# < 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 7e27d6e778cd87b6f2415515d7127eba53fe5d02
Head not built, building
# < git reset --mixed
# git branch -D linus
Deleted branch linus (was 7e27d6e).
# 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 distcc to CROSS_COMPILE
makewrap: Distcc hosts = sprygo/32 localhost/32
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 distcc to CROSS_COMPILE
makewrap: Distcc hosts = sprygo/32 localhost/32
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 distcc to CROSS_COMPILE
makewrap: Distcc hosts = sprygo/32 localhost/32
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
  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
  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
  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
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
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:762:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:764:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
distcc[17530] ERROR: compile /scratch/kisskb/src/init/do_mounts.c on sprygo/32 failed
distcc[17530] (dcc_build_somewhere) Warning: remote compilation of '/scratch/kisskb/src/init/do_mounts.c' failed, retrying locally
distcc[17530] Warning: failed to distribute /scratch/kisskb/src/init/do_mounts.c to sprygo/32, running locally instead
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
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:762:3: error: #error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
/scratch/kisskb/src/include/linux/blkdev.h:764:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
distcc[17530] ERROR: compile /scratch/kisskb/src/init/do_mounts.c on localhost failed
make[2]: *** [init/do_mounts.o] Error 1
make[1]: *** [init] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [sub-make] Error 2
make: INTERNAL: Exiting with 129 jobserver tokens available; should be 128!
make failed, trying to bisect ..
## bisect start
Last known good revision 0384e2959127a56d0640505d004d8dd92f9c29f5
# < git symbolic-ref HEAD
# < git merge-base 0384e2959127a56d0640505d004d8dd92f9c29f5 7e27d6e778cd87b6f2415515d7127eba53fe5d02

# < 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: 33389 revisions left to test after this (roughly 15 steps)
[4d80d7210bb5a36a18978d1305b44375ecb857d9] iwlwifi: set default aggregation frame count limit to 31
Trying 7e27d6e778cd87b6f2415515d7127eba53fe5d02

# < /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 distcc to CROSS_COMPILE
makewrap: Distcc hosts = sprygo/32 localhost/32
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 distcc to CROSS_COMPILE
makewrap: Distcc hosts = sprygo/32 localhost/32
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:147:warning: symbol value '' invalid for DEFAULT_SECURITY
include/config/auto.conf:165: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/linux/utsrelease.h
  UPD     include/linux/utsrelease.h
  SYMLINK include/asm -> include/asm-xtensa
  Using /scratch/kisskb/src as source for kernel
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      kernel/bounds.s
  GEN     include/linux/bounds.h
  CC      arch/xtensa/kernel/asm-offsets.s
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/sumversion.o
  GEN     include/asm/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
  HOSTLD  scripts/mod/modpost
  CHK     include/linux/compile.h
  CC      init/main.o
  CC      init/do_mounts.o
  CC      init/noinitramfs.o
  UPD     include/linux/compile.h
  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/mm/init.o
  CC      arch/xtensa/kernel/io.o
  CC      arch/xtensa/mm/cache.o
  AS      arch/xtensa/mm/misc.o
  CC      arch/xtensa/kernel/pci.o
  AS      arch/xtensa/kernel/head.o
  CC      arch/xtensa/mm/fault.o
  CC      arch/xtensa/mm/mmu.o
  CC      arch/xtensa/mm/tlb.o
  LDS     arch/xtensa/kernel/vmlinux.lds
/scratch/kisskb/src/arch/xtensa/kernel/time.c:41: warning: initialization from incompatible pointer type
/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'
/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      arch/xtensa/platforms/iss/io.o
  CC      arch/xtensa/platforms/iss/console.o
  CC      arch/xtensa/platforms/iss/setup.o
  CC      arch/xtensa/platforms/iss/network.o
distcc[18594] ERROR: compile /scratch/kisskb/src/arch/xtensa/kernel/pci.c on sprygo/32 failed
distcc[18594] (dcc_build_somewhere) Warning: remote compilation of '/scratch/kisskb/src/arch/xtensa/kernel/pci.c' failed, retrying locally
distcc[18594] Warning: failed to distribute /scratch/kisskb/src/arch/xtensa/kernel/pci.c to sprygo/32, running locally instead
/scratch/kisskb/src/arch/xtensa/kernel/pci.c: In function 'pcibios_align_resource':
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:84: 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:362: error: '_PAGE_NO_CACHE' undeclared (first use in this function)
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:362: error: (Each undeclared identifier is reported only once
/scratch/kisskb/src/arch/xtensa/kernel/pci.c:362: error: for each function it appears in.)
distcc[18594] ERROR: compile /scratch/kisskb/src/arch/xtensa/kernel/pci.c on localhost failed
make[2]: *** [arch/xtensa/kernel/pci.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      kernel/sched.o
  CC      kernel/fork.o
  CC      kernel/exec_domain.o
  CC      kernel/panic.o
  CC      kernel/printk.o
  CC      kernel/cpu.o
  CC      kernel/exit.o
  CC      kernel/itimer.o
  TIMEC   kernel/timeconst.h
  CC      kernel/softirq.o
  CC      kernel/resource.o
  CC      kernel/sysctl.o
  CC      kernel/capability.o
  CC      mm/bootmem.o
  CC      kernel/ptrace.o
  CC      mm/filemap.o
  CC      kernel/timer.o
  CC      mm/mempool.o
  CC      kernel/user.o
  CC      mm/oom_kill.o
  CC      mm/fadvise.o
  CC      kernel/signal.o
  CC      mm/maccess.o
  CC      kernel/sys.o
  CC      kernel/kmod.o
  CC      mm/page_alloc.o
  CC      mm/page-writeback.o
  CC      kernel/workqueue.o
  CC      mm/readahead.o
  CC      kernel/pid.o
  CC      mm/swap.o
  CC      kernel/rcupdate.o
  CC      mm/truncate.o
  CC      kernel/extable.o
  CC      mm/vmscan.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      mm/page_isolation.o
  CC      mm/mm_init.o
  CC      kernel/posix-cpu-timers.o
  CC      kernel/mutex.o
  CC      mm/mmu_context.o
  CC      kernel/hrtimer.o
  CC      kernel/rwsem.o
  LD      init/mounts.o
  CC      mm/fremap.o
  CC      kernel/nsproxy.o
  CC      kernel/srcu.o
  CC      mm/highmem.o
  CC      kernel/semaphore.o
  CC      mm/madvise.o
  CC      kernel/notifier.o
  CC      mm/memory.o
  CC      kernel/ksysfs.o
  CC      mm/mincore.o
  CC      kernel/pm_qos_params.o
distcc[18746] ERROR: compile /scratch/kisskb/src/arch/xtensa/platforms/iss/network.c on sprygo/32 failed
distcc[18746] (dcc_build_somewhere) Warning: remote compilation of '/scratch/kisskb/src/arch/xtensa/platforms/iss/network.c' failed, retrying locally
distcc[18746] Warning: failed to distribute /scratch/kisskb/src/arch/xtensa/platforms/iss/network.c to sprygo/32, running locally instead
  CC      mm/mlock.o
  LD      arch/xtensa/mm/built-in.o
  CC      kernel/sched_clock.o
  CC      mm/mmap.o
  CC      kernel/cred.o
  CC      mm/mprotect.o
  CC      kernel/async.o
  CC      mm/mremap.o
  CC      kernel/groups.o
  CC      mm/msync.o
  CC      mm/rmap.o
  CC      kernel/futex.o
  CC      mm/vmalloc.o
  CC      kernel/irq/handle.o
  CC      mm/pagewalk.o
  CC      kernel/rtmutex.o
  CC      kernel/time/timekeeping.o
  CC      kernel/irq/manage.o
  CC      kernel/up.o
  CC      mm/init-mm.o
  CC      kernel/irq/spurious.o
  CC      kernel/time/ntp.o
  CC      kernel/time/clocksource.o
  CC      mm/bounce.o
  CC      kernel/kallsyms.o
  CC      mm/page_io.o
  CC      kernel/irq/resend.o
  CC      kernel/time/jiffies.o
  CC      kernel/softlockup.o
  CC      kernel/time/timer_list.o
  CC      mm/swap_state.o
  CC      kernel/irq/chip.o
  CC      kernel/time/timecompare.o
  CC      kernel/hung_task.o
  CC      mm/swapfile.o
  CC      kernel/irq/devres.o
  CC      kernel/time/timeconv.o
  CC      kernel/irq/proc.o
  CC      kernel/rcutree.o
  CC      mm/thrash.o
  CC      kernel/utsname_sysctl.o
  CC      mm/dmapool.o
  CC      mm/slub.o
  CC      kernel/time.o
/scratch/kisskb/src/kernel/irq/handle.c:436:3: warning: #warning __do_IRQ is deprecated. Please convert to proper flow handlers
make[1]: *** [arch/xtensa/kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
  LD      kernel/irq/built-in.o
  LD      kernel/time/built-in.o
  LD      init/built-in.o
/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'
distcc[18746] ERROR: compile /scratch/kisskb/src/arch/xtensa/platforms/iss/network.c on localhost failed
make[2]: *** [arch/xtensa/platforms/iss/network.o] Error 1
make[1]: *** [arch/xtensa/platforms/iss] Error 2
  LD      kernel/built-in.o
  LD      mm/built-in.o
make[1]: *** wait: No child processes.  Stop.
make: *** [sub-make] Error 2
bisect failed 7e27d6e778cd87b6f2415515d7127eba53fe5d02

# git bisect bad
Bisecting: 16170 revisions left to test after this (roughly 14 steps)
[9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/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)