git-bisect run make -j64 kernel/ (was Re: git-bisect feature suggestion: "git-bisect diff")

Le samedi 8 décembre 2007, Ingo Molnar a écrit :

Currently, in the Linux kernel, if i do this:

 $ git-bisect run make -j64 kernel/

it fails with:

 running make -j64 kernel/
   CHK     include/linux/version.h
   CHK     include/linux/utsrelease.h
   CALL    scripts/checksyscalls.sh
 bisect run failed:
 bisect_good exited with error code 1

although the command "make -j64 kernel/" returns with 0.

i have to write a script around "make -j64 kernel/" to get this to work
- it would be nice to have this "out of box".

It seems to work for me. After creating a .config, I did:

$ git bisect good v2.6.23
$ git bisect bad HEAD
$ git bisect run make -j64 kernel/

Then I had to answer some configuration questions (I hit <enter>  everytime) 
but it run fine.

My git version is:

git version 1.5.3.7.2200.g9275-dirty

I attached the log (from git bisect log) and here is the end of the 
bisection:


Bisecting: 74 revisions left to test after this
[09f3eca2b7e2762e223fdd359f9d0f6303a85f6c] Merge branch 'for-2.6.24' of 
git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
running make -j64 kernel/
scripts/kconfig/conf -s arch/x86/Kconfig
#
# configuration written to .config
#
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CC      arch/x86/kernel/asm-offsets.s
  GEN     include/asm-x86/asm-offsets.h
  CALL    scripts/checksyscalls.sh
  CC      kernel/sched.o
  CC      kernel/fork.o
  CC      kernel/panic.o
  CC      kernel/printk.o
  CC      kernel/profile.o
  CC      kernel/exec_domain.o
  CC      kernel/exit.o
  CC      kernel/itimer.o
  CC      kernel/time.o
  CC      kernel/softirq.o
  CC      kernel/resource.o
  CC      kernel/sysctl.o
  CC      kernel/capability.o
  CC      kernel/ptrace.o
  CC      kernel/timer.o
  CC      kernel/user.o
  CC      kernel/signal.o
  CC      kernel/sys.o
  CC      kernel/kmod.o
  CC      kernel/user_namespace.o
  CC      kernel/pid.o
  CC      kernel/rcupdate.o
  CC      kernel/workqueue.o
  CC      kernel/params.o
  CC      kernel/posix-timers.o
  CC      kernel/kthread.o
  CC      kernel/kfifo.o
  CC      kernel/posix-cpu-timers.o
  CC      kernel/mutex.o
  CC      kernel/hrtimer.o
  CC      kernel/rwsem.o
  CC      kernel/latency.o
  CC      kernel/nsproxy.o
  CC      kernel/extable.o
  CC      kernel/wait.o
  CC      kernel/utsname.o
  CC      kernel/notifier.o
  CC      kernel/sysctl_check.o
  CC      kernel/futex.o
  CC      kernel/srcu.o
  CC      kernel/irq/handle.o
  CC      kernel/power/main.o
  CC      kernel/power/pm.o
  CC      kernel/time/timekeeping.o
  CC      kernel/power/process.o
  CC      kernel/irq/manage.o
  CC      kernel/time/ntp.o
  CC      kernel/irq/spurious.o
  CC      kernel/time/jiffies.o
  CC      kernel/time/clockevents.o
  CC      kernel/time/timer_list.o
  CC      kernel/time/tick-common.o
  CC      kernel/rtmutex.o
  CC      kernel/dma.o
  CC      kernel/cpu.o
  CC      kernel/power/console.o
  CC      kernel/irq/resend.o
  CC      kernel/power/poweroff.o
  CC      kernel/irq/chip.o
  CC      kernel/irq/devres.o
  CC      kernel/time/clocksource.o
  CC      kernel/time/tick-broadcast.o
  CC      kernel/irq/proc.o
  CC      kernel/irq/autoprobe.o
  CC      kernel/irq/migration.o
  CC      kernel/uid16.o
  CC      kernel/spinlock.o
  CC      kernel/module.o
  CC      kernel/acct.o
  CC      kernel/kexec.o
  CC      kernel/stop_machine.o
  CC      kernel/kallsyms.o
  CC      kernel/audit.o
  CC      kernel/auditfilter.o
  CC      kernel/ksysfs.o
kernel/power/pm.c:205: warning: 'pm_register' is deprecated (declared at 
kernel/power/pm.c:64)
kernel/power/pm.c:205: warning: 'pm_register' is deprecated (declared at 
kernel/power/pm.c:64)
kernel/power/pm.c:206: warning: 'pm_send_all' is deprecated (declared at 
kernel/power/pm.c:180)
kernel/power/pm.c:206: warning: 'pm_send_all' is deprecated (declared at 
kernel/power/pm.c:180)
  CC      kernel/utsname_sysctl.o
  LD      kernel/power/built-in.o
  LD      kernel/irq/built-in.o
  LD      kernel/time/built-in.o
  LD      kernel/built-in.o
Bisecting: 38 revisions left to test after this
[e17587b5b90da78f56c7a948e54dbac3dc791f31] Merge branch 'for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
running make -j64 kernel/
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
Bisecting: 17 revisions left to test after this
[c32bc6e9b0778c891f7f3b97cd05c8cdf98b6721] e1000: fix memcpy in 
e1000_get_strings
running make -j64 kernel/
scripts/kconfig/conf -s arch/x86/Kconfig
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
  CC      kernel/sched.o
  CC      kernel/hrtimer.o
  CC      kernel/time/clockevents.o
  LD      kernel/time/built-in.o
  LD      kernel/built-in.o
Bisecting: 8 revisions left to test after this
[4696c3c406a8b32112f8e1f70b3db1114950dcb1] ibm_newemac: Correct opb_bus_freq 
value
running make -j64 kernel/
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
Bisecting: 4 revisions left to test after this
[7962024e9d16e9349d76b553326f3fa7be64305e] S2io: Check for register 
initialization completion before accesing device registers
running make -j64 kernel/
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
Bisecting: 2 revisions left to test after this
[d1aa690a7d1afa673c3383bfcd6e96ddb350939a] ata_piix: add Toshiba Tecra M4 to 
broken suspend list
running make -j64 kernel/
scripts/kconfig/conf -s arch/x86/Kconfig
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
Bisecting: 1 revisions left to test after this
[459ad68893a84fb0881e57919340b97edbbc3dc7] libata: kill spurious NCQ 
completion detection
running make -j64 kernel/
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
94545baded0bfbabdc30a3a4cb48b3db479dd6ef is first bad commit
bisect run success

It found the HEAD as the first bad commit as expected, because I had no 
compilation error.

Christian.