# < 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 be6200aac985e0a3db56ec636763a32f3e32e7f1
Head not built, building
# < git reset --mixed
# git branch -D linus
Deleted branch linus (was be6200a).
# 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=i386 O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_i386-randconfig_i386 CROSS_COMPILE=/opt/crosstool/gcc-4.4.3-nolibc/i386-linux/bin/i386-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=i386 O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_i386-randconfig_i386 CROSS_COMPILE=/opt/crosstool/gcc-4.4.3-nolibc/i386-linux/bin/i386-linux-  randconfig
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
warning: (SCSI_SAS_LIBSAS && SCSI || SCSI_MPT2SAS && SCSI_LOWLEVEL && PCI && SCSI || FUSION_SAS && FUSION && PCI && SCSI) selects SCSI_SAS_ATTRS which has unmet direct dependencies (SCSI && BLK_DEV_BSG)
# /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=i386 O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_i386-randconfig_i386 CROSS_COMPILE=/opt/crosstool/gcc-4.4.3-nolibc/i386-linux/bin/i386-linux-  
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
  GEN     /scratch/kisskb/build/linus_i386-randconfig_i386/Makefile
scripts/kconfig/conf --silentoldconfig arch/x86/Kconfig
.config:416:warning: override: PCI_GOANY changes choice state
warning: (SCSI_SAS_LIBSAS && SCSI || SCSI_MPT2SAS && SCSI_LOWLEVEL && PCI && SCSI || FUSION_SAS && FUSION && PCI && SCSI) selects SCSI_SAS_ATTRS which has unmet direct dependencies (SCSI && BLK_DEV_BSG)
*
* Restart config...
*
*
* Processor type and features
*
Tickless System (Dynamic Ticks) (NO_HZ) [Y/n/?] y
High Resolution Timer Support (HIGH_RES_TIMERS) [Y/n/?] y
Symmetric multi-processing support (SMP) [N/y/?] n
Enable MPS table (X86_MPPARSE) [N/y/?] n
Support for extended (non-PC) x86 platforms (X86_EXTENDED_PLATFORM) [Y/n/?] y
AMD Elan (X86_ELAN) [Y/n/?] y
Moorestown MID platform (X86_MRST) [N/y/?] n
RDC R-321x SoC (X86_RDC321X) [N/y/?] n
Single-depth WCHAN output (SCHED_OMIT_FRAME_POINTER) [N/y/?] n
Disable Bootmem code (NO_BOOTMEM) [Y/n/?] y
Memtest (MEMTEST) [Y/n/?] y
HPET Timer Support (HPET_TIMER) [N/y/?] n
Preemption Model
  1. No Forced Preemption (Server) (PREEMPT_NONE)
> 2. Voluntary Kernel Preemption (Desktop) (PREEMPT_VOLUNTARY)
  3. Preemptible Kernel (Low-Latency Desktop) (PREEMPT)
choice[1-3]: 2
Local APIC support on uniprocessors (X86_UP_APIC) [Y/n/?] y
  IO-APIC support on uniprocessors (X86_UP_IOAPIC) [Y/n/?] y
Reroute for broken boot IRQs (X86_REROUTE_FOR_BROKEN_BOOT_IRQS) [N/y/?] n
Machine Check / overheating reporting (X86_MCE) [Y/n/?] y
  Intel MCE features (X86_MCE_INTEL) [Y/n/?] y
  AMD MCE features (X86_MCE_AMD) [N/y/?] n
  Support for old Pentium 5 / WinChip machine checks (X86_ANCIENT_MCE) [N/y/?] n
Machine check injector support (X86_MCE_INJECT) [N/m/y/?] n
Toshiba Laptop support (TOSHIBA) [N/m/y/?] n
Dell laptop support (I8K) [M/n/y/?] m
Enable X86 board specific fixups for reboot (X86_REBOOTFIXUPS) [Y/n/?] y
/dev/cpu/microcode - microcode support (MICROCODE) [N/m/y/?] n
/dev/cpu/*/msr - Model-specific register support (X86_MSR) [N/m/y/?] n
/dev/cpu/*/cpuid - CPU information support (X86_CPUID) [M/n/y/?] m
High Memory Support
  1. off (NOHIGHMEM)
> 2. 4GB (HIGHMEM4G)
  3. 64GB (HIGHMEM64G)
choice[1-3]: 2
Memory model
  1. Flat Memory (FLATMEM_MANUAL)
> 2. Sparse Memory (SPARSEMEM_MANUAL)
choice[1-2]: 2
Allow for memory hot-add (MEMORY_HOTPLUG) [N/y] (NEW) aborted!

Console input/output is redirected. Run 'make oldconfig' to update configuration.

make[3]: *** [silentoldconfig] Error 1
make[2]: *** [silentoldconfig] Error 2
make[1]: *** No rule to make target `include/config/auto.conf', needed by `include/config/kernel.release'.  Stop.
make: *** [sub-make] Error 2
make failed, trying to bisect ..
## bisect start
Last known good revision 2bfc96a127bc1cc94d26bfaa40159966064f9c8c
# < git symbolic-ref HEAD
# < git merge-base 2bfc96a127bc1cc94d26bfaa40159966064f9c8c be6200aac985e0a3db56ec636763a32f3e32e7f1

# < 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 2bfc96a127bc1cc94d26bfaa40159966064f9c8c
Bisecting: 199 revisions left to test after this (roughly 8 steps)
[c8c727db413e18414dc6ebc2cc4f18f390763e17] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Trying be6200aac985e0a3db56ec636763a32f3e32e7f1

# < /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=i386 O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_i386-randconfig_i386 CROSS_COMPILE=/opt/crosstool/gcc-4.4.3-nolibc/i386-linux/bin/i386-linux-  randconfig
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
warning: (CRYPTO_LRW && CRYPTO && EXPERIMENTAL || CRYPTO_XTS && CRYPTO && EXPERIMENTAL || CRYPTO_GHASH && CRYPTO) selects CRYPTO_GF128MUL which has unmet direct dependencies (EXPERIMENTAL)
# /scratch/kisskb/prod/kisskb/kisskb3/backend/makewrap.py ARCH=i386 O=/scratch/kisskb/prod/kisskb/kisskb3/backend/build/linus_i386-randconfig_i386 CROSS_COMPILE=/opt/crosstool/gcc-4.4.3-nolibc/i386-linux/bin/i386-linux-  
makewrap: Added ccache to CROSS_COMPILE
makewrap: Using -j factor 128
  GEN     /scratch/kisskb/build/linus_i386-randconfig_i386/Makefile
scripts/kconfig/conf --silentoldconfig arch/x86/Kconfig
warning: (CRYPTO_LRW && CRYPTO && EXPERIMENTAL || CRYPTO_XTS && CRYPTO && EXPERIMENTAL || CRYPTO_GHASH && CRYPTO) selects CRYPTO_GF128MUL which has unmet direct dependencies (EXPERIMENTAL)
*
* Restart config...
*
*
* Processor type and features
*
Tickless System (Dynamic Ticks) (NO_HZ) [N/y/?] n
High Resolution Timer Support (HIGH_RES_TIMERS) [N/y/?] n
Symmetric multi-processing support (SMP) [Y/n/?] y
Support for big SMP systems with more than 8 CPUs (X86_BIGSMP) [N/y/?] n
Support for extended (non-PC) x86 platforms (X86_EXTENDED_PLATFORM) [Y/n/?] y
AMD Elan (X86_ELAN) [N/y/?] n
RDC R-321x SoC (X86_RDC321X) [Y/n/?] y
Support non-standard 32-bit SMP architectures (X86_32_NON_STANDARD) [N/y/?] n
Single-depth WCHAN output (SCHED_OMIT_FRAME_POINTER) [Y/n/?] y
Disable Bootmem code (NO_BOOTMEM) [Y/n/?] y
Memtest (MEMTEST) [N/y/?] n
Processor family
  1. 386 (M386)
  2. 486 (M486)
  3. 586/K5/5x86/6x86/6x86MX (M586)
  4. Pentium-Classic (M586TSC)
  5. Pentium-MMX (M586MMX)
> 6. Pentium-Pro (M686)
  7. Pentium-II/Celeron(pre-Coppermine) (MPENTIUMII)
  8. Pentium-III/Celeron(Coppermine)/Pentium-III Xeon (MPENTIUMIII)
  9. Pentium M (MPENTIUMM)
  10. Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon (MPENTIUM4)
  11. K6/K6-II/K6-III (MK6)
  12. Athlon/Duron/K7 (MK7)
  13. Opteron/Athlon64/Hammer/K8 (MK8)
  14. Crusoe (MCRUSOE)
  15. Efficeon (MEFFICEON)
  16. Winchip-C6 (MWINCHIPC6)
  17. Winchip-2/Winchip-2A/Winchip-3 (MWINCHIP3D)
  18. GeodeGX1 (MGEODEGX1)
  19. Geode GX/LX (MGEODE_LX)
  20. CyrixIII/VIA-C3 (MCYRIXIII)
  21. VIA C3-2 (Nehemiah) (MVIAC3_2)
  22. VIA C7 (MVIAC7)
  23. Core 2/newer Xeon (MCORE2)
  24. Intel Atom (MATOM)
choice[1-24]: 6
Generic x86 support (X86_GENERIC) [Y/n/?] y
PentiumPro memory ordering errata workaround (X86_PPRO_FENCE) [N/y/?] (NEW) aborted!

Console input/output is redirected. Run 'make oldconfig' to update configuration.

make[3]: *** [silentoldconfig] Error 1
make[2]: *** [silentoldconfig] Error 2
make[1]: *** No rule to make target `include/config/auto.conf', needed by `include/config/kernel.release'.  Stop.
make: *** [sub-make] Error 2
bisect failed be6200aac985e0a3db56ec636763a32f3e32e7f1

# git bisect bad
Bisecting: 102 revisions left to test after this (roughly 7 steps)
[96d4cbb6a91af9d43db110eec1d8c61d41eb46b4] Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-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)