# < 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 29a6ccca3869bbe33879dae0cd7df2a1559eff54
Head not built, building
# < git reset --mixed
# git branch -D linus
Deleted branch linus (was 29a6ccc).
# 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=xtensa O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/bin/xtensa-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=xtensa O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/bin/xtensa-linux-  defconfig
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
# /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=xtensa O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/bin/xtensa-linux-  
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
  GEN     /scratch/kisskb/build/linus_xtensa-defconfig_xtensa/Makefile
scripts/kconfig/conf --silentoldconfig Kconfig
  GEN     /scratch/kisskb/build/linus_xtensa-defconfig_xtensa/Makefile
  CHK     include/linux/version.h
make[2]: Nothing to be done for `all'.
  UPD     include/linux/version.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTLD  scripts/mod/modpost
  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
  CC      arch/xtensa/kernel/asm-offsets.s
In file included from /scratch/kisskb/src/arch/xtensa/kernel/asm-offsets.c:26:
/scratch/kisskb/src/arch/xtensa/include/asm/uaccess.h: In function '__generic_copy_to_user':
/scratch/kisskb/src/arch/xtensa/include/asm/uaccess.h:403: error: implicit declaration of function 'prefetch'
/scratch/kisskb/src/arch/xtensa/include/asm/uaccess.h: In function '__generic_copy_from_user':
/scratch/kisskb/src/arch/xtensa/include/asm/uaccess.h:412: error: implicit declaration of function 'prefetchw'
make[2]: *** [arch/xtensa/kernel/asm-offsets.s] Error 1
make[1]: *** [prepare0] Error 2
make: *** [sub-make] Error 2
make failed, trying to bisect ..
## bisect start
Last known good revision 0384e2959127a56d0640505d004d8dd92f9c29f5
# < git symbolic-ref HEAD
# < git merge-base 0384e2959127a56d0640505d004d8dd92f9c29f5 29a6ccca3869bbe33879dae0cd7df2a1559eff54

# < 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 0384e2959127a56d0640505d004d8dd92f9c29f5
Bisecting: 59400 revisions left to test after this (roughly 16 steps)
[fb091be08d1acf184e8801dfdcace6e0cb19b1fe] Merge branch 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
Trying 29a6ccca3869bbe33879dae0cd7df2a1559eff54

# < /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=xtensa O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/bin/xtensa-linux-  defconfig
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
# /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=xtensa O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/crosstool/gcc-4.3.3-nolibc/bin/xtensa-linux-  
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
  GEN     /scratch/kisskb/build/linus_xtensa-defconfig_xtensa/Makefile
scripts/kconfig/conf -s arch/xtensa/Kconfig
include/config/auto.conf:153:warning: symbol value '' invalid for CROSS_COMPILE
  GEN     /scratch/kisskb/build/linus_xtensa-defconfig_xtensa/Makefile
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  Using /scratch/kisskb/src as source for kernel
  HOSTCC  scripts/kallsyms
  CC      scripts/mod/empty.o
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTLD  scripts/mod/modpost
  CC      kernel/bounds.s
  GEN     include/generated/bounds.h
  CC      arch/xtensa/kernel/asm-offsets.s
  GEN     include/generated/asm-offsets.h
  CALL    /scratch/kisskb/src/scripts/checksyscalls.sh
<stdin>:395:2: warning: #warning syscall umount2 not implemented
<stdin>:1431:2: warning: #warning syscall sync_file_range not implemented
<stdin>:1463:2: warning: #warning syscall timerfd_create not implemented
<stdin>:1471:2: warning: #warning syscall fallocate not implemented
<stdin>:1475:2: warning: #warning syscall timerfd_settime not implemented
<stdin>:1479:2: warning: #warning syscall timerfd_gettime not implemented
<stdin>:1483:2: warning: #warning syscall signalfd4 not implemented
<stdin>:1487:2: warning: #warning syscall eventfd2 not implemented
<stdin>:1491:2: warning: #warning syscall epoll_create1 not implemented
<stdin>:1495:2: warning: #warning syscall dup3 not implemented
<stdin>:1499:2: warning: #warning syscall pipe2 not implemented
<stdin>:1503:2: warning: #warning syscall inotify_init1 not implemented
<stdin>:1507:2: warning: #warning syscall preadv not implemented
<stdin>:1511:2: warning: #warning syscall pwritev not implemented
<stdin>:1515:2: warning: #warning syscall rt_tgsigqueueinfo not implemented
<stdin>:1519:2: warning: #warning syscall perf_event_open not implemented
  CHK     include/generated/compile.h
  CC      init/main.o
  CC      init/do_mounts.o
  CC      init/noinitramfs.o
  UPD     include/generated/compile.h
  LD      usr/built-in.o
  CC      init/version.o
  AS      arch/xtensa/kernel/align.o
  AS      arch/xtensa/kernel/entry.o
  CC      arch/xtensa/kernel/irq.o
  AS      arch/xtensa/kernel/coprocessor.o
  CC      arch/xtensa/kernel/process.o
  CC      arch/xtensa/kernel/ptrace.o
  CC      arch/xtensa/kernel/setup.o
  CC      arch/xtensa/kernel/signal.o
  CC      arch/xtensa/kernel/syscall.o
  CC      arch/xtensa/kernel/time.o
  CC      arch/xtensa/kernel/traps.o
  AS      arch/xtensa/kernel/vectors.o
  CC      arch/xtensa/kernel/platform.o
  CC      arch/xtensa/kernel/pci-dma.o
  CC      arch/xtensa/kernel/init_task.o
  CC      arch/xtensa/kernel/io.o
  CC      arch/xtensa/kernel/pci.o
  AS      arch/xtensa/kernel/head.o
  LDS     arch/xtensa/kernel/vmlinux.lds
  CC      arch/xtensa/mm/init.o
  CC      arch/xtensa/mm/cache.o
  AS      arch/xtensa/mm/misc.o
  CC      arch/xtensa/mm/fault.o
  CC      arch/xtensa/mm/mmu.o
  CC      arch/xtensa/mm/tlb.o
  CC      kernel/sched.o
  CC      kernel/fork.o
/scratch/kisskb/src/arch/xtensa/kernel/entry.S: Assembler messages:
/scratch/kisskb/src/arch/xtensa/kernel/entry.S:1544: Warning: value 0xffffffff30000000 truncated to 0x30000000
  CC      kernel/exec_domain.o
  CC      kernel/panic.o
  CC      arch/xtensa/platforms/iss/io.o
  CC      arch/xtensa/platforms/iss/console.o
  CC      kernel/printk.o
  CC      arch/xtensa/platforms/iss/setup.o
  CC      kernel/cpu.o
  CC      arch/xtensa/platforms/iss/network.o
  CC      kernel/exit.o
  CC      kernel/itimer.o
  TIMEC   kernel/timeconst.h
  CC      kernel/softirq.o
  CC      kernel/resource.o
  CC      mm/bootmem.o
  CC      kernel/sysctl.o
  CC      mm/filemap.o
  CC      kernel/sysctl_binary.o
  CC      mm/mempool.o
  CC      kernel/capability.o
  CC      mm/oom_kill.o
  CC      kernel/ptrace.o
  CC      mm/fadvise.o
  CC      kernel/timer.o
  CC      mm/maccess.o
  CC      kernel/user.o
  CC      mm/page_alloc.o
  CC      kernel/signal.o
  CC      kernel/sys.o
  CC      mm/page-writeback.o
  CC      mm/readahead.o
  CC      kernel/kmod.o
  CC      mm/swap.o
  CC      kernel/workqueue.o
  CC      mm/truncate.o
  CC      kernel/pid.o
  CC      kernel/rcupdate.o
  CC      mm/vmscan.o
  CC      kernel/extable.o
  CC      mm/shmem.o
  CC      mm/prio_tree.o
  CC      kernel/params.o
  CC      kernel/posix-timers.o
  CC      mm/util.o
  CC      kernel/kthread.o
  CC      mm/mmzone.o
  CC      mm/vmstat.o
  CC      kernel/wait.o
  CC      kernel/kfifo.o
  CC      mm/backing-dev.o
  CC      kernel/sys_ni.o
  CC      kernel/posix-cpu-timers.o
  CC      kernel/mutex.o
  CC      kernel/hrtimer.o
  CC      kernel/rwsem.o
  CC      mm/page_isolation.o
  CC      kernel/nsproxy.o
  CC      mm/mm_init.o
  CC      mm/mmu_context.o
  CC      kernel/srcu.o
  CC      mm/fremap.o
  CC      kernel/semaphore.o
  CC      kernel/notifier.o
  CC      mm/highmem.o
  CC      kernel/ksysfs.o
  CC      mm/madvise.o
  CC      mm/memory.o
  CC      kernel/pm_qos_params.o
  CC      mm/mincore.o
  CC      mm/mlock.o
  CC      kernel/sched_clock.o
  CC      ipc/util.o
  CC      mm/mmap.o
  CC      kernel/cred.o
  CC      mm/mprotect.o
  CC      ipc/msgutil.o
  CC      kernel/async.o
  CC      kernel/range.o
  CC      mm/mremap.o
  CC      kernel/groups.o
  CC      fs/open.o
  CC      ipc/msg.o
  CC      fs/read_write.o
  CC      mm/msync.o
  CC      fs/file_table.o
  CC      mm/rmap.o
  CC      ipc/sem.o
  CC      fs/super.o
  CC      mm/vmalloc.o
  CC      ipc/shm.o
  CC      fs/char_dev.o
  CC      kernel/irq/handle.o
  CC      fs/stat.o
  CC      kernel/futex.o
  CC      ipc/ipcns_notifier.o
  CC      kernel/irq/manage.o
  CC      mm/pagewalk.o
  CC      mm/init-mm.o
  CC      ipc/syscall.o
  CC      fs/exec.o
  CC      ipc/ipc_sysctl.o
  CC      kernel/time/timekeeping.o
  CC      mm/bounce.o
  CC      kernel/irq/spurious.o
  CC      fs/pipe.o
  CC      kernel/rtmutex.o
  CC      security/commoncap.o
  CC      kernel/up.o
In file included from /scratch/kisskb/src/include/asm-generic/tlb.h:18,
                 from /scratch/kisskb/src/arch/xtensa/include/asm/tlb.h:44,
                 from /scratch/kisskb/src/arch/xtensa/mm/cache.c:31:
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h: In function 'pte_alloc_one_kernel':
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h:47: error: implicit declaration of function 'kmem_cache_alloc'
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h:47: warning: return makes pointer from integer without a cast
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h: In function 'pte_free_kernel':
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h:62: error: implicit declaration of function 'kmem_cache_free'
make[2]: *** [arch/xtensa/mm/cache.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      kernel/kallsyms.o
  CC      security/min_addr.o
  CC      kernel/irq/resend.o
  CC      kernel/irq/chip.o
  CC      mm/page_io.o
In file included from /scratch/kisskb/src/arch/xtensa/mm/fault.c:24:
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h: In function 'pte_alloc_one_kernel':
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h:47: error: implicit declaration of function 'kmem_cache_alloc'
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h:47: warning: return makes pointer from integer without a cast
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h: In function 'pte_free_kernel':
/scratch/kisskb/src/arch/xtensa/include/asm/pgalloc.h:62: error: implicit declaration of function 'kmem_cache_free'
make[2]: *** [arch/xtensa/mm/fault.o] Error 1
  CC      mm/swap_state.o
/scratch/kisskb/src/arch/xtensa/kernel/pci.c: In function 'pcibios_align_resource':
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:83: warning: format '%ld' expects type 'long int', but argument 4 has type 'resource_size_t'
/scratch/kisskb/src/arch/xtensa/kernel/pci.c: In function '__pci_mmap_set_pgprot':
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:361: error: '_PAGE_NO_CACHE' undeclared (first use in this function)
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:361: error: (Each undeclared identifier is reported only once
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:361: error: for each function it appears in.)
make[2]: *** [arch/xtensa/kernel/pci.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/readahead.c:15:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      mm/swapfile.o
In file included from /scratch/kisskb/src/mm/readahead.c:15:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/arch/xtensa/platforms/iss/setup.c:26:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/arch/xtensa/platforms/iss/setup.c:26:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      mm/thrash.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/page_alloc.c:30:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [mm/readahead.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      kernel/softlockup.o
  CC      kernel/time/ntp.o
In file included from /scratch/kisskb/src/mm/page_alloc.c:30:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/kernel/fork.c:62:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c: In function 'iss_net_configure':
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:690: error: 'struct net_device' has no member named 'open'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:691: error: 'struct net_device' has no member named 'hard_start_xmit'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:692: error: 'struct net_device' has no member named 'stop'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:693: error: 'struct net_device' has no member named 'get_stats'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:694: error: 'struct net_device' has no member named 'set_multicast_list'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:695: error: 'struct net_device' has no member named 'tx_timeout'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:696: error: 'struct net_device' has no member named 'set_mac_address'
/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c:697: error: 'struct net_device' has no member named 'change_mtu'
In file included from /scratch/kisskb/src/kernel/fork.c:62:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/filemap.c:30:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      kernel/hung_task.o
In file included from /scratch/kisskb/src/mm/filemap.c:30:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      kernel/rcutree.o
make[2]: *** [mm/page_alloc.o] Error 1
  CC      kernel/utsname_sysctl.o
  CC      kernel/elfcore.o
  CC      kernel/time.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/kernel/exit.c:45:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
/scratch/kisskb/src/arch/xtensa/kernel/time.c:42: warning: initialization from incompatible pointer type
In file included from /scratch/kisskb/src/kernel/exit.c:45:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [arch/xtensa/platforms/iss/setup.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      kernel/time/clocksource.o
  CC      kernel/irq/devres.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/page-writeback.c:26:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/mm/page-writeback.c:26:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      kernel/irq/proc.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/kernel/sched.c:48:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      fs/namei.o
In file included from /scratch/kisskb/src/kernel/sched.c:48:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/mempool.c:15:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      crypto/api.o
  CC      fs/fcntl.o
  CC      kernel/time/jiffies.o
  CC      kernel/time/timer_list.o
  CC      fs/ioctl.o
make[2]: *** [mm/filemap.o] Error 1
In file included from /scratch/kisskb/src/mm/mempool.c:15:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      fs/readdir.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/vmscan.c:25:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/mm/vmscan.c:25:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [mm/page-writeback.o] Error 1
  CC      kernel/time/timecompare.o
  CC      fs/select.o
make[2]: *** [mm/vmscan.o] Error 1
  CC      crypto/cipher.o
  CC      kernel/time/timeconv.o
  CC      crypto/compress.o
  CC      crypto/algapi.o
  CC      crypto/scatterwalk.o
  CC      crypto/proc.o
  CC      crypto/aes_generic.o
In file included from /scratch/kisskb/src/mm/highmem.c:22:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [kernel/fork.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      fs/fifo.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/init/do_mounts.h:2,
                 from /scratch/kisskb/src/init/do_mounts.c:24:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      crypto/rng.o
make[2]: *** [kernel/sched.o] Error 1
In file included from /scratch/kisskb/src/init/do_mounts.h:2,
                 from /scratch/kisskb/src/init/do_mounts.c:24:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      crypto/krng.o
  CC      crypto/ansi_cprng.o
In file included from /scratch/kisskb/src/mm/highmem.c:25:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [mm/mempool.o] Error 1
make[2]: *** [mm/highmem.o] Error 1
make[2]: *** [init/do_mounts.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      fs/dcache.o
  CC      fs/inode.o
make[2]: *** [kernel/exit.o] Error 1
  CC      fs/attr.o
In file included from /scratch/kisskb/src/include/linux/elf.h:7,
                 from /scratch/kisskb/src/kernel/elfcore.c:1:
/scratch/kisskb/src/arch/xtensa/include/asm/elf.h:179:5: warning: "XTENSA_HAVE_COPROCESSORS" is not defined
In file included from /scratch/kisskb/src/arch/xtensa/include/asm/elf.h:17,
                 from /scratch/kisskb/src/include/linux/elf.h:8,
                 from /scratch/kisskb/src/kernel/elfcore.c:2:
/scratch/kisskb/src/arch/xtensa/include/asm/ptrace.h:103: error: expected specifier-qualifier-list before 'xtregs_opt_t'
In file included from /scratch/kisskb/src/include/linux/elf.h:8,
                 from /scratch/kisskb/src/kernel/elfcore.c:2:
/scratch/kisskb/src/arch/xtensa/include/asm/elf.h:177: error: expected specifier-qualifier-list before 'xtregs_opt_t'
make[2]: *** [kernel/elfcore.o] Error 1
  CC      fs/bad_inode.o
  CC      fs/file.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/shmem.c:52:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      fs/filesystems.o
  CC      fs/namespace.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/mm/swapfile.c:18:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/mm/swapfile.c:18:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      fs/seq_file.o
In file included from /scratch/kisskb/src/mm/shmem.c:52:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      block/elevator.o
  CC      fs/xattr.o
/scratch/kisskb/src/kernel/irq/handle.c:432:3: warning: #warning __do_IRQ is deprecated. Please convert to proper flow handlers
  CC      block/blk-core.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/fs/super.c:28:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      block/blk-tag.o
In file included from /scratch/kisskb/src/fs/super.c:28:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      fs/libfs.o
make[2]: *** [mm/swapfile.o] Error 1
  CC      fs/fs-writeback.o
  CC      block/blk-sysfs.o
  CC      block/blk-barrier.o
  LD      sound/built-in.o
  CC      block/blk-settings.o
  CC      block/blk-ioc.o
  CC      fs/pnode.o
In file included from /scratch/kisskb/src/mm/bounce.c:10:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      block/blk-map.o
  CC      fs/drop_caches.o
  CC      block/blk-exec.o
  CC      fs/splice.o
  CC      fs/sync.o
In file included from /scratch/kisskb/src/mm/bounce.c:13:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/auxdisplay/built-in.o
  LD      firmware/built-in.o
  CC      fs/utimes.o
make[2]: *** [mm/bounce.o] Error 1
  CC      drivers/base/core.o
  CC      fs/stack.o
  CC      block/blk-merge.o
  CC      fs/fs_struct.o
make[2]: *** [fs/super.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from /scratch/kisskb/src/mm/page_io.c:18:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/base/sys.o
  LD      drivers/block/built-in.o
  LD      drivers/cdrom/built-in.o
  CC      block/blk-softirq.o
In file included from /scratch/kisskb/src/block/blk-tag.c:6:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      block/blk-timeout.o
  CC      drivers/char/mem.o
  CC      block/blk-iopoll.o
  LD      drivers/clocksource/built-in.o
In file included from /scratch/kisskb/src/block/blk-tag.c:7:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [mm/page_io.o] Error 1
  CC      block/ioctl.o
make[2]: *** [block/blk-tag.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      drivers/char/random.o
  LD      drivers/firmware/built-in.o
  LD      drivers/crypto/built-in.o
  CC      drivers/char/tty_io.o
In file included from /scratch/kisskb/src/block/blk-core.c:17:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/gpio/built-in.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/block/elevator.c:27:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/elevator.c:27:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/hid/hid-core.o
In file included from /scratch/kisskb/src/block/blk-core.c:18:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/hwmon/hwmon.o
  LD      drivers/idle/built-in.o
/scratch/kisskb/src/block/blk-core.c:2350:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/i2c/algos/built-in.o
  LD      drivers/gpu/drm/i2c/built-in.o
  LD      drivers/ieee1394/built-in.o
make[2]: *** [block/blk-core.o] Error 1
  LD      drivers/gpu/drm/built-in.o
  LD      drivers/i2c/busses/built-in.o
  LD      drivers/ieee802154/built-in.o
  CC      drivers/gpu/vga/vgaarb.o
make[2]: *** [mm/shmem.o] Error 1
  CC      drivers/hid/hid-input.o
  LD      drivers/i2c/built-in.o
  CC      drivers/base/bus.o
  CC      drivers/char/n_tty.o
In file included from /scratch/kisskb/src/block/blk-exec.c:6:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/lguest/built-in.o
  LD      drivers/macintosh/built-in.o
  CC      drivers/base/dd.o
  CC      drivers/input/input.o
In file included from /scratch/kisskb/src/block/blk-settings.c:7:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-merge.c:6:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      kernel/irq/built-in.o
  CC      drivers/char/tty_ioctl.o
  CC      drivers/input/input-compat.o
In file included from /scratch/kisskb/src/block/blk-settings.c:8:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-merge.c:7:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/input/ff-core.o
In file included from /scratch/kisskb/src/block/blk-exec.c:7:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/mfd/built-in.o
  CC      drivers/char/tty_ldisc.o
make[1]: *** [arch/xtensa/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      drivers/char/tty_buffer.o
make[2]: *** [block/blk-merge.o] Error 1
make[2]: *** [block/blk-settings.o] Error 1
  LD      drivers/media/IR/keymaps/built-in.o
  CC      drivers/net/Space.o
  LD      drivers/media/common/tuners/built-in.o
  LD      drivers/misc/cb710/built-in.o
  LD      drivers/media/IR/built-in.o
In file included from /scratch/kisskb/src/block/blk-sysfs.c:7:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/block/blk-timeout.c:6:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/media/common/built-in.o
In file included from /scratch/kisskb/src/block/blk-timeout.c:6:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-sysfs.c:8:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/net/loopback.o
  LD      drivers/media/video/built-in.o
  CC      drivers/char/tty_port.o
make[2]: *** [block/blk-sysfs.o] Error 1
  LD      drivers/misc/eeprom/built-in.o
  LD      drivers/media/built-in.o
  LD      drivers/net/wireless/built-in.o
make[2]: *** [block/elevator.o] Error 1
make[2]: *** [block/blk-timeout.o] Error 1
  CC      drivers/base/driver.o
  LD      drivers/misc/built-in.o
  CC      drivers/pci/access.o
  CC      drivers/base/class.o
In file included from /scratch/kisskb/src/block/blk-barrier.c:6:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/platform/built-in.o
  CC      drivers/base/platform.o
  CC      drivers/base/cpu.o
  CC      drivers/pci/bus.o
In file included from /scratch/kisskb/src/block/blk-iopoll.c:8:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-barrier.c:7:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-iopoll.c:9:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [block/blk-exec.o] Error 1
  CC      drivers/char/pty.o
  CC      drivers/char/misc.o
make[2]: *** [block/blk-barrier.o] Error 1
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/fs/fs-writeback.c:26:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/char/vt_ioctl.o
  LD      drivers/serial/built-in.o
make[2]: *** [block/blk-iopoll.o] Error 1
In file included from /scratch/kisskb/src/fs/fs-writeback.c:26:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/char/vc_screen.o
/scratch/kisskb/src/arch/xtensa/kernel/process.c: In function 'copy_thread':
/scratch/kisskb/src/arch/xtensa/kernel/process.c:180: warning: unused variable 'ti'
  CC      drivers/base/firmware.o
  CC      drivers/char/selection.o
make[2]: *** [fs/fs-writeback.o] Error 1
  CC      drivers/char/keyboard.o
  LD      drivers/usb/early/built-in.o
  CC      drivers/video/fb_notify.o
  CC      drivers/pci/probe.o
  CC      drivers/usb/host/pci-quirks.o
  CC      drivers/char/consolemap.o
  CC      drivers/base/init.o
  CC      drivers/pci/remove.o
  CC      drivers/pci/pci.o
  LD      drivers/video/backlight/built-in.o
In file included from /scratch/kisskb/src/include/linux/blkdev.h:16,
                 from /scratch/kisskb/src/block/ioctl.c:2:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/video/console/dummycon.o
In file included from /scratch/kisskb/src/block/ioctl.c:2:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/pci/pci-driver.o
  CONMK   drivers/char/consolemap_deftbl.c
  CC      drivers/char/vt.o
  SHIPPED drivers/char/defkeymap.c
  CC      drivers/char/consolemap_deftbl.o
  CC      drivers/base/map.o
  CC      drivers/char/hw_random/core.o
  CC      drivers/base/devres.o
  CC      drivers/base/attribute_container.o
make[2]: *** [block/ioctl.o] Error 1
  LD      drivers/video/display/built-in.o
  CC      drivers/base/transport_class.o
In file included from /scratch/kisskb/src/block/blk-map.c:6:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-ioc.c:7:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  LD      drivers/video/omap2/displays/built-in.o
  LD      drivers/base/power/built-in.o
  CC      drivers/base/dma-mapping.o
In file included from /scratch/kisskb/src/block/blk-map.c:7:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  CC      drivers/watchdog/softdog.o
make[2]: *** [block/blk-map.o] Error 1
  CC      drivers/char/defkeymap.o
  CC      drivers/pci/search.o
  LD      drivers/video/omap2/dss/built-in.o
  LD      drivers/video/omap2/omapfb/built-in.o
  CC      drivers/pci/pci-sysfs.o
  CC      drivers/pci/rom.o
  LD      drivers/video/omap2/built-in.o
  CC      drivers/pci/setup-res.o
  CC      drivers/pci/irq.o
  CC      drivers/pci/vpd.o
In file included from /scratch/kisskb/src/block/blk-ioc.c:8:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [block/blk-ioc.o] Error 1
  CC      drivers/pci/proc.o
  CC      drivers/pci/slot.o
  CC      drivers/pci/quirks.o
In file included from /scratch/kisskb/src/block/blk-softirq.c:7:
/scratch/kisskb/src/include/linux/bio.h:396:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/bio.h:398:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
In file included from /scratch/kisskb/src/block/blk-softirq.c:8:
/scratch/kisskb/src/include/linux/blkdev.h:758:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:760:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
make[2]: *** [block/blk-softirq.o] Error 1
make[1]: *** [block] Error 2
  LD      drivers/hwmon/built-in.o
make[2]: *** [arch/xtensa/platforms/iss/network.o] Error 1
make[1]: *** [arch/xtensa/kernel] Error 2
  LD      crypto/crypto.o
  LD      crypto/crypto_algapi.o
  LD      drivers/usb/host/built-in.o
  LD      drivers/usb/built-in.o
  LD      drivers/net/built-in.o
make[1]: *** [arch/xtensa/platforms/iss] Error 2
  LD      drivers/video/console/built-in.o
  LD      drivers/video/built-in.o
  LD      ipc/built-in.o
  LD      kernel/time/built-in.o
  LD      drivers/watchdog/built-in.o
  LD      security/built-in.o
  LD      drivers/base/built-in.o
  LD      drivers/char/hw_random/rng-core.o
  LD      drivers/char/hw_random/built-in.o
make[1]: *** [init] Error 2
  LD      drivers/gpu/vga/built-in.o
  LD      drivers/gpu/built-in.o
  LD      drivers/input/input-core.o
  LD      drivers/input/built-in.o
  LD      crypto/built-in.o
make[1]: *** [kernel] Error 2
  LD      drivers/pci/built-in.o
make[1]: *** [fs] Error 2
  LD      drivers/hid/hid.o
  LD      drivers/hid/built-in.o
make[1]: *** [mm] Error 2
  LD      drivers/char/built-in.o
  LD      drivers/built-in.o
make[1]: *** wait: No child processes.  Stop.
make: *** [sub-make] Error 2
bisect failed 29a6ccca3869bbe33879dae0cd7df2a1559eff54

# git bisect bad
Bisecting: 29863 revisions left to test after this (roughly 15 steps)
[fa877c71e2136bd682b45022c96d5e073ced9f58] Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
# < 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)