Message-ID: <alpine.DEB.1.10.0908111056550.30494@gentwo.org>
Date:	Tue, 11 Aug 2009 11:03:17 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Zdenek Kabelac <zdenek.kabelac@...il.com>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: System freeze on reboot - general protection fault

On Tue, 11 Aug 2009, Zdenek Kabelac wrote:

> Well - I've tried to switch from  'slub' allocator to  old 'slab'
> allocator and the problem is gone - shutdown goes without any problem.
>
> So it's probably related to 'slub' allocator only?

The slab allocator does not have all the diagnostics of slub. The issue
may simply not be detected in slab. If you switch off diagnostics in slub
then everything will seem to work fine as well. But we need to figure out
what is going wrong here.

>anything else I could try to better detect this problem?

Does it work with 2.6.30?

If you can do debugging during bootstrap (kvm?) then set a breakpoint at
slab_bug. The registers have enough information to get the error message
at that point.

> (well the bisect should be last resort - as it might be pretty lengthy
> - I'm not really sure which kernel would be actually good for the
> start)

The last released stable kernel is a good point to start.

> >> # CONFIG_LDM_DEBUG is not set
> >> # CONFIG_SGI_PARTITION is not set
> >> # CONFIG_ULTRIX_PARTITION is not set
> >> # CONFIG_SUN_PARTITION is not set
> >> # CONFIG_KARMA_PARTITION is not set
> >> CONFIG_EFI_PARTITION=y
> >> # CONFIG_SYSV68_PARTITION is not set
> >> CONFIG_NLS=y
> >> CONFIG_NLS_DEFAULT="iso8859-1"
> >> # CONFIG_NLS_CODEPAGE_437 is not set
> >> # CONFIG_NLS_CODEPAGE_737 is not set
> >> # CONFIG_NLS_CODEPAGE_775 is not set
> >> # CONFIG_NLS_CODEPAGE_850 is not set
> >> CONFIG_NLS_CODEPAGE_852=m
> >> # CONFIG_NLS_CODEPAGE_855 is not set
> >> # CONFIG_NLS_CODEPAGE_857 is not set
> >> # CONFIG_NLS_CODEPAGE_860 is not set
> >> # CONFIG_NLS_CODEPAGE_861 is not set
> >> # CONFIG_NLS_CODEPAGE_862 is not set
> >> # CONFIG_NLS_CODEPAGE_863 is not set
> >> # CONFIG_NLS_CODEPAGE_864 is not set
> >> # CONFIG_NLS_CODEPAGE_865 is not set
> >> # CONFIG_NLS_CODEPAGE_866 is not set
> >> # CONFIG_NLS_CODEPAGE_869 is not set
> >> # CONFIG_NLS_CODEPAGE_936 is not set
> >> # CONFIG_NLS_CODEPAGE_950 is not set
> >> # CONFIG_NLS_CODEPAGE_932 is not set
> >> # CONFIG_NLS_CODEPAGE_949 is not set
> >> # CONFIG_NLS_CODEPAGE_874 is not set
> >> # CONFIG_NLS_ISO8859_8 is not set
> >> CONFIG_NLS_CODEPAGE_1250=m
> >> # CONFIG_NLS_CODEPAGE_1251 is not set
> >> CONFIG_NLS_ASCII=y
> >> CONFIG_NLS_ISO8859_1=m
> >> CONFIG_NLS_ISO8859_2=m
> >> # CONFIG_NLS_ISO8859_3 is not set
> >> # CONFIG_NLS_ISO8859_4 is not set
> >> # CONFIG_NLS_ISO8859_5 is not set
> >> # CONFIG_NLS_ISO8859_6 is not set
> >> # CONFIG_NLS_ISO8859_7 is not set
> >> # CONFIG_NLS_ISO8859_9 is not set
> >> # CONFIG_NLS_ISO8859_13 is not set
> >> # CONFIG_NLS_ISO8859_14 is not set
> >> # CONFIG_NLS_ISO8859_15 is not set
> >> # CONFIG_NLS_KOI8_R is not set
> >> # CONFIG_NLS_KOI8_U is not set
> >> CONFIG_NLS_UTF8=m
> >> # CONFIG_DLM is not set
> >>
> >> #
> >> # Kernel hacking
> >> #
> >> CONFIG_TRACE_IRQFLAGS_SUPPORT=y
> >> CONFIG_PRINTK_TIME=y
> >> CONFIG_ENABLE_WARN_DEPRECATED=y
> >> CONFIG_ENABLE_MUST_CHECK=y
> >> CONFIG_FRAME_WARN=2048
> >> CONFIG_MAGIC_SYSRQ=y
> >> # CONFIG_UNUSED_SYMBOLS is not set
> >> CONFIG_DEBUG_FS=y
> >> # CONFIG_HEADERS_CHECK is not set
> >> CONFIG_DEBUG_KERNEL=y
> >> CONFIG_DEBUG_SHIRQ=y
> >> CONFIG_DETECT_SOFTLOCKUP=y
> >> # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
> >> CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
> >> CONFIG_DETECT_HUNG_TASK=y
> >> # CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
> >> CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
> >> CONFIG_SCHED_DEBUG=y
> >> CONFIG_SCHEDSTATS=y
> >> CONFIG_TIMER_STATS=y
> >> CONFIG_DEBUG_OBJECTS=y
> >> # CONFIG_DEBUG_OBJECTS_SELFTEST is not set
> >> CONFIG_DEBUG_OBJECTS_FREE=y
> >> CONFIG_DEBUG_OBJECTS_TIMERS=y
> >> CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
> >> CONFIG_SLUB_DEBUG_ON=y
> >> # CONFIG_SLUB_STATS is not set
> >> # CONFIG_DEBUG_KMEMLEAK is not set
> >> CONFIG_DEBUG_RT_MUTEXES=y
> >> CONFIG_DEBUG_PI_LIST=y
> >> # CONFIG_RT_MUTEX_TESTER is not set
> >> CONFIG_DEBUG_SPINLOCK=y
> >> CONFIG_DEBUG_MUTEXES=y
> >> CONFIG_DEBUG_LOCK_ALLOC=y
> >> CONFIG_PROVE_LOCKING=y
> >> CONFIG_LOCKDEP=y
> >> CONFIG_LOCK_STAT=y
> >> # CONFIG_DEBUG_LOCKDEP is not set
> >> CONFIG_TRACE_IRQFLAGS=y
> >> CONFIG_DEBUG_SPINLOCK_SLEEP=y
> >> # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
> >> CONFIG_STACKTRACE=y
> >> # CONFIG_DEBUG_KOBJECT is not set
> >> CONFIG_DEBUG_BUGVERBOSE=y
> >> CONFIG_DEBUG_INFO=y
> >> CONFIG_DEBUG_VM=y
> >> # CONFIG_DEBUG_VIRTUAL is not set
> >> # CONFIG_DEBUG_WRITECOUNT is not set
> >> # CONFIG_DEBUG_MEMORY_INIT is not set
> >> CONFIG_DEBUG_LIST=y
> >> CONFIG_DEBUG_SG=y
> >> CONFIG_DEBUG_NOTIFIERS=y
> >> CONFIG_ARCH_WANT_FRAME_POINTERS=y
> >> CONFIG_FRAME_POINTER=y
> >> # CONFIG_BOOT_PRINTK_DELAY is not set
> >> # CONFIG_RCU_TORTURE_TEST is not set
> >> CONFIG_RCU_CPU_STALL_DETECTOR=y
> >> # CONFIG_KPROBES_SANITY_TEST is not set
> >> # CONFIG_BACKTRACE_SELF_TEST is not set
> >> # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
> >> # CONFIG_LKDTM is not set
> >> # CONFIG_FAULT_INJECTION is not set
> >> CONFIG_LATENCYTOP=y
> >> # CONFIG_SYSCTL_SYSCALL_CHECK is not set
> >> CONFIG_DEBUG_PAGEALLOC=y
> >> CONFIG_USER_STACKTRACE_SUPPORT=y
> >> CONFIG_NOP_TRACER=y
> >> CONFIG_HAVE_FTRACE_NMI_ENTER=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_FTRACE_SYSCALLS=y
> >> CONFIG_TRACER_MAX_TRACE=y
> >> CONFIG_RING_BUFFER=y
> >> CONFIG_FTRACE_NMI_ENTER=y
> >> CONFIG_EVENT_TRACING=y
> >> CONFIG_CONTEXT_SWITCH_TRACER=y
> >> CONFIG_TRACING=y
> >> CONFIG_GENERIC_TRACER=y
> >> CONFIG_TRACING_SUPPORT=y
> >> CONFIG_FTRACE=y
> >> CONFIG_FUNCTION_TRACER=y
> >> CONFIG_FUNCTION_GRAPH_TRACER=y
> >> CONFIG_IRQSOFF_TRACER=y
> >> CONFIG_SYSPROF_TRACER=y
> >> CONFIG_SCHED_TRACER=y
> >> # CONFIG_FTRACE_SYSCALLS is not set
> >> CONFIG_BOOT_TRACER=y
> >> CONFIG_BRANCH_PROFILE_NONE=y
> >> # CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
> >> # CONFIG_PROFILE_ALL_BRANCHES is not set
> >> CONFIG_POWER_TRACER=y
> >> CONFIG_STACK_TRACER=y
> >> CONFIG_KMEMTRACE=y
> >> CONFIG_WORKQUEUE_TRACER=y
> >> # CONFIG_BLK_DEV_IO_TRACE is not set
> >> CONFIG_DYNAMIC_FTRACE=y
> >> # CONFIG_FUNCTION_PROFILER is not set
> >> CONFIG_FTRACE_MCOUNT_RECORD=y
> >> # CONFIG_FTRACE_STARTUP_TEST is not set
> >> CONFIG_MMIOTRACE=y
> >> CONFIG_MMIOTRACE_TEST=m
> >> # CONFIG_RING_BUFFER_BENCHMARK is not set
> >> # CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
> >> # CONFIG_DYNAMIC_DEBUG is not set
> >> CONFIG_DMA_API_DEBUG=y
> >> # CONFIG_SAMPLES is not set
> >> CONFIG_HAVE_ARCH_KGDB=y
> >> # CONFIG_KGDB is not set
> >> CONFIG_HAVE_ARCH_KMEMCHECK=y
> >> # CONFIG_STRICT_DEVMEM is not set
> >> CONFIG_X86_VERBOSE_BOOTUP=y
> >> # CONFIG_EARLY_PRINTK is not set
> >> CONFIG_DEBUG_STACKOVERFLOW=y
> >> CONFIG_DEBUG_STACK_USAGE=y
> >> # CONFIG_DEBUG_PER_CPU_MAPS is not set
> >> CONFIG_X86_PTDUMP=y
> >> CONFIG_DEBUG_RODATA=y
> >> # CONFIG_DEBUG_RODATA_TEST is not set
> >> # CONFIG_DEBUG_NX_TEST is not set
> >> # CONFIG_IOMMU_DEBUG is not set
> >> # CONFIG_IOMMU_STRESS is not set
> >> 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_IO_DELAY_0XED is not set
> >> # CONFIG_IO_DELAY_UDELAY is not set
> >> # CONFIG_IO_DELAY_NONE is not set
> >> CONFIG_DEFAULT_IO_DELAY_TYPE=0
> >> CONFIG_DEBUG_BOOT_PARAMS=y
> >> # CONFIG_CPA_DEBUG is not set
> >> CONFIG_OPTIMIZE_INLINING=y
> >>
> >> #
> >> # Security options
> >> #
> >> # CONFIG_KEYS is not set
> >> CONFIG_SECURITY=y
> >> # CONFIG_SECURITYFS is not set
> >> CONFIG_SECURITY_NETWORK=y
> >> # CONFIG_SECURITY_NETWORK_XFRM is not set
> >> # CONFIG_SECURITY_PATH is not set
> >> # CONFIG_SECURITY_FILE_CAPABILITIES is not set
> >> CONFIG_SECURITY_SELINUX=y
> >> CONFIG_SECURITY_SELINUX_BOOTPARAM=y
> >> CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
> >> CONFIG_SECURITY_SELINUX_DISABLE=y
> >> CONFIG_SECURITY_SELINUX_DEVELOP=y
> >> CONFIG_SECURITY_SELINUX_AVC_STATS=y
> >> CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
> >> # CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
> >> # CONFIG_SECURITY_TOMOYO is not set
> >> # CONFIG_IMA is not set
> >> CONFIG_XOR_BLOCKS=m
> >> CONFIG_ASYNC_CORE=m
> >> CONFIG_ASYNC_MEMCPY=m
> >> CONFIG_ASYNC_XOR=m
> >> CONFIG_CRYPTO=y
> >>
> >> #
> >> # Crypto core or helper
> >> #
> >> # CONFIG_CRYPTO_FIPS is not set
> >> CONFIG_CRYPTO_ALGAPI=m
> >> CONFIG_CRYPTO_ALGAPI2=m
> >> CONFIG_CRYPTO_AEAD2=m
> >> CONFIG_CRYPTO_BLKCIPHER=m
> >> CONFIG_CRYPTO_BLKCIPHER2=m
> >> CONFIG_CRYPTO_HASH=m
> >> CONFIG_CRYPTO_HASH2=m
> >> CONFIG_CRYPTO_RNG2=m
> >> CONFIG_CRYPTO_PCOMP=m
> >> CONFIG_CRYPTO_MANAGER=m
> >> CONFIG_CRYPTO_MANAGER2=m
> >> # CONFIG_CRYPTO_GF128MUL is not set
> >> # CONFIG_CRYPTO_NULL is not set
> >> CONFIG_CRYPTO_WORKQUEUE=m
> >> # CONFIG_CRYPTO_CRYPTD is not set
> >> # CONFIG_CRYPTO_AUTHENC is not set
> >> # CONFIG_CRYPTO_TEST is not set
> >>
> >> #
> >> # Authenticated Encryption with Associated Data
> >> #
> >> # CONFIG_CRYPTO_CCM is not set
> >> # CONFIG_CRYPTO_GCM is not set
> >> # CONFIG_CRYPTO_SEQIV is not set
> >>
> >> #
> >> # Block modes
> >> #
> >> CONFIG_CRYPTO_CBC=m
> >> # CONFIG_CRYPTO_CTR is not set
> >> # CONFIG_CRYPTO_CTS is not set
> >> CONFIG_CRYPTO_ECB=m
> >> # CONFIG_CRYPTO_LRW is not set
> >> # CONFIG_CRYPTO_PCBC is not set
> >> # CONFIG_CRYPTO_XTS is not set
> >>
> >> #
> >> # Hash modes
> >> #
> >> CONFIG_CRYPTO_HMAC=m
> >> # CONFIG_CRYPTO_XCBC is not set
> >>
> >> #
> >> # Digest
> >> #
> >> CONFIG_CRYPTO_CRC32C=m
> >> # CONFIG_CRYPTO_CRC32C_INTEL is not set
> >> # CONFIG_CRYPTO_MD4 is not set
> >> CONFIG_CRYPTO_MD5=m
> >> CONFIG_CRYPTO_MICHAEL_MIC=m
> >> # CONFIG_CRYPTO_RMD128 is not set
> >> # CONFIG_CRYPTO_RMD160 is not set
> >> # CONFIG_CRYPTO_RMD256 is not set
> >> # CONFIG_CRYPTO_RMD320 is not set
> >> CONFIG_CRYPTO_SHA1=m
> >> CONFIG_CRYPTO_SHA256=m
> >> # CONFIG_CRYPTO_SHA512 is not set
> >> # CONFIG_CRYPTO_TGR192 is not set
> >> # CONFIG_CRYPTO_WP512 is not set
> >>
> >> #
> >> # Ciphers
> >> #
> >> CONFIG_CRYPTO_AES=m
> >> # CONFIG_CRYPTO_AES_X86_64 is not set
> >> # CONFIG_CRYPTO_AES_NI_INTEL is not set
> >> # CONFIG_CRYPTO_ANUBIS is not set
> >> CONFIG_CRYPTO_ARC4=m
> >> # CONFIG_CRYPTO_BLOWFISH is not set
> >> # CONFIG_CRYPTO_CAMELLIA is not set
> >> # CONFIG_CRYPTO_CAST5 is not set
> >> # CONFIG_CRYPTO_CAST6 is not set
> >> CONFIG_CRYPTO_DES=m
> >> # CONFIG_CRYPTO_FCRYPT is not set
> >> # CONFIG_CRYPTO_KHAZAD is not set
> >> # CONFIG_CRYPTO_SALSA20 is not set
> >> # CONFIG_CRYPTO_SALSA20_X86_64 is not set
> >> # CONFIG_CRYPTO_SEED is not set
> >> # CONFIG_CRYPTO_SERPENT is not set
> >> # CONFIG_CRYPTO_TEA is not set
> >> # CONFIG_CRYPTO_TWOFISH is not set
> >> # CONFIG_CRYPTO_TWOFISH_X86_64 is not set
> >>
> >> #
> >> # Compression
> >> #
> >> # CONFIG_CRYPTO_DEFLATE is not set
> >> # CONFIG_CRYPTO_ZLIB is not set
> >> # CONFIG_CRYPTO_LZO is not set
> >>
> >> #
> >> # Random Number Generation
> >> #
> >> # CONFIG_CRYPTO_ANSI_CPRNG is not set
> >> CONFIG_CRYPTO_HW=y
> >> # CONFIG_CRYPTO_DEV_PADLOCK is not set
> >> # CONFIG_CRYPTO_DEV_HIFN_795X is not set
> >> CONFIG_HAVE_KVM=y
> >> CONFIG_HAVE_KVM_IRQCHIP=y
> >> CONFIG_VIRTUALIZATION=y
> >> CONFIG_KVM=m
> >> CONFIG_KVM_INTEL=m
> >> CONFIG_KVM_AMD=m
> >> CONFIG_KVM_TRACE=y
> >> CONFIG_VIRTIO=m
> >> CONFIG_VIRTIO_RING=m
> >> CONFIG_VIRTIO_PCI=m
> >> CONFIG_VIRTIO_BALLOON=m
> >> CONFIG_BINARY_PRINTF=y
> >>
> >> #
> >> # Library routines
> >> #
> >> CONFIG_BITREVERSE=y
> >> CONFIG_GENERIC_FIND_FIRST_BIT=y
> >> CONFIG_GENERIC_FIND_NEXT_BIT=y
> >> CONFIG_GENERIC_FIND_LAST_BIT=y
> >> CONFIG_CRC_CCITT=m
> >> CONFIG_CRC16=m
> >> CONFIG_CRC_T10DIF=y
> >> CONFIG_CRC_ITU_T=m
> >> CONFIG_CRC32=y
> >> # CONFIG_CRC7 is not set
> >> CONFIG_LIBCRC32C=m
> >> CONFIG_ZLIB_INFLATE=y
> >> CONFIG_ZLIB_DEFLATE=m
> >> CONFIG_LZO_COMPRESS=m
> >> CONFIG_LZO_DECOMPRESS=m
> >> CONFIG_DECOMPRESS_GZIP=y
> >> CONFIG_DECOMPRESS_BZIP2=y
> >> CONFIG_HAS_IOMEM=y
> >> CONFIG_HAS_IOPORT=y
> >> CONFIG_HAS_DMA=y
> >> CONFIG_NLATTR=y
> >>
> >
>
>
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