[SOLVED] Error 'Your source tree might be broken' in kernel26zen-git

Marcel- · 2010-08-02 21:19:29

Since a few days I am trying to rebuild my custom ZEN-kernel. After updating the sources everything was built using my own config, that worked many times before.

However, makepkg halted every time I tried to build the kernel, saying:

==> Building kernel and modules...
scripts/kconfig/conf -s arch/x86/Kconfig
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/kallsyms
  CC      scripts/mod/empty.o
  HOSTCC  scripts/mod/mk_elfconfig
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/conmakehash
  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/x86/kernel/asm-offsets.s
  GEN     include/generated/asm-offsets.h
  CALL    scripts/checksyscalls.sh
  CC      init/main.o
  HOSTCC  usr/gen_init_cpio
  GEN     usr/initramfs_data.cpio
  AS      usr/initramfs_data.o
  LD      usr/built-in.o
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/do_mounts.o
init/main.c: In function 'do_one_initcall':
init/main.c:723:10: warning: 'calltime.tv64' may be used uninitialized in this function
  CC      init/do_mounts_initrd.o
  CC      init/initramfs.o
  CC      init/calibrate.o
  LD      arch/x86/crypto/built-in.o
  AS [M]  arch/x86/crypto/aes-i586-asm_32.o
  CC [M]  arch/x86/crypto/aes_glue.o
  CC      init/version.o
  AS [M]  arch/x86/crypto/salsa20-i586-asm_32.o
  CC [M]  arch/x86/crypto/salsa20_glue.o
  LD      init/mounts.o
  LD      init/built-in.o
  CC      kernel/sched.o
  AS [M]  arch/x86/crypto/twofish-i586-asm_32.o
  CC [M]  arch/x86/crypto/twofish_glue.o
  CC [M]  arch/x86/crypto/crc32c-intel.o
  LD [M]  arch/x86/crypto/aes-i586.o
  LD [M]  arch/x86/crypto/twofish-i586.o
  LD [M]  arch/x86/crypto/salsa20-i586.o
  CC      arch/x86/kernel/process_32.o
  CC      arch/x86/kernel/signal.o
  AS      arch/x86/kernel/entry_32.o
  CC      arch/x86/kernel/traps.o
  CC      kernel/fork.o
  CC      arch/x86/kernel/irq.o
  CC      arch/x86/kernel/irq_32.o
  CC      kernel/exec_domain.o
  CC      arch/x86/kernel/dumpstack_32.o
  CC      kernel/panic.o
  CC      arch/x86/kernel/time.o
  CC      kernel/printk.o
  CC      arch/x86/kernel/ioport.o
  CC      arch/x86/kernel/ldt.o
  CC      kernel/cpu.o
  CC      arch/x86/kernel/dumpstack.o
  CC      kernel/exit.o
  CC      arch/x86/kernel/setup.o
  CC      arch/x86/kernel/x86_init.o
  CC      arch/x86/kernel/i8259.o
  CC      kernel/itimer.o
  CC      arch/x86/kernel/irqinit.o
  TIMEC   kernel/timeconst.h
  CC      arch/x86/kernel/probe_roms_32.o
  CC      kernel/softirq.o
  CC      arch/x86/kernel/sys_i386_32.o
kernel/softirq.c: In function 'run_ksoftirqd':
kernel/softirq.c:719:4: error: implicit declaration of function 'rcu_note_context_switch'
make[1]: *** [kernel/softirq.o] Error 1
make: *** [kernel] Error 2
make: *** Waiting for unfinished jobs....
  CC      arch/x86/kernel/i386_ksyms_32.o
  CC      arch/x86/kernel/bootflag.o
  CC      arch/x86/kernel/e820.o
  CC      arch/x86/kernel/pci-dma.o
  CC      arch/x86/mm/init.o
  CC      arch/x86/kernel/quirks.o
  CC      arch/x86/mm/init_32.o
  CC      arch/x86/kernel/i8237.o
  CC      arch/x86/kernel/topology.o
  CC      arch/x86/kernel/kdebugfs.o
  CC      arch/x86/mm/fault.o
  CC      arch/x86/kernel/alternative.o
  CC      arch/x86/mm/ioremap.o
  CC      arch/x86/kernel/i8253.o
  CC      arch/x86/kernel/pci-nommu.o
  CC      arch/x86/mm/extable.o
  CC      arch/x86/mm/pageattr.o
  CC      arch/x86/kernel/hw_breakpoint.o
  CC      arch/x86/kernel/tsc.o
  CC      arch/x86/mm/mmap.o
  CC      arch/x86/mm/pat.o
  CC      arch/x86/kernel/io_delay.o
  CC      arch/x86/kernel/rtc.o
  CC      arch/x86/mm/pgtable.o
  CC      arch/x86/kernel/trampoline.o
  CC      arch/x86/kernel/process.o
  CC      arch/x86/mm/physaddr.o
  CC      arch/x86/mm/gup.o
  CC      arch/x86/kernel/i387.o
  CC      arch/x86/mm/setup_nx.o
  CC      arch/x86/mm/tlb.o
  CC      arch/x86/kernel/xsave.o
  CC      arch/x86/mm/pgtable_32.o
  CC      arch/x86/kernel/ptrace.o
  CC      arch/x86/mm/iomap_32.o
  LD      arch/x86/mm/built-in.o
  LDS     arch/x86/vdso/vdso32/vdso32.lds
  CC      arch/x86/kernel/tls.o
  AS      arch/x86/vdso/vdso32/note.o
  AS      arch/x86/vdso/vdso32/int80.o
  AS      arch/x86/vdso/vdso32/sysenter.o
  CC      arch/x86/vdso/vdso32-setup.o
  CC      arch/x86/kernel/step.o
  VDSO    arch/x86/vdso/vdso32-int80.so.dbg
  CC      arch/x86/kernel/acpi/boot.o
  VDSO    arch/x86/vdso/vdso32-sysenter.so.dbg
  VDSOSYM arch/x86/vdso/vdso32-int80-syms.lds
  VDSOSYM arch/x86/vdso/vdso32-sysenter-syms.lds
  OBJCOPY arch/x86/vdso/vdso32-int80.so
  OBJCOPY arch/x86/vdso/vdso32-sysenter.so
  VDSOSYM arch/x86/vdso/vdso32-syms.lds
  AS      arch/x86/vdso/vdso32.o
  LD      arch/x86/vdso/built-in.o
  CC      arch/x86/kernel/acpi/cstate.o
  CC      arch/x86/kernel/apic/apic.o
  LD      arch/x86/kernel/acpi/built-in.o
  CC      arch/x86/kernel/cpu/intel_cacheinfo.o
arch/x86/kernel/apic/apic.c: In function 'lapic_suspend':
arch/x86/kernel/apic/apic.c:1989:3: warning: statement with no effect
arch/x86/kernel/apic/apic.c: In function 'lapic_resume':
arch/x86/kernel/apic/apic.c:2066:3: warning: statement with no effect
  CC      arch/x86/kernel/cpu/addon_cpuid_features.o
  CC      arch/x86/kernel/apic/apic_noop.o
  CC      arch/x86/kernel/cpu/proc.o
  CC      arch/x86/kernel/apic/probe_32.o
  MKCAP   arch/x86/kernel/cpu/capflags.c
  CC      arch/x86/kernel/cpu/powerflags.o
  CC      arch/x86/kernel/cpu/common.o
  CC      arch/x86/kernel/apic/ipi.o
  CC      arch/x86/kernel/apic/nmi.o
  CC      arch/x86/kernel/cpu/vmware.o
  CC      arch/x86/kernel/cpu/hypervisor.o
  CC      arch/x86/kernel/cpu/sched.o
  CC      arch/x86/kernel/apic/io_apic.o
  CC      arch/x86/kernel/cpu/bugs.o
  CC      arch/x86/kernel/cpu/cmpxchg.o
  CC      arch/x86/kernel/cpu/intel.o
  CC      arch/x86/kernel/cpu/perf_event.o
arch/x86/kernel/cpu/perf_event.c:1206:32: warning: 'emptyconstraint' defined but not used
  LD      arch/x86/kernel/apic/built-in.o
  CC      arch/x86/kernel/reboot.o
  LD      arch/x86/kernel/cpu/cpufreq/built-in.o
  CC [M]  arch/x86/kernel/cpu/cpufreq/speedstep-ich.o
  CC      arch/x86/kernel/early-quirks.o
  CC [M]  arch/x86/kernel/cpu/cpufreq/speedstep-lib.o
  CC      arch/x86/kernel/smp.o
  CC      arch/x86/kernel/cpu/mcheck/mce.o
  CC      arch/x86/kernel/smpboot.o
  CC      arch/x86/kernel/cpu/mtrr/main.o
  CC      arch/x86/kernel/cpu/mcheck/mce-severity.o
  CC      arch/x86/kernel/cpu/mcheck/mce_intel.o
  CC      arch/x86/kernel/cpu/mtrr/if.o
  CC      arch/x86/kernel/cpu/mcheck/threshold.o
  CC      arch/x86/kernel/cpu/mtrr/generic.o
  CC      arch/x86/kernel/cpu/mcheck/therm_throt.o
  LD      arch/x86/kernel/cpu/mcheck/built-in.o
  CC      arch/x86/kernel/cpu/perfctr-watchdog.o
  CC      arch/x86/kernel/cpu/mtrr/cleanup.o
  CC      arch/x86/kernel/cpu/mtrr/amd.o
  CC      arch/x86/kernel/cpu/mtrr/cyrix.o
  CC      arch/x86/kernel/cpu/mtrr/centaur.o
  CC      arch/x86/kernel/tsc_sync.o
  LD      arch/x86/kernel/cpu/mtrr/built-in.o
  CC      arch/x86/kernel/cpu/capflags.o
  LD      arch/x86/kernel/cpu/built-in.o
  CC      arch/x86/kernel/setup_percpu.o
  AS      arch/x86/kernel/trampoline_32.o
  CC      arch/x86/kernel/module.o
  CC      arch/x86/kernel/doublefault_32.o
  CC      arch/x86/kernel/vm86_32.o
  CC      arch/x86/kernel/hpet.o
  AS      arch/x86/kernel/head_32.o
arch/x86/kernel/head_32.S: Assembler messages:
arch/x86/kernel/head_32.S:64: Warning: shift count out of range (32 is not between 0 and 31)
  CC      arch/x86/kernel/head32.o
  CC      arch/x86/kernel/head.o
  CC      arch/x86/kernel/init_task.o
  LDS     arch/x86/kernel/vmlinux.lds
  CC [M]  arch/x86/kernel/msr.o
  CC [M]  arch/x86/kernel/cpuid.o
  LD      arch/x86/kernel/built-in.o
  LD      arch/x86/built-in.o
==> ERROR: Failed... Your source tree might be broken. Run 'make mrproper' in src/kernel26zen-stable to clean it up
    Aborting...

I know the problem is probably not in built-in.o but somewhere else.

Of course I ran `make mrproper` in the mentioned directory before I rebuilt over and over again, enabling and disabling several modules, like Mountainjew did in this topic. I even tried to download the complete source tree again, but to no avail.

Does anyone know if there's currently a problem with one of the kernel modules or with the ZEN sources in general?

Last edited by Marcel- (2010-08-02 21:50:06)

Marcel- · 2010-08-02 21:49:25

Stupid me! I overlooked this error message:

kernel/softirq.c: In function 'run_ksoftirqd':
kernel/softirq.c:719:4: error: implicit declaration of function 'rcu_note_context_switch'

Some searching resulted in a post in the Gentoo forums, saying that CONFIG_BRIDGE_IGMP_SNOOPING is the culprit. I noticed that flag wasn't enabled at all, but two posts below it turned out that using Classic RCU can cause troubles. I switched to Tree RCU and my kernel was built successfully (though this still sounds like a bug to me).

kronisk · 2010-08-05 21:43:46

How do you switch between classic RCU and tree RCU?
Excuse my noobiness

Marcel- · 2010-08-06 07:31:38

I already feared that that question would pop up

General setup
  RCU Subsystem
    RCU Implementation
      Tree-based hierarchical RCU

Arch Linux

#1 2010-08-02 21:19:29

[SOLVED] Error 'Your source tree might be broken' in kernel26zen-git

#2 2010-08-02 21:49:25

Re: [SOLVED] Error 'Your source tree might be broken' in kernel26zen-git

#3 2010-08-05 21:43:46

Re: [SOLVED] Error 'Your source tree might be broken' in kernel26zen-git

#4 2010-08-06 07:31:38

Re: [SOLVED] Error 'Your source tree might be broken' in kernel26zen-git

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