  CC      arch/cris/arch-v10/mm/fault.o
  CC      init/do_mounts.o
  CC      arch/cris/mm/init.o
  CC      init/noinitramfs.o
  CC      arch/cris/mm/fault.o
  CC      arch/cris/arch-v10/mm/init.o
  CC      arch/cris/kernel/traps.o
  CC      init/calibrate.o
  CC      arch/cris/kernel/irq.o
  CC      arch/cris/arch-v10/mm/tlb.o
  CC      arch/cris/mm/tlb.o
  CC      arch/cris/kernel/ptrace.o
  CC      arch/cris/mm/ioremap.o
  CC      security/commoncap.o
  CC      arch/cris/kernel/setup.o
  CC      arch/cris/kernel/time.o
  CC      arch/cris/kernel/sys_cris.o
  CC      security/min_addr.o
  AS      arch/cris/arch-v10/kernel/entry.o
  CC      arch/cris/arch-v10/kernel/traps.o
  CC      arch/cris/arch-v10/kernel/debugport.o
  CC      arch/cris/arch-v10/kernel/irq.o
  CC      init/version.o
  CC      arch/cris/arch-v10/kernel/process.o
  CC      arch/cris/arch-v10/kernel/setup.o
  CC      arch/cris/arch-v10/kernel/signal.o
  CC      arch/cris/arch-v10/kernel/time.o
  CC      arch/cris/arch-v10/kernel/ptrace.o
  CC      arch/cris/arch-v10/kernel/dma.o
  CC      arch/cris/arch-v10/kernel/io_interface_mux.o
  CC      block/elevator.o
  CC      net/nonet.o
  CC      block/blk-core.o
  CC      block/blk-tag.o
  CC      block/blk-sysfs.o
  CC      block/blk-flush.o
  CC      arch/cris/arch-v10/lib/usercopy.o
  CC      block/blk-settings.o
  CC      block/blk-ioc.o
  CC      block/blk-map.o
  CC      drivers/char/mem.o
  CC      block/blk-exec.o
  CC      drivers/char/random.o
  CC      block/blk-merge.o
  CC      drivers/char/misc.o
  CC      block/blk-softirq.o
  CC      block/blk-timeout.o
  CC      block/blk-iopoll.o
  CC      mm/filemap.o
  CC      mm/mempool.o
  CC      block/blk-lib.o
  CC      block/ioctl.o
  CC      drivers/input/input.o
  CC      mm/oom_kill.o
  CC      drivers/base/core.o
  CC      drivers/input/input-compat.o
  CC      mm/fadvise.o
  CC      kernel/sched.o
  CC      block/genhd.o
  CC      kernel/fork.o
  CC      drivers/base/sys.o
  CC      block/scsi_ioctl.o
  CC      drivers/input/input-mt.o
  CC      mm/maccess.o
  CC      kernel/exec_domain.o
  CC      drivers/input/ff-core.o
  CC      block/noop-iosched.o
  CC      mm/page_alloc.o
  CC      kernel/panic.o
  CC      drivers/base/bus.o
  CC      lib/bcd.o
  CC      drivers/base/dd.o
  CC      drivers/base/syscore.o
  CC      drivers/input/mousedev.o
  CC      kernel/printk.o
  CC      drivers/base/driver.o
  CC      mm/page-writeback.o
  CC      lib/div64.o
  CC      drivers/base/class.o
  CC      drivers/video/fb_notify.o
  CC      mm/readahead.o
  CC      kernel/cpu.o
  CC      lib/sort.o
  CC      drivers/base/platform.o
  CC      mm/swap.o
  CC      lib/parser.o
  CC      kernel/exit.o
  CC      mm/truncate.o
  CC      drivers/base/cpu.o
  CC      kernel/itimer.o
  CC      lib/halfmd4.o
  CC      kernel/time.o
  CC      lib/debug_locks.o
  CC      kernel/softirq.o
  CC      mm/vmscan.o
  CC      drivers/base/firmware.o
  CC      lib/random32.o
  CC      kernel/resource.o
  CC      drivers/base/init.o
  CC      kernel/sysctl.o
  CC      lib/bust_spinlocks.o
  CC      mm/shmem.o
  CC      kernel/sysctl_binary.o
  CC      drivers/base/map.o
  CC      mm/prio_tree.o
  CC      lib/hexdump.o
  CC      mm/util.o
  CC      kernel/capability.o
  CC      fs/open.o
  CC      lib/kasprintf.o
  CC      mm/mmzone.o
  CC      drivers/tty/tty_io.o
  CC      drivers/base/devres.o
  CC      fs/read_write.o
  CC      kernel/ptrace.o
  CC      lib/bitmap.o
  CC      mm/vmstat.o
  CC      kernel/timer.o
  CC      fs/file_table.o
  CC      drivers/tty/tty_ioctl.o
  CC      kernel/user.o
  CC      mm/backing-dev.o
  CC      drivers/tty/n_tty.o
  CC      kernel/signal.o
  CC      drivers/base/attribute_container.o
  CC      fs/super.o
  CC      drivers/base/transport_class.o
  CC      drivers/tty/tty_ldisc.o
  CC      drivers/tty/tty_buffer.o
  CC      lib/scatterlist.o
  CC      lib/string_helpers.o
  CC      lib/gcd.o
  CC      fs/char_dev.o
  CC      fs/stat.o
  CC      lib/lcm.o
  CC      drivers/base/dma-mapping.o
  CC      lib/list_sort.o
  CC      lib/uuid.o
  CC      lib/flex_array.o
  CC      drivers/base/firmware_class.o
  CC      lib/kstrtox.o
  CC      lib/iomap.o
  CC      mm/page_isolation.o
  CC      mm/mm_init.o
  CC      kernel/sys.o
  CC      lib/iomap_copy.o
  CC      fs/exec.o
  CC      drivers/tty/tty_port.o
  CC      lib/devres.o
  CC      lib/find_last_bit.o
  CC      lib/hweight.o
  CC      lib/argv_split.o
  CC      lib/cmdline.o
  CC      lib/ctype.o
  CC      drivers/tty/tty_mutex.o
  CC      drivers/tty/pty.o
  AR      arch/cris/arch-v10/lib/lib.a
  CC      lib/dec_and_lock.o
  CC      mm/mmu_context.o
  CC      fs/pipe.o
  CC      fs/namei.o
  CC      mm/percpu.o
  CC      mm/fremap.o
  LD      arch/cris/mm/built-in.o
  CC      mm/highmem.o
  CC      kernel/kmod.o
  CC      fs/fcntl.o
  CC      mm/madvise.o
  CC      mm/memory.o
  CC      mm/mincore.o
  CC      kernel/workqueue.o
  CC      fs/ioctl.o
  CC      fs/readdir.o
  CC      fs/select.o
  CC      mm/mlock.o
  CC      lib/dump_stack.o
  CC      kernel/pid.o
  CC      fs/fifo.o
  CC      lib/extable.o
  CC      kernel/rcupdate.o
  CC      lib/find_next_bit.o
  CC      kernel/extable.o
  CC      lib/idr.o
  LD      arch/cris/arch-v10/mm/built-in.o
  CC      lib/int_sqrt.o
  CC      fs/dcache.o
  CC      drivers/tty/vt/vt_ioctl.o
  CC      lib/ioremap.o
  CC      lib/irq_regs.o
  CC      lib/is_single_threaded.o
  CC      mm/mmap.o
  LD      arch/cris/kernel/built-in.o
  CC      kernel/params.o
  CC      lib/klist.o
  CC      lib/kobject.o
  CC      mm/mprotect.o
  CC      lib/kobject_uevent.o
  CC      lib/kref.o
  CC      kernel/posix-timers.o
  LD      drivers/video/built-in.o
  CC      fs/inode.o
  CC      drivers/tty/vt/vc_screen.o
  CC      mm/mremap.o
  CC      lib/plist.o
  CC      kernel/kthread.o
  CC      fs/attr.o
  CC      lib/prio_heap.o
  LD      net/built-in.o
  CC      lib/prio_tree.o
  CC      mm/msync.o
  CC      lib/proportions.o
  CC      drivers/tty/vt/selection.o
  CC      fs/bad_inode.o
  CC      mm/rmap.o
  LD      arch/cris/arch-v10/kernel/built-in.o
/scratch/kisskb/src/kernel/fork.c: In function 'dup_task_struct':
/scratch/kisskb/src/kernel/fork.c:267: error: implicit declaration of function 'alloc_thread_info_node'
/scratch/kisskb/src/kernel/fork.c:267: warning: assignment makes pointer from integer without a cast
  CC      lib/radix-tree.o
  CC      lib/ratelimit.o
  CC      lib/rbtree.o
  CC      mm/vmalloc.o
  CC      mm/pagewalk.o
  CC      mm/pgtable-generic.o
  CC      fs/file.o
  CC      mm/init-mm.o
  CC      drivers/tty/vt/keyboard.o
  CC      lib/rwsem-spinlock.o
  CC      kernel/wait.o
  CC      lib/sha1.o
  CC      lib/show_mem.o
  CC      lib/string.o
  CC      fs/filesystems.o
  CC      fs/namespace.o
  CC      kernel/kfifo.o
  CC      drivers/tty/vt/consolemap.o
  CC      kernel/posix-cpu-timers.o
  CC      fs/seq_file.o
  CC      mm/bootmem.o
  CC      mm/bounce.o
  CC      mm/dmapool.o
  CC      fs/xattr.o
  CC      fs/libfs.o
  CC      mm/slub.o
  CC      drivers/tty/vt/vt.o
  CC      fs/fs-writeback.o
  CC      fs/pnode.o
  CC      lib/timerqueue.o
  CC      kernel/mutex.o
  CC      lib/vsprintf.o
  CC      drivers/tty/vt/defkeymap.o
  CC      fs/drop_caches.o
  CC      kernel/hrtimer.o
  CC      kernel/rwsem.o
  CC      fs/splice.o
make[2]: *** [kernel/fork.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      fs/sync.o
  CC      fs/utimes.o
  CC      fs/stack.o
  CC      fs/fs_struct.o
  CC      fs/statfs.o
  CC      fs/buffer.o
  CC      fs/bio.o
  CC      fs/block_dev.o
  CC      fs/direct-io.o
  CC      fs/mpage.o
  CC      fs/ioprio.o
  CC      fs/devpts/inode.o
  CC      fs/partitions/check.o
  CC      fs/partitions/msdos.o
  LD      security/built-in.o
  CC      fs/ramfs/inode.o
  CC      fs/eventpoll.o
  CC      fs/ramfs/file-mmu.o
  CC      fs/anon_inodes.o
  CC      fs/signalfd.o
  CC      fs/timerfd.o
  CC      fs/eventfd.o
  CC      fs/sysfs/inode.o
  CC      fs/sysfs/file.o
/scratch/kisskb/src/lib/iomap.c: In function 'ioread8_rep':
/scratch/kisskb/src/lib/iomap.c:197: warning: statement with no effect
/scratch/kisskb/src/lib/iomap.c: In function 'ioread16_rep':
/scratch/kisskb/src/lib/iomap.c:201: warning: statement with no effect
/scratch/kisskb/src/lib/iomap.c: In function 'ioread32_rep':
/scratch/kisskb/src/lib/iomap.c:205: warning: statement with no effect
  CC      fs/sysfs/dir.o
  CC      fs/aio.o
  CC      fs/sysfs/symlink.o
  CC      fs/sysfs/mount.o
  CC      fs/sysfs/bin.o
  CC      fs/sysfs/group.o
  CC      fs/locks.o
  CC      fs/binfmt_script.o
  LD      lib/built-in.o
  CC      fs/proc/mmu.o
  CC      fs/proc/task_mmu.o
  CC      fs/proc/inode.o
  CC      fs/proc/root.o
  CC      fs/proc/base.o
  CC      fs/proc/generic.o
  CC      fs/proc/array.o
  CC      fs/proc/proc_tty.o
  CC      fs/proc/cmdline.o
  CC      fs/proc/consoles.o
  CC      fs/proc/cpuinfo.o
  CC      fs/proc/devices.o
  CC      fs/proc/interrupts.o
  CC      fs/proc/loadavg.o
  CC      fs/proc/meminfo.o
  CC      fs/proc/stat.o
  CC      fs/proc/uptime.o
  CC      fs/proc/version.o
  CC      fs/proc/softirqs.o
  CC      fs/proc/proc_sysctl.o
  CC      fs/proc/kmsg.o
  CC      fs/proc/page.o
/scratch/kisskb/src/mm/bootmem.c: In function 'mark_bootmem':
/scratch/kisskb/src/mm/bootmem.c:354: warning: control reaches end of non-void function
  LD      drivers/base/built-in.o
  LD      drivers/char/built-in.o
  LD      fs/devpts/devpts.o
  LD      fs/devpts/built-in.o
  LD      drivers/input/input-core.o
  LD      drivers/input/built-in.o
  LD      fs/sysfs/built-in.o
  LD      fs/ramfs/ramfs.o
  LD      fs/ramfs/built-in.o
  LD      init/mounts.o
  LD      init/built-in.o
  LD      block/built-in.o
/scratch/kisskb/src/kernel/sched.c: In function 'pick_next_task':
/scratch/kisskb/src/kernel/sched.c:4069: warning: control reaches end of non-void function
  LD      fs/partitions/built-in.o
  LD      fs/proc/proc.o
  LD      fs/proc/built-in.o
  AR      lib/lib.a
make[1]: *** [kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
  LD      fs/built-in.o
  LD      mm/built-in.o
  LD      drivers/tty/vt/built-in.o
  LD      drivers/tty/built-in.o
  LD      drivers/built-in.o
make: *** [sub-make] Error 2
bisect failed 78fca1b95837a44983608302e89c7258981be9b3

# git bisect bad
Bisecting: 697 revisions left to test after this (roughly 10 steps)
[1b506cfb6ae63f352643d6e208c85c1351547036] Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
# < git symbolic-ref HEAD
fatal: ref HEAD is not a symbolic ref
Traceback (most recent call last):
  File "/scratch/kisskb/prod/kisskb/kisskb3/backend/backend.py", line 151, in _do_build
    self.bisect()
  File "/scratch/kisskb/prod/kisskb/kisskb3/backend/backend.py", line 228, in bisect
    current = self.current_head_revid()
  File "/scratch/kisskb/prod/kisskb/kisskb3/backend/backend.py", line 253, in current_head_revid
    ref = call_pipe('git symbolic-ref HEAD', self.log).strip()
  File "/scratch/kisskb/prod/kisskb/kisskb3/backend/utils.py", line 32, in call_pipe
    raise CommandFailedException(cmd, p.returncode)
CommandFailedException: Failed running "git symbolic-ref HEAD" (128)