locating source of kernel race

[dbx at pobox.com (Dan Barrett)]

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Folks,
I moved to 2.4.26 today, and the kernel seems to be racing for some reason.  
Between 30-40% of my CPU is being eaten by the kernel; all userland processes 
are working fine and idling when they should.  I've tried to isolate things 
as best I can, but the problem exists with or without any modules loaded.  
Nothing unusual in the logs.
Is there any way to trace into kernel activity with top?  

Best,
d.

PS:
Here's /proc/config for 
CONFIG_X86=y
CONFIG_UID16=y
CONFIG_EXPERIMENTAL=y
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y
CONFIG_MPENTIUMIII=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_X86_ALIGNMENT_16=y
CONFIG_X86_HAS_TSC=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_PGE=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_F00F_WORKS_OK=y
CONFIG_X86_MCE=y
CONFIG_NOHIGHMEM=y
CONFIG_SMP=y
CONFIG_PREEMPT=y
CONFIG_NR_CPUS=2
CONFIG_X86_TSC=y
CONFIG_HAVE_DEC_LOCK=y
CONFIG_NET=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_PCI=y
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_NAMES=y
CONFIG_HOTPLUG=y
CONFIG_SYSVIPC=y
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
CONFIG_PM=y
CONFIG_APM=m
CONFIG_ACPI=y
CONFIG_ACPI_BOOT=y
CONFIG_ACPI_BUS=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_PCI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_SYSTEM=y
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_CML1=m
CONFIG_PNP=y
CONFIG_BLK_DEV_FD=m
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_STATS=y
CONFIG_PACKET=y
CONFIG_NETFILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_NF_CONNTRACK=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_MAC=m
CONFIG_IP_NF_MATCH_PKTTYPE=m
CONFIG_IP_NF_MATCH_MULTIPORT=m
CONFIG_IP_NF_MATCH_STATE=m
CONFIG_IP_NF_MATCH_CONNTRACK=m
CONFIG_IP_NF_MATCH_OWNER=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IPV6_SCTP__=y
CONFIG_SCTP_HMAC_NONE=y
CONFIG_IPSEC=m
CONFIG_IPSEC_IPIP=y
CONFIG_IPSEC_AH=y
CONFIG_IPSEC_AUTH_HMAC_MD5=y
CONFIG_IPSEC_AUTH_HMAC_SHA1=y
CONFIG_IPSEC_ESP=y
CONFIG_IPSEC_ENC_3DES=y
CONFIG_IPSEC_ALG=y
CONFIG_IPSEC_ALG_AES=m
CONFIG_IPSEC_ALG_TWOFISH=m
CONFIG_IPSEC_ALG_SERPENT=m
CONFIG_IPSEC_IPCOMP=y
CONFIG_IPSEC_DEBUG=y
CONFIG_IPSEC_NAT_TRAVERSAL=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_IDEDMA_AUTO=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
CONFIG_BLK_DEV_SR=y
CONFIG_SR_EXTRA_DEVS=8
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_DEBUG_QUEUES=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=10000
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=m
CONFIG_NET_PCI=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
CONFIG_AGP=y
CONFIG_AGP_VIA=y
CONFIG_AGP_AMD=y
CONFIG_AGP_ALI=y
CONFIG_AGP_NVIDIA=y
CONFIG_DRM=y
CONFIG_DRM_NEW=y
CONFIG_AUTOFS4_FS=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_TMPFS=y
CONFIG_RAMFS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_NTFS_FS=m
CONFIG_PROC_FS=y
CONFIG_PROC_CONFIG=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
CONFIG_EXT2_FS=y
CONFIG_UFS_FS=m
CONFIG_XFS_FS=m
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFSD=m
CONFIG_SUNRPC=m
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_SMB_FS=m
CONFIG_SMB_UNIX=y
CONFIG_MSDOS_PARTITION=y
CONFIG_SMB_NLS=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_VGA_CONSOLE=y
CONFIG_VIDEO_SELECT=y
CONFIG_SOUND=y
CONFIG_SOUND_EMU10K1=m
CONFIG_MIDI_EMU10K1=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_UHCI=m
CONFIG_USB_UHCI_ALT=m
CONFIG_USB_OHCI=m
CONFIG_USB_SL811HS_ALT=m
CONFIG_USB_STORAGE=m
CONFIG_LOG_BUF_SHIFT=0
CONFIG_CRYPTO=y
CONFIG_CRYPTO_SHA256=y
CONFIG_GRKERNSEC=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_SHA256=y
CONFIG_GRKERNSEC_LOW=y
CONFIG_GRKERNSEC_ACL_MAXTRIES=3
CONFIG_GRKERNSEC_ACL_TIMEOUT=30
CONFIG_GRKERNSEC_FLOODTIME=10
CONFIG_GRKERNSEC_FLOODBURST=4
CONFIG_GRKERNSEC_LINK=y
CONFIG_GRKERNSEC_FIFO=y
CONFIG_GRKERNSEC_RANDPID=y
CONFIG_GRKERNSEC_EXECVE=y
CONFIG_GRKERNSEC_RANDNET=y
CONFIG_GRKERNSEC_DMESG=y
CONFIG_GRKERNSEC_RANDID=y
CONFIG_GRKERNSEC_CHROOT_CHDIR=y

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