[BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

[-- Attachment #1: Type: text/plain, Size: 1467 bytes --]

Follow-up to an issue reported on the linux-s390 list, seen in the 
Hercules S/390 emulator.

On Sunday 08 March 2009, Frans Pop wrote:
> Well, not quite. It does boot successfully and I do get a login prompt.
> I can also login on the console or connect with SSH, but in both cases
> the system again gets into some loop before I actually get a shell
> prompt.

During the bisection series the system would sometimes enter the loop 
during the boot procedure, before I tried to logon. After it enters the 
loop one processor just goes racing at 100%.

I've bisected this to the following set of three patches:
commit ca109491f612aab5c8152207631c0444f63da97f
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Tue Nov 25 12:43:51 2008 +0100
    hrtimer: removing all ur callback modes
commit 37810659ea7d9572c5ac284ade272f806ef8f788
    hrtimer: removing all ur callback modes, fix hotplug
commit a0a99b227da57f81319dd239bc4de811b0f530ec
    hrtimer: removing all ur callback modes, fix

I've not tried to bisect between these patches as the last two are fixes. 
If needed I can do though.

Unfortunately I was unable to revert that series on top of .29-rc7.

Note:
During the bisect I had to revert 3 other commits before each iteration 
because of issues already present in 2.6.28 (reported separately):
commit 49b5cf34727a6c1be1568ab28e89a2d9a6bf51e0
commit 5cd1c9c5cf30d4b33df3d3f74d8142f278d536b7
commit 6c9bacb41c10ba84ff68f238e234d96f35fb64f7

Cheers,
FJP


[-- Attachment #2: config --]
[-- Type: text/plain, Size: 26463 bytes --]

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-bisect
# Mon Mar  9 02:06:21 2009
#
CONFIG_SCHED_MC=y
CONFIG_MMU=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_BUG=y
CONFIG_NO_IOMEM=y
CONFIG_NO_DMA=y
CONFIG_S390=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_TREE=y
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_NS=y
# CONFIG_CGROUP_FREEZER is not set
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_RT_GROUP_SCHED is not set
# CONFIG_USER_SCHED is not set
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_CPUACCT=y
# CONFIG_RESOURCE_COUNTERS is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
# CONFIG_COMPAT_BRK is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_MARKERS is not set
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_KPROBES is not set
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_LBD=y
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_LSF is not set
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y
# CONFIG_FREEZER is not set

#
# Base setup
#

#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_64BIT is not set
CONFIG_32BIT=y
CONFIG_SMP=y
CONFIG_NR_CPUS=32
CONFIG_HOTPLUG_CPU=y
CONFIG_MATHEMU=y
CONFIG_AUDIT_ARCH=y
CONFIG_S390_SWITCH_AMODE=y
CONFIG_S390_EXEC_PROTECT=y

#
# Code generation options
#
CONFIG_MARCH_G5=y
# CONFIG_MARCH_Z900 is not set
# CONFIG_MARCH_Z990 is not set
# CONFIG_MARCH_Z9_109 is not set
CONFIG_PACK_STACK=y
# CONFIG_CHECK_STACK is not set
# CONFIG_WARN_STACK is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y

#
# Kernel preemption
#
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MIGRATION=y
# CONFIG_RESOURCES_64BIT is not set
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y

#
# I/O subsystem configuration
#
CONFIG_MACHCHK_WARNING=y
CONFIG_QDIO=y
# CONFIG_QDIO_DEBUG is not set
CONFIG_CHSC_SCH=m

#
# Misc
#
CONFIG_IPL=y
# CONFIG_IPL_TAPE is not set
CONFIG_IPL_VM=y
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_FORCE_MAX_ZONEORDER=9
# CONFIG_PROCESS_DEBUG is not set
CONFIG_PFAULT=y
# CONFIG_SHARED_KERNEL is not set
CONFIG_CMM=y
CONFIG_CMM_PROC=y
# CONFIG_PAGE_STATES is not set
# CONFIG_VIRT_TIMER is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_SCHED_HRTICK is not set
CONFIG_S390_HYPFS_FS=y
CONFIG_KEXEC=y
# CONFIG_ZFCPDUMP is not set
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_IUCV=y
CONFIG_AFIUCV=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_ASK_IP_FIB_HASH=y
# CONFIG_IP_FIB_TRIE is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_PNP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
# CONFIG_IPV6 is not set
# CONFIG_NETLABEL is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_DCCP=m
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NETFILTER_TPROXY is not set
CONFIG_NETFILTER_XTABLES=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_VS=m
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_DCCP=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_PROTO_UDPLITE=m
CONFIG_NF_NAT_PROTO_SCTP=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
# CONFIG_IP_NF_SECURITY is not set
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_ULOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
CONFIG_IP_DCCP=m
CONFIG_INET_DCCP_DIAG=m
CONFIG_IP_DCCP_ACKVEC=y

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
CONFIG_IP_DCCP_CCID2=m
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
# CONFIG_IP_DCCP_CCID3 is not set
# CONFIG_IP_DCCP_TFRC_LIB is not set

#
# DCCP Kernel Hacking
#
# CONFIG_IP_DCCP_DEBUG is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_MSG is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
CONFIG_TIPC=m
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_ZONES=3
CONFIG_TIPC_CLUSTERS=1
CONFIG_TIPC_NODES=255
CONFIG_TIPC_SLAVE_NODES=0
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
# CONFIG_TIPC_DEBUG is not set
# CONFIG_ATM is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
# CONFIG_NET_SCH_MULTIQ is not set
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
# CONFIG_NET_ACT_SKBEDIT is not set
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_CAN is not set
CONFIG_AF_RXRPC=m
# CONFIG_AF_RXRPC_DEBUG is not set
CONFIG_RXKAD=m
# CONFIG_PHONET is not set
CONFIG_FIB_RULES=y
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_PCMCIA is not set
CONFIG_CCW=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
CONFIG_SYS_HYPERVISOR=y
CONFIG_CONNECTOR=m
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=24576
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
CONFIG_ATA_OVER_ETH=m

#
# S/390 block device drivers
#
CONFIG_BLK_DEV_XPRAM=m
CONFIG_DCSSBLK=m
CONFIG_DASD=m
# CONFIG_DASD_PROFILE is not set
CONFIG_DASD_ECKD=m
CONFIG_DASD_FBA=m
CONFIG_DASD_DIAG=m
# CONFIG_DASD_EER is not set
CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_93CX6=m
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_C2PORT is not set

#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
# CONFIG_SCSI_DMA is not set
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_FC_TGT_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_HOST_SMP=y
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=m
# CONFIG_SCSI_DEBUG is not set
CONFIG_ZFCP=m
# CONFIG_SCSI_DH is not set
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
CONFIG_NETDEVICES=y
CONFIG_IFB=m
# CONFIG_DUMMY is not set
CONFIG_BONDING=m
# CONFIG_MACVLAN is not set
CONFIG_EQUALIZER=m
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
# CONFIG_WAN is not set

#
# S/390 network device drivers
#
CONFIG_LCS=m
CONFIG_CTCM=m
CONFIG_NETIUCV=m
CONFIG_SMSGIUCV=m
CONFIG_CLAW=m
CONFIG_QETH=m
CONFIG_QETH_L2=m
CONFIG_QETH_L3=m
CONFIG_CCWGROUP=m
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set

#
# Character devices
#
CONFIG_DEVKMEM=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_HW_RANDOM=m
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HANGCHECK_TIMER=m

#
# S/390 character device drivers
#
CONFIG_TN3270=y
CONFIG_TN3270_TTY=y
CONFIG_TN3270_FS=m
CONFIG_TN3270_CONSOLE=y
CONFIG_TN3215=y
CONFIG_TN3215_CONSOLE=y
CONFIG_CCW_CONSOLE=y
CONFIG_SCLP_TTY=y
CONFIG_SCLP_CONSOLE=y
CONFIG_SCLP_VT220_TTY=y
CONFIG_SCLP_VT220_CONSOLE=y
CONFIG_SCLP_CPI=m
CONFIG_S390_TAPE=m

#
# S/390 tape interface support
#
CONFIG_S390_TAPE_BLOCK=y

#
# S/390 tape hardware support
#
CONFIG_S390_TAPE_34XX=m
CONFIG_S390_TAPE_3590=m
CONFIG_VMLOGRDR=m
CONFIG_VMCP=m
CONFIG_MONREADER=m
CONFIG_MONWRITER=m
CONFIG_S390_VMUR=m
# CONFIG_POWER_SUPPLY is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
# CONFIG_WATCHDOG is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_STAGING is not set
CONFIG_STAGING_EXCLUDE_BUILD=y

#
# File systems
#
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_JBD=m
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=m
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_GENERIC_ACL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="utf8"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=m

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
CONFIG_ROMFS_FS=m
# CONFIG_SYSV_FS is not set
CONFIG_UFS_FS=m
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_UFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFSD is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
# CONFIG_SUNRPC_REGISTER_V4 is not set
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_SPKM3=m
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
CONFIG_IBM_PARTITION=y
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION 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 is not set
# CONFIG_SYSV68_PARTITION is not set
CONFIG_NLS=m
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=m
# CONFIG_NLS_CODEPAGE_852 is not set
# 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 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# 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=m
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DLM_DEBUG=y

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_FRAME_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y

#
# Tracers
#
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_CONTEXT_SWITCH_TRACER is not set
# CONFIG_BOOT_TRACER is not set
# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
# CONFIG_SAMPLES is not set
# CONFIG_DEBUG_PAGEALLOC is not set

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
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_ENABLE_SECMARK_DEFAULT is not set
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=m
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=m

#
# Block modes
#
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_CTR=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
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=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_LZO=m

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
CONFIG_ZCRYPT=m
# CONFIG_ZCRYPT_MONOLITHIC is not set
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_S390_PRNG=m

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_ZLIB_INFLATE=m
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=m
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_PLIST=y
# CONFIG_VIRTUALIZATION is not set

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Peter Zijlstra]

On Mon, 2009-03-09 at 02:53 +0100, Frans Pop wrote:
> Follow-up to an issue reported on the linux-s390 list, seen in the 
> Hercules S/390 emulator.
> 
> On Sunday 08 March 2009, Frans Pop wrote:
> > Well, not quite. It does boot successfully and I do get a login prompt.
> > I can also login on the console or connect with SSH, but in both cases
> > the system again gets into some loop before I actually get a shell
> > prompt.
> 
> During the bisection series the system would sometimes enter the loop 
> during the boot procedure, before I tried to logon. After it enters the 
> loop one processor just goes racing at 100%.

Where? Do you have NMI watchdog output, or even sysrq-t?

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

On Monday 09 March 2009, you wrote:
> On Mon, 2009-03-09 at 02:53 +0100, Frans Pop wrote:
> > Follow-up to an issue reported on the linux-s390 list, seen in the
> > Hercules S/390 emulator.
> >
> > On Sunday 08 March 2009, Frans Pop wrote:
> > > Well, not quite. It does boot successfully and I do get a login
> > > prompt. I can also login on the console or connect with SSH, but in
> > > both cases the system again gets into some loop before I actually
> > > get a shell prompt.
> >
> > During the bisection series the system would sometimes enter the loop
> > during the boot procedure, before I tried to logon. After it enters
> > the loop one processor just goes racing at 100%.
>
> Where? Do you have NMI watchdog output, or even sysrq-t?

I'm afraid I have no idea.

AFAICT s390 does not have an NMI watchdog. And I have no idea how I could 
trigger a sysrq given that I can't login and only have a dumb console or 
SSH session to work with anyway.

Maybe the people on the linux-s390 list have some suggestions, or even the 
Hercules developers?

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Hendrik Brueckner]

On Mon, Mar 09, 2009 at 10:25:51AM +0100, Frans Pop wrote:
> > Where? Do you have NMI watchdog output, or even sysrq-t?
> 
> I'm afraid I have no idea.
> 
> AFAICT s390 does not have an NMI watchdog. And I have no idea how I could 
> trigger a sysrq given that I can't login and only have a dumb console or 
> SSH session to work with anyway.
If SSH works,  try to trigger the sysrq function trough /proc/sysrq-trigger,
e.g.  echo l > /proc/sysrq-trigger

Regards
  Hendrik Brueckner

-- 
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter
Geschaeftsfuehrung: Erich Baier
Sitz der Gesellschaft: Boeblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

On Monday 09 March 2009, Hendrik Brueckner wrote:
> On Mon, Mar 09, 2009 at 10:25:51AM +0100, Frans Pop wrote:
> > > Where? Do you have NMI watchdog output, or even sysrq-t?
> >
> > I'm afraid I have no idea.
> >
> > AFAICT s390 does not have an NMI watchdog. And I have no idea how I
> > could trigger a sysrq given that I can't login and only have a dumb
> > console or SSH session to work with anyway.
>
> If SSH works,  try to trigger the sysrq function trough
> /proc/sysrq-trigger, e.g.  echo l > /proc/sysrq-trigger

Yeah, I'm aware of that. Problem is that the loop starts when I try to log 
in over SSH. I do get the welcome message, but I never get a prompt. And 
as soon as the loop starts, the system is completely unresponsive. Even a 
shutdown triggered from the system console does nothing. Only thing I can 
do is a hard "poweroff".

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Jan Glauber]

On Mon, 2009-03-09 at 10:25 +0100, Frans Pop wrote:
> On Monday 09 March 2009, you wrote:
> > On Mon, 2009-03-09 at 02:53 +0100, Frans Pop wrote:
> > > Follow-up to an issue reported on the linux-s390 list, seen in the
> > > Hercules S/390 emulator.
> > >
> > > On Sunday 08 March 2009, Frans Pop wrote:
> > > > Well, not quite. It does boot successfully and I do get a login
> > > > prompt. I can also login on the console or connect with SSH, but in
> > > > both cases the system again gets into some loop before I actually
> > > > get a shell prompt.
> > >
> > > During the bisection series the system would sometimes enter the loop
> > > during the boot procedure, before I tried to logon. After it enters
> > > the loop one processor just goes racing at 100%.
> >
> > Where? Do you have NMI watchdog output, or even sysrq-t?
> 
> I'm afraid I have no idea.
> 
> AFAICT s390 does not have an NMI watchdog. And I have no idea how I could 
> trigger a sysrq given that I can't login and only have a dumb console or 
> SSH session to work with anyway.

You can try to trigger sysrq by ^-, so to get the task view type: .^-t

Cheers, Jan

> Maybe the people on the linux-s390 list have some suggestions, or even the 
> Hercules developers?
> --
> To unsubscribe from this list: send the line "unsubscribe linux-s390" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

On Thursday 12 March 2009, Jan Glauber wrote:
> > AFAICT s390 does not have an NMI watchdog. And I have no idea how I
> > could trigger a sysrq given that I can't login and only have a dumb
> > console or SSH session to work with anyway.
>
> You can try to trigger sysrq by ^-, so to get the task view type: .^-t

Thanks a lot Jan! On a running system that works, so now the only question 
is if it also works when the system is looping. Will try later.

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

On Thursday 12 March 2009, Frans Pop wrote:
> On Thursday 12 March 2009, Jan Glauber wrote:
> > > AFAICT s390 does not have an NMI watchdog. And I have no idea how I
> > > could trigger a sysrq given that I can't login and only have a dumb
> > > console or SSH session to work with anyway.
> >
> > You can try to trigger sysrq by ^-, so to get the task view type:
> > .^-t
>
> Thanks a lot Jan! On a running system that works, so now the only
> question is if it also works when the system is looping. Will try
> later.

Unfortunately it does not work when the system is hung, not even if I try 
it as a "priority" command.

We're still working on my other 2.6.28 regression. I guess the smart thing 
to do is wait and see what comes out of that first, so let's put this one 
on hold for now.

Cheers,
FJP

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

On Monday 09 March 2009, Peter Zijlstra wrote:
> On Mon, 2009-03-09 at 02:53 +0100, Frans Pop wrote:
> > Follow-up to an issue reported on the linux-s390 list, seen in the
> > Hercules S/390 emulator.
> >
> > On Sunday 08 March 2009, Frans Pop wrote:
> > > Well, not quite. It does boot successfully and I do get a login
> > > prompt. I can also login on the console or connect with SSH, but in
> > > both cases the system again gets into some loop before I actually
> > > get a shell prompt.
> >
> > During the bisection series the system would sometimes enter the loop
> > during the boot procedure, before I tried to logon. After it enters
> > the loop one processor just goes racing at 100%.
>
> Where? Do you have NMI watchdog output, or even sysrq-t?

Hmmm. Your commit log message for ca109491f612aab5c8152207631c0444f63da97f 
does explicitly mention the risk of an infinite loop, as does a comment 
in hrtimer_enqueue_reprogram().

Any chance the cause is there? Any way to test for that?

Cheers,
FJP

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Peter Zijlstra]

On Mon, 2009-03-09 at 16:43 +0100, Frans Pop wrote:
> On Monday 09 March 2009, Peter Zijlstra wrote:
> > On Mon, 2009-03-09 at 02:53 +0100, Frans Pop wrote:
> > > Follow-up to an issue reported on the linux-s390 list, seen in the
> > > Hercules S/390 emulator.
> > >
> > > On Sunday 08 March 2009, Frans Pop wrote:
> > > > Well, not quite. It does boot successfully and I do get a login
> > > > prompt. I can also login on the console or connect with SSH, but in
> > > > both cases the system again gets into some loop before I actually
> > > > get a shell prompt.
> > >
> > > During the bisection series the system would sometimes enter the loop
> > > during the boot procedure, before I tried to logon. After it enters
> > > the loop one processor just goes racing at 100%.
> >
> > Where? Do you have NMI watchdog output, or even sysrq-t?
> 
> Hmmm. Your commit log message for ca109491f612aab5c8152207631c0444f63da97f 
> does explicitly mention the risk of an infinite loop, as does a comment 
> in hrtimer_enqueue_reprogram().
> 
> Any chance the cause is there? Any way to test for that?

a6037b61c2f5fc99c57c15b26d7cfa58bbb34008 should have fixed the mentioned
issue (along with the deadlock mentioned in the changelog).

The issue was that you could enqueue an expired timer, run it in place,
enqueue it again, etc..

The current code would not run it in place, but instead fire a softirq
to handle it. That opens up a preemption window.

Note, this can only happen with HRTIMER_RESTART timers, and those should
be careful to avoid hogging the CPU anyway.

Doesn't this s390 thing have a sysrq key you can press to get some
traces out?

Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

[Frans Pop]

On Monday 09 March 2009, Peter Zijlstra wrote:
> > Hmmm. Your commit log message for
> > ca109491f612aab5c8152207631c0444f63da97f does explicitly mention the
> > risk of an infinite loop, as does a comment in
> > hrtimer_enqueue_reprogram().
> >
> > Any chance the cause is there? Any way to test for that?
>
> a6037b61c2f5fc99c57c15b26d7cfa58bbb34008 should have fixed the
> mentioned issue (along with the deadlock mentioned in the changelog).

OK. Thanks for explaining.

> Doesn't this s390 thing have a sysrq key you can press to get some
> traces out?

As mentioned in my first reply this morning, AFAIK I have no way to 
trigger the kernel's sysrq function.

The emulator does have an option to trace what's running on it. The 
problem is that I have no idea myself how to translate that output to 
what the kernel is doing, nor what would be needed to be able to do such 
a translation. If someone else does know how to use it, I'd be happy to 
provide the info.

Note that the last few days I've been tracing two other issues that 
appeared since 2.6.26 in the same environment, both of which are timing 
related. See:
- http://lkml.org/lkml/2009/3/9/112
  which fixes http://marc.info/?t=123629272600002&r=1&w=2
- http://lkml.org/lkml/2009/3/9/166

Hope that helps,
FJP

Re: [BUG,2.6.29-rc7,s390] SOLVED -- System goes into endless loop during boot or logon

[Frans Pop]

On Monday 09 March 2009, Frans Pop wrote:
> Follow-up to an issue reported on the linux-s390 list, seen in the
> Hercules S/390 emulator.
>
> On Sunday 08 March 2009, Frans Pop wrote:
> > Well, not quite. It does boot successfully and I do get a login
> > prompt. I can also login on the console or connect with SSH, but in
> > both cases the system again gets into some loop before I actually get
> > a shell prompt.
>
> During the bisection series the system would sometimes enter the loop
> during the boot procedure, before I tried to logon. After it enters the
> loop one processor just goes racing at 100%.
>
> I've bisected this to the following set of three patches:
> commit ca109491f612aab5c8152207631c0444f63da97f
> Author: Peter Zijlstra <peterz@infradead.org>
> Date:   Tue Nov 25 12:43:51 2008 +0100
>     hrtimer: removing all ur callback modes
> commit 37810659ea7d9572c5ac284ade272f806ef8f788
>     hrtimer: removing all ur callback modes, fix hotplug
> commit a0a99b227da57f81319dd239bc4de811b0f530ec
>     hrtimer: removing all ur callback modes, fix
>
> I've not tried to bisect between these patches as the last two are
> fixes. If needed I can do though.

Just for the record, this issue was solved with the following commit (that 
also fixed the hang I saw during boot with 2.6.28):

commit 4fa81ed27781a12f6303b9263056635ae74e3e21
Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date:   Wed Mar 18 13:27:32 2009 +0100
    [S390] __div64_31 broken for CONFIG_MARCH_G5