Messages in this thread | | | Date | Sun, 24 Oct 2010 15:15:41 +0200 | From | Michael Leun <> | Subject | Re: NET_NS: unregister_netdevice: waiting for lo to become free (adding ipv6 address to interface) |
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On Fri, 22 Oct 2010 19:05:32 +0200 Michael Leun <lkml20100708@newton.leun.net> wrote:
> On Fri, 22 Oct 2010 14:48:58 +0200 > David Lamparter <equinox@diac24.net> wrote: > > > On Thu, Oct 21, 2010 at 05:15:32PM +0200, Michael Leun wrote: > > > unfortunately the bug described below originally reported in > > > 2.6.35-rcX is still there in 2.6.36. > > > > can you post your full kernel .config? > > Please find below. > > > I'm using network namespaces quite extensively - OpenVPN and IPv6 > > included - and i haven't hit this bug. That makes it rather likely > > it depends on some option difference. > > I take candidates for options to change for test... ;-) > > Maybe I will try to strip it down for test towards a minimal config.
Now I have tried a kernel config with almost everything disabled - please find below.
If I have overlooked anything I should disable (or if you suggest I should not disable, but enable any option) - please tell me.
I've created an ~2.5MB bootable ISO image based on buildroot/busybox with this kernel, which also shows this bug (e.g. when run in VirtualBox).
If anybody is interested I could send this image as mail attachment or provide a download link.
ml@xenia:~> grep -v "^#" .config |grep -v "^ *$" CONFIG_X86_32=y CONFIG_X86=y CONFIG_INSTRUCTION_DECODER=y CONFIG_OUTPUT_FORMAT="elf32-i386" CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig" CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y CONFIG_MMU=y CONFIG_ZONE_DMA=y CONFIG_NEED_SG_DMA_LENGTH=y CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_HWEIGHT=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_ARCH_HAS_CPU_RELAX=y CONFIG_ARCH_HAS_DEFAULT_IDLE=y CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_HAVE_EARLY_RES=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_X86_32_LAZY_GS=y CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-ecx -fcall-saved-edx" CONFIG_KTIME_SCALAR=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" CONFIG_CONSTRUCTORS=y CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_CROSS_COMPILE="" CONFIG_LOCALVERSION="" CONFIG_HAVE_KERNEL_GZIP=y CONFIG_HAVE_KERNEL_BZIP2=y CONFIG_HAVE_KERNEL_LZMA=y CONFIG_HAVE_KERNEL_LZO=y CONFIG_KERNEL_LZMA=y CONFIG_TREE_RCU=y CONFIG_RCU_FANOUT=32 CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y CONFIG_NAMESPACES=y CONFIG_NET_NS=y CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" CONFIG_RD_GZIP=y CONFIG_RD_BZIP2=y CONFIG_RD_LZMA=y CONFIG_RD_LZO=y CONFIG_SYSCTL=y CONFIG_ANON_INODES=y CONFIG_UID16=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_PCSPKR_PLATFORM=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SIGNALFD=y CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y CONFIG_HAVE_PERF_EVENTS=y CONFIG_PERF_EVENTS=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y CONFIG_SLUB=y CONFIG_HAVE_OPROFILE=y CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_OPTPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y CONFIG_HAVE_DMA_ATTRS=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_DMA_API_DEBUG=y CONFIG_HAVE_HW_BREAKPOINT=y CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y CONFIG_HAVE_USER_RETURN_NOTIFIER=y CONFIG_HAVE_PERF_EVENTS_NMI=y CONFIG_HAVE_GENERIC_DMA_COHERENT=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 CONFIG_BLOCK=y CONFIG_LBDAF=y CONFIG_IOSCHED_NOOP=y CONFIG_DEFAULT_NOOP=y CONFIG_DEFAULT_IOSCHED="noop" CONFIG_INLINE_SPIN_UNLOCK=y CONFIG_INLINE_SPIN_UNLOCK_IRQ=y CONFIG_INLINE_READ_UNLOCK=y CONFIG_INLINE_READ_UNLOCK_IRQ=y CONFIG_INLINE_WRITE_UNLOCK=y CONFIG_INLINE_WRITE_UNLOCK_IRQ=y CONFIG_GENERIC_CLOCKEVENTS_BUILD=y CONFIG_M586=y CONFIG_X86_CPU=y CONFIG_X86_INTERNODE_CACHE_SHIFT=5 CONFIG_X86_CMPXCHG=y CONFIG_X86_L1_CACHE_SHIFT=5 CONFIG_X86_XADD=y CONFIG_X86_F00F_BUG=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_ALIGNMENT_16=y CONFIG_X86_MINIMUM_CPU_FAMILY=4 CONFIG_CPU_SUP_INTEL=y CONFIG_CPU_SUP_CYRIX_32=y CONFIG_CPU_SUP_AMD=y CONFIG_CPU_SUP_CENTAUR=y CONFIG_CPU_SUP_TRANSMETA_32=y CONFIG_CPU_SUP_UMC_32=y CONFIG_DMI=y CONFIG_NR_CPUS=1 CONFIG_PREEMPT_NONE=y CONFIG_VM86=y CONFIG_HIGHMEM4G=y CONFIG_PAGE_OFFSET=0xC0000000 CONFIG_HIGHMEM=y CONFIG_NEED_NODE_MEMMAP_SIZE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y CONFIG_ILLEGAL_POINTER_VALUE=0 CONFIG_SELECT_MEMORY_MODEL=y CONFIG_SPARSEMEM_MANUAL=y CONFIG_SPARSEMEM=y CONFIG_HAVE_MEMORY_PRESENT=y CONFIG_SPARSEMEM_STATIC=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y CONFIG_DEFAULT_MMAP_MIN_ADDR=65536 CONFIG_MTRR=y CONFIG_X86_PAT=y CONFIG_ARCH_USES_PG_UNCACHED=y CONFIG_HZ_1000=y CONFIG_HZ=1000 CONFIG_PHYSICAL_START=0x1000000 CONFIG_PHYSICAL_ALIGN=0x1000000 CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y CONFIG_PCI=y CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_DOMAINS=y CONFIG_ISA_DMA_API=y CONFIG_K8_NB=y CONFIG_BINFMT_ELF=y CONFIG_HAVE_AOUT=y CONFIG_HAVE_ATOMIC_IOMAP=y CONFIG_NET=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_FIB_HASH=y CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_IPV6=y CONFIG_UEVENT_HELPER_PATH="" CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y CONFIG_EXTRA_FIRMWARE="" CONFIG_HAVE_IDE=y CONFIG_SCSI_MOD=y CONFIG_NETDEVICES=y CONFIG_VETH=y CONFIG_INPUT=y CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=576 CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y CONFIG_SERIO=y CONFIG_SERIO_I8042=y CONFIG_SERIO_LIBPS2=y CONFIG_VT=y CONFIG_CONSOLE_TRANSLATIONS=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y CONFIG_FIX_EARLYCON_MEM=y CONFIG_UNIX98_PTYS=y CONFIG_DEVPORT=y CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_SSB_POSSIBLE=y CONFIG_VGA_ARB=y CONFIG_VGA_ARB_MAX_GPUS=16 CONFIG_VGA_CONSOLE=y CONFIG_VGACON_SOFT_SCROLLBACK=y CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64 CONFIG_DUMMY_CONSOLE=y CONFIG_FIRMWARE_MEMMAP=y CONFIG_FILE_LOCKING=y CONFIG_PROC_FS=y CONFIG_PROC_SYSCTL=y CONFIG_PROC_PAGE_MONITOR=y CONFIG_SYSFS=y CONFIG_MSDOS_PARTITION=y CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_FRAME_WARN=2048 CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_ARCH_WANT_FRAME_POINTERS=y CONFIG_USER_STACKTRACE_SUPPORT=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_HAVE_SYSCALL_TRACEPOINTS=y CONFIG_TRACING_SUPPORT=y CONFIG_HAVE_ARCH_KGDB=y CONFIG_HAVE_ARCH_KMEMCHECK=y CONFIG_EARLY_PRINTK=y CONFIG_DOUBLEFAULT=y CONFIG_HAVE_MMIOTRACE_SUPPORT=y CONFIG_IO_DELAY_TYPE_0X80=0 CONFIG_IO_DELAY_TYPE_0XED=1 CONFIG_IO_DELAY_TYPE_UDELAY=2 CONFIG_IO_DELAY_TYPE_NONE=3 CONFIG_IO_DELAY_0X80=y CONFIG_DEFAULT_IO_DELAY_TYPE=0 CONFIG_DEFAULT_SECURITY_DAC=y CONFIG_DEFAULT_SECURITY="" CONFIG_HAVE_KVM=y CONFIG_GENERIC_FIND_FIRST_BIT=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_FIND_LAST_BIT=y CONFIG_ZLIB_INFLATE=y CONFIG_LZO_DECOMPRESS=y CONFIG_DECOMPRESS_GZIP=y CONFIG_DECOMPRESS_BZIP2=y CONFIG_DECOMPRESS_LZMA=y CONFIG_DECOMPRESS_LZO=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y CONFIG_NLATTR=y
-- MfG,
Michael Leun
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