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* [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
@ 2019-02-09 17:04 Mikael Pettersson
  2019-02-09 18:19 ` James Bottomley
  0 siblings, 1 reply; 20+ messages in thread
From: Mikael Pettersson @ 2019-02-09 17:04 UTC (permalink / raw)
  To: Linux SPARC Kernel Mailing List, linux-block; +Cc: linux-kernel

4.20 and earlier kernels boot fine on my Sun Blade 2500 (UltraSPARC
IIIi), but the 5.0-rc kernels consistently experience a 5 minute delay
late during boot, after enabling networking but before allowing user
logins.  E.g. 5.0-rc5 dmesg has:

[Fri Feb  8 17:13:17 2019] random: dbus-daemon: uninitialized urandom
read (12 bytes read)
[Fri Feb  8 17:18:14 2019] random: crng init done

During this interval the machine answers pings but won't allow user
logins either on the console or over the network.

A git bisect identified commit f664a3cc17b7d0a2bc3b3ab96181e1029b0ec0e6
Author: Jens Axboe <axboe@kernel.dk>
Date:   Thu Nov 1 16:36:27 2018 -0600

    scsi: kill off the legacy IO path

as the point where this 5m delay was introduced.

My older kernels all have CONFIG_SCSI_MQ_DEFAULT=N, which the above
commit effectively forces to Y.
Rebuilding 4.20 with CONFIG_SCSI_MQ_DEFAULT=Y also triggers the 5m
delay behaviour.

I haven't seen this behaviour on my x86-64 boxes, so presumably it's
related to the sparc64 kernel or this machine's SCSI adapter.

.config and dmesg below.

/Mikael

#
# Automatically generated file; DO NOT EDIT.
# Linux/sparc64 4.20.0 Kernel Configuration
#

#
# Compiler: gcc (GCC) 7.4.1 20181227
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=70401
CONFIG_CLANG_VERSION=0
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-blkmq"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_IRQ_PREFLOW_FASTEOI=y
CONFIG_IRQ_DOMAIN=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_SPARSE_IRQ=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_PSI is not set
# CONFIG_CPU_ISOLATION is not set

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_NAMESPACES is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
# CONFIG_SGETMASK_SYSCALL is not set
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_PRINTK_NMI=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
# CONFIG_AIO is not set
CONFIG_ADVISE_SYSCALLS=y
# CONFIG_MEMBARRIER is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_BPF_SYSCALL is not set
# CONFIG_USERFAULTFD is not set
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
# CONFIG_PC104 is not set

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_PROFILING is not set
CONFIG_64BIT=y
CONFIG_SPARC=y
CONFIG_SPARC64=y
CONFIG_ARCH_DEFCONFIG="arch/sparc/configs/sparc64_defconfig"
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_ARCH_ATU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_AUDIT_ARCH=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_MMU=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_ARCH_SUPPORTS_UPROBES=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_SCHED_HRTICK=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_SPARC64_SMP=y
CONFIG_EARLYFB=y
CONFIG_SECCOMP=y
CONFIG_HOTPLUG_CPU=y

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
CONFIG_US3_MC=y
CONFIG_NUMA=y
CONFIG_NODES_SHIFT=4
CONFIG_NODES_SPAN_OTHER_NODES=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_FORCE_MAX_ZONEORDER=13
# CONFIG_HIBERNATION is not set
# CONFIG_PM is not set
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_CMDLINE_BOOL is not set

#
# Bus options (PCI etc.)
#
CONFIG_SBUS=y
CONFIG_SBUSCHAR=y
# CONFIG_SUN_LDOMS is not set
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_SYSCALL=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
# CONFIG_HOTPLUG_PCI is not set

#
# PCI controller drivers
#

#
# Cadence PCIe controllers support
#
# CONFIG_PCIE_CADENCE_HOST is not set
# CONFIG_PCI_FTPCI100 is not set
# CONFIG_PCI_HOST_GENERIC is not set
# CONFIG_PCIE_XILINX is not set

#
# DesignWare PCI Core Support
#

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# CONFIG_PCCARD is not set
CONFIG_SUN_OPENPROMFS=m
CONFIG_SPARC64_PCI=y
CONFIG_SPARC64_PCI_MSI=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y

#
# Misc Linux/SPARC drivers
#
CONFIG_SUN_OPENPROMIO=m
CONFIG_OBP_FLASH=m
# CONFIG_TADPOLE_TS102_UCTRL is not set
# CONFIG_BBC_I2C is not set
# CONFIG_ENVCTRL is not set
# CONFIG_DISPLAY7SEG is not set
# CONFIG_ORACLE_DAX is not set

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_HAVE_OPROFILE=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_NMI_WATCHDOG=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_RCU_TABLE_FREE=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ODD_RT_SIGACTION=y
CONFIG_OLD_SIGSUSPEND=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_CPU_NO_EFFICIENT_FFS=y
# CONFIG_REFCOUNT_FULL is not set

#
# GCOV-based kernel profiling
#
CONFIG_PLUGIN_HOSTCC=""
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# 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=y
# CONFIG_KARMA_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
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_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_TRANSPARENT_HUGEPAGE is not set
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_BENCHMARK is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=m
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_SIT is not set
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
# CONFIG_BPF_JIT is not set
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
# CONFIG_LWTUNNEL is not set
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y
# CONFIG_FAILOVER is not set
CONFIG_HAVE_EBPF_JIT=y

#
# Device Drivers
#

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m

#
# Bus devices
#
# CONFIG_CONNECTOR is not set
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_OF=y
CONFIG_OF_PROMTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_NET=y
CONFIG_OF_MDIO=y
# CONFIG_OF_OVERLAY is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_AX88796 is not set
CONFIG_PARPORT_1284=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=m
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_DEV_UMEM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SKD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set

#
# NVME Support
#
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_FC is not set

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set

#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_ALTERA_STAPL is not set

#
# Intel MIC & related support
#

#
# Intel MIC Bus Driver
#

#
# SCIF Bus Driver
#

#
# VOP Bus Driver
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCIF Driver
#

#
# Intel MIC Coprocessor State Management (COSM) Drivers
#

#
# VOP Driver
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_MISC_RTSX_USB is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_MQ_DEFAULT=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=m
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLOGICPTI is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SUNESP is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
CONFIG_ATA_VERBOSE_ERROR=y
# CONFIG_SATA_PMP is not set

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_AHCI_CEVA is not set
# CONFIG_AHCI_QORIQ is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
CONFIG_PATA_ALI=m
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_NETDEVICES=y
# CONFIG_NET_CORE is not set
# CONFIG_ARCNET is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_GRETH is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=m
CONFIG_TIGON3_HWMON=y
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_NET_VENDOR_CORTINA is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BUS_MUX_MMIOREG is not set
# CONFIG_MDIO_HISI_FEMAC is not set
# CONFIG_MDIO_MSCC_MIIM is not set
# CONFIG_MDIO_OCTEON is not set
# CONFIG_MDIO_THUNDER is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_ASIX_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
CONFIG_FIXED_PHY=y
# CONFIG_ICPLUS_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_USB_NET_DRIVERS is not set
# CONFIG_WLAN is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_NET_FAILOVER is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_ATMEL_CAPTOUCH is not set
# CONFIG_INPUT_BMA150 is not set
# CONFIG_INPUT_E3X0_BUTTON is not set
CONFIG_INPUT_SPARCSPKR=y
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_KXTJ9 is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_CMA3000 is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVMEM is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_SUNCORE=y
# CONFIG_SERIAL_SUNZILOG is not set
CONFIG_SERIAL_SUNSU=y
CONFIG_SERIAL_SUNSU_CONSOLE=y
# CONFIG_SERIAL_SUNSAB is not set
# CONFIG_SERIAL_SUNHV is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
# CONFIG_ADI is not set

#
# I2C support
#
CONFIG_I2C=m
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=m
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
CONFIG_I2C_ALI1535=m
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=m
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=m

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_PINCTRL is not set
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FTSTEUTATES is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX6621 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83773G is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_ULTRA45 is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
# CONFIG_WATCHDOG_SYSFS is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
CONFIG_ALIM7101_WDT=m
# CONFIG_I6300ESB_WDT is not set
# CONFIG_WATCHDOG_CP1XXX is not set
# CONFIG_WATCHDOG_RIO is not set
# CONFIG_WATCHDOG_SUN4V is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_ACT8945A is not set
# CONFIG_MFD_AT91_USART is not set
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RK808 is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TI_LP87565 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_VGA_ARB is not set
# CONFIG_DRM is not set
# CONFIG_DRM_DP_CEC is not set

#
# ACP (Audio CoProcessor) Configuration
#

#
# AMD Library routines
#

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set

#
# Frame buffer hardware drivers
#
# CONFIG_FB_GRVGA is not set
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_SBUS is not set
CONFIG_FB_XVR500=y
# CONFIG_FB_XVR2500 is not set
# CONFIG_FB_XVR1000 is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SM712 is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_LOGO_SUN_CLUT224=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_SEQ_DEVICE=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_HRTIMER=m
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_PROC_FS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_SEQ_MIDI_EVENT=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set

#
# HD-Audio
#
# CONFIG_SND_HDA_INTEL is not set
CONFIG_SND_HDA_PREALLOC_SIZE=64
# CONFIG_SND_USB is not set
# CONFIG_SND_SPARC is not set
# CONFIG_SND_SOC is not set

#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=m

#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACCUTOUCH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_ITE is not set
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_REDRAGON is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTI is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEAM is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set

#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
# CONFIG_USB_EHCI_HCD is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PCI=m
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_GADGET is not set
# CONFIG_TYPEC is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_PROC is not set
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_HYM8563 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12026 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV8803 is not set

#
# SPI RTC drivers
#
CONFIG_RTC_I2C_AND_SPI=m

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
CONFIG_RTC_DRV_M48T59=y
# CONFIG_RTC_DRV_MSM6242 is not set
CONFIG_RTC_DRV_BQ4802=y
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_ZYNQMP is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_SUN4V=y
CONFIG_RTC_DRV_STARFIRE=y
# CONFIG_RTC_DRV_FTRTC010 is not set
# CONFIG_RTC_DRV_SNVS is not set
# CONFIG_RTC_DRV_R7301 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
# CONFIG_UIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set

#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#

#
# Broadcom SoC drivers
#

#
# NXP/Freescale QorIQ SoC drivers
#

#
# i.MX SoC drivers
#

#
# Qualcomm SoC drivers
#
# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# CONFIG_XILINX_VCU is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_CADENCE_DP is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_MAPPHONE_MDM6600 is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_LIBNVDIMM is not set
# CONFIG_DAX is not set
CONFIG_NVMEM=y

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# CONFIG_FPGA is not set
# CONFIG_FSI is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set

#
# File systems
#
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_MANDATORY_FILE_LOCKING is not set
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
# CONFIG_PROC_PAGE_MONITOR is not set
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_MEMFD_CREATE=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
CONFIG_NFS_V3=m
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_SWAP is not set
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
# CONFIG_NFSD_V4 is not set
CONFIG_GRACE_PERIOD=m
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
# 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 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 is not set
# CONFIG_NLS_ISO8859_1 is not set
# 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 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=m

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_STATIC_USERMODEHELPER is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
# CONFIG_SECURITY_YAMA is not set
# CONFIG_INTEGRITY is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
# 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_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_AEGIS128L is not set
# CONFIG_CRYPTO_AEGIS256 is not set
# CONFIG_CRYPTO_MORUS640 is not set
# CONFIG_CRYPTO_MORUS1280 is not set
# CONFIG_CRYPTO_SEQIV is not set
# CONFIG_CRYPTO_ECHAINIV is not set

#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CFB is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_OFB is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32C_SPARC64 is not set
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MD5_SPARC64 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# 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 is not set
# CONFIG_CRYPTO_SHA1_SPARC64 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA256_SPARC64 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA512_SPARC64 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_SM3 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
# CONFIG_CRYPTO_AES_SPARC64 is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAMELLIA_SPARC64 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_DES_SPARC64 is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SM4 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_JITTERENTROPY is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_HW is not set

#
# Certificates for signature checking
#

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
# CONFIG_XZ_DEC is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_IOMMU_HELPER=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_FONT_SUPPORT=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_FONT_SUN8x16=y
# CONFIG_FONT_SUN12x22 is not set
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_SBITMAP=y
# CONFIG_STRING_SELFTEST is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set

#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_STACKTRACE is not set
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_HAVE_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_RCU_PERF_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
# CONFIG_MEMTEST is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_UBSAN is not set
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_DEBUG_DCFLUSH is not set


[Sat Feb  9 17:07:21 2019] PROMLIB: Sun IEEE Boot Prom 'OBP 4.9.5
2003/09/15 13:59'
[Sat Feb  9 17:07:21 2019] PROMLIB: Root node compatible:
[Sat Feb  9 17:07:21 2019] Linux version 4.20.0-blkmq (mikpe@lauter)
(gcc version 7.4.1 20181227 (GCC)) #1 SMP Sat Feb 9 16:38:45 CET 2019
[Sat Feb  9 17:07:21 2019] printk: bootconsole [earlyprom0] enabled
[Sat Feb  9 17:07:21 2019] ARCH: SUN4U
[Sat Feb  9 17:07:21 2019] Ethernet address: 00:03:ba:68:d2:e0
[Sat Feb  9 17:07:21 2019] MM: PAGE_OFFSET is 0xfff0000000000000
(max_phys_bits == 42)
[Sat Feb  9 17:07:21 2019] MM: VMALLOC [0x0000000100000000 -->
0x000c000000000000]
[Sat Feb  9 17:07:21 2019] MM: VMEMMAP [0x000c000000000000 -->
0x0018000000000000]
[Sat Feb  9 17:07:21 2019] Kernel: Using 2 locked TLB entries for main
kernel image.
[Sat Feb  9 17:07:21 2019] Remapping the kernel...
[Sat Feb  9 17:07:21 2019] done.
[Sat Feb  9 17:07:21 2019] OF stdout device is:
/pci@1e,600000/isa@7/serial@0,3f8
[Sat Feb  9 17:07:21 2019] PROM: Built device tree with 118458 bytes of memory.
[Sat Feb  9 17:07:21 2019] Allocated 24576 bytes for kernel page tables.
[Sat Feb  9 17:07:21 2019] Zone ranges:
[Sat Feb  9 17:07:21 2019]   Normal   [mem
0x0000000200000000-0x000000123feddfff]
[Sat Feb  9 17:07:22 2019] Movable zone start for each node
[Sat Feb  9 17:07:22 2019] Early memory node ranges
[Sat Feb  9 17:07:22 2019]   node   0: [mem
0x0000000200000000-0x000000023fffffff]
[Sat Feb  9 17:07:22 2019]   node   1: [mem
0x0000001200000000-0x000000123effdfff]
[Sat Feb  9 17:07:22 2019]   node   1: [mem
0x000000123f000000-0x000000123fd09fff]
[Sat Feb  9 17:07:22 2019]   node   1: [mem
0x000000123fe0e000-0x000000123feb3fff]
[Sat Feb  9 17:07:22 2019]   node   1: [mem
0x000000123fec4000-0x000000123feddfff]
[Sat Feb  9 17:07:22 2019] Zeroed struct page in unavailable ranges: 139 pages
[Sat Feb  9 17:07:22 2019] Initmem setup node 0 [mem
0x0000000200000000-0x000000023fffffff]
[Sat Feb  9 17:07:22 2019] On node 0 totalpages: 131072
[Sat Feb  9 17:07:22 2019]   Normal zone: 1024 pages used for memmap
[Sat Feb  9 17:07:22 2019]   Normal zone: 0 pages reserved
[Sat Feb  9 17:07:22 2019]   Normal zone: 131072 pages, LIFO batch:31
[Sat Feb  9 17:07:22 2019] Initmem setup node 1 [mem
0x0000001200000000-0x000000123feddfff]
[Sat Feb  9 17:07:22 2019] On node 1 totalpages: 130788
[Sat Feb  9 17:07:22 2019]   Normal zone: 1023 pages used for memmap
[Sat Feb  9 17:07:22 2019]   Normal zone: 0 pages reserved
[Sat Feb  9 17:07:22 2019]   Normal zone: 130788 pages, LIFO batch:31
[Sat Feb  9 17:07:22 2019] Booting Linux...
[Sat Feb  9 17:07:22 2019] CPU CAPS:
[flush,stbar,swap,muldiv,v9,ultra3,mul32,div32]
[Sat Feb  9 17:07:22 2019] CPU CAPS: [v8plus,vis,vis2]
[Sat Feb  9 17:07:22 2019] percpu: Embedded 10 pages/cpu
@(____ptrval____) s42968 r8192 d30760 u4194304
[Sat Feb  9 17:07:22 2019] pcpu-alloc: s42968 r8192 d30760 u4194304
alloc=1*4194304
[Sat Feb  9 17:07:22 2019] pcpu-alloc: [0] 0 [1] 1
[Sat Feb  9 17:07:22 2019] Built 2 zonelists, mobility grouping on.
Total pages: 259813
[Sat Feb  9 17:07:22 2019] Policy zone: Normal
[Sat Feb  9 17:07:22 2019] Kernel command line: ro root=/dev/sda5
SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=sv-latin1
[Sat Feb  9 17:07:23 2019] Sorting __ex_table...
[Sat Feb  9 17:07:23 2019] Memory: 2067656K/2094880K available (3595K
kernel code, 230K rwdata, 992K rodata, 240K init, 269K bss, 27224K
reserved, 0K cma-reserved)
[Sat Feb  9 17:07:23 2019] SLUB: HWalign=32, Order=0-3, MinObjects=0,
CPUs=2, Nodes=16
[Sat Feb  9 17:07:23 2019] rcu: Hierarchical RCU implementation.
[Sat Feb  9 17:07:23 2019] rcu: RCU calculated value of
scheduler-enlistment delay is 10 jiffies.
[Sat Feb  9 17:07:23 2019] NR_IRQS: 2048, nr_irqs: 2048, preallocated irqs: 1
[Sat Feb  9 17:07:23 2019] clocksource: stick: mask:
0xffffffffffffffff max_cycles: 0x2c47f4ee7, max_idle_ns: 440795202497
ns
[Sat Feb  9 17:07:23 2019] clocksource: mult[53555555] shift[24]
[Sat Feb  9 17:07:23 2019] clockevent: mult[3126e98] shift[32]
[Sat Feb  9 17:07:23 2019] Console: colour dummy device 80x25
[Sat Feb  9 17:07:23 2019] printk: console [tty0] enabled
[Sat Feb  9 17:07:23 2019] printk: bootconsole [earlyprom0] disabled
[Sat Feb  9 17:07:23 2019] Calibrating delay using timer specific
routine.. 24.01 BogoMIPS (lpj=120056)
[Sat Feb  9 17:07:23 2019] pid_max: default: 32768 minimum: 301
[Sat Feb  9 17:07:23 2019] LSM: Security Framework initializing
[Sat Feb  9 17:07:23 2019] Dentry cache hash table entries: 262144
(order: 8, 2097152 bytes)
[Sat Feb  9 17:07:23 2019] Inode-cache hash table entries: 131072
(order: 7, 1048576 bytes)
[Sat Feb  9 17:07:23 2019] Mount-cache hash table entries: 4096
(order: 2, 32768 bytes)
[Sat Feb  9 17:07:23 2019] Mountpoint-cache hash table entries: 4096
(order: 2, 32768 bytes)
[Sat Feb  9 17:07:23 2019] rcu: Hierarchical SRCU implementation.
[Sat Feb  9 17:07:23 2019] smp: Bringing up secondary CPUs ...
[Sat Feb  9 17:07:23 2019] CPU 0: synchronized TICK with master CPU
(last diff 0 cycles, maxerr 5 cycles)
[Sat Feb  9 17:07:23 2019] smp: Brought up 2 nodes, 2 CPUs
[Sat Feb  9 17:07:23 2019] devtmpfs: initialized
[Sat Feb  9 17:07:23 2019] random: get_random_u32 called from
bucket_table_alloc.isra.7+0x158/0x18c with crng_init=0
[Sat Feb  9 17:07:23 2019] clocksource: jiffies: mask: 0xffffffff
max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[Sat Feb  9 17:07:23 2019] futex hash table entries: 512 (order: 2, 32768 bytes)
[Sat Feb  9 17:07:23 2019] NET: Registered protocol family 16
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] IRQ pre handler NOT supported.
[Sat Feb  9 17:07:23 2019] /pci@1c,600000: TOMATILLO PCI Bus Module ver[4:0]
[Sat Feb  9 17:07:23 2019] /pci@1c,600000: PCI IO [io
0x7ce01000000-0x7ce01ffffff] offset 7ce01000000
[Sat Feb  9 17:07:23 2019] /pci@1c,600000: PCI MEM [mem
0x7cf00000000-0x7cfffffffff] offset 7cf00000000
[Sat Feb  9 17:07:23 2019] PCI: Scanning PBM /pci@1c,600000
[Sat Feb  9 17:07:23 2019] schizo f0060310: PCI host bridge to bus 0000:00
[Sat Feb  9 17:07:23 2019] pci_bus 0000:00: root bus resource [io
0x7ce01000000-0x7ce01ffffff] (bus address [0x0000-0xffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0000:00: root bus resource [mem
0x7cf00000000-0x7cfffffffff] (bus address [0x00000000-0xffffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0000:00: root bus resource [bus 00]
[Sat Feb  9 17:07:23 2019] pci 0000:00:03.0: [14e4:1647] type 00 class 0x020000
[Sat Feb  9 17:07:23 2019] pci 0000:00:03.0: reg 0x10: [mem
0x7cf00200000-0x7cf003fffff 64bit]
[Sat Feb  9 17:07:23 2019] pci 0000:00:03.0: PME# supported from D3hot
[Sat Feb  9 17:07:23 2019] /pci@1d,700000: TOMATILLO PCI Bus Module ver[4:0]
[Sat Feb  9 17:07:23 2019] /pci@1d,700000: PCI IO [io
0x7c601000000-0x7c601ffffff] offset 7c601000000
[Sat Feb  9 17:07:23 2019] /pci@1d,700000: PCI MEM [mem
0x7c700000000-0x7c7ffffffff] offset 7c700000000
[Sat Feb  9 17:07:23 2019] PCI: Scanning PBM /pci@1d,700000
[Sat Feb  9 17:07:23 2019] schizo f0068dbc: PCI host bridge to bus 0001:00
[Sat Feb  9 17:07:23 2019] pci_bus 0001:00: root bus resource [io
0x7c601000000-0x7c601ffffff] (bus address [0x0000-0xffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0001:00: root bus resource [mem
0x7c700000000-0x7c7ffffffff] (bus address [0x00000000-0xffffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0001:00: root bus resource [bus 00]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.0: [1000:0021] type 00 class 0x010000
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.0: reg 0x10: [io
0x7c601000300-0x7c6010003ff]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.0: reg 0x14: [mem
0x7c700100000-0x7c700101fff 64bit]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.0: reg 0x1c: [mem
0x7c700102000-0x7c700103fff 64bit]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.0: supports D1 D2
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.1: [1000:0021] type 00 class 0x010000
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.1: reg 0x10: [io
0x7c601000400-0x7c6010004ff]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.1: reg 0x14: [mem
0x7c700104000-0x7c700105fff 64bit]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.1: reg 0x1c: [mem
0x7c700106000-0x7c700107fff 64bit]
[Sat Feb  9 17:07:23 2019] pci 0001:00:04.1: supports D1 D2
[Sat Feb  9 17:07:23 2019] /pci@1e,600000: TOMATILLO PCI Bus Module ver[4:0]
[Sat Feb  9 17:07:23 2019] /pci@1e,600000: PCI IO [io
0x7fe01000000-0x7fe01ffffff] offset 7fe01000000
[Sat Feb  9 17:07:23 2019] /pci@1e,600000: PCI MEM [mem
0x7ff00000000-0x7ffffffffff] offset 7ff00000000
[Sat Feb  9 17:07:23 2019] PCI: Scanning PBM /pci@1e,600000
[Sat Feb  9 17:07:23 2019] schizo f007130c: PCI host bridge to bus 0002:00
[Sat Feb  9 17:07:23 2019] pci_bus 0002:00: root bus resource [io
0x7fe01000000-0x7fe01ffffff] (bus address [0x0000-0xffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0002:00: root bus resource [mem
0x7ff00000000-0x7ffffffffff] (bus address [0x00000000-0xffffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0002:00: root bus resource [bus 00]
[Sat Feb  9 17:07:23 2019] pci 0002:00:07.0: [10b9:1533] type 00 class 0x060100
[Sat Feb  9 17:07:23 2019] pci 0002:00:07.0: reg 0x10: [io
0x7fe01000000-0x7fe0100ffff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:07.0: reg 0x14: [mem
0x7ff00000000-0x7ff000fffff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:07.0: reg 0x18: [mem
0x7ff00000000-0x7ff000fffff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:06.0: [10b9:7101] type 00 class 0x000000
[Sat Feb  9 17:07:23 2019] pci 0002:00:06.0: reg 0x10: [io
0x7fe01000000-0x7fe0100000f]
[Sat Feb  9 17:07:23 2019] pci 0002:00:06.0: quirk: [io
0x7fe01000800-0x7fe0100083f] claimed by ali7101 ACPI
[Sat Feb  9 17:07:23 2019] pci 0002:00:06.0: quirk: [io
0x7fe01000600-0x7fe0100061f] claimed by ali7101 SMB
[Sat Feb  9 17:07:23 2019] pci 0002:00:08.0: [10b9:5451] type 00 class 0x040100
[Sat Feb  9 17:07:23 2019] pci 0002:00:08.0: reg 0x10: [io
0x7fe01000900-0x7fe010009ff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:08.0: reg 0x14: [mem
0x7ff00100000-0x7ff00101fff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:08.0: supports D1 D2
[Sat Feb  9 17:07:23 2019] pci 0002:00:08.0: PME# supported from D2 D3hot D3cold
[Sat Feb  9 17:07:23 2019] pci 0002:00:0a.0: [10b9:5237] type 00 class 0x0c0310
[Sat Feb  9 17:07:23 2019] pci 0002:00:0a.0: reg 0x10: [mem
0x7ff01000000-0x7ff01ffffff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:0a.0: PME# supported from D3cold
[Sat Feb  9 17:07:23 2019] pci 0002:00:0b.0: [10b9:5237] type 00 class 0x0c0310
[Sat Feb  9 17:07:23 2019] pci 0002:00:0b.0: reg 0x10: [mem
0x7ff02000000-0x7ff02ffffff]
[Sat Feb  9 17:07:23 2019] pci 0002:00:0b.0: PME# supported from D3cold
[Sat Feb  9 17:07:23 2019] pci 0002:00:0d.0: [10b9:5229] type 00 class 0x0101ff
[Sat Feb  9 17:07:23 2019] pci 0002:00:0d.0: reg 0x10: [io
0x7fe01000a00-0x7fe01000a07]
[Sat Feb  9 17:07:23 2019] pci 0002:00:0d.0: reg 0x14: [io
0x7fe01000a18-0x7fe01000a1f]
[Sat Feb  9 17:07:23 2019] pci 0002:00:0d.0: reg 0x18: [io
0x7fe01000a10-0x7fe01000a17]
[Sat Feb  9 17:07:23 2019] pci 0002:00:0d.0: reg 0x1c: [io
0x7fe01000a08-0x7fe01000a0f]
[Sat Feb  9 17:07:23 2019] pci 0002:00:0d.0: reg 0x20: [io
0x7fe01000a20-0x7fe01000a2f]
[Sat Feb  9 17:07:23 2019] pci 0002:00:07.0: can't claim BAR 0 [io
0x7fe01000000-0x7fe0100ffff]: address conflict with 0002:00:06.0 [io
0x7fe01000600-0x7fe0100061f]
[Sat Feb  9 17:07:23 2019] pci 0002:00:07.0: can't claim BAR 2 [mem
0x7ff00000000-0x7ff000fffff]: address conflict with 0002:00:07.0 [mem
0x7ff00000000-0x7ff000fffff]
[Sat Feb  9 17:07:23 2019] /pci@1f,700000: TOMATILLO PCI Bus Module ver[4:0]
[Sat Feb  9 17:07:23 2019] /pci@1f,700000: PCI IO [io
0x7f601000000-0x7f601ffffff] offset 7f601000000
[Sat Feb  9 17:07:23 2019] /pci@1f,700000: PCI MEM [mem
0x7f700000000-0x7f7ffffffff] offset 7f700000000
[Sat Feb  9 17:07:23 2019] PCI: Scanning PBM /pci@1f,700000
[Sat Feb  9 17:07:23 2019] schizo f0079a58: PCI host bridge to bus 0003:00
[Sat Feb  9 17:07:23 2019] pci_bus 0003:00: root bus resource [io
0x7f601000000-0x7f601ffffff] (bus address [0x0000-0xffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0003:00: root bus resource [mem
0x7f700000000-0x7f7ffffffff] (bus address [0x00000000-0xffffffff])
[Sat Feb  9 17:07:23 2019] pci_bus 0003:00: root bus resource [bus 00]
[Sat Feb  9 17:07:23 2019] HugeTLB registered 64.0 KiB page size,
pre-allocated 0 pages
[Sat Feb  9 17:07:23 2019] HugeTLB registered 8.00 MiB page size,
pre-allocated 0 pages
[Sat Feb  9 17:07:23 2019] HugeTLB registered 256 MiB page size,
pre-allocated 0 pages
[Sat Feb  9 17:07:23 2019] HugeTLB registered 2.00 GiB page size,
pre-allocated 0 pages
[Sat Feb  9 17:07:23 2019] SCSI subsystem initialized
[Sat Feb  9 17:07:23 2019] usbcore: registered new interface driver usbfs
[Sat Feb  9 17:07:23 2019] usbcore: registered new interface driver hub
[Sat Feb  9 17:07:23 2019] usbcore: registered new device driver usb
[Sat Feb  9 17:07:23 2019] /pci@1e,600000/isa@7/rtc@0,70: RTC regs at
0x7fe01000070
[Sat Feb  9 17:07:23 2019] clocksource: Switched to clocksource stick
[Sat Feb  9 17:07:23 2019] NET: Registered protocol family 2
[Sat Feb  9 17:07:24 2019] tcp_listen_portaddr_hash hash table
entries: 1024 (order: 1, 16384 bytes)
[Sat Feb  9 17:07:24 2019] TCP established hash table entries: 16384
(order: 4, 131072 bytes)
[Sat Feb  9 17:07:24 2019] TCP bind hash table entries: 16384 (order:
5, 262144 bytes)
[Sat Feb  9 17:07:24 2019] TCP: Hash tables configured (established
16384 bind 16384)
[Sat Feb  9 17:07:24 2019] UDP hash table entries: 1024 (order: 2, 32768 bytes)
[Sat Feb  9 17:07:24 2019] UDP-Lite hash table entries: 1024 (order:
2, 32768 bytes)
[Sat Feb  9 17:07:24 2019] NET: Registered protocol family 1
[Sat Feb  9 17:07:24 2019] pci 0002:00:07.0: Activating ISA DMA hang workarounds
[Sat Feb  9 17:07:24 2019] pci 0002:00:0a.0: enabling device (0000 -> 0002)
[Sat Feb  9 17:07:24 2019] PCI: CLS 64 bytes, default 64
[Sat Feb  9 17:07:24 2019] Unpacking initramfs...
[Sat Feb  9 17:07:24 2019] Freeing initrd memory: 4776K
[Sat Feb  9 17:07:24 2019] power: Control reg at 7fe01000800
[Sat Feb  9 17:07:24 2019] chmc: UltraSPARC-IIIi memory controller at
/memory-controller@0,0
[Sat Feb  9 17:07:24 2019] chmc: UltraSPARC-IIIi memory controller at
/memory-controller@1,0
[Sat Feb  9 17:07:24 2019] workingset: timestamp_bits=58 max_order=18
bucket_order=0
[Sat Feb  9 17:07:24 2019] Block layer SCSI generic (bsg) driver
version 0.4 loaded (major 252)
[Sat Feb  9 17:07:24 2019] io scheduler noop registered
[Sat Feb  9 17:07:24 2019] io scheduler deadline registered
[Sat Feb  9 17:07:24 2019] io scheduler cfq registered (default)
[Sat Feb  9 17:07:24 2019] f008fbfc: ttyS0 at MMIO 0x7fe010003f8 (irq
= 23, base_baud = 115387) is a 16550A
[Sat Feb  9 17:07:24 2019] Console: ttyS0 (SU)
[Sat Feb  9 17:07:36 2019] printk: console [ttyS0] enabled
[Sat Feb  9 17:07:36 2019] f0091638: ttyS1 at MMIO 0x7fe010002e8 (irq
= 23, base_baud = 115387) is a 16550A
[Sat Feb  9 17:07:36 2019] sym53c8xx 0001:00:04.0: enabling device
(0146 -> 0147)
[Sat Feb  9 17:07:36 2019] sym0: <1010-66> rev 0x1 at pci 0001:00:04.0 irq 12
[Sat Feb  9 17:07:36 2019] sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking
[Sat Feb  9 17:07:36 2019] sym0: SCSI BUS has been reset.
[Sat Feb  9 17:07:36 2019] scsi host0: sym-2.2.3
[Sat Feb  9 17:07:36 2019] sym53c8xx 0001:00:04.1: enabling device
(0146 -> 0147)
[Sat Feb  9 17:07:36 2019] sym1: <1010-66> rev 0x1 at pci 0001:00:04.1 irq 13
[Sat Feb  9 17:07:36 2019] sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking
[Sat Feb  9 17:07:36 2019] sym1: SCSI BUS has been reset.
[Sat Feb  9 17:07:36 2019] scsi host1: sym-2.2.3
[Sat Feb  9 17:07:36 2019] libphy: Fixed MDIO Bus: probed
[Sat Feb  9 17:07:36 2019] mousedev: PS/2 mouse device common for all mice
[Sat Feb  9 17:07:36 2019] input: Sparc Grover Speaker as
/devices/root/f007130c/f009729c/f0099194/input/input0
[Sat Feb  9 17:07:37 2019] rtc_cmos rtc_cmos: registered as rtc0
[Sat Feb  9 17:07:37 2019] rtc_cmos rtc_cmos: no alarms, 114 bytes nvram
[Sat Feb  9 17:07:37 2019] usbcore: registered new interface driver usbhid
[Sat Feb  9 17:07:37 2019] usbhid: USB HID core driver
[Sat Feb  9 17:07:37 2019] rtc_cmos rtc_cmos: setting system clock to
2019-02-09 16:07:34 UTC (1549728454)
[Sat Feb  9 17:07:39 2019] scsi target0:0:0: FAST-40 WIDE SCSI 80.0
MB/s ST (25 ns, offset 31)
[Sat Feb  9 17:07:39 2019] scsi 0:0:0:0: Direct-Access     IBM
IC35L073UCDY10-0 S28G PQ: 0 ANSI: 3
[Sat Feb  9 17:07:39 2019] scsi target0:0:0: tagged command queuing
enabled, command queue depth 16.
[Sat Feb  9 17:07:39 2019] scsi target0:0:0: Beginning Domain Validation
[Sat Feb  9 17:07:40 2019] scsi target0:0:0: FAST-80 WIDE SCSI 160.0
MB/s DT (12.5 ns, offset 31)
[Sat Feb  9 17:07:40 2019] scsi 0:0:0:0: Power-on or device reset occurred
[Sat Feb  9 17:07:40 2019] scsi target0:0:0: Ending Domain Validation
[Sat Feb  9 17:07:44 2019] sd 0:0:0:0: [sda] 143374000 512-byte
logical blocks: (73.4 GB/68.4 GiB)
[Sat Feb  9 17:07:44 2019] sd 0:0:0:0: [sda] Write Protect is off
[Sat Feb  9 17:07:44 2019] sd 0:0:0:0: [sda] Mode Sense: cb 00 00 08
[Sat Feb  9 17:07:44 2019] sd 0:0:0:0: [sda] Write cache: disabled,
read cache: enabled, doesn't support DPO or FUA
[Sat Feb  9 17:07:44 2019]  sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7
[Sat Feb  9 17:07:44 2019] sd 0:0:0:0: [sda] Attached SCSI disk
[Sat Feb  9 17:07:44 2019] This architecture does not have kernel
memory protection.
[Sat Feb  9 17:07:44 2019] Run /init as init process
[Sat Feb  9 17:07:44 2019] dracut: dracut-018-105.git20120927.bl17.bl.2
[Sat Feb  9 17:07:45 2019] udevd[86]: starting version 182
[Sat Feb  9 17:07:45 2019] dracut: Starting plymouth daemon
[Sat Feb  9 17:07:45 2019] libata version 3.00 loaded.
[Sat Feb  9 17:07:45 2019] pata_ali 0002:00:0d.0: enabling device (0004 -> 0005)
[Sat Feb  9 17:07:45 2019] scsi host2: pata_ali
[Sat Feb  9 17:07:45 2019] scsi host3: pata_ali
[Sat Feb  9 17:07:45 2019] ata1: PATA max UDMA/100 cmd 0x7fe01000a00
ctl 0x7fe01000a18 bmdma 0x7fe01000a20 irq 29
[Sat Feb  9 17:07:45 2019] ata2: PATA max UDMA/100 cmd 0x7fe01000a10
ctl 0x7fe01000a08 bmdma 0x7fe01000a28 irq 29
[Sat Feb  9 17:07:45 2019] EXT4-fs (sda5): mounting ext3 file system
using the ext4 subsystem
[Sat Feb  9 17:07:46 2019] ata2.00: ATAPI: BENQ    DVD-ROM 16X, A.CD,
max UDMA/66
[Sat Feb  9 17:07:46 2019] ata2.00: WARNING: ATAPI DMA disabled for
reliability issues.  It can be enabled
[Sat Feb  9 17:07:46 2019] ata2.00: WARNING: via pata_ali.atapi_dma
modparam or corresponding sysfs node.
[Sat Feb  9 17:07:46 2019] scsi 3:0:0:0: CD-ROM            BENQ
DVD-ROM 16X      A.CD PQ: 0 ANSI: 5
[Sat Feb  9 17:07:46 2019] EXT4-fs (sda5): mounted filesystem with
ordered data mode. Opts: (null)
[Sat Feb  9 17:07:46 2019] sr 3:0:0:0: [sr0] scsi3-mmc drive: 0x/50x
cd/rw xa/form2 cdda tray
[Sat Feb  9 17:07:46 2019] random: fast init done
[Sat Feb  9 17:07:46 2019] cdrom: Uniform CD-ROM driver Revision: 3.20
[Sat Feb  9 17:07:46 2019] sr 3:0:0:0: Attached scsi CD-ROM sr0
[Sat Feb  9 17:07:46 2019] dracut: Checking ext3: /dev/sda5
[Sat Feb  9 17:07:46 2019] dracut: issuing e2fsck -a  /dev/sda5
[Sat Feb  9 17:07:47 2019] dracut: /: clean, 38767/262144 files,
309556/1048240 blocks
[Sat Feb  9 17:07:47 2019] dracut: Remounting /dev/sda5 with -o ro
[Sat Feb  9 17:07:47 2019] EXT4-fs (sda5): mounting ext3 file system
using the ext4 subsystem
[Sat Feb  9 17:07:47 2019] EXT4-fs (sda5): mounted filesystem with
ordered data mode. Opts: (null)
[Sat Feb  9 17:07:47 2019] dracut: Mounted root filesystem /dev/sda5
[Sat Feb  9 17:07:48 2019] dracut: Switching root
[Sat Feb  9 17:07:48 2019] random: init: uninitialized urandom read
(12 bytes read)
[Sat Feb  9 17:07:49 2019] udevd[247]: starting version 182
[Sat Feb  9 17:07:49 2019] alim7101_wdt: Steve Hill <steve@navaho.co.uk>
[Sat Feb  9 17:07:49 2019] pps_core: LinuxPPS API ver. 1 registered
[Sat Feb  9 17:07:49 2019] alim7101_wdt: Detected old alim7101
revision 'a1d'.  If this is a cobalt board, set the 'use_gpio' module
parameter.
[Sat Feb  9 17:07:50 2019] pps_core: Software ver. 5.3.6 - Copyright
2005-2007 Rodolfo Giometti <giometti@linux.it>
[Sat Feb  9 17:07:50 2019] PTP clock support registered
[Sat Feb  9 17:07:50 2019] ohci_hcd: USB 1.1 'Open' Host Controller
(OHCI) Driver
[Sat Feb  9 17:07:50 2019] ali1535_smbus 0002:00:06.0: enabling device
(0000 -> 0001)
[Sat Feb  9 17:07:50 2019] ohci-pci: OHCI PCI platform driver
[Sat Feb  9 17:07:50 2019] alim7101_wdt: Steve Hill <steve@navaho.co.uk>
[Sat Feb  9 17:07:50 2019] ohci-pci 0002:00:0a.0: OHCI PCI host controller
[Sat Feb  9 17:07:50 2019] alim7101_wdt: Detected old alim7101
revision 'a1d'.  If this is a cobalt board, set the 'use_gpio' module
parameter.
[Sat Feb  9 17:07:50 2019] ohci-pci 0002:00:0a.0: new USB bus
registered, assigned bus number 1
[Sat Feb  9 17:07:50 2019] ohci-pci 0002:00:0a.0: irq 27, io mem 0x7ff01000000
[Sat Feb  9 17:07:50 2019] tg3.c:v3.137 (May 11, 2014)
[Sat Feb  9 17:07:50 2019] tg3 0000:00:03.0: enabling device (0000 -> 0002)
[Sat Feb  9 17:07:50 2019] hub 1-0:1.0: USB hub found
[Sat Feb  9 17:07:51 2019] hub 1-0:1.0: 2 ports detected
[Sat Feb  9 17:07:51 2019] ohci-pci 0002:00:0b.0: OHCI PCI host controller
[Sat Feb  9 17:07:51 2019] ohci-pci 0002:00:0b.0: new USB bus
registered, assigned bus number 2
[Sat Feb  9 17:07:51 2019] ohci-pci 0002:00:0b.0: irq 28, io mem 0x7ff02000000
[Sat Feb  9 17:07:51 2019] tg3 0000:00:03.0: VPD access failed.  This
is likely a firmware bug on this device.  Contact the card vendor for
a firmware update
[Sat Feb  9 17:07:51 2019] tg3 0000:00:03.0 eth0: Tigon3 [partno(none)
rev 1002] (PCI:66MHz:64-bit) MAC address 00:03:ba:68:d2:e0
[Sat Feb  9 17:07:51 2019] hub 2-0:1.0: USB hub found
[Sat Feb  9 17:07:51 2019] tg3 0000:00:03.0 eth0: attached PHY is 5703
(10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0])
[Sat Feb  9 17:07:51 2019] tg3 0000:00:03.0 eth0: RXcsums[1]
LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
[Sat Feb  9 17:07:51 2019] tg3 0000:00:03.0 eth0: dma_rwctrl[763f0000]
dma_mask[32-bit]
[Sat Feb  9 17:07:51 2019] hub 2-0:1.0: 2 ports detected
[Sat Feb  9 17:07:52 2019] usb 2-1: new low-speed USB device number 2
using ohci-pci
[Sat Feb  9 17:07:52 2019] input: HID 0430:0005 as
/devices/root/f007130c/pci0002:00/0002:00:0b.0/usb2/2-1/2-1:1.0/0003:0430:0005.0001/input/input1
[Sat Feb  9 17:07:52 2019] hid-generic 0003:0430:0005.0001: input: USB
HID v1.00 Keyboard [HID 0430:0005] on usb-0002:00:0b.0-1/input0
[Sat Feb  9 17:07:54 2019] EXT4-fs (sda5): re-mounted. Opts: (null)
[Sat Feb  9 17:07:54 2019] EXT4-fs (sda1): mounting ext3 file system
using the ext4 subsystem
[Sat Feb  9 17:07:54 2019] EXT4-fs (sda1): mounted filesystem with
ordered data mode. Opts: (null)
[Sat Feb  9 17:07:54 2019] EXT4-fs (sda2): mounted filesystem with
ordered data mode. Opts: (null)
[Sat Feb  9 17:07:54 2019] EXT4-fs (sda6): mounted filesystem with
ordered data mode. Opts: (null)
[Sat Feb  9 17:07:55 2019] random: dd: uninitialized urandom read (512
bytes read)
[Sat Feb  9 17:07:55 2019] Adding 4192952k swap on /dev/sda4.
Priority:-2 extents:1 across:4192952k
[Sat Feb  9 17:07:56 2019] NET: Registered protocol family 10
[Sat Feb  9 17:07:56 2019] Segment Routing with IPv6
[Sat Feb  9 17:07:58 2019] tg3 0000:00:03.0 eth0: No firmware running
[Sat Feb  9 17:07:58 2019] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[Sat Feb  9 17:07:58 2019] NET: Registered protocol family 17
[Sat Feb  9 17:07:59 2019] tg3 0000:00:03.0 eth0: Link is up at 100
Mbps, full duplex
[Sat Feb  9 17:07:59 2019] tg3 0000:00:03.0 eth0: Flow control is on
for TX and on for RX
[Sat Feb  9 17:07:59 2019] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link
becomes ready
[Sat Feb  9 17:08:03 2019] random: dbus-daemon: uninitialized urandom
read (12 bytes read)
[Sat Feb  9 17:13:00 2019] random: crng init done

^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-09 17:04 [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500 Mikael Pettersson
@ 2019-02-09 18:19 ` James Bottomley
  2019-02-10  9:17   ` Mikael Pettersson
  0 siblings, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-09 18:19 UTC (permalink / raw)
  To: Mikael Pettersson, Linux SPARC Kernel Mailing List, linux-block
  Cc: linux-kernel

On Sat, 2019-02-09 at 18:04 +0100, Mikael Pettersson wrote:
> 4.20 and earlier kernels boot fine on my Sun Blade 2500 (UltraSPARC
> IIIi), but the 5.0-rc kernels consistently experience a 5 minute
> delay
> late during boot, after enabling networking but before allowing user
> logins.  E.g. 5.0-rc5 dmesg has:
> 
> [Fri Feb  8 17:13:17 2019] random: dbus-daemon: uninitialized urandom
> read (12 bytes read)
> [Fri Feb  8 17:18:14 2019] random: crng init done

I've had the same problem on several of my test systems.  Are you sure
it's not this bug report:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=912087

?

The solution for me was to install the haveged package which does
active entropy gathering during boot and can make /dev/urandom
available much earlier.

> During this interval the machine answers pings but won't allow user
> logins either on the console or over the network.
> 
> A git bisect identified commit
> f664a3cc17b7d0a2bc3b3ab96181e1029b0ec0e6
> Author: Jens Axboe <axboe@kernel.dk>
> Date:   Thu Nov 1 16:36:27 2018 -0600
> 
>     scsi: kill off the legacy IO path
> 
> as the point where this 5m delay was introduced.

I think the reason for this is that the block mq path doesn't feed the
kernel entropy pool correctly, hence the need to install an entropy
gatherer for systems that don't have other good random number sources.

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-09 18:19 ` James Bottomley
@ 2019-02-10  9:17   ` Mikael Pettersson
  2019-02-10 15:44     ` James Bottomley
  0 siblings, 1 reply; 20+ messages in thread
From: Mikael Pettersson @ 2019-02-10  9:17 UTC (permalink / raw)
  To: James Bottomley
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
<James.Bottomley@hansenpartnership.com> wrote:
>
> On Sat, 2019-02-09 at 18:04 +0100, Mikael Pettersson wrote:
> > 4.20 and earlier kernels boot fine on my Sun Blade 2500 (UltraSPARC
> > IIIi), but the 5.0-rc kernels consistently experience a 5 minute
> > delay
> > late during boot, after enabling networking but before allowing user
> > logins.  E.g. 5.0-rc5 dmesg has:
> >
> > [Fri Feb  8 17:13:17 2019] random: dbus-daemon: uninitialized urandom
> > read (12 bytes read)
> > [Fri Feb  8 17:18:14 2019] random: crng init done
>
> I've had the same problem on several of my test systems.  Are you sure
> it's not this bug report:
>
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=912087
>
> ?
>
> The solution for me was to install the haveged package which does
> active entropy gathering during boot and can make /dev/urandom
> available much earlier.

Thanks for the hint, I'll look into using haveged on this machine.

>
> > During this interval the machine answers pings but won't allow user
> > logins either on the console or over the network.
> >
> > A git bisect identified commit
> > f664a3cc17b7d0a2bc3b3ab96181e1029b0ec0e6
> > Author: Jens Axboe <axboe@kernel.dk>
> > Date:   Thu Nov 1 16:36:27 2018 -0600
> >
> >     scsi: kill off the legacy IO path
> >
> > as the point where this 5m delay was introduced.
>
> I think the reason for this is that the block mq path doesn't feed the
> kernel entropy pool correctly, hence the need to install an entropy
> gatherer for systems that don't have other good random number sources.

That does sound plausible, I admit I didn't even consider the possibility that
the old block I/O path also was an entropy source.

/Mikael

^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-10  9:17   ` Mikael Pettersson
@ 2019-02-10 15:44     ` James Bottomley
  2019-02-10 16:05       ` Jens Axboe
  0 siblings, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-10 15:44 UTC (permalink / raw)
  To: Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
> On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
> <James.Bottomley@hansenpartnership.com> wrote:
[...]
> > I think the reason for this is that the block mq path doesn't feed
> > the kernel entropy pool correctly, hence the need to install an
> > entropy gatherer for systems that don't have other good random
> > number sources.
> 
> That does sound plausible, I admit I didn't even consider the
> possibility that the old block I/O path also was an entropy source.

In theory, the new one should be as well since the rotational entropy
collector is on the SCSI completion path.   I'd seen the same problem
but had assumed it was something someone had done to our internal
entropy pool and thus hadn't bisected it.

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-10 15:44     ` James Bottomley
@ 2019-02-10 16:05       ` Jens Axboe
  2019-02-10 16:25         ` James Bottomley
  2019-02-14 18:35         ` Mikael Pettersson
  0 siblings, 2 replies; 20+ messages in thread
From: Jens Axboe @ 2019-02-10 16:05 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On 2/10/19 8:44 AM, James Bottomley wrote:
> On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
>> On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
>> <James.Bottomley@hansenpartnership.com> wrote:
> [...]
>>> I think the reason for this is that the block mq path doesn't feed
>>> the kernel entropy pool correctly, hence the need to install an
>>> entropy gatherer for systems that don't have other good random
>>> number sources.
>>
>> That does sound plausible, I admit I didn't even consider the
>> possibility that the old block I/O path also was an entropy source.
> 
> In theory, the new one should be as well since the rotational entropy
> collector is on the SCSI completion path.   I'd seen the same problem
> but had assumed it was something someone had done to our internal
> entropy pool and thus hadn't bisected it.

The difference is that the old stack included ADD_RANDOM by default,
so this check:

	if (blk_queue_add_random(q))
		add_disk_randomness(req->rq_disk);

in scsi_end_request() would be true, and we'd add the randomness. For
sd, it seems to set it just fine for non-rotational drives. Could this
be because other devices don't? Maybe the below makes a difference.


diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 6d65ac584eba..60e029911755 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1881,6 +1881,7 @@ struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev)
 	sdev->request_queue->queuedata = sdev;
 	__scsi_init_queue(sdev->host, sdev->request_queue);
 	blk_queue_flag_set(QUEUE_FLAG_SCSI_PASSTHROUGH, sdev->request_queue);
+	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, sdev->request_queue);
 	return sdev->request_queue;
 }
 

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-10 16:05       ` Jens Axboe
@ 2019-02-10 16:25         ` James Bottomley
  2019-02-10 16:35           ` Jens Axboe
  2019-02-14 18:35         ` Mikael Pettersson
  1 sibling, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-10 16:25 UTC (permalink / raw)
  To: Jens Axboe, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On Sun, 2019-02-10 at 09:05 -0700, Jens Axboe wrote:
> On 2/10/19 8:44 AM, James Bottomley wrote:
> > On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
> > > On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
> > > <James.Bottomley@hansenpartnership.com> wrote:
> > 
> > [...]
> > > > I think the reason for this is that the block mq path doesn't
> > > > feed
> > > > the kernel entropy pool correctly, hence the need to install an
> > > > entropy gatherer for systems that don't have other good random
> > > > number sources.
> > > 
> > > That does sound plausible, I admit I didn't even consider the
> > > possibility that the old block I/O path also was an entropy
> > > source.
> > 
> > In theory, the new one should be as well since the rotational
> > entropy
> > collector is on the SCSI completion path.   I'd seen the same
> > problem
> > but had assumed it was something someone had done to our internal
> > entropy pool and thus hadn't bisected it.
> 
> The difference is that the old stack included ADD_RANDOM by default,
> so this check:
> 
> 	if (blk_queue_add_random(q))
> 		add_disk_randomness(req->rq_disk);
> 
> in scsi_end_request() would be true, and we'd add the randomness. For
> sd, it seems to set it just fine for non-rotational drives. Could
> this be because other devices don't? Maybe the below makes a
> difference.

No, in both we set it per the rotational parameters of the disk in 

sd.c:sd_read_block_characteristics()

	rot = get_unaligned_be16(&buffer[4]);

	if (rot == 1) {
	
	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
	
	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
	} else {
	
	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
	
	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
	}


That check wasn't changed by the code removal.

Although I suspect it should be unconditional: even SSDs have what
would appear as seek latencies at least during writes depending on the
time taken to find an erased block or even trigger garbage collection. 
The entropy collector is good at taking something completely regular
and spotting the inconsistencies, so it won't matter that loads of
"seeks" are deterministic.

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-10 16:25         ` James Bottomley
@ 2019-02-10 16:35           ` Jens Axboe
  2019-02-11 15:25             ` James Bottomley
  0 siblings, 1 reply; 20+ messages in thread
From: Jens Axboe @ 2019-02-10 16:35 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On 2/10/19 9:25 AM, James Bottomley wrote:
> On Sun, 2019-02-10 at 09:05 -0700, Jens Axboe wrote:
>> On 2/10/19 8:44 AM, James Bottomley wrote:
>>> On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
>>>> On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
>>>> <James.Bottomley@hansenpartnership.com> wrote:
>>>
>>> [...]
>>>>> I think the reason for this is that the block mq path doesn't
>>>>> feed
>>>>> the kernel entropy pool correctly, hence the need to install an
>>>>> entropy gatherer for systems that don't have other good random
>>>>> number sources.
>>>>
>>>> That does sound plausible, I admit I didn't even consider the
>>>> possibility that the old block I/O path also was an entropy
>>>> source.
>>>
>>> In theory, the new one should be as well since the rotational
>>> entropy
>>> collector is on the SCSI completion path.   I'd seen the same
>>> problem
>>> but had assumed it was something someone had done to our internal
>>> entropy pool and thus hadn't bisected it.
>>
>> The difference is that the old stack included ADD_RANDOM by default,
>> so this check:
>>
>> 	if (blk_queue_add_random(q))
>> 		add_disk_randomness(req->rq_disk);
>>
>> in scsi_end_request() would be true, and we'd add the randomness. For
>> sd, it seems to set it just fine for non-rotational drives. Could
>> this be because other devices don't? Maybe the below makes a
>> difference.
> 
> No, in both we set it per the rotational parameters of the disk in 
> 
> sd.c:sd_read_block_characteristics()
> 
> 	rot = get_unaligned_be16(&buffer[4]);
> 
> 	if (rot == 1) {
> 	
> 	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
> 	
> 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
> 	} else {
> 	
> 	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
> 	
> 	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
> 	}
> 
> 
> That check wasn't changed by the code removal.

As I said above, for sd. This isn't true for non-disks.

> Although I suspect it should be unconditional: even SSDs have what
> would appear as seek latencies at least during writes depending on the
> time taken to find an erased block or even trigger garbage collection. 
> The entropy collector is good at taking something completely regular
> and spotting the inconsistencies, so it won't matter that loads of
> "seeks" are deterministic.

The reason it isn't is that it's of limited use for SSDs where it's a
lot more predictable. And they are also a lot faster, which means the
adding randomness is more problematic from an efficiency pov.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-10 16:35           ` Jens Axboe
@ 2019-02-11 15:25             ` James Bottomley
  2019-02-11 15:28               ` Jens Axboe
  0 siblings, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-11 15:25 UTC (permalink / raw)
  To: Jens Axboe, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
> On 2/10/19 9:25 AM, James Bottomley wrote:
> > On Sun, 2019-02-10 at 09:05 -0700, Jens Axboe wrote:
> > > On 2/10/19 8:44 AM, James Bottomley wrote:
> > > > On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
> > > > > On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
> > > > > <James.Bottomley@hansenpartnership.com> wrote:
> > > > 
> > > > [...]
> > > > > > I think the reason for this is that the block mq path
> > > > > > doesn't feed the kernel entropy pool correctly, hence the
> > > > > > need to install an entropy gatherer for systems that don't
> > > > > > have other good random number sources.
> > > > > 
> > > > > That does sound plausible, I admit I didn't even consider the
> > > > > possibility that the old block I/O path also was an entropy
> > > > > source.
> > > > 
> > > > In theory, the new one should be as well since the rotational
> > > > entropy collector is on the SCSI completion path.   I'd seen
> > > > the same problem but had assumed it was something someone had
> > > > done to our internal entropy pool and thus hadn't bisected it.
> > > 
> > > The difference is that the old stack included ADD_RANDOM by
> > > default, so this check:
> > > 
> > > 	if (blk_queue_add_random(q))
> > > 		add_disk_randomness(req->rq_disk);
> > > 
> > > in scsi_end_request() would be true, and we'd add the randomness.
> > > For sd, it seems to set it just fine for non-rotational drives.
> > > Could this be because other devices don't? Maybe the below makes
> > > a difference.
> > 
> > No, in both we set it per the rotational parameters of the disk in 
> > 
> > sd.c:sd_read_block_characteristics()
> > 
> > 	rot = get_unaligned_be16(&buffer[4]);
> > 
> > 	if (rot == 1) {
> > 	
> > 	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
> > 	
> > 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
> > 	} else {
> > 	
> > 	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
> > 	
> > 	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
> > 	}
> > 
> > 
> > That check wasn't changed by the code removal.
> 
> As I said above, for sd. This isn't true for non-disks.

Yes, but the behaviour above doesn't change across a switch to MQ, so I
don't quite understand how it bisects back to that change.  If we're
not gathering entropy for the device now, we wouldn't have been before
the switch, so the entropy characteristics shouldn't have changed.

> > Although I suspect it should be unconditional: even SSDs have what
> > would appear as seek latencies at least during writes depending on
> > the time taken to find an erased block or even trigger garbage
> > collection.  The entropy collector is good at taking something
> > completely regular and spotting the inconsistencies, so it won't
> > matter that loads of "seeks" are deterministic.
> 
> The reason it isn't is that it's of limited use for SSDs where it's a
> lot more predictable. And they are also a lot faster, which means the
> adding randomness is more problematic from an efficiency pov.

But that's my point: our entropy extractor is good at weeding out
predictable signals.  Fine, it won't extract any entropy if the disk
seek time is entirely regular, but it won't contaminate the entropy
pool.  The computational delay, I grant ... it takes a while to
determine if any entropy is present in the signal.

What about feeding it with something like discard timings, which should
be much less predictable.

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-11 15:25             ` James Bottomley
@ 2019-02-11 15:28               ` Jens Axboe
  2019-02-11 15:42                 ` James Bottomley
  0 siblings, 1 reply; 20+ messages in thread
From: Jens Axboe @ 2019-02-11 15:28 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On 2/11/19 8:25 AM, James Bottomley wrote:
> On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
>> On 2/10/19 9:25 AM, James Bottomley wrote:
>>> On Sun, 2019-02-10 at 09:05 -0700, Jens Axboe wrote:
>>>> On 2/10/19 8:44 AM, James Bottomley wrote:
>>>>> On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
>>>>>> On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
>>>>>> <James.Bottomley@hansenpartnership.com> wrote:
>>>>>
>>>>> [...]
>>>>>>> I think the reason for this is that the block mq path
>>>>>>> doesn't feed the kernel entropy pool correctly, hence the
>>>>>>> need to install an entropy gatherer for systems that don't
>>>>>>> have other good random number sources.
>>>>>>
>>>>>> That does sound plausible, I admit I didn't even consider the
>>>>>> possibility that the old block I/O path also was an entropy
>>>>>> source.
>>>>>
>>>>> In theory, the new one should be as well since the rotational
>>>>> entropy collector is on the SCSI completion path.   I'd seen
>>>>> the same problem but had assumed it was something someone had
>>>>> done to our internal entropy pool and thus hadn't bisected it.
>>>>
>>>> The difference is that the old stack included ADD_RANDOM by
>>>> default, so this check:
>>>>
>>>> 	if (blk_queue_add_random(q))
>>>> 		add_disk_randomness(req->rq_disk);
>>>>
>>>> in scsi_end_request() would be true, and we'd add the randomness.
>>>> For sd, it seems to set it just fine for non-rotational drives.
>>>> Could this be because other devices don't? Maybe the below makes
>>>> a difference.
>>>
>>> No, in both we set it per the rotational parameters of the disk in 
>>>
>>> sd.c:sd_read_block_characteristics()
>>>
>>> 	rot = get_unaligned_be16(&buffer[4]);
>>>
>>> 	if (rot == 1) {
>>> 	
>>> 	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
>>> 	
>>> 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
>>> 	} else {
>>> 	
>>> 	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
>>> 	
>>> 	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
>>> 	}
>>>
>>>
>>> That check wasn't changed by the code removal.
>>
>> As I said above, for sd. This isn't true for non-disks.
> 
> Yes, but the behaviour above doesn't change across a switch to MQ, so I
> don't quite understand how it bisects back to that change.  If we're
> not gathering entropy for the device now, we wouldn't have been before
> the switch, so the entropy characteristics shouldn't have changed.

But it does, as I also wrote in that first email. The legacy queue
flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ ones do not.
Hence any non-sd device would previously ALWAYS have ADD_RANDOM
set, now none of them do. Also see the patch I sent.

>>> Although I suspect it should be unconditional: even SSDs have what
>>> would appear as seek latencies at least during writes depending on
>>> the time taken to find an erased block or even trigger garbage
>>> collection.  The entropy collector is good at taking something
>>> completely regular and spotting the inconsistencies, so it won't
>>> matter that loads of "seeks" are deterministic.
>>
>> The reason it isn't is that it's of limited use for SSDs where it's a
>> lot more predictable. And they are also a lot faster, which means the
>> adding randomness is more problematic from an efficiency pov.
> 
> But that's my point: our entropy extractor is good at weeding out
> predictable signals.  Fine, it won't extract any entropy if the disk
> seek time is entirely regular, but it won't contaminate the entropy
> pool.  The computational delay, I grant ... it takes a while to
> determine if any entropy is present in the signal.

But you are missing my point - if we're mostly weeding out predictable
signals, then it's pointless to take the overhead of the randomness.
This is why the MQ flag don't include it by default.

> What about feeding it with something like discard timings, which should
> be much less predictable.

That's not true, lots of devices have VERY predictable discard timings.
Most of them will have a fixed discards-per-second rate, even.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-11 15:28               ` Jens Axboe
@ 2019-02-11 15:42                 ` James Bottomley
  2019-02-11 15:46                   ` Jens Axboe
  0 siblings, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-11 15:42 UTC (permalink / raw)
  To: Jens Axboe, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
> On 2/11/19 8:25 AM, James Bottomley wrote:
> > On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
> > > On 2/10/19 9:25 AM, James Bottomley wrote:
> > > > On Sun, 2019-02-10 at 09:05 -0700, Jens Axboe wrote:
> > > > > On 2/10/19 8:44 AM, James Bottomley wrote:
> > > > > > On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
> > > > > > > On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
> > > > > > > <James.Bottomley@hansenpartnership.com> wrote:
> > > > > > 
> > > > > > [...]
> > > > > > > > I think the reason for this is that the block mq path
> > > > > > > > doesn't feed the kernel entropy pool correctly, hence
> > > > > > > > the need to install an entropy gatherer for systems
> > > > > > > > that don't have other good random number sources.
> > > > > > > 
> > > > > > > That does sound plausible, I admit I didn't even consider
> > > > > > > the possibility that the old block I/O path also was an
> > > > > > > entropy source.
> > > > > > 
> > > > > > In theory, the new one should be as well since the
> > > > > > rotational entropy collector is on the SCSI completion
> > > > > > path.   I'd seen the same problem but had assumed it was
> > > > > > something someone had done to our internal entropy pool and
> > > > > > thus hadn't bisected it.
> > > > > 
> > > > > The difference is that the old stack included ADD_RANDOM by
> > > > > default, so this check:
> > > > > 
> > > > > 	if (blk_queue_add_random(q))
> > > > > 		add_disk_randomness(req->rq_disk);
> > > > > 
> > > > > in scsi_end_request() would be true, and we'd add the
> > > > > randomness. For sd, it seems to set it just fine for non-
> > > > > rotational drives. Could this be because other devices don't?
> > > > > Maybe the below makes a difference.
> > > > 
> > > > No, in both we set it per the rotational parameters of the disk
> > > > in 
> > > > 
> > > > sd.c:sd_read_block_characteristics()
> > > > 
> > > > 	rot = get_unaligned_be16(&buffer[4]);
> > > > 
> > > > 	if (rot == 1) {
> > > > 	
> > > > 	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
> > > > 	
> > > > 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
> > > > 	} else {
> > > > 	
> > > > 	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
> > > > 	
> > > > 	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
> > > > 	}
> > > > 
> > > > 
> > > > That check wasn't changed by the code removal.
> > > 
> > > As I said above, for sd. This isn't true for non-disks.
> > 
> > Yes, but the behaviour above doesn't change across a switch to MQ,
> > so I don't quite understand how it bisects back to that change.  If
> > we're not gathering entropy for the device now, we wouldn't have
> > been before the switch, so the entropy characteristics shouldn't
> > have changed.
> 
> But it does, as I also wrote in that first email. The legacy queue
> flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ ones do not.
> Hence any non-sd device would previously ALWAYS have ADD_RANDOM
> set, now none of them do. Also see the patch I sent.

So your theory is that the disk in question never gets to the
rotational check?  because the check will clear the flag if it's non-
rotational and set it if it's not, so the default state of the flag
shouldn't matter.

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-11 15:42                 ` James Bottomley
@ 2019-02-11 15:46                   ` Jens Axboe
  2019-02-11 16:28                     ` James Bottomley
  0 siblings, 1 reply; 20+ messages in thread
From: Jens Axboe @ 2019-02-11 15:46 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On 2/11/19 8:42 AM, James Bottomley wrote:
> On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
>> On 2/11/19 8:25 AM, James Bottomley wrote:
>>> On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
>>>> On 2/10/19 9:25 AM, James Bottomley wrote:
>>>>> On Sun, 2019-02-10 at 09:05 -0700, Jens Axboe wrote:
>>>>>> On 2/10/19 8:44 AM, James Bottomley wrote:
>>>>>>> On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
>>>>>>>> On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
>>>>>>>> <James.Bottomley@hansenpartnership.com> wrote:
>>>>>>>
>>>>>>> [...]
>>>>>>>>> I think the reason for this is that the block mq path
>>>>>>>>> doesn't feed the kernel entropy pool correctly, hence
>>>>>>>>> the need to install an entropy gatherer for systems
>>>>>>>>> that don't have other good random number sources.
>>>>>>>>
>>>>>>>> That does sound plausible, I admit I didn't even consider
>>>>>>>> the possibility that the old block I/O path also was an
>>>>>>>> entropy source.
>>>>>>>
>>>>>>> In theory, the new one should be as well since the
>>>>>>> rotational entropy collector is on the SCSI completion
>>>>>>> path.   I'd seen the same problem but had assumed it was
>>>>>>> something someone had done to our internal entropy pool and
>>>>>>> thus hadn't bisected it.
>>>>>>
>>>>>> The difference is that the old stack included ADD_RANDOM by
>>>>>> default, so this check:
>>>>>>
>>>>>> 	if (blk_queue_add_random(q))
>>>>>> 		add_disk_randomness(req->rq_disk);
>>>>>>
>>>>>> in scsi_end_request() would be true, and we'd add the
>>>>>> randomness. For sd, it seems to set it just fine for non-
>>>>>> rotational drives. Could this be because other devices don't?
>>>>>> Maybe the below makes a difference.
>>>>>
>>>>> No, in both we set it per the rotational parameters of the disk
>>>>> in 
>>>>>
>>>>> sd.c:sd_read_block_characteristics()
>>>>>
>>>>> 	rot = get_unaligned_be16(&buffer[4]);
>>>>>
>>>>> 	if (rot == 1) {
>>>>> 	
>>>>> 	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
>>>>> 	
>>>>> 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
>>>>> 	} else {
>>>>> 	
>>>>> 	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
>>>>> 	
>>>>> 	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
>>>>> 	}
>>>>>
>>>>>
>>>>> That check wasn't changed by the code removal.
>>>>
>>>> As I said above, for sd. This isn't true for non-disks.
>>>
>>> Yes, but the behaviour above doesn't change across a switch to MQ,
>>> so I don't quite understand how it bisects back to that change.  If
>>> we're not gathering entropy for the device now, we wouldn't have
>>> been before the switch, so the entropy characteristics shouldn't
>>> have changed.
>>
>> But it does, as I also wrote in that first email. The legacy queue
>> flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ ones do not.
>> Hence any non-sd device would previously ALWAYS have ADD_RANDOM
>> set, now none of them do. Also see the patch I sent.
> 
> So your theory is that the disk in question never gets to the
> rotational check?  because the check will clear the flag if it's non-
> rotational and set it if it's not, so the default state of the flag
> shouldn't matter.

No, my point is about non-disks, devices that aren't driven by sd. The
behavior for sd hasn't changed, as it sets/clears it unconditionally.
That's not true for something driven by sr, for instance, and anything
else non-sd. For those we defaulted to adding randomness for !scsi-mq,
and default to not adding randomness for scsi-mq.

The patch I included would have the same behavior for scsi-mq as we had
for non-mq.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-11 15:46                   ` Jens Axboe
@ 2019-02-11 16:28                     ` James Bottomley
  2019-02-11 16:31                       ` Jens Axboe
  0 siblings, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-11 16:28 UTC (permalink / raw)
  To: Jens Axboe, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On Mon, 2019-02-11 at 08:46 -0700, Jens Axboe wrote:
> On 2/11/19 8:42 AM, James Bottomley wrote:
> > On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
> > > On 2/11/19 8:25 AM, James Bottomley wrote:
> > > > On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
> > > > > On 2/10/19 9:25 AM, James Bottomley wrote:
[...]
> > > > > > That check wasn't changed by the code removal.
> > > > > 
> > > > > As I said above, for sd. This isn't true for non-disks.
> > > > 
> > > > Yes, but the behaviour above doesn't change across a switch to
> > > > MQ, so I don't quite understand how it bisects back to that
> > > > change.  If we're not gathering entropy for the device now, we
> > > > wouldn't have been before the switch, so the entropy
> > > > characteristics shouldn't have changed.
> > > 
> > > But it does, as I also wrote in that first email. The legacy
> > > queue flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ ones
> > > do not. Hence any non-sd device would previously ALWAYS have
> > > ADD_RANDOM set, now none of them do. Also see the patch I sent.
> > 
> > So your theory is that the disk in question never gets to the
> > rotational check?  because the check will clear the flag if it's
> > non-rotational and set it if it's not, so the default state of the
> > flag shouldn't matter.
> 
> No, my point is about non-disks, devices that aren't driven by sd.
> The behavior for sd hasn't changed, as it sets/clears it
> unconditionally.

I agree, but I don't think any of them were significant entropy
contributors before: things like nvme have always been outside of this
and sr and st don't really contribute much to the seek load during boot
because they're probed but not used by the boot sequence, so I can't
see how they would cause this behaviour.  I suppose it could be target
probing, but even that seems unlikely because it should be dwarfed by
the number of root disk reads during boot.

For the rng to take an additional 5 minutes to initialize, we must have
lost a significant entropy source somewhere.

James

> That's not true for something driven by sr, for instance, and
> anything else non-sd. For those we defaulted to adding randomness for
> !scsi-mq, and default to not adding randomness for scsi-mq.
> 
> The patch I included would have the same behavior for scsi-mq as we
> had for non-mq.


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-11 16:28                     ` James Bottomley
@ 2019-02-11 16:31                       ` Jens Axboe
  2019-02-12  2:13                         ` James Bottomley
  0 siblings, 1 reply; 20+ messages in thread
From: Jens Axboe @ 2019-02-11 16:31 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel

On 2/11/19 9:28 AM, James Bottomley wrote:
> On Mon, 2019-02-11 at 08:46 -0700, Jens Axboe wrote:
>> On 2/11/19 8:42 AM, James Bottomley wrote:
>>> On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
>>>> On 2/11/19 8:25 AM, James Bottomley wrote:
>>>>> On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
>>>>>> On 2/10/19 9:25 AM, James Bottomley wrote:
> [...]
>>>>>>> That check wasn't changed by the code removal.
>>>>>>
>>>>>> As I said above, for sd. This isn't true for non-disks.
>>>>>
>>>>> Yes, but the behaviour above doesn't change across a switch to
>>>>> MQ, so I don't quite understand how it bisects back to that
>>>>> change.  If we're not gathering entropy for the device now, we
>>>>> wouldn't have been before the switch, so the entropy
>>>>> characteristics shouldn't have changed.
>>>>
>>>> But it does, as I also wrote in that first email. The legacy
>>>> queue flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ ones
>>>> do not. Hence any non-sd device would previously ALWAYS have
>>>> ADD_RANDOM set, now none of them do. Also see the patch I sent.
>>>
>>> So your theory is that the disk in question never gets to the
>>> rotational check?  because the check will clear the flag if it's
>>> non-rotational and set it if it's not, so the default state of the
>>> flag shouldn't matter.
>>
>> No, my point is about non-disks, devices that aren't driven by sd.
>> The behavior for sd hasn't changed, as it sets/clears it
>> unconditionally.
> 
> I agree, but I don't think any of them were significant entropy
> contributors before: things like nvme have always been outside of this
> and sr and st don't really contribute much to the seek load during boot
> because they're probed but not used by the boot sequence, so I can't
> see how they would cause this behaviour.  I suppose it could be target
> probing, but even that seems unlikely because it should be dwarfed by
> the number of root disk reads during boot.
> 
> For the rng to take an additional 5 minutes to initialize, we must have
> lost a significant entropy source somewhere.

I agree it's not a significant amount of entropy, but even just one bit
could mean a long stall if that put us over the edge of just not having
enough for whatever is blocking on /dev/random. Mikael's boot did have a
CDROM, it's not impossible that the handful of commands we end up doing
to that device would have contributed enough entropy to get the boot
done without stalling for minutes.

One way to know for sure, and that's if Mikael tests the patch.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-11 16:31                       ` Jens Axboe
@ 2019-02-12  2:13                         ` James Bottomley
  2019-02-12  2:50                           ` Jens Axboe
  0 siblings, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-12  2:13 UTC (permalink / raw)
  To: Jens Axboe, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel, linux-scsi

On Mon, 2019-02-11 at 09:31 -0700, Jens Axboe wrote:
> On 2/11/19 9:28 AM, James Bottomley wrote:
> > On Mon, 2019-02-11 at 08:46 -0700, Jens Axboe wrote:
> > > On 2/11/19 8:42 AM, James Bottomley wrote:
> > > > On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
> > > > > On 2/11/19 8:25 AM, James Bottomley wrote:
> > > > > > On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
> > > > > > > On 2/10/19 9:25 AM, James Bottomley wrote:
> > 
> > [...]
> > > > > > > > That check wasn't changed by the code removal.
> > > > > > > 
> > > > > > > As I said above, for sd. This isn't true for non-disks.
> > > > > > 
> > > > > > Yes, but the behaviour above doesn't change across a switch
> > > > > > to MQ, so I don't quite understand how it bisects back to
> > > > > > that change.  If we're not gathering entropy for the device
> > > > > > now, we wouldn't have been before the switch, so the
> > > > > > entropy characteristics shouldn't have changed.
> > > > > 
> > > > > But it does, as I also wrote in that first email. The legacy
> > > > > queue flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ
> > > > > ones do not. Hence any non-sd device would previously ALWAYS
> > > > > have ADD_RANDOM set, now none of them do. Also see the patch
> > > > > I sent.
> > > > 
> > > > So your theory is that the disk in question never gets to the
> > > > rotational check?  because the check will clear the flag if
> > > > it's non-rotational and set it if it's not, so the default
> > > > state of the flag shouldn't matter.
> > > 
> > > No, my point is about non-disks, devices that aren't driven by
> > > sd. The behavior for sd hasn't changed, as it sets/clears it
> > > unconditionally. 
> > 
> > I agree, but I don't think any of them were significant entropy
> > contributors before: things like nvme have always been outside of
> > this and sr and st don't really contribute much to the seek load
> > during boot because they're probed but not used by the boot
> > sequence, so I can't see how they would cause this behaviour.  I
> > suppose it could be target probing, but even that seems unlikely
> > because it should be dwarfed by the number of root disk reads
> > during boot.
> > 
> > For the rng to take an additional 5 minutes to initialize, we must
> > have lost a significant entropy source somewhere.
> 
> I agree it's not a significant amount of entropy, but even just one
> bit could mean a long stall if that put us over the edge of just not
> having enough for whatever is blocking on /dev/random. Mikael's boot
> did have a CDROM, it's not impossible that the handful of commands we
> end up doing to that device would have contributed enough entropy to
> get the boot done without stalling for minutes.
> 
> One way to know for sure, and that's if Mikael tests the patch.

I think I've got the root cause.  I have one system in my test bed
exhibiting this behaviour.  It turns out the disk in it has no
characteristics VPD page.  The 0xB1 VPD was a SBC-3 addition, so that's
not surprising.  However, the characteristics check bails before
setting the flags, so it takes the default flag which has flipped.

We can either fix this by setting the QUEUE_FLAG_ADD_RANDOM if there's
no 0xB1 page or by setting the default as Jens proposed.

James

---

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index d0a980915801..1f3a1474042e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2961,6 +2961,10 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
 
 	buffer = kmalloc(vpd_len, GFP_KERNEL);
 
+	/* set to rotational in case no device characteristic page exists */
+	blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
+	blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
+
 	if (!buffer ||
 	    /* Block Device Characteristics VPD */
 	    scsi_get_vpd_page(sdkp->device, 0xb1, buffer, vpd_len))
@@ -2971,9 +2975,6 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
 	if (rot == 1) {
 		blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
 		blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
-	} else {
-		blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
-		blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
 	}
 
 	if (sdkp->device->type == TYPE_ZBC) {

^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-12  2:13                         ` James Bottomley
@ 2019-02-12  2:50                           ` Jens Axboe
  2019-02-12  3:37                             ` Elliott, Robert (Persistent Memory)
  2019-02-12 15:24                             ` James Bottomley
  0 siblings, 2 replies; 20+ messages in thread
From: Jens Axboe @ 2019-02-12  2:50 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel, linux-scsi

On 2/11/19 7:13 PM, James Bottomley wrote:
> On Mon, 2019-02-11 at 09:31 -0700, Jens Axboe wrote:
>> On 2/11/19 9:28 AM, James Bottomley wrote:
>>> On Mon, 2019-02-11 at 08:46 -0700, Jens Axboe wrote:
>>>> On 2/11/19 8:42 AM, James Bottomley wrote:
>>>>> On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
>>>>>> On 2/11/19 8:25 AM, James Bottomley wrote:
>>>>>>> On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
>>>>>>>> On 2/10/19 9:25 AM, James Bottomley wrote:
>>>
>>> [...]
>>>>>>>>> That check wasn't changed by the code removal.
>>>>>>>>
>>>>>>>> As I said above, for sd. This isn't true for non-disks.
>>>>>>>
>>>>>>> Yes, but the behaviour above doesn't change across a switch
>>>>>>> to MQ, so I don't quite understand how it bisects back to
>>>>>>> that change.  If we're not gathering entropy for the device
>>>>>>> now, we wouldn't have been before the switch, so the
>>>>>>> entropy characteristics shouldn't have changed.
>>>>>>
>>>>>> But it does, as I also wrote in that first email. The legacy
>>>>>> queue flags had QUEUE_FLAG_ADD_RANDOM set by default, the MQ
>>>>>> ones do not. Hence any non-sd device would previously ALWAYS
>>>>>> have ADD_RANDOM set, now none of them do. Also see the patch
>>>>>> I sent.
>>>>>
>>>>> So your theory is that the disk in question never gets to the
>>>>> rotational check?  because the check will clear the flag if
>>>>> it's non-rotational and set it if it's not, so the default
>>>>> state of the flag shouldn't matter.
>>>>
>>>> No, my point is about non-disks, devices that aren't driven by
>>>> sd. The behavior for sd hasn't changed, as it sets/clears it
>>>> unconditionally. 
>>>
>>> I agree, but I don't think any of them were significant entropy
>>> contributors before: things like nvme have always been outside of
>>> this and sr and st don't really contribute much to the seek load
>>> during boot because they're probed but not used by the boot
>>> sequence, so I can't see how they would cause this behaviour.  I
>>> suppose it could be target probing, but even that seems unlikely
>>> because it should be dwarfed by the number of root disk reads
>>> during boot.
>>>
>>> For the rng to take an additional 5 minutes to initialize, we must
>>> have lost a significant entropy source somewhere.
>>
>> I agree it's not a significant amount of entropy, but even just one
>> bit could mean a long stall if that put us over the edge of just not
>> having enough for whatever is blocking on /dev/random. Mikael's boot
>> did have a CDROM, it's not impossible that the handful of commands we
>> end up doing to that device would have contributed enough entropy to
>> get the boot done without stalling for minutes.
>>
>> One way to know for sure, and that's if Mikael tests the patch.
> 
> I think I've got the root cause.  I have one system in my test bed
> exhibiting this behaviour.  It turns out the disk in it has no
> characteristics VPD page.  The 0xB1 VPD was a SBC-3 addition, so that's
> not surprising.  However, the characteristics check bails before
> setting the flags, so it takes the default flag which has flipped.
> 
> We can either fix this by setting the QUEUE_FLAG_ADD_RANDOM if there's
> no 0xB1 page or by setting the default as Jens proposed.

I'd recommend just doing my patch, since that'll be the same behavior
that SCSI had before.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* RE: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-12  2:50                           ` Jens Axboe
@ 2019-02-12  3:37                             ` Elliott, Robert (Persistent Memory)
  2019-02-12  4:15                               ` James Bottomley
  2019-02-12 15:24                             ` James Bottomley
  1 sibling, 1 reply; 20+ messages in thread
From: Elliott, Robert (Persistent Memory) @ 2019-02-12  3:37 UTC (permalink / raw)
  To: Jens Axboe, James Bottomley, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel, linux-scsi



> -----Original Message-----
> From: linux-kernel-owner@vger.kernel.org <linux-kernel-
> owner@vger.kernel.org> On Behalf Of Jens Axboe
> Sent: Monday, February 11, 2019 8:50 PM
> To: James Bottomley <James.Bottomley@HansenPartnership.com>; Mikael
> Pettersson <mikpelinux@gmail.com>
> Cc: Linux SPARC Kernel Mailing List <sparclinux@vger.kernel.org>;
> linux-block@vger.kernel.org; linux-kernel@vger.kernel.org; linux-scsi
> <linux-scsi@vger.kernel.org>
> Subject: Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path"
> causes 5 minute delay during boot on Sun Blade 2500
...

> > We can either fix this by setting the QUEUE_FLAG_ADD_RANDOM if
> > there's no 0xB1 page or by setting the default as Jens proposed.
> 
> I'd recommend just doing my patch, since that'll be the same behavior
> that SCSI had before.

When blk-mq and scsi-mq were introduced to boost SAS SSDs over
1 million IOPS, this was purposely kept off, because it generated
a noticeable 3-12 us latency blip whenever the "fast_mix" code ran
out of bits. If Jens' patch changes the default to be enabled for
all scsi-mq users, that'll be a change for the newer legacy
scsi-mq users (except for users that don't trust the default and
always set the value in sysfs).



^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-12  3:37                             ` Elliott, Robert (Persistent Memory)
@ 2019-02-12  4:15                               ` James Bottomley
  0 siblings, 0 replies; 20+ messages in thread
From: James Bottomley @ 2019-02-12  4:15 UTC (permalink / raw)
  To: Elliott, Robert (Persistent Memory), Jens Axboe, Mikael Pettersson
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel, linux-scsi

On Tue, 2019-02-12 at 03:37 +0000, Elliott, Robert (Persistent Memory)
wrote:
> > -----Original Message-----
> > From: linux-kernel-owner@vger.kernel.org <linux-kernel-
> > owner@vger.kernel.org> On Behalf Of Jens Axboe
> > Sent: Monday, February 11, 2019 8:50 PM
> > To: James Bottomley <James.Bottomley@HansenPartnership.com>; Mikael
> > Pettersson <mikpelinux@gmail.com>
> > Cc: Linux SPARC Kernel Mailing List <sparclinux@vger.kernel.org>;
> > linux-block@vger.kernel.org; linux-kernel@vger.kernel.org; linux-
> > scsi
> > <linux-scsi@vger.kernel.org>
> > Subject: Re: [5.0-rc5 regression] "scsi: kill off the legacy IO
> > path"
> > causes 5 minute delay during boot on Sun Blade 2500
> 
> ...
> 
> > > We can either fix this by setting the QUEUE_FLAG_ADD_RANDOM if
> > > there's no 0xB1 page or by setting the default as Jens proposed.
> > 
> > I'd recommend just doing my patch, since that'll be the same
> > behavior that SCSI had before.
> 
> When blk-mq and scsi-mq were introduced to boost SAS SSDs over
> 1 million IOPS, this was purposely kept off, because it generated
> a noticeable 3-12 us latency blip whenever the "fast_mix" code ran
> out of bits. If Jens' patch changes the default to be enabled for
> all scsi-mq users, that'll be a change for the newer legacy
> scsi-mq users (except for users that don't trust the default and
> always set the value in sysfs).

All high IOPs devices have a device characteristics page, so even if we
 default this to ON, it will get turned off for these devices which
should be the desired result regardless of the default setting. 

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-12  2:50                           ` Jens Axboe
  2019-02-12  3:37                             ` Elliott, Robert (Persistent Memory)
@ 2019-02-12 15:24                             ` James Bottomley
  2019-02-12 15:27                               ` Jens Axboe
  1 sibling, 1 reply; 20+ messages in thread
From: James Bottomley @ 2019-02-12 15:24 UTC (permalink / raw)
  To: Jens Axboe, Mikael Pettersson, Xuewei Zhang
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel, linux-scsi

On Mon, 2019-02-11 at 19:50 -0700, Jens Axboe wrote:
> On 2/11/19 7:13 PM, James Bottomley wrote:
> > On Mon, 2019-02-11 at 09:31 -0700, Jens Axboe wrote:
> > > On 2/11/19 9:28 AM, James Bottomley wrote:
> > > > On Mon, 2019-02-11 at 08:46 -0700, Jens Axboe wrote:
> > > > > On 2/11/19 8:42 AM, James Bottomley wrote:
> > > > > > On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
> > > > > > > On 2/11/19 8:25 AM, James Bottomley wrote:
> > > > > > > > On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
> > > > > > > > > On 2/10/19 9:25 AM, James Bottomley wrote:
> > > > 
> > > > [...]
> > > > > > > > > > That check wasn't changed by the code removal.
> > > > > > > > > 
> > > > > > > > > As I said above, for sd. This isn't true for non-
> > > > > > > > > disks.
> > > > > > > > 
> > > > > > > > Yes, but the behaviour above doesn't change across a
> > > > > > > > switch
> > > > > > > > to MQ, so I don't quite understand how it bisects back
> > > > > > > > to
> > > > > > > > that change.  If we're not gathering entropy for the
> > > > > > > > device
> > > > > > > > now, we wouldn't have been before the switch, so the
> > > > > > > > entropy characteristics shouldn't have changed.
> > > > > > > 
> > > > > > > But it does, as I also wrote in that first email. The
> > > > > > > legacy
> > > > > > > queue flags had QUEUE_FLAG_ADD_RANDOM set by default, the
> > > > > > > MQ
> > > > > > > ones do not. Hence any non-sd device would previously
> > > > > > > ALWAYS
> > > > > > > have ADD_RANDOM set, now none of them do. Also see the
> > > > > > > patch
> > > > > > > I sent.
> > > > > > 
> > > > > > So your theory is that the disk in question never gets to
> > > > > > the
> > > > > > rotational check?  because the check will clear the flag if
> > > > > > it's non-rotational and set it if it's not, so the default
> > > > > > state of the flag shouldn't matter.
> > > > > 
> > > > > No, my point is about non-disks, devices that aren't driven
> > > > > by
> > > > > sd. The behavior for sd hasn't changed, as it sets/clears it
> > > > > unconditionally. 
> > > > 
> > > > I agree, but I don't think any of them were significant entropy
> > > > contributors before: things like nvme have always been outside
> > > > of
> > > > this and sr and st don't really contribute much to the seek
> > > > load
> > > > during boot because they're probed but not used by the boot
> > > > sequence, so I can't see how they would cause this
> > > > behaviour.  I
> > > > suppose it could be target probing, but even that seems
> > > > unlikely
> > > > because it should be dwarfed by the number of root disk reads
> > > > during boot.
> > > > 
> > > > For the rng to take an additional 5 minutes to initialize, we
> > > > must
> > > > have lost a significant entropy source somewhere.
> > > 
> > > I agree it's not a significant amount of entropy, but even just
> > > one
> > > bit could mean a long stall if that put us over the edge of just
> > > not
> > > having enough for whatever is blocking on /dev/random. Mikael's
> > > boot
> > > did have a CDROM, it's not impossible that the handful of
> > > commands we
> > > end up doing to that device would have contributed enough entropy
> > > to
> > > get the boot done without stalling for minutes.
> > > 
> > > One way to know for sure, and that's if Mikael tests the patch.
> > 
> > I think I've got the root cause.  I have one system in my test bed
> > exhibiting this behaviour.  It turns out the disk in it has no
> > characteristics VPD page.  The 0xB1 VPD was a SBC-3 addition, so
> > that's
> > not surprising.  However, the characteristics check bails before
> > setting the flags, so it takes the default flag which has flipped.
> > 
> > We can either fix this by setting the QUEUE_FLAG_ADD_RANDOM if
> > there's
> > no 0xB1 page or by setting the default as Jens proposed.
> 
> I'd recommend just doing my patch, since that'll be the same behavior
> that SCSI had before.

I've got the history now, it's this patch

Author: Xuewei Zhang <xueweiz@google.com>
Date:   Thu Sep 6 13:37:19 2018 -0700

    scsi: sd: Contribute to randomness when running rotational device

It added the else branch to the if (rot == 1).  It's the position of
that else branch which is wrong because not all disks have a SBC-3
characteristics VPD page, so they're the ones under MQ which stop
contributing entropy.  Whichever patch we go with will need a fixes:
for this.

James


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-12 15:24                             ` James Bottomley
@ 2019-02-12 15:27                               ` Jens Axboe
  0 siblings, 0 replies; 20+ messages in thread
From: Jens Axboe @ 2019-02-12 15:27 UTC (permalink / raw)
  To: James Bottomley, Mikael Pettersson, Xuewei Zhang
  Cc: Linux SPARC Kernel Mailing List, linux-block, linux-kernel, linux-scsi

On 2/12/19 8:24 AM, James Bottomley wrote:
> On Mon, 2019-02-11 at 19:50 -0700, Jens Axboe wrote:
>> On 2/11/19 7:13 PM, James Bottomley wrote:
>>> On Mon, 2019-02-11 at 09:31 -0700, Jens Axboe wrote:
>>>> On 2/11/19 9:28 AM, James Bottomley wrote:
>>>>> On Mon, 2019-02-11 at 08:46 -0700, Jens Axboe wrote:
>>>>>> On 2/11/19 8:42 AM, James Bottomley wrote:
>>>>>>> On Mon, 2019-02-11 at 08:28 -0700, Jens Axboe wrote:
>>>>>>>> On 2/11/19 8:25 AM, James Bottomley wrote:
>>>>>>>>> On Sun, 2019-02-10 at 09:35 -0700, Jens Axboe wrote:
>>>>>>>>>> On 2/10/19 9:25 AM, James Bottomley wrote:
>>>>>
>>>>> [...]
>>>>>>>>>>> That check wasn't changed by the code removal.
>>>>>>>>>>
>>>>>>>>>> As I said above, for sd. This isn't true for non-
>>>>>>>>>> disks.
>>>>>>>>>
>>>>>>>>> Yes, but the behaviour above doesn't change across a
>>>>>>>>> switch
>>>>>>>>> to MQ, so I don't quite understand how it bisects back
>>>>>>>>> to
>>>>>>>>> that change.  If we're not gathering entropy for the
>>>>>>>>> device
>>>>>>>>> now, we wouldn't have been before the switch, so the
>>>>>>>>> entropy characteristics shouldn't have changed.
>>>>>>>>
>>>>>>>> But it does, as I also wrote in that first email. The
>>>>>>>> legacy
>>>>>>>> queue flags had QUEUE_FLAG_ADD_RANDOM set by default, the
>>>>>>>> MQ
>>>>>>>> ones do not. Hence any non-sd device would previously
>>>>>>>> ALWAYS
>>>>>>>> have ADD_RANDOM set, now none of them do. Also see the
>>>>>>>> patch
>>>>>>>> I sent.
>>>>>>>
>>>>>>> So your theory is that the disk in question never gets to
>>>>>>> the
>>>>>>> rotational check?  because the check will clear the flag if
>>>>>>> it's non-rotational and set it if it's not, so the default
>>>>>>> state of the flag shouldn't matter.
>>>>>>
>>>>>> No, my point is about non-disks, devices that aren't driven
>>>>>> by
>>>>>> sd. The behavior for sd hasn't changed, as it sets/clears it
>>>>>> unconditionally. 
>>>>>
>>>>> I agree, but I don't think any of them were significant entropy
>>>>> contributors before: things like nvme have always been outside
>>>>> of
>>>>> this and sr and st don't really contribute much to the seek
>>>>> load
>>>>> during boot because they're probed but not used by the boot
>>>>> sequence, so I can't see how they would cause this
>>>>> behaviour.  I
>>>>> suppose it could be target probing, but even that seems
>>>>> unlikely
>>>>> because it should be dwarfed by the number of root disk reads
>>>>> during boot.
>>>>>
>>>>> For the rng to take an additional 5 minutes to initialize, we
>>>>> must
>>>>> have lost a significant entropy source somewhere.
>>>>
>>>> I agree it's not a significant amount of entropy, but even just
>>>> one
>>>> bit could mean a long stall if that put us over the edge of just
>>>> not
>>>> having enough for whatever is blocking on /dev/random. Mikael's
>>>> boot
>>>> did have a CDROM, it's not impossible that the handful of
>>>> commands we
>>>> end up doing to that device would have contributed enough entropy
>>>> to
>>>> get the boot done without stalling for minutes.
>>>>
>>>> One way to know for sure, and that's if Mikael tests the patch.
>>>
>>> I think I've got the root cause.  I have one system in my test bed
>>> exhibiting this behaviour.  It turns out the disk in it has no
>>> characteristics VPD page.  The 0xB1 VPD was a SBC-3 addition, so
>>> that's
>>> not surprising.  However, the characteristics check bails before
>>> setting the flags, so it takes the default flag which has flipped.
>>>
>>> We can either fix this by setting the QUEUE_FLAG_ADD_RANDOM if
>>> there's
>>> no 0xB1 page or by setting the default as Jens proposed.
>>
>> I'd recommend just doing my patch, since that'll be the same behavior
>> that SCSI had before.
> 
> I've got the history now, it's this patch
> 
> Author: Xuewei Zhang <xueweiz@google.com>
> Date:   Thu Sep 6 13:37:19 2018 -0700
> 
>     scsi: sd: Contribute to randomness when running rotational device
> 
> It added the else branch to the if (rot == 1).  It's the position of
> that else branch which is wrong because not all disks have a SBC-3
> characteristics VPD page, so they're the ones under MQ which stop
> contributing entropy.  Whichever patch we go with will need a fixes:
> for this.

Ah, makes sense. I'd say we're _probably_ fine just fixing that then,
or at least it should be two separate patches.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 20+ messages in thread

* Re: [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500
  2019-02-10 16:05       ` Jens Axboe
  2019-02-10 16:25         ` James Bottomley
@ 2019-02-14 18:35         ` Mikael Pettersson
  1 sibling, 0 replies; 20+ messages in thread
From: Mikael Pettersson @ 2019-02-14 18:35 UTC (permalink / raw)
  To: Jens Axboe
  Cc: James Bottomley, Linux SPARC Kernel Mailing List, linux-block,
	linux-kernel

On Sun, Feb 10, 2019 at 5:05 PM Jens Axboe <axboe@kernel.dk> wrote:
>
> On 2/10/19 8:44 AM, James Bottomley wrote:
> > On Sun, 2019-02-10 at 10:17 +0100, Mikael Pettersson wrote:
> >> On Sat, Feb 9, 2019 at 7:19 PM James Bottomley
> >> <James.Bottomley@hansenpartnership.com> wrote:
> > [...]
> >>> I think the reason for this is that the block mq path doesn't feed
> >>> the kernel entropy pool correctly, hence the need to install an
> >>> entropy gatherer for systems that don't have other good random
> >>> number sources.
> >>
> >> That does sound plausible, I admit I didn't even consider the
> >> possibility that the old block I/O path also was an entropy source.
> >
> > In theory, the new one should be as well since the rotational entropy
> > collector is on the SCSI completion path.   I'd seen the same problem
> > but had assumed it was something someone had done to our internal
> > entropy pool and thus hadn't bisected it.
>
> The difference is that the old stack included ADD_RANDOM by default,
> so this check:
>
>         if (blk_queue_add_random(q))
>                 add_disk_randomness(req->rq_disk);
>
> in scsi_end_request() would be true, and we'd add the randomness. For
> sd, it seems to set it just fine for non-rotational drives. Could this
> be because other devices don't? Maybe the below makes a difference.
>
>
> diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
> index 6d65ac584eba..60e029911755 100644
> --- a/drivers/scsi/scsi_lib.c
> +++ b/drivers/scsi/scsi_lib.c
> @@ -1881,6 +1881,7 @@ struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev)
>         sdev->request_queue->queuedata = sdev;
>         __scsi_init_queue(sdev->host, sdev->request_queue);
>         blk_queue_flag_set(QUEUE_FLAG_SCSI_PASSTHROUGH, sdev->request_queue);
> +       blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, sdev->request_queue);
>         return sdev->request_queue;
>  }

This patch eliminates my 5 minute boot-up delay problem.

/Mikael

^ permalink raw reply	[flat|nested] 20+ messages in thread

end of thread, back to index

Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-09 17:04 [5.0-rc5 regression] "scsi: kill off the legacy IO path" causes 5 minute delay during boot on Sun Blade 2500 Mikael Pettersson
2019-02-09 18:19 ` James Bottomley
2019-02-10  9:17   ` Mikael Pettersson
2019-02-10 15:44     ` James Bottomley
2019-02-10 16:05       ` Jens Axboe
2019-02-10 16:25         ` James Bottomley
2019-02-10 16:35           ` Jens Axboe
2019-02-11 15:25             ` James Bottomley
2019-02-11 15:28               ` Jens Axboe
2019-02-11 15:42                 ` James Bottomley
2019-02-11 15:46                   ` Jens Axboe
2019-02-11 16:28                     ` James Bottomley
2019-02-11 16:31                       ` Jens Axboe
2019-02-12  2:13                         ` James Bottomley
2019-02-12  2:50                           ` Jens Axboe
2019-02-12  3:37                             ` Elliott, Robert (Persistent Memory)
2019-02-12  4:15                               ` James Bottomley
2019-02-12 15:24                             ` James Bottomley
2019-02-12 15:27                               ` Jens Axboe
2019-02-14 18:35         ` Mikael Pettersson

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