* srcu: BUG in __synchronize_srcu
@ 2017-03-10 19:28 Andrey Konovalov
2017-03-10 19:29 ` Andrey Konovalov
0 siblings, 1 reply; 11+ messages in thread
From: Andrey Konovalov @ 2017-03-10 19:28 UTC (permalink / raw)
To: Lai Jiangshan, Paul E. McKenney, Josh Triplett, Steven Rostedt,
Mathieu Desnoyers, LKML
Cc: syzkaller, Dmitry Vyukov, Kostya Serebryany
[-- Attachment #1: Type: text/plain, Size: 6784 bytes --]
Hi,
I've got the following error report while fuzzing the kernel with
syzkaller on an arm64 board.
On linux-next commit 56b8bad5e066c23e8fa273ef5fba50bd3da2ace8 (Mar 8).
A reproducer and .config are attached.
The bug happens while executing the following syzkaller program in a loop.
While it looks kvm-related, it might be that kvm just stresses the
srcu subsystem.
mmap(&(0x7f0000000000/0xfff000)=nil, (0xfff000), 0x3, 0x32,
0xffffffffffffffff, 0x0)
r0 = openat$kvm(0xffffffffffffff9c,
&(0x7f0000a05000)="2f6465762f6b766d00", 0x0, 0x0)
ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
------------[ cut here ]------------
kernel BUG at kernel/rcu/srcu.c:436!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in: meson_drm drm_kms_helper drm dwmac_generic realtek
dwmac_meson8b stmmac_platform stmmac meson_rng rng_core meson_gxbb_wdt
ipv6
CPU: 3 PID: 4250 Comm: a.out Not tainted 4.11.0-rc1-next-20170308-xc2-dirty #3
Hardware name: Hardkernel ODROID-C2 (DT)
task: ffff800063699700 task.stack: ffff800063cfc000
PC is at[< none >] __synchronize_srcu+0x3d0/0x470
kernel/rcu/srcu.c:412
LR is at[< none >] __synchronize_srcu+0x130/0x470
kernel/rcu/srcu.c:434
pc : [<ffff20000821a3b8>] lr : [<ffff20000821a118>] pstate: 80000145
sp : ffff800063cffb00
x29: ffff800063cffb00 x28: ffff80005b1d6e00
x27: 1fffe4000156b242 x26: ffff800063cffb70
x25: 1fffe4000156b23b x24: ffff20000ab591d8
x23: ffff200009dbf000 x22: ffff20000ab591a0
x21: ffff20000ab59210 x20: ffff800063cffb70
x19: ffff20000ab59190 x18: 0000000000000a03
x17: 0000ffff944f3950 x16: ffff20000811f818
x15: 0000000000000000 x14: 0000000000000007
x13: 0000000000000002 x12: 0000000000000000
x11: 0000000000000040 x10: 1fffe400014b568c
x9 : ffff20000ab29000 x8 : 0000000000000007
x7 : 0000000000000001 x6 : 0000000000000000
x5 : 0000000000000040 x4 : 0000000000000003
x3 : ffff20000ab59208 x2 : 1fffe4000156b243
x1 : 0000000000000000 x0 : ffff80005e71fb70
Process a.out (pid: 4250, stack limit = 0xffff800063cfc000)
Stack: (0xffff800063cffb00 to 0xffff800063d00000)
fb00: ffff800063cffbd0 ffff20000821a480 ffff20000ab59190 1ffff0000b63adc0
fb20: dfff200000000000 ffff20000ab59190 ffff80004b9a8a00 1ffff000097351bc
fb40: ffff80004b9a8de0 0000000000000000 ffff800060cad328 ffff80005b1d6e00
fb60: ffff80004b9a8a00 1ffff000097351bc ffff80004f5e7b70 ffff200008217968
fb80: ffff800000000001 dead4ead00010001 dfff2000ffffffff ffffffffffffffff
fba0: ffff20000ab4c4b0 0000000000000000 0000000000000000 ffff200009b0b358
fbc0: ffff800063cffbc0 ffff800063cffbc0 ffff800063cffbf0 ffff2000083ffd20
fbe0: ffff80005b1d6e00 0000000000000140 ffff800063cffc50 ffff2000083aedfc
fc00: ffff80004b9a8a00 ffff80004b9a8a00 ffff80004b9a8d78 0000000000000001
fc20: 00000000000002a6 ffff80004f406780 ffff80004b9a8aa0 ffff800063699ac8
fc40: 1ffff0000c6d3359 ffff800063699700 ffff800063cffd20 ffff20000810caec
fc60: ffff80004b9a8a00 ffff80004b9a8b20 ffff80004b9a8d78 0000000000000001
fc80: ffff80005ebae2d8 ffff800063699ac8 ffff800063cffca0 ffff20000840fc08
fca0: ffff800063cffce0 ffff20000843327c ffff80005ebae2d8 ffff80004b9a8a00
fcc0: ffff80005ebae0f0 ffff200009de8000 ffff800063cffce0 ffff2000084332c4
fce0: ffff800063cffd20 ffff20000810cc64 ffff80004b9a8a00 ffff80004b9a8a48
fd00: ffff80004b9a8d78 0000000000000001 ffff800063cffd20 ffff20000810cae0
fd20: ffff800063cffd60 ffff20000811db88 ffff800063699700 ffff800063699700
fd40: ffff80004b9a8a00 0000000000000001 00000000000002a6 ffff80004f406780
fd60: ffff800063cffe40 ffff20000811f694 ffff80004f406780 0000000000000000
fd80: ffff80004f40681c 0000000000000004 1ffff00009e80d03 1ffff00009e80d02
fda0: ffff80004f406810 ffff800063699bd0 ffff800063699700 ffff800063699700
fdc0: ffff800063cffe80 ffff200008490868 0000000000000000 ffff80005fd45000
fde0: ffff80006369972c ffff800063699d48 1ffff0000c6d32e5 0000000000000004
fe00: 0000000000000123 000000000000001d 1ffff0000c6d33a9 ffff800063699700
fe20: ffff800063cffe30 ffff200008813c5c ffff800063cffe40 ffff20000811f688
fe40: ffff800063cffea0 ffff20000811f838 0000000000000000 000060006d24d000
fe60: ffffffffffffffff 0000ffff944f3974 0000000000000000 0000000000000015
fe80: 0000000000000123 000000000000005e ffff200009852000 ffff20000811f82c
fea0: 0000000000000000 ffff200008083f70 0000000000000000 0000000000000015
fec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
fee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ff00: 000000000000005e ffffff80ffffffd0 0101010101010101 0000000000000020
ff20: 0000000000000018 0000000056bcb768 0000000000000000 0000ffff945be000
ff40: 0000000000413110 0000ffff944f3950 0000000000000a03 00000000004020f8
ff60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ff80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ffa0: 0000000000000000 0000ffffc0cc99b0 0000000000401248 0000ffffc0cc99b0
ffc0: 0000ffff944f3974 0000000000000000 0000000000000000 000000000000005e
ffe0: 0000000000000000 0000000000000000 0403030303030100 0807060606060605
Call trace:
Exception stack(0xffff800063cff910 to 0xffff800063cffa40)
f900: ffff20000ab59190 0001000000000000
f920: ffff800063cffb00 ffff20000821a3b8 0000000080000145 000000000000003d
f940: 1fffe4000156b23b ffff800063cffb70 ffff800063cff980 0001000000000000
f960: ffff800063cff9d0 ffff2000081da8e8 ffff800063699ec0 ffff200009df9000
f980: ffff800063cff990 ffff20000891e1e0 ffff800063cff9d0 ffff20000891e23c
f9a0: ffff200009dbfe18 0000000000000040 0000000000000004 0000000000000001
f9c0: 00000000000008ac 00000000000008ac ffff80005e71fb70 0000000000000000
f9e0: 1fffe4000156b243 ffff20000ab59208 0000000000000003 0000000000000040
fa00: 0000000000000000 0000000000000001 0000000000000007 ffff20000ab29000
fa20: 1fffe400014b568c 0000000000000040 0000000000000000 0000000000000002
[<ffff20000821a3b8>] __synchronize_srcu+0x3d0/0x470 kernel/rcu/srcu.c:412
[<ffff20000821a480>] synchronize_srcu+0x28/0x60 kernel/rcu/srcu.c:516
[<ffff2000083ffd20>] __mmu_notifier_release+0x268/0x3e0 mm/mmu_notifier.c:102
[< inline >] mmu_notifier_release ./include/linux/mmu_notifier.h:235
[<ffff2000083aedfc>] exit_mmap+0x21c/0x288 mm/mmap.c:2941
[< inline >] __mmput kernel/fork.c:881
[<ffff20000810caec>] mmput+0xdc/0x2e0 kernel/fork.c:903
[< inline >] exit_mm kernel/exit.c:557
[<ffff20000811db88>] do_exit+0x648/0x2020 kernel/exit.c:865
[<ffff20000811f694>] do_group_exit+0xdc/0x260 kernel/exit.c:982
[< inline >] SYSC_exit_group kernel/exit.c:993
[<ffff20000811f838>] __wake_up_parent+0x0/0x60 kernel/exit.c:991
[<ffff200008083f70>] el0_svc_naked+0x24/0x28 arch/arm64/kernel/entry.S:813
Code: 97feee10 35fff680 17ffff1c d503201f (d4210000)
---[ end trace b727e9858bfac1ff ]---
Kernel panic - not syncing: Fatal exception
[-- Attachment #2: .config --]
[-- Type: application/octet-stream, Size: 151074 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm64 4.11.0-rc1 Kernel Configuration
#
CONFIG_ARM64=y
CONFIG_64BIT=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_MMU=y
CONFIG_ARM64_PAGE_SHIFT=12
CONFIG_ARM64_CONT_SHIFT=4
CONFIG_ARCH_MMAP_RND_BITS_MIN=18
CONFIG_ARCH_MMAP_RND_BITS_MAX=33
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ZONE_DMA=y
CONFIG_HAVE_GENERIC_RCU_GUP=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_SMP=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_KERNEL_MODE_NEON=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_HANDLE_DOMAIN_IRQ=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_ARCH_HAS_TICK_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=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 is not set
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
#
# RCU Subsystem
#
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
# CONFIG_TASKS_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_TREE_RCU_TRACE is not set
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_NUMA_BALANCING=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_SWAP_ENABLED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_CGROUP_PIDS=y
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_SCHED_AUTOGROUP=y
# 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=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_INITRAMFS_COMPRESSION=".gz"
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_BPF=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
# CONFIG_SGETMASK_SYSCALL is not set
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_POSIX_TIMERS=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_ABSOLUTE_PERCPU is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_BPF_SYSCALL is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
# CONFIG_USERFAULTFD is not set
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
# CONFIG_PC104 is not set
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_MEMCG_SYSFS_ON is not set
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
CONFIG_PROFILING=y
CONFIG_KEXEC_CORE=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_UPROBES is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_RCU_TABLE_FREE=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
CONFIG_GCC_PLUGIN_SANCOV=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
# CONFIG_GCC_PLUGIN_INITIFY is not set
CONFIG_HAVE_GCC_PLUGIN_INITIFY_INIT_EXIT=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK is not set
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=18
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
# CONFIG_HAVE_ARCH_HASH is not set
# CONFIG_ISA_BUS_API is not set
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
# CONFIG_CPU_NO_EFFICIENT_FFS is not set
# CONFIG_HAVE_ARCH_VMAP_STACK is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
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_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
CONFIG_BLK_DEV_INTEGRITY=y
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_DEV_THROTTLING is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
# CONFIG_BLK_WBT is not set
CONFIG_BLK_DEBUG_FS=y
# CONFIG_BLK_SED_OPAL is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLOCK_COMPAT=y
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_IOSCHED_CFQ=y
# CONFIG_CFQ_GROUP_IOSCHED is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_UNINLINE_SPIN_UNLOCK=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_FREEZER=y
#
# Platform selection
#
CONFIG_ARCH_SUNXI=y
CONFIG_ARCH_ALPINE=y
CONFIG_ARCH_BCM2835=y
CONFIG_ARCH_BCM_IPROC=y
CONFIG_ARCH_BERLIN=y
# CONFIG_ARCH_BRCMSTB is not set
CONFIG_ARCH_EXYNOS=y
CONFIG_ARCH_LAYERSCAPE=y
CONFIG_ARCH_LG1K=y
CONFIG_ARCH_HISI=y
CONFIG_ARCH_MEDIATEK=y
CONFIG_ARCH_MESON=y
CONFIG_ARCH_MVEBU=y
CONFIG_ARCH_QCOM=y
CONFIG_ARCH_ROCKCHIP=y
CONFIG_ARCH_SEATTLE=y
CONFIG_ARCH_SHMOBILE=y
CONFIG_ARCH_RENESAS=y
CONFIG_ARCH_R8A7795=y
CONFIG_ARCH_R8A7796=y
CONFIG_ARCH_STRATIX10=y
CONFIG_ARCH_TEGRA=y
CONFIG_ARCH_SPRD=y
CONFIG_ARCH_THUNDER=y
CONFIG_ARCH_THUNDER2=y
CONFIG_ARCH_UNIPHIER=y
CONFIG_ARCH_VEXPRESS=y
CONFIG_ARCH_VULCAN=y
CONFIG_ARCH_XGENE=y
CONFIG_ARCH_ZX=y
CONFIG_ARCH_ZYNQMP=y
#
# Bus support
#
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_DOMAINS_GENERIC=y
CONFIG_PCI_SYSCALL=y
CONFIG_PCIEPORTBUS=y
CONFIG_PCIEAER=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEAER_INJECT is not set
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
# CONFIG_PCIE_DPC is not set
# CONFIG_PCIE_PTM is not set
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
CONFIG_PCI_ATS=y
CONFIG_PCI_ECAM=y
CONFIG_PCI_IOV=y
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LABEL=y
# CONFIG_HOTPLUG_PCI is not set
#
# DesignWare PCI Core Support
#
CONFIG_PCIE_DW=y
CONFIG_PCIE_DW_HOST=y
# CONFIG_PCIE_DW_PLAT is not set
CONFIG_PCI_LAYERSCAPE=y
CONFIG_PCI_HISI=y
CONFIG_PCIE_QCOM=y
CONFIG_PCIE_ARMADA_8K=y
#
# PCI host controller drivers
#
CONFIG_PCI_AARDVARK=y
# CONFIG_PCIE_XILINX_NWL is not set
# CONFIG_PCI_TEGRA is not set
CONFIG_PCIE_RCAR=y
CONFIG_PCI_HOST_COMMON=y
CONFIG_PCI_HOST_GENERIC=y
CONFIG_PCI_XGENE=y
CONFIG_PCI_XGENE_MSI=y
CONFIG_PCIE_IPROC=y
CONFIG_PCIE_IPROC_PLATFORM=y
CONFIG_PCIE_IPROC_MSI=y
# CONFIG_PCI_HOST_THUNDER_PEM is not set
# CONFIG_PCI_HOST_THUNDER_ECAM is not set
# CONFIG_PCIE_ROCKCHIP is not set
#
# Kernel Features
#
#
# ARM errata workarounds via the alternatives framework
#
CONFIG_ARM64_ERRATUM_826319=y
CONFIG_ARM64_ERRATUM_827319=y
CONFIG_ARM64_ERRATUM_824069=y
CONFIG_ARM64_ERRATUM_819472=y
CONFIG_ARM64_ERRATUM_832075=y
CONFIG_ARM64_ERRATUM_834220=y
CONFIG_ARM64_ERRATUM_845719=y
CONFIG_ARM64_ERRATUM_843419=y
CONFIG_CAVIUM_ERRATUM_22375=y
CONFIG_CAVIUM_ERRATUM_23144=y
CONFIG_CAVIUM_ERRATUM_23154=y
CONFIG_CAVIUM_ERRATUM_27456=y
CONFIG_QCOM_FALKOR_ERRATUM_1003=y
CONFIG_QCOM_FALKOR_ERRATUM_1009=y
CONFIG_ARM64_4K_PAGES=y
# CONFIG_ARM64_16K_PAGES is not set
# CONFIG_ARM64_64K_PAGES is not set
# CONFIG_ARM64_VA_BITS_39 is not set
CONFIG_ARM64_VA_BITS_48=y
CONFIG_ARM64_VA_BITS=48
# CONFIG_CPU_BIG_ENDIAN is not set
CONFIG_SCHED_MC=y
# CONFIG_SCHED_SMT is not set
CONFIG_NR_CPUS=64
CONFIG_HOTPLUG_CPU=y
CONFIG_NUMA=y
CONFIG_NODES_SHIFT=2
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_HOLES_IN_ZONE=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_HAVE_ARCH_PFN_VALID=y
CONFIG_HW_PERF_EVENTS=y
CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
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=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_NO_BOOTMEM=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_BOUNCE=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
CONFIG_CMA_AREAS=7
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_FRAME_VECTOR=y
CONFIG_SECCOMP=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_KEXEC=y
CONFIG_XEN_DOM0=y
CONFIG_XEN=y
CONFIG_FORCE_MAX_ZONEORDER=11
# CONFIG_ARMV8_DEPRECATED is not set
# CONFIG_ARM64_SW_TTBR0_PAN is not set
#
# ARMv8.1 architectural features
#
CONFIG_ARM64_HW_AFDBM=y
CONFIG_ARM64_PAN=y
# CONFIG_ARM64_LSE_ATOMICS is not set
CONFIG_ARM64_VHE=y
#
# ARMv8.2 architectural features
#
CONFIG_ARM64_UAO=y
CONFIG_ARM64_MODULE_CMODEL_LARGE=y
# CONFIG_RANDOMIZE_BASE is not set
#
# Boot options
#
# CONFIG_ARM64_ACPI_PARKING_PROTOCOL is not set
CONFIG_CMDLINE=""
# CONFIG_CMDLINE_FORCE is not set
CONFIG_EFI_STUB=y
CONFIG_EFI=y
CONFIG_DMI=y
#
# Userspace binary formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
#
# Power management options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_PM_OPP=y
CONFIG_PM_CLK=y
CONFIG_PM_GENERIC_DOMAINS=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
CONFIG_PM_GENERIC_DOMAINS_OF=y
CONFIG_CPU_PM=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
#
# CPU Power Management
#
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
CONFIG_DT_IDLE_STATES=y
#
# ARM CPU Idle Drivers
#
CONFIG_ARM_CPUIDLE=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_GOV_SCHEDUTIL is not set
#
# CPU frequency scaling drivers
#
CONFIG_CPUFREQ_DT=y
CONFIG_CPUFREQ_DT_PLATDEV=y
CONFIG_ARM_BIG_LITTLE_CPUFREQ=y
# CONFIG_ARM_DT_BL_CPUFREQ is not set
# CONFIG_ARM_KIRKWOOD_CPUFREQ is not set
# CONFIG_ARM_MT8173_CPUFREQ is not set
CONFIG_ARM_SCPI_CPUFREQ=y
CONFIG_ARM_TEGRA20_CPUFREQ=y
CONFIG_ARM_TEGRA124_CPUFREQ=y
# CONFIG_ACPI_CPPC_CPUFREQ is not set
# CONFIG_QORIQ_CPUFREQ is not set
CONFIG_NET=y
CONFIG_NET_INGRESS=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=m
# CONFIG_IP_MROUTE is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=m
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_RAW_DIAG is not set
# CONFIG_INET_DIAG_DESTROY 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_IPV6_ILA is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=m
CONFIG_INET6_XFRM_MODE_BEET=m
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=m
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_FOU is not set
# CONFIG_IPV6_FOU_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=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_COMMON=m
# CONFIG_NF_LOG_NETDEV is not set
# CONFIG_NF_CONNTRACK_MARK is not set
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
CONFIG_NF_CT_PROTO_DCCP=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
# CONFIG_NF_CONNTRACK_AMANDA is not set
# CONFIG_NF_CONNTRACK_FTP is not set
# CONFIG_NF_CONNTRACK_H323 is not set
# CONFIG_NF_CONNTRACK_IRC is not set
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
# CONFIG_NF_CONNTRACK_SNMP is not set
# CONFIG_NF_CONNTRACK_PPTP is not set
# CONFIG_NF_CONNTRACK_SANE is not set
# CONFIG_NF_CONNTRACK_SIP is not set
# CONFIG_NF_CONNTRACK_TFTP is not set
# CONFIG_NF_CT_NETLINK is not set
# CONFIG_NF_CT_NETLINK_TIMEOUT is not set
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_NF_NAT_PROTO_DCCP=y
CONFIG_NF_NAT_PROTO_UDPLITE=y
CONFIG_NF_NAT_PROTO_SCTP=y
# CONFIG_NF_NAT_AMANDA is not set
# CONFIG_NF_NAT_FTP is not set
# CONFIG_NF_NAT_IRC is not set
# CONFIG_NF_NAT_SIP is not set
# CONFIG_NF_NAT_TFTP is not set
# CONFIG_NF_NAT_REDIRECT is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=m
#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set
# CONFIG_NETFILTER_XT_CONNMARK is not set
#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_AUDIT is not set
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
# CONFIG_NETFILTER_XT_TARGET_HL is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
CONFIG_NETFILTER_XT_NAT=m
# CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_REDIRECT is not set
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TPROXY is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
# CONFIG_NETFILTER_XT_MATCH_HL is not set
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_STATE is not set
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
# CONFIG_NF_SOCKET_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_IPV4=m
CONFIG_NF_NAT_MASQUERADE_IPV4=m
# CONFIG_NF_NAT_PPTP is not set
# CONFIG_NF_NAT_H323 is not set
CONFIG_IP_NF_IPTABLES=m
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_RPFILTER is not set
# CONFIG_IP_NF_MATCH_TTL is not set
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
# CONFIG_IP_NF_TARGET_NETMAP is not set
# CONFIG_IP_NF_TARGET_REDIRECT is not set
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
# CONFIG_IP_NF_TARGET_ECN is not set
# CONFIG_IP_NF_TARGET_TTL is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_SECURITY is not set
# CONFIG_IP_NF_ARPTABLES is not set
#
# IPv6: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_CONNTRACK_IPV6=m
# CONFIG_NF_SOCKET_IPV6 is not set
# CONFIG_NF_DUP_IPV6 is not set
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_NF_NAT_IPV6=m
CONFIG_NF_NAT_MASQUERADE_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
# CONFIG_IP6_NF_MATCH_AH is not set
# CONFIG_IP6_NF_MATCH_EUI64 is not set
# CONFIG_IP6_NF_MATCH_FRAG is not set
# CONFIG_IP6_NF_MATCH_OPTS is not set
# CONFIG_IP6_NF_MATCH_HL is not set
# CONFIG_IP6_NF_MATCH_IPV6HEADER is not set
# CONFIG_IP6_NF_MATCH_MH is not set
# CONFIG_IP6_NF_MATCH_RPFILTER is not set
# CONFIG_IP6_NF_MATCH_RT is not set
# CONFIG_IP6_NF_TARGET_HL is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_TARGET_SYNPROXY is not set
CONFIG_IP6_NF_MANGLE=m
# CONFIG_IP6_NF_RAW is not set
# CONFIG_IP6_NF_SECURITY is not set
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
# CONFIG_IP6_NF_TARGET_NPT is not set
# CONFIG_BRIDGE_NF_EBTABLES 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_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
CONFIG_HAVE_NET_DSA=y
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_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_DNS_RESOLVER=y
# 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_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_QRTR 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=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_BREDR=y
# CONFIG_BT_RFCOMM is not set
# CONFIG_BT_BNEP is not set
CONFIG_BT_HIDP=m
# CONFIG_BT_HS is not set
# CONFIG_BT_LE is not set
CONFIG_BT_LEDS=y
# CONFIG_BT_SELFTEST is not set
# CONFIG_BT_DEBUGFS is not set
#
# Bluetooth device drivers
#
# CONFIG_BT_HCIBTUSB is not set
# CONFIG_BT_HCIBTSDIO is not set
CONFIG_BT_HCIUART=m
# CONFIG_BT_HCIUART_H4 is not set
# CONFIG_BT_HCIUART_BCSP is not set
# CONFIG_BT_HCIUART_ATH3K is not set
CONFIG_BT_HCIUART_LL=y
# CONFIG_BT_HCIUART_3WIRE is not set
# CONFIG_BT_HCIUART_INTEL is not set
# CONFIG_BT_HCIUART_BCM is not set
# CONFIG_BT_HCIUART_QCA is not set
# CONFIG_BT_HCIUART_AG6XX is not set
# CONFIG_BT_HCIUART_MRVL is not set
# CONFIG_BT_HCIBCM203X is not set
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
# CONFIG_BT_HCIVHCI is not set
# CONFIG_BT_MRVL is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_STREAM_PARSER is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
# CONFIG_CFG80211_WEXT is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
# CONFIG_MAC80211_RC_MINSTREL_VHT is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_DEBUG 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_DST_CACHE=y
CONFIG_GRO_CELLS=y
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y
CONFIG_HAVE_EBPF_JIT=y
#
# Device Drivers
#
CONFIG_ARM_AMBA=y
CONFIG_TEGRA_AHB=y
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK 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_SYS_HYPERVISOR=y
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_SOC_BUS=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_SPMI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
CONFIG_DMA_CMA=y
#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=16
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
#
# Bus devices
#
# CONFIG_ARM_CCI400_PMU is not set
# CONFIG_ARM_CCI5xx_PMU is not set
# CONFIG_ARM_CCN is not set
CONFIG_QCOM_EBI2=y
# CONFIG_SIMPLE_PM_BUS is not set
# CONFIG_SUNXI_RSB is not set
# CONFIG_TEGRA_ACONNECT is not set
# CONFIG_TEGRA_GMI is not set
CONFIG_UNIPHIER_SYSTEM_BUS=y
CONFIG_VEXPRESS_CONFIG=y
# CONFIG_CONNECTOR is not set
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_AFS_PARTS is not set
CONFIG_MTD_OF_PARTS=y
# CONFIG_MTD_AR7_PARTS is not set
#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
# CONFIG_SSFDC is not set
# CONFIG_SM_FTL is not set
# CONFIG_MTD_OOPS is not set
# CONFIG_MTD_SWAP is not set
# CONFIG_MTD_PARTITIONED_MASTER is not set
#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_DATAFLASH is not set
CONFIG_MTD_M25P80=y
# CONFIG_MTD_SST25L is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLOCK2MTD is not set
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
CONFIG_MTD_NAND_ECC=y
# CONFIG_MTD_NAND_ECC_SMC is not set
CONFIG_MTD_NAND=y
# CONFIG_MTD_NAND_ECC_BCH is not set
# CONFIG_MTD_SM_COMMON is not set
CONFIG_MTD_NAND_DENALI=y
# CONFIG_MTD_NAND_DENALI_PCI is not set
CONFIG_MTD_NAND_DENALI_DT=y
# CONFIG_MTD_NAND_GPIO is not set
# CONFIG_MTD_NAND_OMAP_BCH_BUILD is not set
CONFIG_MTD_NAND_IDS=y
# CONFIG_MTD_NAND_RICOH is not set
# CONFIG_MTD_NAND_DISKONCHIP is not set
# CONFIG_MTD_NAND_DOCG4 is not set
# CONFIG_MTD_NAND_CAFE is not set
# CONFIG_MTD_NAND_NANDSIM is not set
# CONFIG_MTD_NAND_BRCMNAND is not set
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_NAND_FSL_IFC is not set
# CONFIG_MTD_NAND_SUNXI is not set
# CONFIG_MTD_NAND_HISI504 is not set
# CONFIG_MTD_NAND_QCOM is not set
# CONFIG_MTD_NAND_MTK is not set
# CONFIG_MTD_ONENAND is not set
#
# LPDDR & LPDDR2 PCM memory drivers
#
# CONFIG_MTD_LPDDR is not set
CONFIG_MTD_SPI_NOR=y
# CONFIG_MTD_MT81xx_NOR is not set
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y
# CONFIG_SPI_FSL_QUADSPI is not set
# CONFIG_SPI_HISI_SFC is not set
# CONFIG_MTD_UBI is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_ADDRESS_PCI=y
CONFIG_OF_IRQ=y
CONFIG_OF_NET=y
CONFIG_OF_MDIO=y
CONFIG_OF_PCI=y
CONFIG_OF_PCI_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
CONFIG_OF_NUMA=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
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=m
# 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_XEN_BLKDEV_FRONTEND=y
# CONFIG_XEN_BLKDEV_BACKEND is not set
CONFIG_VIRTIO_BLK=y
# CONFIG_VIRTIO_BLK_SCSI is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TARGET is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# 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_QCOM_COINCELL 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_TI_DAC7512 is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
CONFIG_SRAM=y
CONFIG_VEXPRESS_SYSCFG=y
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
CONFIG_EEPROM_AT25=m
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_CB710_CORE is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
#
# 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_CXL_BASE is not set
# CONFIG_CXL_AFU_DRIVER_OPS 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_NETLINK is not set
# CONFIG_SCSI_MQ_DEFAULT is not set
# CONFIG_SCSI_PROC_FS is not set
#
# 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 is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
CONFIG_SCSI_SAS_ATTRS=y
CONFIG_SCSI_SAS_LIBSAS=y
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
# 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_HISI_SAS=y
# 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_XEN_SCSI_FRONTEND is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 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_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_HAVE_PATA_PLATFORM=y
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_AHCI_CEVA=y
CONFIG_AHCI_MVEBU=y
# CONFIG_AHCI_SUNXI is not set
# CONFIG_AHCI_TEGRA is not set
CONFIG_AHCI_XGENE=y
CONFIG_AHCI_QORIQ=y
# CONFIG_SATA_AHCI_SEATTLE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
CONFIG_SATA_SIL24=y
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_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
CONFIG_SATA_RCAR=y
# 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 is not set
# 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=y
CONFIG_PATA_OF_PLATFORM=y
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
# 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_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_NET_TEAM is not set
CONFIG_MACVLAN=m
CONFIG_MACVTAP=m
# CONFIG_VXLAN is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
CONFIG_TUN=y
CONFIG_TAP=m
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=m
CONFIG_VIRTIO_NET=y
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set
#
# CAIF transport drivers
#
#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALLWINNER=y
# CONFIG_SUN4I_EMAC is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AMD=y
# CONFIG_AMD8111_ETH is not set
# CONFIG_PCNET32 is not set
CONFIG_AMD_XGBE=y
# CONFIG_AMD_XGBE_HAVE_ECC is not set
CONFIG_NET_XGENE=y
CONFIG_NET_VENDOR_AQUANTIA=y
CONFIG_NET_VENDOR_ARC=y
# CONFIG_EMAC_ROCKCHIP is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
# CONFIG_NET_VENDOR_AURORA is not set
CONFIG_NET_CADENCE=y
CONFIG_MACB=y
# CONFIG_MACB_PCI 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 is not set
# CONFIG_BNX2X is not set
CONFIG_BGMAC=y
CONFIG_BGMAC_PLATFORM=y
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_EZCHIP=y
# CONFIG_EZCHIP_NPS_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_EXAR=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_FREESCALE=y
# CONFIG_FSL_FMAN is not set
# CONFIG_FSL_PQ_MDIO is not set
# CONFIG_FSL_XGMAC_MDIO is not set
# CONFIG_GIANFAR is not set
CONFIG_NET_VENDOR_HISILICON=y
# CONFIG_HIX5HD2_GMAC is not set
# CONFIG_HISI_FEMAC is not set
# CONFIG_HIP04_ETH is not set
CONFIG_HNS_MDIO=y
CONFIG_HNS=y
CONFIG_HNS_DSAF=y
CONFIG_HNS_ENET=y
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
# CONFIG_E1000 is not set
CONFIG_E1000E=y
CONFIG_IGB=y
CONFIG_IGB_HWMON=y
CONFIG_IGBVF=y
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
# CONFIG_FM10K is not set
CONFIG_NET_VENDOR_I825XX=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_MARVELL=y
CONFIG_MVMDIO=y
CONFIG_MVNETA=y
# CONFIG_MVPP2 is not set
# CONFIG_PXA168_ETH is not set
# CONFIG_SKGE is not set
CONFIG_SKY2=y
# CONFIG_SKY2_DEBUG is not set
# CONFIG_NET_VENDOR_MEDIATEK is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_QLGE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCA7000 is not set
# CONFIG_QCOM_EMAC is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R8169 is not set
CONFIG_NET_VENDOR_RENESAS=y
# CONFIG_SH_ETH is not set
CONFIG_RAVB=y
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
CONFIG_NET_VENDOR_SMSC=y
CONFIG_SMC91X=y
# CONFIG_EPIC100 is not set
CONFIG_SMSC911X=y
# CONFIG_SMSC911X_ARCH_HOOKS is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=m
CONFIG_STMMAC_PLATFORM=m
# CONFIG_DWMAC_DWC_QOS_ETH is not set
CONFIG_DWMAC_GENERIC=m
CONFIG_DWMAC_IPQ806X=m
CONFIG_DWMAC_MESON=m
CONFIG_DWMAC_ROCKCHIP=m
CONFIG_DWMAC_SUNXI=m
# CONFIG_STMMAC_PCI is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_ALE is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
#
# MDIO bus device drivers
#
# CONFIG_MDIO_BCM_IPROC is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
CONFIG_MDIO_BITBANG=y
CONFIG_MDIO_BUS_MUX=y
CONFIG_MDIO_BUS_MUX_BCM_IPROC=y
# CONFIG_MDIO_BUS_MUX_GPIO is not set
CONFIG_MDIO_BUS_MUX_MMIOREG=y
# CONFIG_MDIO_GPIO is not set
# CONFIG_MDIO_HISI_FEMAC is not set
# CONFIG_MDIO_OCTEON is not set
# CONFIG_MDIO_SUN4I is not set
# CONFIG_MDIO_THUNDER is not set
CONFIG_MDIO_XGENE=y
#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_AQUANTIA_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_DAVICOM_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_MESON_GXL_PHY=m
CONFIG_MICREL_PHY=y
# CONFIG_MICROCHIP_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=m
# 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_MICREL_KS8995MA is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=m
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDCETHER=m
# CONFIG_USB_NET_CDC_EEM is not set
CONFIG_USB_NET_CDC_NCM=m
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
CONFIG_USB_NET_DM9601=m
# CONFIG_USB_NET_SR9700 is not set
CONFIG_USB_NET_SR9800=m
CONFIG_USB_NET_SMSC75XX=m
CONFIG_USB_NET_SMSC95XX=m
# CONFIG_USB_NET_GL620A is not set
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
# CONFIG_USB_NET_RNDIS_HOST is not set
CONFIG_USB_NET_CDC_SUBSET_ENABLE=m
CONFIG_USB_NET_CDC_SUBSET=m
# CONFIG_USB_ALI_M5632 is not set
# CONFIG_USB_AN2720 is not set
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
# CONFIG_USB_EPSON2888 is not set
# CONFIG_USB_KC2190 is not set
CONFIG_USB_NET_ZAURUS=m
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_VL600 is not set
# CONFIG_USB_NET_CH9200 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
CONFIG_BRCMUTIL=m
# CONFIG_BRCMSMAC is not set
CONFIG_BRCMFMAC=m
CONFIG_BRCMFMAC_PROTO_BCDC=y
CONFIG_BRCMFMAC_SDIO=y
# CONFIG_BRCMFMAC_USB is not set
# CONFIG_BRCMFMAC_PCIE is not set
# CONFIG_BRCM_TRACING is not set
# CONFIG_BRCMDBG is not set
CONFIG_WLAN_VENDOR_CISCO=y
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
# CONFIG_IWLWIFI is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
# CONFIG_PRISM54 is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
CONFIG_WLAN_VENDOR_MEDIATEK=y
# CONFIG_MT7601U is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
CONFIG_WL18XX=m
CONFIG_WLCORE=m
# CONFIG_WLCORE_SPI is not set
CONFIG_WLCORE_SDIO=m
CONFIG_WILINK_PLATFORM_DATA=y
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
CONFIG_XEN_NETDEV_FRONTEND=y
# CONFIG_XEN_NETDEV_BACKEND is not set
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=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 is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=y
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_TEGRA is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_SH_KEYSC is not set
# CONFIG_KEYBOARD_SUN4I_LRADC is not set
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CROS_EC is not set
# CONFIG_KEYBOARD_CAP11XX is not set
# CONFIG_KEYBOARD_BCM is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB 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_PM8941_PWRKEY=y
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_BEEPER is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
# CONFIG_INPUT_GPIO_DECODER 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_REGULATOR_HAPTIC is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_PWM_BEEPER is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set
CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
# CONFIG_INPUT_SOC_BUTTON_ARRAY is not set
# CONFIG_INPUT_DRV260X_HAPTICS is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
CONFIG_INPUT_HISI_POWERKEY=y
# CONFIG_RMI4_CORE is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_AMBAKMI=y
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_APBPS2 is not set
# CONFIG_SERIO_SUN4I_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=16
# 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=y
# CONFIG_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set
CONFIG_SERIAL_8250_BCM2835AUX=y
CONFIG_SERIAL_8250_FSL=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_MT6577=y
CONFIG_SERIAL_8250_UNIPHIER=y
# CONFIG_SERIAL_8250_MOXA is not set
CONFIG_SERIAL_OF_PLATFORM=y
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_AMBA_PL010 is not set
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
# CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST is not set
CONFIG_SERIAL_MESON=y
CONFIG_SERIAL_MESON_CONSOLE=y
CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_UARTS_4=y
CONFIG_SERIAL_SAMSUNG_UARTS=4
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
CONFIG_SERIAL_TEGRA=y
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_SH_SCI=y
CONFIG_SERIAL_SH_SCI_NR_UARTS=11
CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_SERIAL_SH_SCI_EARLYCON is not set
# CONFIG_SERIAL_SH_SCI_DMA is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_SERIAL_MSM=y
CONFIG_SERIAL_MSM_CONSOLE=y
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_IFX6X60 is not set
CONFIG_SERIAL_XILINX_PS_UART=y
CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
# 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_SPRD is not set
CONFIG_SERIAL_MVEBU_UART=y
CONFIG_SERIAL_MVEBU_CONSOLE=y
CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_DEV_BUS is not set
CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y
CONFIG_HVC_XEN_FRONTEND=y
# CONFIG_HVC_DCC is not set
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=m
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_BCM2835=m
CONFIG_HW_RANDOM_IPROC_RNG200=m
CONFIG_HW_RANDOM_OMAP=m
# CONFIG_HW_RANDOM_VIRTIO is not set
CONFIG_HW_RANDOM_EXYNOS=m
CONFIG_HW_RANDOM_HISI=m
CONFIG_HW_RANDOM_MSM=m
CONFIG_HW_RANDOM_XGENE=m
CONFIG_HW_RANDOM_MESON=m
CONFIG_HW_RANDOM_CAVIUM=m
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# PCMCIA character devices
#
# CONFIG_RAW_DRIVER is not set
# CONFIG_HPET is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_ARB_GPIO_CHALLENGE is not set
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_GPMUX is not set
# CONFIG_I2C_MUX_PCA9541 is not set
CONFIG_I2C_MUX_PCA954x=y
# CONFIG_I2C_MUX_PINCTRL is not set
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_DEMUX_PINCTRL is not set
# CONFIG_I2C_MUX_MLXCPLD is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# 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_HIX5HD2 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_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
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_BCM2835=m
CONFIG_I2C_BCM_IPROC=y
# CONFIG_I2C_CADENCE is not set
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
CONFIG_I2C_EXYNOS5=y
# CONFIG_I2C_GPIO is not set
CONFIG_I2C_IMX=y
CONFIG_I2C_MESON=y
# CONFIG_I2C_MT65XX is not set
CONFIG_I2C_MV64XXX=y
# CONFIG_I2C_NOMADIK is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
CONFIG_I2C_PXA=y
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_PXA_SLAVE is not set
CONFIG_I2C_QUP=y
# CONFIG_I2C_RIIC is not set
CONFIG_I2C_RK3X=y
CONFIG_I2C_SH_MOBILE=y
# CONFIG_I2C_SIMTEC is not set
CONFIG_I2C_TEGRA=y
# CONFIG_I2C_TEGRA_BPMP is not set
# CONFIG_I2C_UNIPHIER is not set
CONFIG_I2C_UNIPHIER_F=y
# CONFIG_I2C_VERSATILE is not set
# CONFIG_I2C_THUNDERX is not set
# CONFIG_I2C_XILINX is not set
# CONFIG_I2C_XLP9XX is not set
CONFIG_I2C_RCAR=y
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C 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_CROS_EC_TUNNEL=y
# CONFIG_I2C_XGENE_SLIMPRO is not set
# CONFIG_I2C_STUB is not set
CONFIG_I2C_SLAVE=y
# CONFIG_I2C_SLAVE_EEPROM 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=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_ARMADA_3700 is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
CONFIG_SPI_BCM2835=m
CONFIG_SPI_BCM2835AUX=m
CONFIG_SPI_BCM_QSPI=y
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_FSL_SPI is not set
# CONFIG_SPI_FSL_DSPI is not set
CONFIG_SPI_MESON_SPIFC=m
# CONFIG_SPI_MT65XX is not set
# CONFIG_SPI_OC_TINY is not set
CONFIG_SPI_ORION=y
CONFIG_SPI_PL022=y
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_RSPI is not set
CONFIG_SPI_QUP=y
CONFIG_SPI_S3C64XX=y
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SH_MSIOF is not set
# CONFIG_SPI_SH_HSPI is not set
# CONFIG_SPI_SUN4I is not set
# CONFIG_SPI_SUN6I is not set
# CONFIG_SPI_TEGRA114 is not set
# CONFIG_SPI_TEGRA20_SFLASH is not set
# CONFIG_SPI_TEGRA20_SLINK is not set
# CONFIG_SPI_THUNDERX is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_XLP is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
CONFIG_SPMI=y
CONFIG_SPMI_MSM_PMIC_ARB=y
# CONFIG_HSI is not set
#
# PPS support
#
CONFIG_PPS=y
# 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_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PINCTRL=y
#
# Pin controllers
#
CONFIG_GENERIC_PINCTRL_GROUPS=y
CONFIG_PINMUX=y
CONFIG_GENERIC_PINMUX_FUNCTIONS=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
CONFIG_PINCTRL_MESON=y
CONFIG_PINCTRL_ROCKCHIP=y
CONFIG_PINCTRL_SINGLE=y
# CONFIG_PINCTRL_SX150X is not set
CONFIG_PINCTRL_MAX77620=y
CONFIG_PINCTRL_BCM2835=y
CONFIG_PINCTRL_IPROC_GPIO=y
CONFIG_PINCTRL_NS2_MUX=y
# CONFIG_PINCTRL_BERLIN_BG2 is not set
# CONFIG_PINCTRL_BERLIN_BG2CD is not set
# CONFIG_PINCTRL_BERLIN_BG2Q is not set
# CONFIG_PINCTRL_BERLIN_BG4CT is not set
# CONFIG_PINCTRL_BAYTRAIL is not set
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_BROXTON is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
CONFIG_PINCTRL_MSM=y
# CONFIG_PINCTRL_APQ8064 is not set
# CONFIG_PINCTRL_APQ8084 is not set
# CONFIG_PINCTRL_IPQ4019 is not set
# CONFIG_PINCTRL_IPQ8064 is not set
# CONFIG_PINCTRL_MSM8660 is not set
# CONFIG_PINCTRL_MSM8960 is not set
# CONFIG_PINCTRL_MDM9615 is not set
# CONFIG_PINCTRL_MSM8X74 is not set
CONFIG_PINCTRL_MSM8916=y
CONFIG_PINCTRL_MSM8994=y
CONFIG_PINCTRL_MSM8996=y
CONFIG_PINCTRL_QDF2XXX=y
CONFIG_PINCTRL_QCOM_SPMI_PMIC=y
# CONFIG_PINCTRL_QCOM_SSBI_PMIC is not set
CONFIG_PINCTRL_SAMSUNG=y
CONFIG_PINCTRL_EXYNOS=y
CONFIG_PINCTRL_SH_PFC=y
CONFIG_PINCTRL_PFC_R8A7795=y
CONFIG_PINCTRL_PFC_R8A7796=y
CONFIG_PINCTRL_SUNXI=y
# CONFIG_PINCTRL_SUN4I_A10 is not set
# CONFIG_PINCTRL_SUN5I is not set
# CONFIG_PINCTRL_SUN6I_A31 is not set
# CONFIG_PINCTRL_SUN6I_A31_R is not set
# CONFIG_PINCTRL_SUN7I_A20 is not set
# CONFIG_PINCTRL_SUN8I_A23 is not set
# CONFIG_PINCTRL_SUN8I_A33 is not set
# CONFIG_PINCTRL_SUN8I_A83T is not set
# CONFIG_PINCTRL_SUN8I_A23_R is not set
# CONFIG_PINCTRL_SUN8I_H3 is not set
# CONFIG_PINCTRL_SUN8I_H3_R is not set
# CONFIG_PINCTRL_SUN8I_V3S is not set
# CONFIG_PINCTRL_SUN9I_A80 is not set
# CONFIG_PINCTRL_SUN9I_A80_R is not set
CONFIG_PINCTRL_SUN50I_A64=y
CONFIG_PINCTRL_TEGRA=y
CONFIG_PINCTRL_TEGRA124=y
CONFIG_PINCTRL_TEGRA210=y
CONFIG_PINCTRL_TEGRA_XUSB=y
# CONFIG_PINCTRL_TI_IODELAY is not set
CONFIG_PINCTRL_UNIPHIER=y
# CONFIG_PINCTRL_UNIPHIER_LD4 is not set
# CONFIG_PINCTRL_UNIPHIER_PRO4 is not set
# CONFIG_PINCTRL_UNIPHIER_SLD8 is not set
# CONFIG_PINCTRL_UNIPHIER_PRO5 is not set
# CONFIG_PINCTRL_UNIPHIER_PXS2 is not set
# CONFIG_PINCTRL_UNIPHIER_LD6B is not set
CONFIG_PINCTRL_UNIPHIER_LD11=y
CONFIG_PINCTRL_UNIPHIER_LD20=y
CONFIG_PINCTRL_MTK=y
CONFIG_PINCTRL_MT8173=y
CONFIG_GPIOLIB=y
CONFIG_OF_GPIO=y
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
CONFIG_GPIO_GENERIC=y
#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
# CONFIG_GPIO_ALTERA is not set
# CONFIG_GPIO_AMDPT is not set
CONFIG_GPIO_DWAPB=y
# CONFIG_GPIO_EXAR is not set
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_MPC8XXX is not set
CONFIG_GPIO_PL061=y
CONFIG_GPIO_RCAR=y
# CONFIG_GPIO_SYSCON is not set
CONFIG_GPIO_TEGRA=y
CONFIG_GPIO_XGENE=y
CONFIG_GPIO_XGENE_SB=y
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_XLP is not set
# CONFIG_GPIO_ZYNQ is not set
# CONFIG_GPIO_ZX is not set
#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_ADNP is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
CONFIG_GPIO_PCA953X=y
CONFIG_GPIO_PCA953X_IRQ=y
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_SX150X is not set
# CONFIG_GPIO_TPIC2810 is not set
#
# MFD GPIO expanders
#
CONFIG_GPIO_MAX77620=y
#
# PCI GPIO expanders
#
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_RDC321X is not set
#
# SPI GPIO expanders
#
# CONFIG_GPIO_74X164 is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
#
# SPI or I2C GPIO expanders
#
# CONFIG_GPIO_MCP23S08 is not set
#
# USB GPIO expanders
#
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_GPIO is not set
# CONFIG_POWER_RESET_GPIO_RESTART is not set
# CONFIG_POWER_RESET_HISI is not set
CONFIG_POWER_RESET_MSM=y
# CONFIG_POWER_RESET_LTC2952 is not set
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_RESET_VEXPRESS=y
CONFIG_POWER_RESET_XGENE=y
CONFIG_POWER_RESET_SYSCON=y
# CONFIG_POWER_RESET_SYSCON_POWEROFF is not set
# CONFIG_POWER_RESET_ZX is not set
# CONFIG_SYSCON_REBOOT_MODE is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_GENERIC_ADC_BATTERY is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
CONFIG_BATTERY_BQ27XXX=y
CONFIG_BATTERY_BQ27XXX_I2C=y
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_DETECTOR_MAX14656 is not set
# CONFIG_CHARGER_QCOM_SMBB is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_CHARGER_RT9455 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_AD7314 is not set
# 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_ADT7310 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_ARM_SCPI=y
# 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_GPIO_FAN is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_IIO_HWMON 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_MAX1111 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_MAX31722 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_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 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=m
# 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_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_PWM_FAN is not set
# CONFIG_SENSORS_SHT15 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_SCH56XX_COMMON 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_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
CONFIG_SENSORS_INA2XX=m
# 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_VEXPRESS is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 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
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_OF=y
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y
CONFIG_CPU_THERMAL=y
# CONFIG_CLOCK_THERMAL is not set
CONFIG_THERMAL_EMULATION=y
CONFIG_HISI_THERMAL=y
# CONFIG_MAX77620_THERMAL is not set
# CONFIG_QORIQ_THERMAL is not set
# CONFIG_ROCKCHIP_THERMAL is not set
# CONFIG_RCAR_THERMAL is not set
# CONFIG_RCAR_GEN3_THERMAL is not set
# CONFIG_ARMADA_THERMAL is not set
#
# ACPI INT340X thermal drivers
#
CONFIG_MTK_THERMAL=m
#
# Samsung thermal drivers
#
CONFIG_EXYNOS_THERMAL=y
#
# NVIDIA Tegra thermal drivers
#
# CONFIG_TEGRA_SOCTHERM is not set
# CONFIG_QCOM_SPMI_TEMP_ALARM is not set
# CONFIG_GENERIC_ADC_THERMAL is not set
#
# Qualcomm thermal drivers
#
# CONFIG_ZX2967_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
# CONFIG_WATCHDOG_SYSFS is not set
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_GPIO_WATCHDOG is not set
# CONFIG_WDAT_WDT is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_ARM_SP805_WATCHDOG is not set
# CONFIG_ARM_SBSA_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
CONFIG_HAVE_S3C2410_WATCHDOG=y
CONFIG_S3C2410_WATCHDOG=y
# CONFIG_DW_WATCHDOG is not set
# CONFIG_SUNXI_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_MAX77620_WATCHDOG is not set
# CONFIG_IMX2_WDT is not set
# CONFIG_TEGRA_WATCHDOG is not set
# CONFIG_QCOM_WDT is not set
CONFIG_MESON_GXBB_WATCHDOG=m
CONFIG_MESON_WATCHDOG=m
# CONFIG_MEDIATEK_WATCHDOG is not set
CONFIG_RENESAS_WDT=y
# CONFIG_ZX2967_WATCHDOG is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_I6300ESB_WDT is not set
CONFIG_BCM2835_WDT=y
# CONFIG_MEN_A21_WDT is not set
# CONFIG_XEN_WDT 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
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_ACT8945A is not set
# CONFIG_MFD_SUN4I_GPADC is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_AS3722 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE 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_AXP20X_I2C is not set
CONFIG_MFD_CROS_EC=y
CONFIG_MFD_CROS_EC_I2C=y
# CONFIG_MFD_CROS_EC_SPI is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 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_EXYNOS_LPASS is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_HI6421_PMIC is not set
CONFIG_MFD_HI655X_PMIC=y
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_INTEL_SOC_PMIC 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_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
CONFIG_MFD_MAX77620=y
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_CPCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_QCOM_RPM is not set
CONFIG_MFD_SPMI_PMIC=y
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RTSX_USB is not set
# CONFIG_MFD_RC5T583 is not set
CONFIG_MFD_RK808=y
# CONFIG_MFD_RN5T618 is not set
CONFIG_MFD_SEC_CORE=y
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SUN6I_PRCM is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
CONFIG_MFD_VEXPRESS_SYSREG=y
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_ANATOP is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_HI655X=y
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
# CONFIG_REGULATOR_MAX1586 is not set
CONFIG_REGULATOR_MAX77620=y
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
CONFIG_REGULATOR_PWM=y
CONFIG_REGULATOR_QCOM_SMD_RPM=y
CONFIG_REGULATOR_QCOM_SPMI=y
CONFIG_REGULATOR_RK808=y
# CONFIG_REGULATOR_S2MPA01 is not set
CONFIG_REGULATOR_S2MPS11=y
# CONFIG_REGULATOR_S5M8767 is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_REGULATOR_VEXPRESS is not set
CONFIG_MEDIA_SUPPORT=m
#
# Multimedia core support
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_MEDIA_CEC_SUPPORT is not set
CONFIG_MEDIA_CONTROLLER=y
# CONFIG_MEDIA_CONTROLLER_DVB is not set
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_VIDEO_V4L2=m
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
# CONFIG_VIDEO_PCI_SKELETON is not set
CONFIG_VIDEOBUF2_CORE=m
CONFIG_VIDEOBUF2_MEMOPS=m
CONFIG_VIDEOBUF2_DMA_CONTIG=m
CONFIG_DVB_CORE=m
# CONFIG_DVB_NET is not set
# CONFIG_TTPCI_EEPROM is not set
CONFIG_DVB_MAX_ADAPTERS=16
# CONFIG_DVB_DYNAMIC_MINORS is not set
# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set
#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
# CONFIG_V4L_PLATFORM_DRIVERS is not set
CONFIG_V4L_MEM2MEM_DRIVERS=y
# CONFIG_VIDEO_MEDIATEK_VPU is not set
# CONFIG_VIDEO_MEM2MEM_DEINTERLACE is not set
# CONFIG_VIDEO_SAMSUNG_S5P_G2D is not set
# CONFIG_VIDEO_SAMSUNG_S5P_JPEG is not set
# CONFIG_VIDEO_SAMSUNG_S5P_MFC is not set
# CONFIG_VIDEO_SAMSUNG_EXYNOS_GSC is not set
# CONFIG_VIDEO_SH_VEU is not set
# CONFIG_VIDEO_RENESAS_FDP1 is not set
# CONFIG_VIDEO_RENESAS_JPU is not set
CONFIG_VIDEO_RENESAS_FCP=m
CONFIG_VIDEO_RENESAS_VSP1=m
# CONFIG_V4L_TEST_DRIVERS is not set
# CONFIG_DVB_PLATFORM_DRIVERS is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_SMS_SDIO_DRV is not set
# CONFIG_CYPRESS_FIRMWARE is not set
#
# Media ancillary drivers (tuners, sensors, i2c, spi, frontends)
#
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
CONFIG_MEDIA_ATTACH=y
#
# Audio decoders, processors and mixers
#
#
# RDS decoders
#
#
# Video decoders
#
#
# Video and audio decoders
#
#
# Video encoders
#
#
# Camera sensor devices
#
#
# Flash devices
#
#
# Video improvement chips
#
#
# Audio/Video compression chips
#
#
# Miscellaneous helper chips
#
#
# Sensors used on soc_camera driver
#
CONFIG_MEDIA_TUNER=m
CONFIG_MEDIA_TUNER_SIMPLE=m
CONFIG_MEDIA_TUNER_TDA8290=m
CONFIG_MEDIA_TUNER_TDA827X=m
CONFIG_MEDIA_TUNER_TDA18271=m
CONFIG_MEDIA_TUNER_TDA9887=m
CONFIG_MEDIA_TUNER_MT20XX=m
CONFIG_MEDIA_TUNER_XC2028=m
CONFIG_MEDIA_TUNER_XC5000=m
CONFIG_MEDIA_TUNER_XC4000=m
CONFIG_MEDIA_TUNER_MC44S803=m
#
# Multistandard (satellite) frontends
#
#
# Multistandard (cable + terrestrial) frontends
#
#
# DVB-S (satellite) frontends
#
#
# DVB-T (terrestrial) frontends
#
# CONFIG_DVB_AS102_FE is not set
# CONFIG_DVB_GP8PSK_FE is not set
#
# DVB-C (cable) frontends
#
#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
#
# ISDB-T (terrestrial) frontends
#
#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
#
# Digital terrestrial only tuners/PLL
#
#
# SEC control devices for DVB-S
#
#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
#
# Graphics support
#
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_TEGRA_HOST1X=m
CONFIG_TEGRA_HOST1X_FIREWALL=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
# CONFIG_DRM_DP_AUX_CHARDEV is not set
# CONFIG_DRM_DEBUG_MM_SELFTEST is not set
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_GEM_CMA_HELPER=y
CONFIG_DRM_KMS_CMA_HELPER=y
CONFIG_DRM_VM=y
#
# I2C encoder or helper chips
#
CONFIG_DRM_I2C_CH7006=m
CONFIG_DRM_I2C_SIL164=m
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_HDLCD is not set
# CONFIG_DRM_MALI_DISPLAY is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
#
# ACP (Audio CoProcessor) Configuration
#
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_PLATFORM_DRIVER=y
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_EXYNOS is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
CONFIG_DRM_RCAR_DU=m
CONFIG_DRM_RCAR_HDMI=y
CONFIG_DRM_RCAR_LVDS=y
CONFIG_DRM_RCAR_VSP=y
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
# CONFIG_DRM_VIRTIO_GPU is not set
CONFIG_DRM_MSM=m
# CONFIG_DRM_MSM_REGISTER_LOGGING is not set
CONFIG_DRM_MSM_HDMI_HDCP=y
CONFIG_DRM_MSM_DSI=y
CONFIG_DRM_MSM_DSI_PLL=y
CONFIG_DRM_MSM_DSI_28NM_PHY=y
CONFIG_DRM_MSM_DSI_20NM_PHY=y
CONFIG_DRM_MSM_DSI_28NM_8960_PHY=y
CONFIG_DRM_MSM_DSI_14NM_PHY=y
CONFIG_DRM_TEGRA=m
# CONFIG_DRM_TEGRA_DEBUG is not set
CONFIG_DRM_PANEL=y
#
# Display Panels
#
CONFIG_DRM_PANEL_SIMPLE=m
# CONFIG_DRM_PANEL_JDI_LT070ME05000 is not set
# CONFIG_DRM_PANEL_SAMSUNG_LD9040 is not set
# CONFIG_DRM_PANEL_LG_LG4573 is not set
# CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0 is not set
# CONFIG_DRM_PANEL_SHARP_LQ101R1SX01 is not set
# CONFIG_DRM_PANEL_SHARP_LS043T1LE01 is not set
CONFIG_DRM_BRIDGE=y
#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# CONFIG_DRM_DUMB_VGA_DAC is not set
# CONFIG_DRM_LVDS_ENCODER is not set
# CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW is not set
# CONFIG_DRM_NXP_PTN3460 is not set
# CONFIG_DRM_PARADE_PS8622 is not set
# CONFIG_DRM_SIL_SII8620 is not set
# CONFIG_DRM_SII902X is not set
# CONFIG_DRM_TOSHIBA_TC358767 is not set
# CONFIG_DRM_TI_TFP410 is not set
CONFIG_DRM_I2C_ADV7511=m
# CONFIG_DRM_I2C_ADV7511_AUDIO is not set
CONFIG_DRM_I2C_ADV7533=y
CONFIG_DRM_VC4=m
# CONFIG_DRM_ARCPGU is not set
# CONFIG_DRM_HISI_HIBMC is not set
CONFIG_DRM_HISI_KIRIN=m
CONFIG_HISI_KIRIN_DW_DSI=m
# CONFIG_DRM_MEDIATEK is not set
# CONFIG_DRM_ZTE is not set
# CONFIG_DRM_MXSFB is not set
CONFIG_DRM_MESON=m
# CONFIG_DRM_TINYDRM is not set
# CONFIG_DRM_LEGACY is not set
# CONFIG_DRM_LIB_RANDOM is not set
#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
CONFIG_FB_ARMCLCD=y
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_EFI 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_SH_MOBILE_LCDC is not set
# CONFIG_FB_S3C 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_XEN_FBDEV_FRONTEND=y
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SH_MOBILE_MERAM is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
# CONFIG_LCD_PLATFORM is not set
# CONFIG_LCD_S6E63M0 is not set
# CONFIG_LCD_LD9040 is not set
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=m
# CONFIG_BACKLIGHT_PWM is not set
# CONFIG_BACKLIGHT_PM8941_WLED is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_LP855X=m
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y
#
# 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=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_PCM_ELD=y
CONFIG_SND_PCM_IEC958=y
CONFIG_SND_DMAENGINE_PCM=y
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_HRTIMER is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALI5451 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_AZT3328 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_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 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_MAESTRO3 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_SONICVIBES is not set
# CONFIG_SND_TRIDENT 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_TEGRA is not set
CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
# CONFIG_SND_BCD2000 is not set
# CONFIG_SND_USB_POD is not set
# CONFIG_SND_USB_PODHD is not set
# CONFIG_SND_USB_TONEPORT is not set
# CONFIG_SND_USB_VARIAX is not set
CONFIG_SND_SOC=y
CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_ATMEL_SOC is not set
CONFIG_SND_BCM2835_SOC_I2S=m
# CONFIG_SND_DESIGNWARE_I2S is not set
#
# SoC Audio for Freescale CPUs
#
#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
# CONFIG_SND_SOC_FSL_SAI is not set
# CONFIG_SND_SOC_FSL_SSI is not set
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set
# CONFIG_SND_KIRKWOOD_SOC is not set
# CONFIG_SND_SOC_IMG is not set
# CONFIG_SND_SOC_MT2701 is not set
# CONFIG_SND_SOC_MT8173 is not set
# CONFIG_SND_SOC_QCOM is not set
# CONFIG_SND_SOC_ROCKCHIP is not set
CONFIG_SND_SOC_SAMSUNG=y
# CONFIG_SND_SAMSUNG_PCM is not set
# CONFIG_SND_SAMSUNG_SPDIF is not set
# CONFIG_SND_SAMSUNG_I2S is not set
# CONFIG_SND_SOC_SAMSUNG_SMDK_WM8994 is not set
# CONFIG_SND_SOC_SAMSUNG_SMDK_SPDIF is not set
# CONFIG_SND_SOC_SMDK_WM8994_PCM is not set
# CONFIG_SND_SOC_SNOW is not set
# CONFIG_SND_SOC_ARNDALE_RT5631_ALC5631 is not set
#
# SoC Audio support for SuperH
#
# CONFIG_SND_SOC_SH4_FSI is not set
CONFIG_SND_SOC_RCAR=y
#
# Allwinner SoC Audio support
#
# CONFIG_SND_SUN4I_CODEC is not set
# CONFIG_SND_SUN8I_CODEC_ANALOG is not set
# CONFIG_SND_SUN4I_I2S is not set
# CONFIG_SND_SUN4I_SPDIF is not set
# CONFIG_SND_SOC_TEGRA is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set
# CONFIG_ZX_SPDIF is not set
# CONFIG_ZX_I2S is not set
# CONFIG_ZX_TDM is not set
CONFIG_SND_SOC_I2C_AND_SPI=y
#
# CODEC drivers
#
# CONFIG_SND_SOC_AC97_CODEC is not set
# CONFIG_SND_SOC_ADAU1701 is not set
# CONFIG_SND_SOC_ADAU7002 is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4554 is not set
CONFIG_SND_SOC_AK4613=y
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_BT_SCO is not set
# CONFIG_SND_SOC_CS35L32 is not set
# CONFIG_SND_SOC_CS35L33 is not set
# CONFIG_SND_SOC_CS35L34 is not set
# CONFIG_SND_SOC_CS35L35 is not set
# CONFIG_SND_SOC_CS42L42 is not set
# CONFIG_SND_SOC_CS42L51_I2C is not set
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
# CONFIG_SND_SOC_CS42L73 is not set
# CONFIG_SND_SOC_CS4265 is not set
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
# CONFIG_SND_SOC_CS4271_SPI is not set
# CONFIG_SND_SOC_CS42XX8_I2C is not set
# CONFIG_SND_SOC_CS4349 is not set
# CONFIG_SND_SOC_CS53L30 is not set
# CONFIG_SND_SOC_DIO2125 is not set
CONFIG_SND_SOC_HDMI_CODEC=m
# CONFIG_SND_SOC_ES7134 is not set
# CONFIG_SND_SOC_ES8328_I2C is not set
# CONFIG_SND_SOC_ES8328_SPI is not set
# CONFIG_SND_SOC_GTM601 is not set
# CONFIG_SND_SOC_INNO_RK3036 is not set
# CONFIG_SND_SOC_MAX98504 is not set
# CONFIG_SND_SOC_MAX9860 is not set
# CONFIG_SND_SOC_MSM8916_WCD_ANALOG is not set
# CONFIG_SND_SOC_MSM8916_WCD_DIGITAL is not set
# CONFIG_SND_SOC_PCM1681 is not set
# CONFIG_SND_SOC_PCM179X_I2C is not set
# CONFIG_SND_SOC_PCM179X_SPI is not set
# CONFIG_SND_SOC_PCM3168A_I2C is not set
# CONFIG_SND_SOC_PCM3168A_SPI is not set
# CONFIG_SND_SOC_PCM512x_I2C is not set
# CONFIG_SND_SOC_PCM512x_SPI is not set
# CONFIG_SND_SOC_RT5616 is not set
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5677_SPI is not set
# CONFIG_SND_SOC_SGTL5000 is not set
# CONFIG_SND_SOC_SIRF_AUDIO_CODEC is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SSM2602_SPI is not set
# CONFIG_SND_SOC_SSM2602_I2C is not set
# CONFIG_SND_SOC_SSM4567 is not set
# CONFIG_SND_SOC_STA32X is not set
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TAS5720 is not set
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
# CONFIG_SND_SOC_TLV320AIC23_SPI is not set
# CONFIG_SND_SOC_TLV320AIC31XX is not set
# CONFIG_SND_SOC_TLV320AIC3X is not set
# CONFIG_SND_SOC_TS3A227E is not set
# CONFIG_SND_SOC_WM8510 is not set
# CONFIG_SND_SOC_WM8523 is not set
# CONFIG_SND_SOC_WM8580 is not set
# CONFIG_SND_SOC_WM8711 is not set
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
# CONFIG_SND_SOC_WM8750 is not set
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
# CONFIG_SND_SOC_WM8776 is not set
# CONFIG_SND_SOC_WM8804_I2C is not set
# CONFIG_SND_SOC_WM8804_SPI is not set
# CONFIG_SND_SOC_WM8903 is not set
# CONFIG_SND_SOC_WM8960 is not set
# CONFIG_SND_SOC_WM8962 is not set
# CONFIG_SND_SOC_WM8974 is not set
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_WM8985 is not set
# CONFIG_SND_SOC_NAU8540 is not set
# CONFIG_SND_SOC_NAU8810 is not set
# CONFIG_SND_SOC_TPA6130A2 is not set
CONFIG_SND_SIMPLE_CARD_UTILS=y
CONFIG_SND_SIMPLE_CARD=y
# CONFIG_SND_SIMPLE_SCU_CARD is not set
# CONFIG_SOUND_PRIME 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=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_ASUS is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
# CONFIG_HID_BETOP_FF is not set
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CP2112 is not set
CONFIG_HID_CYPRESS=y
# 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=y
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_GT683R 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_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LED is not set
# CONFIG_HID_LENOVO is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_HIDPP is not set
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MAYFLASH is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# 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_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK 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_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE 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_ANNOUNCE_NEW_DEVICES is not set
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_OTG_FSM is not set
# CONFIG_USB_LEDS_TRIGGER_USBPORT 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=y
CONFIG_USB_XHCI_PCI=y
CONFIG_USB_XHCI_PLATFORM=y
# CONFIG_USB_XHCI_MTK is not set
# CONFIG_USB_XHCI_MVEBU is not set
CONFIG_USB_XHCI_RCAR=y
CONFIG_USB_XHCI_TEGRA=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
CONFIG_USB_EHCI_MSM=y
# CONFIG_USB_EHCI_TEGRA is not set
CONFIG_USB_EHCI_EXYNOS=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
CONFIG_USB_OHCI_EXYNOS=y
CONFIG_USB_OHCI_HCD_PLATFORM=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_RENESAS_USBHS_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set
CONFIG_USB_RENESAS_USBHS=m
#
# 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=y
# 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_MTU3 is not set
# CONFIG_USB_MUSB_HDRC is not set
CONFIG_USB_DWC3=y
# CONFIG_USB_DWC3_HOST is not set
# CONFIG_USB_DWC3_GADGET is not set
CONFIG_USB_DWC3_DUAL_ROLE=y
#
# Platform Glue Driver Support
#
CONFIG_USB_DWC3_EXYNOS=y
CONFIG_USB_DWC3_PCI=y
CONFIG_USB_DWC3_OF_SIMPLE=y
CONFIG_USB_DWC2=y
# CONFIG_USB_DWC2_HOST is not set
#
# Gadget/Dual-role mode requires USB Gadget support to be enabled
#
# CONFIG_USB_DWC2_PERIPHERAL is not set
CONFIG_USB_DWC2_DUAL_ROLE=y
# CONFIG_USB_DWC2_PCI is not set
# CONFIG_USB_DWC2_DEBUG is not set
# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set
CONFIG_USB_CHIPIDEA=y
CONFIG_USB_CHIPIDEA_OF=y
CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_ISP1760=y
CONFIG_USB_ISP1760_HCD=y
CONFIG_USB_ISP1761_UDC=y
# CONFIG_USB_ISP1760_HOST_ROLE is not set
# CONFIG_USB_ISP1760_GADGET_ROLE is not set
CONFIG_USB_ISP1760_DUAL_ROLE=y
#
# USB port drivers
#
# 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_SISUSBVGA 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=y
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
# CONFIG_UCSI is not set
#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
CONFIG_USB_MSM_OTG=y
# CONFIG_USB_QCOM_8X16_PHY is not set
CONFIG_USB_ULPI=y
CONFIG_USB_ULPI_VIEWPORT=y
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
#
# USB Peripheral Controller
#
# CONFIG_USB_FOTG210_UDC is not set
# CONFIG_USB_GR_UDC is not set
# CONFIG_USB_R8A66597 is not set
CONFIG_USB_RENESAS_USBHS_UDC=m
# CONFIG_USB_RENESAS_USB3 is not set
# CONFIG_USB_PXA27X is not set
# CONFIG_USB_MV_UDC is not set
# CONFIG_USB_MV_U3D is not set
# CONFIG_USB_M66592 is not set
# CONFIG_USB_BDC_UDC is not set
# CONFIG_USB_AMD5536UDC is not set
# CONFIG_USB_NET2272 is not set
# CONFIG_USB_NET2280 is not set
# CONFIG_USB_GOKU is not set
# CONFIG_USB_EG20T is not set
# CONFIG_USB_GADGET_XILINX is not set
# CONFIG_USB_DUMMY_HCD is not set
# CONFIG_USB_CONFIGFS is not set
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_G_NCM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FUNCTIONFS is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_ACM_MS is not set
# CONFIG_USB_G_MULTI is not set
# CONFIG_USB_G_HID is not set
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_G_WEBCAM is not set
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_UWB is not set
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
CONFIG_PWRSEQ_EMMC=y
CONFIG_PWRSEQ_SIMPLE=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=32
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_ARMMMCI=y
CONFIG_MMC_QCOM_DML=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
# CONFIG_MMC_SDHCI_PCI is not set
CONFIG_MMC_SDHCI_ACPI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_OF_ARASAN=y
# CONFIG_MMC_SDHCI_OF_AT91 is not set
CONFIG_MMC_SDHCI_OF_ESDHC=y
CONFIG_MMC_SDHCI_CADENCE=y
CONFIG_MMC_SDHCI_TEGRA=y
# CONFIG_MMC_SDHCI_PXAV3 is not set
# CONFIG_MMC_SDHCI_F_SDH30 is not set
CONFIG_MMC_SDHCI_IPROC=y
CONFIG_MMC_MESON_GX=y
CONFIG_MMC_SDHCI_MSM=y
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MMC_SPI=y
CONFIG_MMC_TMIO_CORE=y
CONFIG_MMC_SDHI=y
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
CONFIG_MMC_DW=y
CONFIG_MMC_DW_PLTFM=y
CONFIG_MMC_DW_EXYNOS=y
CONFIG_MMC_DW_K3=y
# CONFIG_MMC_DW_PCI is not set
CONFIG_MMC_DW_ROCKCHIP=y
# CONFIG_MMC_DW_ZX is not set
# CONFIG_MMC_SH_MMCIF is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_SUNXI=y
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set
#
# LED drivers
#
# CONFIG_LEDS_BCM6328 is not set
# CONFIG_LEDS_BCM6358 is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
CONFIG_LEDS_PWM=y
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_IS31FL319X is not set
# CONFIG_LEDS_IS31FL32XX is not set
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
CONFIG_LEDS_SYSCON=y
# CONFIG_LEDS_USER is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_DISK is not set
# CONFIG_LEDS_TRIGGER_MTD is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
CONFIG_LEDS_TRIGGER_CPU=y
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_SUPPORT=y
# CONFIG_EDAC is not set
CONFIG_RTC_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
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
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_MAX77686=y
CONFIG_RTC_DRV_RK808=m
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 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_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
CONFIG_RTC_DRV_S5M=y
#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RX6110 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y
#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=y
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# Platform RTC drivers
#
# 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_EFI=y
# 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 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# 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_HAVE_S3C_RTC=y
CONFIG_RTC_DRV_S3C=y
# CONFIG_RTC_DRV_PL030 is not set
CONFIG_RTC_DRV_PL031=y
CONFIG_RTC_DRV_SUN6I=y
# CONFIG_RTC_DRV_MV is not set
# CONFIG_RTC_DRV_ARMADA38X is not set
# CONFIG_RTC_DRV_PM8XXX is not set
CONFIG_RTC_DRV_TEGRA=y
# CONFIG_RTC_DRV_SNVS is not set
CONFIG_RTC_DRV_XGENE=y
# CONFIG_RTC_DRV_R7301 is not set
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=y
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
CONFIG_DMA_OF=y
# CONFIG_AMBA_PL08X is not set
CONFIG_DMA_BCM2835=m
# CONFIG_DMA_SUN6I is not set
# CONFIG_FSL_EDMA is not set
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_K3_DMA is not set
# CONFIG_MV_XOR is not set
CONFIG_MV_XOR_V2=y
CONFIG_PL330_DMA=y
CONFIG_TEGRA20_APB_DMA=y
# CONFIG_TEGRA210_ADMA is not set
# CONFIG_XGENE_DMA is not set
# CONFIG_XILINX_DMA is not set
# CONFIG_XILINX_ZYNQMP_DMA is not set
# CONFIG_ZX_DMA is not set
CONFIG_QCOM_BAM_DMA=y
CONFIG_QCOM_HIDMA_MGMT=y
CONFIG_QCOM_HIDMA=y
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
CONFIG_RENESAS_DMA=y
CONFIG_SH_DMAE_BASE=y
# CONFIG_SH_DMAE is not set
CONFIG_RCAR_DMAC=y
# CONFIG_RENESAS_USB_DMAC is not set
# CONFIG_SUDMAC is not set
#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y
#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
CONFIG_VFIO_IOMMU_TYPE1=y
CONFIG_VFIO_VIRQFD=y
CONFIG_VFIO=y
# CONFIG_VFIO_NOIOMMU is not set
CONFIG_VFIO_PCI=y
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
# CONFIG_VFIO_PLATFORM is not set
# CONFIG_VFIO_MDEV is not set
CONFIG_IRQ_BYPASS_MANAGER=y
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=y
#
# Virtio drivers
#
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
CONFIG_VIRTIO_BALLOON=y
# CONFIG_VIRTIO_INPUT is not set
CONFIG_VIRTIO_MMIO=y
# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set
#
# Microsoft Hyper-V guest support
#
#
# Xen driver support
#
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_XEN_DEV_EVTCHN=y
CONFIG_XEN_BACKEND=y
CONFIG_XENFS=y
CONFIG_XEN_COMPAT_XENFS=y
CONFIG_XEN_SYS_HYPERVISOR=y
CONFIG_XEN_XENBUS_FRONTEND=y
CONFIG_XEN_GNTDEV=y
CONFIG_XEN_GRANT_DEV_ALLOC=y
CONFIG_SWIOTLB_XEN=y
CONFIG_XEN_PRIVCMD=y
CONFIG_XEN_EFI=y
CONFIG_XEN_AUTO_XLATE=y
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
CONFIG_CHROME_PLATFORMS=y
# CONFIG_CROS_EC_CHARDEV is not set
CONFIG_CROS_EC_PROTO=y
# CONFIG_CROS_KBD_LED_BACKLIGHT is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
#
# Common Clock Framework
#
CONFIG_COMMON_CLK_VERSATILE=y
CONFIG_CLK_SP810=y
CONFIG_CLK_VEXPRESS_OSC=y
# CONFIG_COMMON_CLK_MAX77686 is not set
CONFIG_COMMON_CLK_RK808=y
CONFIG_COMMON_CLK_SCPI=y
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI514 is not set
# CONFIG_COMMON_CLK_SI570 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set
CONFIG_COMMON_CLK_CS2000_CP=y
CONFIG_COMMON_CLK_S2MPS11=y
CONFIG_CLK_QORIQ=y
CONFIG_COMMON_CLK_XGENE=y
# CONFIG_COMMON_CLK_NXP is not set
CONFIG_COMMON_CLK_PWM=y
# CONFIG_COMMON_CLK_PXA is not set
# CONFIG_COMMON_CLK_PIC32 is not set
# CONFIG_COMMON_CLK_VC5 is not set
CONFIG_COMMON_CLK_IPROC=y
CONFIG_CLK_BCM_NS2=y
CONFIG_COMMON_CLK_HI3516CV300=y
CONFIG_COMMON_CLK_HI3519=y
CONFIG_COMMON_CLK_HI3660=y
CONFIG_COMMON_CLK_HI3798CV200=y
CONFIG_COMMON_CLK_HI6220=y
CONFIG_RESET_HISI=y
CONFIG_STUB_CLK_HI6220=y
CONFIG_COMMON_CLK_MEDIATEK=y
CONFIG_COMMON_CLK_MT8173=y
CONFIG_COMMON_CLK_AMLOGIC=y
CONFIG_COMMON_CLK_GXBB=y
CONFIG_ARMADA_37XX_CLK=y
CONFIG_ARMADA_AP806_SYSCON=y
CONFIG_ARMADA_CP110_SYSCON=y
CONFIG_QCOM_GDSC=y
CONFIG_COMMON_CLK_QCOM=y
# CONFIG_QCOM_CLK_SMD_RPM is not set
# CONFIG_APQ_GCC_8084 is not set
# CONFIG_APQ_MMCC_8084 is not set
# CONFIG_IPQ_GCC_4019 is not set
# CONFIG_IPQ_GCC_806X is not set
# CONFIG_IPQ_LCC_806X is not set
# CONFIG_MSM_GCC_8660 is not set
CONFIG_MSM_GCC_8916=y
# CONFIG_MSM_GCC_8960 is not set
# CONFIG_MSM_LCC_8960 is not set
# CONFIG_MDM_GCC_9615 is not set
# CONFIG_MDM_LCC_9615 is not set
# CONFIG_MSM_MMCC_8960 is not set
# CONFIG_MSM_GCC_8974 is not set
# CONFIG_MSM_MMCC_8974 is not set
CONFIG_MSM_GCC_8994=y
CONFIG_MSM_GCC_8996=y
CONFIG_MSM_MMCC_8996=y
CONFIG_CLK_RENESAS_CPG_MSSR=y
CONFIG_COMMON_CLK_SAMSUNG=y
CONFIG_EXYNOS_ARM64_COMMON_CLK=y
CONFIG_EXYNOS_AUDSS_CLK_CON=y
CONFIG_SUNXI_CCU=y
CONFIG_SUNXI_CCU_DIV=y
CONFIG_SUNXI_CCU_FRAC=y
CONFIG_SUNXI_CCU_GATE=y
CONFIG_SUNXI_CCU_MUX=y
CONFIG_SUNXI_CCU_PHASE=y
CONFIG_SUNXI_CCU_NK=y
CONFIG_SUNXI_CCU_NKM=y
CONFIG_SUNXI_CCU_NKMP=y
CONFIG_SUNXI_CCU_NM=y
CONFIG_SUNXI_CCU_MP=y
CONFIG_SUN50I_A64_CCU=y
CONFIG_SUN8I_H3_CCU=y
CONFIG_CLK_TEGRA_BPMP=y
CONFIG_CLK_UNIPHIER=y
CONFIG_HWSPINLOCK=y
#
# Hardware Spinlock drivers
#
CONFIG_HWSPINLOCK_QCOM=y
#
# Clock Source drivers
#
CONFIG_CLKSRC_OF=y
CONFIG_CLKSRC_ACPI=y
CONFIG_CLKSRC_PROBE=y
CONFIG_CLKSRC_MMIO=y
CONFIG_ROCKCHIP_TIMER=y
CONFIG_ARM_ARCH_TIMER=y
CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND=y
CONFIG_FSL_ERRATUM_A008585=y
CONFIG_HISILICON_ERRATUM_161010101=y
CONFIG_ARM_TIMER_SP804=y
# CONFIG_ATMEL_PIT is not set
CONFIG_MTK_TIMER=y
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
CONFIG_CLKSRC_VERSATILE=y
CONFIG_MAILBOX=y
CONFIG_ARM_MHU=y
CONFIG_PLATFORM_MHU=y
# CONFIG_PL320_MBOX is not set
# CONFIG_ROCKCHIP_MBOX is not set
# CONFIG_PCC is not set
# CONFIG_ALTERA_MBOX is not set
CONFIG_BCM2835_MBOX=y
CONFIG_HI6220_MBOX=y
# CONFIG_MAILBOX_TEST is not set
CONFIG_TEGRA_HSP_MBOX=y
# CONFIG_XGENE_SLIMPRO_MBOX is not set
CONFIG_BCM_PDC_MBOX=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IO_PGTABLE=y
CONFIG_IOMMU_IO_PGTABLE_LPAE=y
# CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST is not set
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
CONFIG_IOMMU_IOVA=y
CONFIG_OF_IOMMU=y
CONFIG_IOMMU_DMA=y
# CONFIG_EXYNOS_IOMMU is not set
CONFIG_ARM_SMMU=y
CONFIG_ARM_SMMU_V3=y
# CONFIG_MTK_IOMMU is not set
#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
#
# Rpmsg drivers
#
#
# SOC (System On Chip) specific Drivers
#
#
# Broadcom SoC drivers
#
CONFIG_RASPBERRYPI_POWER=y
CONFIG_FSL_GUTS=y
CONFIG_MTK_INFRACFG=y
# CONFIG_MTK_PMIC_WRAP is not set
CONFIG_MTK_SCPSYS=y
# CONFIG_QCOM_GSBI is not set
CONFIG_QCOM_SMEM=y
CONFIG_QCOM_SMD=y
CONFIG_QCOM_SMD_RPM=y
# CONFIG_QCOM_SMP2P is not set
# CONFIG_QCOM_SMSM is not set
# CONFIG_QCOM_WCNSS_CTRL is not set
CONFIG_ROCKCHIP_GRF=y
CONFIG_ROCKCHIP_PM_DOMAINS=y
CONFIG_SOC_SAMSUNG=y
CONFIG_SUNXI_SRAM=y
CONFIG_ARCH_TEGRA_132_SOC=y
CONFIG_ARCH_TEGRA_210_SOC=y
CONFIG_ARCH_TEGRA_186_SOC=y
# CONFIG_SOC_TI is not set
# CONFIG_SOC_ZTE is not set
# CONFIG_PM_DEVFREQ is not set
CONFIG_EXTCON=y
#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
# CONFIG_EXTCON_GPIO is not set
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_QCOM_SPMI_MISC is not set
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
CONFIG_EXTCON_USB_GPIO=y
# CONFIG_MEMORY is not set
CONFIG_IIO=y
# CONFIG_IIO_BUFFER is not set
# CONFIG_IIO_CONFIGFS is not set
# CONFIG_IIO_TRIGGER is not set
# CONFIG_IIO_SW_DEVICE is not set
# CONFIG_IIO_SW_TRIGGER is not set
#
# Accelerometers
#
# CONFIG_ADXL345_I2C is not set
# CONFIG_ADXL345_SPI is not set
# CONFIG_BMA180 is not set
# CONFIG_BMA220 is not set
# CONFIG_BMC150_ACCEL is not set
# CONFIG_DA280 is not set
# CONFIG_DA311 is not set
# CONFIG_DMARD06 is not set
# CONFIG_DMARD09 is not set
# CONFIG_DMARD10 is not set
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_KXSD9 is not set
# CONFIG_KXCJK1013 is not set
# CONFIG_MC3230 is not set
# CONFIG_MMA7455_I2C is not set
# CONFIG_MMA7455_SPI is not set
# CONFIG_MMA7660 is not set
# CONFIG_MMA8452 is not set
# CONFIG_MMA9551 is not set
# CONFIG_MMA9553 is not set
# CONFIG_MXC4005 is not set
# CONFIG_MXC6255 is not set
# CONFIG_SCA3000 is not set
# CONFIG_STK8312 is not set
# CONFIG_STK8BA50 is not set
#
# Analog to digital converters
#
# CONFIG_AD7266 is not set
# CONFIG_AD7291 is not set
# CONFIG_AD7298 is not set
# CONFIG_AD7476 is not set
# CONFIG_AD7766 is not set
# CONFIG_AD7791 is not set
# CONFIG_AD7793 is not set
# CONFIG_AD7887 is not set
# CONFIG_AD7923 is not set
# CONFIG_AD799X is not set
# CONFIG_BCM_IPROC_ADC is not set
# CONFIG_BERLIN2_ADC is not set
# CONFIG_CC10001_ADC is not set
# CONFIG_ENVELOPE_DETECTOR is not set
CONFIG_EXYNOS_ADC=y
# CONFIG_HI8435 is not set
# CONFIG_HX711 is not set
# CONFIG_INA2XX_ADC is not set
# CONFIG_LTC2485 is not set
# CONFIG_MAX1027 is not set
# CONFIG_MAX11100 is not set
# CONFIG_MAX1363 is not set
# CONFIG_MCP320X is not set
# CONFIG_MCP3422 is not set
# CONFIG_MEDIATEK_MT6577_AUXADC is not set
CONFIG_MESON_SARADC=y
# CONFIG_NAU7802 is not set
# CONFIG_QCOM_SPMI_IADC is not set
# CONFIG_QCOM_SPMI_VADC is not set
# CONFIG_ROCKCHIP_SARADC is not set
# CONFIG_TI_ADC081C is not set
# CONFIG_TI_ADC0832 is not set
# CONFIG_TI_ADC12138 is not set
# CONFIG_TI_ADC128S052 is not set
# CONFIG_TI_ADC161S626 is not set
# CONFIG_TI_ADS1015 is not set
# CONFIG_TI_ADS7950 is not set
# CONFIG_TI_ADS8688 is not set
# CONFIG_TI_TLC4541 is not set
# CONFIG_VF610_ADC is not set
#
# Amplifiers
#
# CONFIG_AD8366 is not set
#
# Chemical Sensors
#
# CONFIG_ATLAS_PH_SENSOR is not set
# CONFIG_IAQCORE is not set
# CONFIG_VZ89X is not set
# CONFIG_IIO_CROS_EC_SENSORS_CORE is not set
#
# Hid Sensor IIO Common
#
#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORHUB is not set
#
# Counters
#
#
# Digital to analog converters
#
# CONFIG_AD5064 is not set
# CONFIG_AD5360 is not set
# CONFIG_AD5380 is not set
# CONFIG_AD5421 is not set
# CONFIG_AD5446 is not set
# CONFIG_AD5449 is not set
# CONFIG_AD5592R is not set
# CONFIG_AD5593R is not set
# CONFIG_AD5504 is not set
# CONFIG_AD5624R_SPI is not set
# CONFIG_AD5686 is not set
# CONFIG_AD5755 is not set
# CONFIG_AD5761 is not set
# CONFIG_AD5764 is not set
# CONFIG_AD5791 is not set
# CONFIG_AD7303 is not set
# CONFIG_AD8801 is not set
# CONFIG_DPOT_DAC is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
# CONFIG_MAX5821 is not set
# CONFIG_MCP4725 is not set
# CONFIG_MCP4922 is not set
# CONFIG_VF610_DAC is not set
#
# IIO dummy driver
#
#
# Frequency Synthesizers DDS/PLL
#
#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set
#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# CONFIG_ADF4350 is not set
#
# Digital gyroscope sensors
#
# CONFIG_ADIS16080 is not set
# CONFIG_ADIS16130 is not set
# CONFIG_ADIS16136 is not set
# CONFIG_ADIS16260 is not set
# CONFIG_ADXRS450 is not set
# CONFIG_BMG160 is not set
# CONFIG_MPU3050_I2C is not set
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set
#
# Health Sensors
#
#
# Heart Rate Monitors
#
# CONFIG_AFE4403 is not set
# CONFIG_AFE4404 is not set
# CONFIG_MAX30100 is not set
# CONFIG_MAX30102 is not set
#
# Humidity sensors
#
# CONFIG_AM2315 is not set
# CONFIG_DHT11 is not set
# CONFIG_HDC100X is not set
# CONFIG_HTS221 is not set
# CONFIG_HTU21 is not set
# CONFIG_SI7005 is not set
# CONFIG_SI7020 is not set
#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16480 is not set
# CONFIG_BMI160_I2C is not set
# CONFIG_BMI160_SPI is not set
# CONFIG_KMX61 is not set
# CONFIG_INV_MPU6050_I2C is not set
# CONFIG_INV_MPU6050_SPI is not set
# CONFIG_IIO_ST_LSM6DSX is not set
#
# Light sensors
#
# CONFIG_ACPI_ALS is not set
# CONFIG_ADJD_S311 is not set
# CONFIG_AL3320A is not set
# CONFIG_APDS9300 is not set
# CONFIG_APDS9960 is not set
# CONFIG_BH1750 is not set
# CONFIG_BH1780 is not set
# CONFIG_CM32181 is not set
# CONFIG_CM3232 is not set
# CONFIG_CM3323 is not set
# CONFIG_CM3605 is not set
# CONFIG_CM36651 is not set
# CONFIG_GP2AP020A00F is not set
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_ISL29125 is not set
# CONFIG_JSA1212 is not set
# CONFIG_RPR0521 is not set
# CONFIG_LTR501 is not set
# CONFIG_MAX44000 is not set
# CONFIG_OPT3001 is not set
# CONFIG_PA12203001 is not set
# CONFIG_SI1145 is not set
# CONFIG_STK3310 is not set
# CONFIG_TCS3414 is not set
# CONFIG_TCS3472 is not set
# CONFIG_SENSORS_TSL2563 is not set
# CONFIG_TSL2583 is not set
# CONFIG_TSL4531 is not set
# CONFIG_US5182D is not set
# CONFIG_VCNL4000 is not set
# CONFIG_VEML6070 is not set
#
# Magnetometer sensors
#
# CONFIG_AK8974 is not set
# CONFIG_AK8975 is not set
# CONFIG_AK09911 is not set
# CONFIG_BMC150_MAGN_I2C is not set
# CONFIG_BMC150_MAGN_SPI is not set
# CONFIG_MAG3110 is not set
# CONFIG_MMC35240 is not set
# CONFIG_IIO_ST_MAGN_3AXIS is not set
# CONFIG_SENSORS_HMC5843_I2C is not set
# CONFIG_SENSORS_HMC5843_SPI is not set
#
# Multiplexers
#
# CONFIG_IIO_MUX is not set
#
# Inclinometer sensors
#
#
# Digital potentiometers
#
# CONFIG_DS1803 is not set
# CONFIG_MAX5481 is not set
# CONFIG_MAX5487 is not set
# CONFIG_MCP4131 is not set
# CONFIG_MCP4531 is not set
# CONFIG_TPL0102 is not set
#
# Digital potentiostats
#
# CONFIG_LMP91000 is not set
#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
# CONFIG_BMP280 is not set
# CONFIG_HP03 is not set
# CONFIG_MPL115_I2C is not set
# CONFIG_MPL115_SPI is not set
# CONFIG_MPL3115 is not set
# CONFIG_MS5611 is not set
# CONFIG_MS5637 is not set
# CONFIG_IIO_ST_PRESS is not set
# CONFIG_T5403 is not set
# CONFIG_HP206C is not set
# CONFIG_ZPA2326 is not set
#
# Lightning sensors
#
# CONFIG_AS3935 is not set
#
# Proximity and distance sensors
#
# CONFIG_LIDAR_LITE_V2 is not set
# CONFIG_SRF04 is not set
# CONFIG_SX9500 is not set
# CONFIG_SRF08 is not set
#
# Temperature sensors
#
# CONFIG_MAXIM_THERMOCOUPLE is not set
# CONFIG_MLX90614 is not set
# CONFIG_TMP006 is not set
# CONFIG_TMP007 is not set
# CONFIG_TSYS01 is not set
# CONFIG_TSYS02D is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
CONFIG_PWM_BCM_IPROC=y
CONFIG_PWM_BCM2835=m
# CONFIG_PWM_BERLIN is not set
# CONFIG_PWM_CROS_EC is not set
# CONFIG_PWM_FSL_FTM is not set
# CONFIG_PWM_HIBVT is not set
CONFIG_PWM_MESON=m
# CONFIG_PWM_MTK_DISP is not set
# CONFIG_PWM_PCA9685 is not set
# CONFIG_PWM_RCAR is not set
# CONFIG_PWM_RENESAS_TPU is not set
CONFIG_PWM_ROCKCHIP=y
CONFIG_PWM_SAMSUNG=y
# CONFIG_PWM_SUN4I is not set
CONFIG_PWM_TEGRA=m
CONFIG_IRQCHIP=y
CONFIG_ARM_GIC=y
CONFIG_ARM_GIC_MAX_NR=1
CONFIG_ARM_GIC_V2M=y
CONFIG_ARM_GIC_V3=y
CONFIG_ARM_GIC_V3_ITS=y
CONFIG_ALPINE_MSI=y
CONFIG_DW_APB_ICTL=y
CONFIG_HISILICON_IRQ_MBIGEN=y
CONFIG_RENESAS_IRQC=y
CONFIG_MVEBU_ODMI=y
CONFIG_MVEBU_PIC=y
CONFIG_LS_SCFG_MSI=y
CONFIG_PARTITION_PERCPU=y
# CONFIG_QCOM_IRQ_COMBINER is not set
# CONFIG_IPACK_BUS is not set
CONFIG_ARCH_HAS_RESET_CONTROLLER=y
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_ATH79 is not set
CONFIG_RESET_BERLIN=y
# CONFIG_RESET_LPC18XX is not set
CONFIG_RESET_MESON=y
# CONFIG_RESET_PISTACHIO is not set
# CONFIG_RESET_SOCFPGA is not set
# CONFIG_RESET_STM32 is not set
CONFIG_RESET_SUNXI=y
# CONFIG_TI_SYSCON_RESET is not set
CONFIG_RESET_UNIPHIER=y
# CONFIG_RESET_ZX2967 is not set
# CONFIG_RESET_ZYNQ is not set
CONFIG_COMMON_RESET_HI3660=y
CONFIG_COMMON_RESET_HI6220=y
CONFIG_RESET_TEGRA_BPMP=y
# CONFIG_FMC is not set
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_BCM_NS_USB2 is not set
# CONFIG_PHY_BCM_NS_USB3 is not set
# CONFIG_PHY_BERLIN_USB is not set
# CONFIG_PHY_BERLIN_SATA is not set
CONFIG_PHY_EXYNOS_MIPI_VIDEO=y
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_RCAR_GEN2 is not set
CONFIG_PHY_RCAR_GEN3_USB2=y
CONFIG_PHY_EXYNOS_DP_VIDEO=y
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_MT65XX_USB3 is not set
CONFIG_PHY_HI6220_USB=y
# CONFIG_PHY_SUN4I_USB is not set
# CONFIG_PHY_SUN9I_USB is not set
CONFIG_PHY_SAMSUNG_USB2=y
# CONFIG_PHY_EXYNOS4210_USB2 is not set
# CONFIG_PHY_EXYNOS4X12_USB2 is not set
# CONFIG_PHY_EXYNOS5250_USB2 is not set
CONFIG_PHY_EXYNOS5_USBDRD=y
# CONFIG_PHY_EXYNOS_PCIE is not set
# CONFIG_PHY_QCOM_APQ8064_SATA is not set
# CONFIG_PHY_QCOM_IPQ806X_SATA is not set
# CONFIG_PHY_ROCKCHIP_USB is not set
CONFIG_PHY_ROCKCHIP_INNO_USB2=y
CONFIG_PHY_ROCKCHIP_EMMC=y
# CONFIG_PHY_ROCKCHIP_DP is not set
# CONFIG_PHY_ROCKCHIP_PCIE is not set
# CONFIG_PHY_ROCKCHIP_TYPEC is not set
CONFIG_PHY_XGENE=y
# CONFIG_PHY_QCOM_UFS is not set
CONFIG_PHY_BRCM_SATA=y
CONFIG_PHY_TEGRA_XUSB=y
CONFIG_PHY_NS2_PCIE=y
CONFIG_PHY_MESON8B_USB2=y
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
#
# Performance monitor support
#
CONFIG_ARM_PMU=y
# CONFIG_QCOM_L2_PMU is not set
# CONFIG_XGENE_PMU is not set
CONFIG_RAS=y
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_LIBNVDIMM is not set
# CONFIG_DEV_DAX is not set
CONFIG_NVMEM=m
# CONFIG_MTK_EFUSE is not set
# CONFIG_QCOM_QFPROM is not set
# CONFIG_ROCKCHIP_EFUSE is not set
CONFIG_NVMEM_BCM_OCOTP=m
# CONFIG_NVMEM_SUNXI_SID is not set
# CONFIG_MESON_EFUSE is not set
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set
#
# FSI support
#
# CONFIG_FSI is not set
# CONFIG_MULTIPLEXER is not set
#
# Firmware Drivers
#
CONFIG_ARM_PSCI_FW=y
# CONFIG_ARM_PSCI_CHECKER is not set
CONFIG_ARM_SCPI_PROTOCOL=y
CONFIG_ARM_SCPI_POWER_DOMAIN=y
# CONFIG_FIRMWARE_MEMMAP is not set
CONFIG_DMIID=y
# CONFIG_DMI_SYSFS is not set
CONFIG_RASPBERRYPI_FIRMWARE=y
# CONFIG_FW_CFG_SYSFS is not set
CONFIG_QCOM_SCM=y
CONFIG_QCOM_SCM_64=y
CONFIG_HAVE_ARM_SMCCC=y
#
# EFI (Extensible Firmware Interface) Support
#
# CONFIG_EFI_VARS is not set
CONFIG_EFI_ESRT=y
CONFIG_EFI_PARAMS_FROM_FDT=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_EFI_ARMSTUB=y
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_EFI_DEV_PATH_PARSER is not set
CONFIG_MESON_SM=y
#
# Tegra firmware driver
#
CONFIG_TEGRA_IVC=y
CONFIG_TEGRA_BPMP=y
CONFIG_ACPI=y
CONFIG_ACPI_GENERIC_GSI=y
CONFIG_ACPI_CCA_REQUIRED=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_MCFG=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_REDUCED_HARDWARE_ONLY=y
CONFIG_HAVE_ACPI_APEI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_PMIC_OPREGION is not set
# CONFIG_ACPI_CONFIGFS is not set
CONFIG_ACPI_IORT=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_POSIX_ACL is not set
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
# CONFIG_EXT4_FS_SECURITY is not set
# 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_OCFS2_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX 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=y
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_OVERLAY_FS=m
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_FAT_DEFAULT_UTF8 is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_FILE_CACHE=y
# CONFIG_SQUASHFS_FILE_DIRECT is not set
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_XATTR is not set
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
# CONFIG_SQUASHFS_LZO is not set
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=y
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BACKCHANNEL=y
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_9P_FS=y
# CONFIG_9P_FS_POSIX_ACL is not set
# CONFIG_9P_FS_SECURITY is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# 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=y
# 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 is not set
# CONFIG_DLM is not set
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=y
CONFIG_KVM_ARM_HOST=y
CONFIG_KVM_ARM_PMU=y
# CONFIG_VHOST_NET is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
#
# Kernel hacking
#
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_GDB_SCRIPTS is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=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_RODATA_TEST is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON 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=y
# CONFIG_DEBUG_VM_VMACACHE is not set
# CONFIG_DEBUG_VM_RB is not set
# CONFIG_DEBUG_VM_PGFLAGS is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_KASAN=y
# CONFIG_KASAN_OUTLINE is not set
CONFIG_KASAN_INLINE=y
CONFIG_TEST_KASAN=m
CONFIG_ARCH_HAS_KCOV=y
CONFIG_KCOV=y
CONFIG_KCOV_INSTRUMENT_ALL=y
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_WQ_WATCHDOG is not set
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHED_INFO=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set
# CONFIG_DEBUG_PREEMPT is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
CONFIG_LOCKDEP=y
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
CONFIG_TRACE_IRQFLAGS=y
CONFIG_STACKTRACE=y
# 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_PROVE_RCU=y
# CONFIG_PROVE_RCU_REPEATEDLY is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_TORTURE_TEST is not set
# 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
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_TEST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
CONFIG_MEMTEST=y
# CONFIG_TEST_STATIC_KEYS 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_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set
# CONFIG_UBSAN is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
# CONFIG_STRICT_DEVMEM is not set
# CONFIG_ARM64_PTDUMP_CORE is not set
# CONFIG_ARM64_PTDUMP_DEBUGFS is not set
# CONFIG_PID_IN_CONTEXTIDR is not set
# CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET is not set
# CONFIG_DEBUG_WX is not set
# CONFIG_DEBUG_ALIGN_RODATA is not set
# CONFIG_DEBUG_EFI is not set
# CONFIG_CORESIGHT is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
# CONFIG_SECURITY_WRITABLE_HOOKS is not set
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HAVE_ARCH_HARDENED_USERCOPY=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=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_IMA is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=m
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_ACOMP2=y
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
# CONFIG_CRYPTO_MCRYPTD is not set
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y
CONFIG_CRYPTO_ENGINE=m
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_SEQIV=m
CONFIG_CRYPTO_ECHAINIV=y
#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
CONFIG_CRYPTO_CTR=m
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_GHASH=m
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# 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=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=m
# CONFIG_CRYPTO_SHA3 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_ANUBIS is not set
CONFIG_CRYPTO_ARC4=m
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
#
# 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
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# 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=y
# CONFIG_CRYPTO_DEV_MARVELL_CESA is not set
# CONFIG_CRYPTO_DEV_FSL_CAAM is not set
# CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC is not set
# CONFIG_CRYPTO_DEV_S5P is not set
# CONFIG_CRYPTO_DEV_CCP is not set
# CONFIG_CAVIUM_CPT is not set
# CONFIG_CRYPTO_DEV_QCE is not set
# CONFIG_CRYPTO_DEV_ROCKCHIP is not set
CONFIG_CRYPTO_DEV_VIRTIO=m
CONFIG_CRYPTO_DEV_BCM_SPU=m
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
#
# Certificates for signature checking
#
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
CONFIG_ARM64_CRYPTO=y
# CONFIG_CRYPTO_SHA256_ARM64 is not set
# CONFIG_CRYPTO_SHA512_ARM64 is not set
CONFIG_CRYPTO_SHA1_ARM64_CE=y
CONFIG_CRYPTO_SHA2_ARM64_CE=y
CONFIG_CRYPTO_GHASH_ARM64_CE=y
# CONFIG_CRYPTO_CRCT10DIF_ARM64_CE is not set
# CONFIG_CRYPTO_CRC32_ARM64_CE is not set
# CONFIG_CRYPTO_AES_ARM64 is not set
CONFIG_CRYPTO_AES_ARM64_CE=y
CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
# CONFIG_CRYPTO_AES_ARM64_NEON_BLK is not set
# CONFIG_CRYPTO_CHACHA20_NEON is not set
# CONFIG_CRYPTO_AES_ARM64_BS is not set
# CONFIG_BINARY_PRINTF is not set
#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_BITREVERSE=y
CONFIG_HAVE_ARCH_BITREVERSE=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
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_CRC7=y
CONFIG_LIBCRC32C=m
# CONFIG_CRC8 is not set
CONFIG_AUDIT_GENERIC=y
CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y
CONFIG_AUDIT_COMPAT_GENERIC=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=m
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_RADIX_TREE_MULTIORDER=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
# CONFIG_DMA_NOOP_OPS is not set
# CONFIG_DMA_VIRT_OPS is not set
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_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SG_SPLIT is not set
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_STACKDEPOT=y
CONFIG_SBITMAP=y
[-- Attachment #3: kvm-srcu.c --]
[-- Type: text/x-csrc, Size: 9032 bytes --]
// autogenerated by syzkaller (http://github.com/google/syzkaller)
#ifndef __NR_mmap
#define __NR_mmap 9
#endif
#ifndef __NR_openat
#define __NR_openat 257
#endif
#ifndef __NR_ioctl
#define __NR_ioctl 16
#endif
#define _GNU_SOURCE
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <linux/capability.h>
#include <linux/if.h>
#include <linux/if_tun.h>
#include <linux/kvm.h>
#include <linux/sched.h>
#include <net/if_arp.h>
#include <assert.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#include <pthread.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
const int kFailStatus = 67;
const int kErrorStatus = 68;
const int kRetryStatus = 69;
__attribute__((noreturn)) void doexit(int status)
{
volatile unsigned i;
syscall(__NR_exit_group, status);
for (i = 0;; i++) {
}
}
__attribute__((noreturn)) void fail(const char* msg, ...)
{
int e = errno;
fflush(stdout);
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
fprintf(stderr, " (errno %d)\n", e);
doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}
__attribute__((noreturn)) void exitf(const char* msg, ...)
{
int e = errno;
fflush(stdout);
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
fprintf(stderr, " (errno %d)\n", e);
doexit(kRetryStatus);
}
static int flag_debug;
void debug(const char* msg, ...)
{
if (!flag_debug)
return;
va_list args;
va_start(args, msg);
vfprintf(stdout, msg, args);
va_end(args);
fflush(stdout);
}
__thread int skip_segv;
__thread jmp_buf segv_env;
static void segv_handler(int sig, siginfo_t* info, void* uctx)
{
uintptr_t addr = (uintptr_t)info->si_addr;
const uintptr_t prog_start = 1 << 20;
const uintptr_t prog_end = 100 << 20;
if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) &&
(addr < prog_start || addr > prog_end)) {
debug("SIGSEGV on %p, skipping\n", addr);
_longjmp(segv_env, 1);
}
debug("SIGSEGV on %p, exiting\n", addr);
doexit(sig);
for (;;) {
}
}
static void install_segv_handler()
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = segv_handler;
sa.sa_flags = SA_NODEFER | SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGBUS, &sa, NULL);
}
#define NONFAILING(...) \
{ \
__atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \
if (_setjmp(segv_env) == 0) { \
__VA_ARGS__; \
} \
__atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \
}
#define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1)
#define BITMASK_LEN_OFF(type, bf_off, bf_len) \
(type)(BITMASK_LEN(type, (bf_len)) << (bf_off))
#define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len) \
if ((bf_off) == 0 && (bf_len) == 0) { \
*(type*)(addr) = (type)(val); \
} else { \
type new_val = *(type*)(addr); \
new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len)); \
new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off); \
*(type*)(addr) = new_val; \
}
static uintptr_t execute_syscall(int nr, uintptr_t a0, uintptr_t a1,
uintptr_t a2, uintptr_t a3,
uintptr_t a4, uintptr_t a5,
uintptr_t a6, uintptr_t a7,
uintptr_t a8)
{
switch (nr) {
default:
return syscall(nr, a0, a1, a2, a3, a4, a5);
}
}
static void setup_main_process()
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_IGN;
syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
install_segv_handler();
char tmpdir_template[] = "./syzkaller.XXXXXX";
char* tmpdir = mkdtemp(tmpdir_template);
if (!tmpdir)
fail("failed to mkdtemp");
if (chmod(tmpdir, 0777))
fail("failed to chmod");
if (chdir(tmpdir))
fail("failed to chdir");
}
static void loop();
static void sandbox_common()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
setsid();
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 128 << 20;
setrlimit(RLIMIT_AS, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
unshare(CLONE_NEWNS);
unshare(CLONE_NEWIPC);
unshare(CLONE_IO);
}
static int do_sandbox_none(int executor_pid, bool enable_tun)
{
int pid = fork();
if (pid)
return pid;
sandbox_common();
loop();
doexit(1);
}
static void remove_dir(const char* dir)
{
DIR* dp;
struct dirent* ep;
int iter = 0;
retry:
dp = opendir(dir);
if (dp == NULL) {
if (errno == EMFILE) {
exitf("opendir(%s) failed due to NOFILE, exiting");
}
exitf("opendir(%s) failed", dir);
}
while ((ep = readdir(dp))) {
if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
continue;
char filename[FILENAME_MAX];
snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
struct stat st;
if (lstat(filename, &st))
exitf("lstat(%s) failed", filename);
if (S_ISDIR(st.st_mode)) {
remove_dir(filename);
continue;
}
int i;
for (i = 0;; i++) {
debug("unlink(%s)\n", filename);
if (unlink(filename) == 0)
break;
if (errno == EROFS) {
debug("ignoring EROFS\n");
break;
}
if (errno != EBUSY || i > 100)
exitf("unlink(%s) failed", filename);
debug("umount(%s)\n", filename);
if (umount2(filename, MNT_DETACH))
exitf("umount(%s) failed", filename);
}
}
closedir(dp);
int i;
for (i = 0;; i++) {
debug("rmdir(%s)\n", dir);
if (rmdir(dir) == 0)
break;
if (i < 100) {
if (errno == EROFS) {
debug("ignoring EROFS\n");
break;
}
if (errno == EBUSY) {
debug("umount(%s)\n", dir);
if (umount2(dir, MNT_DETACH))
exitf("umount(%s) failed", dir);
continue;
}
if (errno == ENOTEMPTY) {
if (iter < 100) {
iter++;
goto retry;
}
}
}
exitf("rmdir(%s) failed", dir);
}
}
static uint64_t current_time_ms()
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts))
fail("clock_gettime failed");
return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}
static void test();
void loop()
{
int iter;
for (iter = 0;; iter++) {
char cwdbuf[256];
sprintf(cwdbuf, "./%d", iter);
if (mkdir(cwdbuf, 0777))
fail("failed to mkdir");
int pid = fork();
if (pid < 0)
fail("clone failed");
if (pid == 0) {
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
if (chdir(cwdbuf))
fail("failed to chdir");
test();
doexit(0);
}
int status = 0;
uint64_t start = current_time_ms();
for (;;) {
int res = waitpid(-1, &status, __WALL | WNOHANG);
if (res == pid)
break;
usleep(1000);
if (current_time_ms() - start > 5 * 1000) {
kill(-pid, SIGKILL);
kill(pid, SIGKILL);
while (waitpid(-1, &status, __WALL) != pid) {
}
break;
}
}
remove_dir(cwdbuf);
}
}
long r[4];
void test()
{
memset(r, -1, sizeof(r));
r[0] = execute_syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul,
0x32ul, 0xfffffffffffffffful, 0x0ul, 0, 0, 0);
NONFAILING(memcpy((void*)0x20a05000,
"\x2f\x64\x65\x76\x2f\x6b\x76\x6d\x00", 9));
r[2] = execute_syscall(__NR_openat, 0xffffffffffffff9cul,
0x20a05000ul, 0x0ul, 0x0ul, 0, 0, 0, 0, 0);
r[3] = execute_syscall(__NR_ioctl, r[2], 0xae01ul, 0x0ul, 0, 0, 0, 0,
0, 0);
}
int main()
{
int i;
for (i = 0; i < 8; i++) {
if (fork() == 0) {
setup_main_process();
int pid = do_sandbox_none(i, false);
int status = 0;
while (waitpid(pid, &status, __WALL) != pid) {
}
return 0;
}
}
sleep(1000000);
return 0;
}
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-10 19:28 srcu: BUG in __synchronize_srcu Andrey Konovalov
@ 2017-03-10 19:29 ` Andrey Konovalov
2017-03-10 19:42 ` Dmitry Vyukov
2017-03-10 22:26 ` Paul E. McKenney
0 siblings, 2 replies; 11+ messages in thread
From: Andrey Konovalov @ 2017-03-10 19:29 UTC (permalink / raw)
To: Lai Jiangshan, Paul E. McKenney, Josh Triplett, Steven Rostedt,
Mathieu Desnoyers, LKML
Cc: syzkaller, Dmitry Vyukov, Kostya Serebryany
On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> Hi,
>
> I've got the following error report while fuzzing the kernel with
> syzkaller on an arm64 board.
This also happened on x86 a few times during fuzzing, however it
wasn't reproducible.
>
> On linux-next commit 56b8bad5e066c23e8fa273ef5fba50bd3da2ace8 (Mar 8).
>
> A reproducer and .config are attached.
>
> The bug happens while executing the following syzkaller program in a loop.
> While it looks kvm-related, it might be that kvm just stresses the
> srcu subsystem.
>
> mmap(&(0x7f0000000000/0xfff000)=nil, (0xfff000), 0x3, 0x32,
> 0xffffffffffffffff, 0x0)
> r0 = openat$kvm(0xffffffffffffff9c,
> &(0x7f0000a05000)="2f6465762f6b766d00", 0x0, 0x0)
> ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
>
> ------------[ cut here ]------------
> kernel BUG at kernel/rcu/srcu.c:436!
> Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
> Modules linked in: meson_drm drm_kms_helper drm dwmac_generic realtek
> dwmac_meson8b stmmac_platform stmmac meson_rng rng_core meson_gxbb_wdt
> ipv6
> CPU: 3 PID: 4250 Comm: a.out Not tainted 4.11.0-rc1-next-20170308-xc2-dirty #3
> Hardware name: Hardkernel ODROID-C2 (DT)
> task: ffff800063699700 task.stack: ffff800063cfc000
> PC is at[< none >] __synchronize_srcu+0x3d0/0x470
> kernel/rcu/srcu.c:412
> LR is at[< none >] __synchronize_srcu+0x130/0x470
> kernel/rcu/srcu.c:434
> pc : [<ffff20000821a3b8>] lr : [<ffff20000821a118>] pstate: 80000145
> sp : ffff800063cffb00
> x29: ffff800063cffb00 x28: ffff80005b1d6e00
> x27: 1fffe4000156b242 x26: ffff800063cffb70
> x25: 1fffe4000156b23b x24: ffff20000ab591d8
> x23: ffff200009dbf000 x22: ffff20000ab591a0
> x21: ffff20000ab59210 x20: ffff800063cffb70
> x19: ffff20000ab59190 x18: 0000000000000a03
> x17: 0000ffff944f3950 x16: ffff20000811f818
> x15: 0000000000000000 x14: 0000000000000007
> x13: 0000000000000002 x12: 0000000000000000
> x11: 0000000000000040 x10: 1fffe400014b568c
> x9 : ffff20000ab29000 x8 : 0000000000000007
> x7 : 0000000000000001 x6 : 0000000000000000
> x5 : 0000000000000040 x4 : 0000000000000003
> x3 : ffff20000ab59208 x2 : 1fffe4000156b243
> x1 : 0000000000000000 x0 : ffff80005e71fb70
>
> Process a.out (pid: 4250, stack limit = 0xffff800063cfc000)
> Stack: (0xffff800063cffb00 to 0xffff800063d00000)
> fb00: ffff800063cffbd0 ffff20000821a480 ffff20000ab59190 1ffff0000b63adc0
> fb20: dfff200000000000 ffff20000ab59190 ffff80004b9a8a00 1ffff000097351bc
> fb40: ffff80004b9a8de0 0000000000000000 ffff800060cad328 ffff80005b1d6e00
> fb60: ffff80004b9a8a00 1ffff000097351bc ffff80004f5e7b70 ffff200008217968
> fb80: ffff800000000001 dead4ead00010001 dfff2000ffffffff ffffffffffffffff
> fba0: ffff20000ab4c4b0 0000000000000000 0000000000000000 ffff200009b0b358
> fbc0: ffff800063cffbc0 ffff800063cffbc0 ffff800063cffbf0 ffff2000083ffd20
> fbe0: ffff80005b1d6e00 0000000000000140 ffff800063cffc50 ffff2000083aedfc
> fc00: ffff80004b9a8a00 ffff80004b9a8a00 ffff80004b9a8d78 0000000000000001
> fc20: 00000000000002a6 ffff80004f406780 ffff80004b9a8aa0 ffff800063699ac8
> fc40: 1ffff0000c6d3359 ffff800063699700 ffff800063cffd20 ffff20000810caec
> fc60: ffff80004b9a8a00 ffff80004b9a8b20 ffff80004b9a8d78 0000000000000001
> fc80: ffff80005ebae2d8 ffff800063699ac8 ffff800063cffca0 ffff20000840fc08
> fca0: ffff800063cffce0 ffff20000843327c ffff80005ebae2d8 ffff80004b9a8a00
> fcc0: ffff80005ebae0f0 ffff200009de8000 ffff800063cffce0 ffff2000084332c4
> fce0: ffff800063cffd20 ffff20000810cc64 ffff80004b9a8a00 ffff80004b9a8a48
> fd00: ffff80004b9a8d78 0000000000000001 ffff800063cffd20 ffff20000810cae0
> fd20: ffff800063cffd60 ffff20000811db88 ffff800063699700 ffff800063699700
> fd40: ffff80004b9a8a00 0000000000000001 00000000000002a6 ffff80004f406780
> fd60: ffff800063cffe40 ffff20000811f694 ffff80004f406780 0000000000000000
> fd80: ffff80004f40681c 0000000000000004 1ffff00009e80d03 1ffff00009e80d02
> fda0: ffff80004f406810 ffff800063699bd0 ffff800063699700 ffff800063699700
> fdc0: ffff800063cffe80 ffff200008490868 0000000000000000 ffff80005fd45000
> fde0: ffff80006369972c ffff800063699d48 1ffff0000c6d32e5 0000000000000004
> fe00: 0000000000000123 000000000000001d 1ffff0000c6d33a9 ffff800063699700
> fe20: ffff800063cffe30 ffff200008813c5c ffff800063cffe40 ffff20000811f688
> fe40: ffff800063cffea0 ffff20000811f838 0000000000000000 000060006d24d000
> fe60: ffffffffffffffff 0000ffff944f3974 0000000000000000 0000000000000015
> fe80: 0000000000000123 000000000000005e ffff200009852000 ffff20000811f82c
> fea0: 0000000000000000 ffff200008083f70 0000000000000000 0000000000000015
> fec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> fee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> ff00: 000000000000005e ffffff80ffffffd0 0101010101010101 0000000000000020
> ff20: 0000000000000018 0000000056bcb768 0000000000000000 0000ffff945be000
> ff40: 0000000000413110 0000ffff944f3950 0000000000000a03 00000000004020f8
> ff60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> ff80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> ffa0: 0000000000000000 0000ffffc0cc99b0 0000000000401248 0000ffffc0cc99b0
> ffc0: 0000ffff944f3974 0000000000000000 0000000000000000 000000000000005e
> ffe0: 0000000000000000 0000000000000000 0403030303030100 0807060606060605
> Call trace:
> Exception stack(0xffff800063cff910 to 0xffff800063cffa40)
> f900: ffff20000ab59190 0001000000000000
> f920: ffff800063cffb00 ffff20000821a3b8 0000000080000145 000000000000003d
> f940: 1fffe4000156b23b ffff800063cffb70 ffff800063cff980 0001000000000000
> f960: ffff800063cff9d0 ffff2000081da8e8 ffff800063699ec0 ffff200009df9000
> f980: ffff800063cff990 ffff20000891e1e0 ffff800063cff9d0 ffff20000891e23c
> f9a0: ffff200009dbfe18 0000000000000040 0000000000000004 0000000000000001
> f9c0: 00000000000008ac 00000000000008ac ffff80005e71fb70 0000000000000000
> f9e0: 1fffe4000156b243 ffff20000ab59208 0000000000000003 0000000000000040
> fa00: 0000000000000000 0000000000000001 0000000000000007 ffff20000ab29000
> fa20: 1fffe400014b568c 0000000000000040 0000000000000000 0000000000000002
> [<ffff20000821a3b8>] __synchronize_srcu+0x3d0/0x470 kernel/rcu/srcu.c:412
> [<ffff20000821a480>] synchronize_srcu+0x28/0x60 kernel/rcu/srcu.c:516
> [<ffff2000083ffd20>] __mmu_notifier_release+0x268/0x3e0 mm/mmu_notifier.c:102
> [< inline >] mmu_notifier_release ./include/linux/mmu_notifier.h:235
> [<ffff2000083aedfc>] exit_mmap+0x21c/0x288 mm/mmap.c:2941
> [< inline >] __mmput kernel/fork.c:881
> [<ffff20000810caec>] mmput+0xdc/0x2e0 kernel/fork.c:903
> [< inline >] exit_mm kernel/exit.c:557
> [<ffff20000811db88>] do_exit+0x648/0x2020 kernel/exit.c:865
> [<ffff20000811f694>] do_group_exit+0xdc/0x260 kernel/exit.c:982
> [< inline >] SYSC_exit_group kernel/exit.c:993
> [<ffff20000811f838>] __wake_up_parent+0x0/0x60 kernel/exit.c:991
> [<ffff200008083f70>] el0_svc_naked+0x24/0x28 arch/arm64/kernel/entry.S:813
> Code: 97feee10 35fff680 17ffff1c d503201f (d4210000)
> ---[ end trace b727e9858bfac1ff ]---
> Kernel panic - not syncing: Fatal exception
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-10 19:29 ` Andrey Konovalov
@ 2017-03-10 19:42 ` Dmitry Vyukov
2017-03-10 22:26 ` Paul E. McKenney
1 sibling, 0 replies; 11+ messages in thread
From: Dmitry Vyukov @ 2017-03-10 19:42 UTC (permalink / raw)
To: Andrey Konovalov
Cc: Lai Jiangshan, Paul E. McKenney, Josh Triplett, Steven Rostedt,
Mathieu Desnoyers, LKML, syzkaller, Kostya Serebryany
On Fri, Mar 10, 2017 at 8:29 PM, 'Andrey Konovalov' via syzkaller
<syzkaller@googlegroups.com> wrote:
> On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
>> Hi,
>>
>> I've got the following error report while fuzzing the kernel with
>> syzkaller on an arm64 board.
>
> This also happened on x86 a few times during fuzzing, however it
> wasn't reproducible.
FWIW here are 2 crashes that we hit on x86_64 on
linux-next/56b8bad5e066c23e8fa273ef5fba50bd3da2ace8:
kernel BUG at kernel/rcu/srcu.c:436!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
(ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 26567 Comm: syz-executor3 Not tainted 4.11.0-rc1-next-20170308+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 01/01/2011
task: ffff8801cbcba4c0 task.stack: ffff8801d1258000
RIP: 0010:__synchronize_srcu+0x695/0x7f0 kernel/rcu/srcu.c:412
RSP: 0018:ffff8801d125ea00 EFLAGS: 00010287
RAX: dffffc0000000000 RBX: ffff8801d125ea90 RCX: 0000000000000000
RDX: 1ffffffff0cf68f0 RSI: 0000000000000040 RDI: ffffffff867b4788
RBP: ffff8801d125eb40 R08: ffffffff867b4780 R09: ffffffff867b4778
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003a24bd46
R13: ffffffff867b4700 R14: ffffffff85680588 R15: ffff8801d125ea90
FS: 00007f55c1334700(0000) GS:ffff8801dbf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c81cbd7200 CR3: 00000001da67d000 CR4: 00000000001426e0
Call Trace:
synchronize_srcu+0x1e/0x40 kernel/rcu/srcu.c:516
__mmu_notifier_release+0x373/0x6c0 mm/mmu_notifier.c:102
mmu_notifier_release include/linux/mmu_notifier.h:235 [inline]
exit_mmap+0x3cc/0x490 mm/mmap.c:2941
__mmput kernel/fork.c:881 [inline]
mmput+0x22b/0x6e0 kernel/fork.c:903
exit_mm kernel/exit.c:557 [inline]
do_exit+0xa41/0x28f0 kernel/exit.c:865
do_group_exit+0x149/0x420 kernel/exit.c:982
get_signal+0x7e0/0x1820 kernel/signal.c:2318
do_signal+0xd2/0x2190 arch/x86/kernel/signal.c:808
exit_to_usermode_loop+0x200/0x2a0 arch/x86/entry/common.c:157
prepare_exit_to_usermode arch/x86/entry/common.c:191 [inline]
syscall_return_slowpath+0x4d3/0x570 arch/x86/entry/common.c:260
entry_SYSCALL_64_fastpath+0xbc/0xbe
RIP: 0033:0x44fb79
RSP: 002b:00007f55c1333b58 EFLAGS: 00000212 ORIG_RAX: 0000000000000101
RAX: 0000000000000026 RBX: 00000000007080a8 RCX: 000000000044fb79
RDX: 0000000000000000 RSI: 000000002003a000 RDI: ffffffffffffff9c
RBP: 0000000000000331 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffff9c
R13: 000000002003a000 R14: 0000000000000000 R15: 0000000000000000
Code: e8 e1 3e f8 ff 85 c0 0f 85 9a fd ff ff be ff ff ff ff 48 c7 c7
c0 d9 12 85 e8 c8 3e f8 ff 85 c0 0f 85 81 fd ff ff e9 12 fa ff ff <0f>
0b c6 44 24 20 00 e9 e5 fc ff ff c6 44 24 20 00 41 bf 01 00
RIP: __synchronize_srcu+0x695/0x7f0 kernel/rcu/srcu.c:412 RSP: ffff8801d125ea00
---[ end trace c25c3b4c622f543d ]---
------------[ cut here ]------------
QAT: Invalid ioctl
kernel BUG at kernel/rcu/srcu.c:436!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
(ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3886 Comm: kworker/u4:10 Not tainted 4.11.0-rc1-next-20170308+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 01/01/2011
Workqueue: events_unbound fsnotify_mark_destroy_workfn
task: ffff8801c384c880 task.stack: ffff8801d9658000
RIP: 0010:__synchronize_srcu+0x695/0x7f0 kernel/rcu/srcu.c:412
RSP: 0018:ffff8801d965f250 EFLAGS: 00010287
RAX: dffffc0000000000 RBX: ffff8801d965f2e0 RCX: 0000000000000000
RDX: 1ffffffff0cf81a8 RSI: 0000000000000040 RDI: ffffffff867c0d48
RBP: ffff8801d965f390 R08: ffffffff867c0d40 R09: ffffffff867c0d38
R10: 0000000000000006 R11: 0000000000000000 R12: 1ffff1003b2cbe50
R13: ffffffff867c0cc0 R14: ffffffff85680588 R15: ffff8801d965f2e0
FS: 0000000000000000(0000) GS:ffff8801dbe00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001ddbc37000 CR3: 00000001c46e2000 CR4: 00000000001406f0
Call Trace:
synchronize_srcu+0x1e/0x40 kernel/rcu/srcu.c:516
fsnotify_mark_destroy_list+0x19d/0x540 fs/notify/mark.c:539
fsnotify_mark_destroy_workfn+0xe/0x10 fs/notify/mark.c:549
process_one_work+0xbd0/0x1c10 kernel/workqueue.c:2097
worker_thread+0x223/0x1990 kernel/workqueue.c:2231
kthread+0x326/0x3f0 kernel/kthread.c:229
ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430
Code: e8 e1 3e f8 ff 85 c0 0f 85 9a fd ff ff be ff ff ff ff 48 c7 c7
c0 d9 12 85 e8 c8 3e f8 ff 85 c0 0f 85 81 fd ff ff e9 12 fa ff ff <0f>
0b c6 44 24 20 00 e9 e5 fc ff ff c6 44 24 20 00 41 bf 01 00
RIP: __synchronize_srcu+0x695/0x7f0 kernel/rcu/srcu.c:412 RSP: ffff8801d965f250
---[ end trace 4aa6116de274db2a ]---
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-10 19:29 ` Andrey Konovalov
2017-03-10 19:42 ` Dmitry Vyukov
@ 2017-03-10 22:26 ` Paul E. McKenney
2017-03-11 14:25 ` Mathieu Desnoyers
2017-03-14 7:47 ` Lance Roy
1 sibling, 2 replies; 11+ messages in thread
From: Paul E. McKenney @ 2017-03-10 22:26 UTC (permalink / raw)
To: Andrey Konovalov
Cc: Lai Jiangshan, Josh Triplett, Steven Rostedt, Mathieu Desnoyers,
LKML, syzkaller, Dmitry Vyukov, Kostya Serebryany
On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
> On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> > Hi,
> >
> > I've got the following error report while fuzzing the kernel with
> > syzkaller on an arm64 board.
>
> This also happened on x86 a few times during fuzzing, however it
> wasn't reproducible.
>
> >
> > On linux-next commit 56b8bad5e066c23e8fa273ef5fba50bd3da2ace8 (Mar 8).
> >
> > A reproducer and .config are attached.
> >
> > The bug happens while executing the following syzkaller program in a loop.
> > While it looks kvm-related, it might be that kvm just stresses the
> > srcu subsystem.
> >
> > mmap(&(0x7f0000000000/0xfff000)=nil, (0xfff000), 0x3, 0x32,
> > 0xffffffffffffffff, 0x0)
> > r0 = openat$kvm(0xffffffffffffff9c,
> > &(0x7f0000a05000)="2f6465762f6b766d00", 0x0, 0x0)
> > ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
> >
> > ------------[ cut here ]------------
> > kernel BUG at kernel/rcu/srcu.c:436!
This is on v4.10, correct?
> > Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
> > Modules linked in: meson_drm drm_kms_helper drm dwmac_generic realtek
> > dwmac_meson8b stmmac_platform stmmac meson_rng rng_core meson_gxbb_wdt
> > ipv6
> > CPU: 3 PID: 4250 Comm: a.out Not tainted 4.11.0-rc1-next-20170308-xc2-dirty #3
> > Hardware name: Hardkernel ODROID-C2 (DT)
> > task: ffff800063699700 task.stack: ffff800063cfc000
> > PC is at[< none >] __synchronize_srcu+0x3d0/0x470
> > kernel/rcu/srcu.c:412
> > LR is at[< none >] __synchronize_srcu+0x130/0x470
> > kernel/rcu/srcu.c:434
> > pc : [<ffff20000821a3b8>] lr : [<ffff20000821a118>] pstate: 80000145
> > sp : ffff800063cffb00
> > x29: ffff800063cffb00 x28: ffff80005b1d6e00
> > x27: 1fffe4000156b242 x26: ffff800063cffb70
> > x25: 1fffe4000156b23b x24: ffff20000ab591d8
> > x23: ffff200009dbf000 x22: ffff20000ab591a0
> > x21: ffff20000ab59210 x20: ffff800063cffb70
> > x19: ffff20000ab59190 x18: 0000000000000a03
> > x17: 0000ffff944f3950 x16: ffff20000811f818
> > x15: 0000000000000000 x14: 0000000000000007
> > x13: 0000000000000002 x12: 0000000000000000
> > x11: 0000000000000040 x10: 1fffe400014b568c
> > x9 : ffff20000ab29000 x8 : 0000000000000007
> > x7 : 0000000000000001 x6 : 0000000000000000
> > x5 : 0000000000000040 x4 : 0000000000000003
> > x3 : ffff20000ab59208 x2 : 1fffe4000156b243
> > x1 : 0000000000000000 x0 : ffff80005e71fb70
> >
> > Process a.out (pid: 4250, stack limit = 0xffff800063cfc000)
> > Stack: (0xffff800063cffb00 to 0xffff800063d00000)
> > fb00: ffff800063cffbd0 ffff20000821a480 ffff20000ab59190 1ffff0000b63adc0
> > fb20: dfff200000000000 ffff20000ab59190 ffff80004b9a8a00 1ffff000097351bc
> > fb40: ffff80004b9a8de0 0000000000000000 ffff800060cad328 ffff80005b1d6e00
> > fb60: ffff80004b9a8a00 1ffff000097351bc ffff80004f5e7b70 ffff200008217968
> > fb80: ffff800000000001 dead4ead00010001 dfff2000ffffffff ffffffffffffffff
> > fba0: ffff20000ab4c4b0 0000000000000000 0000000000000000 ffff200009b0b358
> > fbc0: ffff800063cffbc0 ffff800063cffbc0 ffff800063cffbf0 ffff2000083ffd20
> > fbe0: ffff80005b1d6e00 0000000000000140 ffff800063cffc50 ffff2000083aedfc
> > fc00: ffff80004b9a8a00 ffff80004b9a8a00 ffff80004b9a8d78 0000000000000001
> > fc20: 00000000000002a6 ffff80004f406780 ffff80004b9a8aa0 ffff800063699ac8
> > fc40: 1ffff0000c6d3359 ffff800063699700 ffff800063cffd20 ffff20000810caec
> > fc60: ffff80004b9a8a00 ffff80004b9a8b20 ffff80004b9a8d78 0000000000000001
> > fc80: ffff80005ebae2d8 ffff800063699ac8 ffff800063cffca0 ffff20000840fc08
> > fca0: ffff800063cffce0 ffff20000843327c ffff80005ebae2d8 ffff80004b9a8a00
> > fcc0: ffff80005ebae0f0 ffff200009de8000 ffff800063cffce0 ffff2000084332c4
> > fce0: ffff800063cffd20 ffff20000810cc64 ffff80004b9a8a00 ffff80004b9a8a48
> > fd00: ffff80004b9a8d78 0000000000000001 ffff800063cffd20 ffff20000810cae0
> > fd20: ffff800063cffd60 ffff20000811db88 ffff800063699700 ffff800063699700
> > fd40: ffff80004b9a8a00 0000000000000001 00000000000002a6 ffff80004f406780
> > fd60: ffff800063cffe40 ffff20000811f694 ffff80004f406780 0000000000000000
> > fd80: ffff80004f40681c 0000000000000004 1ffff00009e80d03 1ffff00009e80d02
> > fda0: ffff80004f406810 ffff800063699bd0 ffff800063699700 ffff800063699700
> > fdc0: ffff800063cffe80 ffff200008490868 0000000000000000 ffff80005fd45000
> > fde0: ffff80006369972c ffff800063699d48 1ffff0000c6d32e5 0000000000000004
> > fe00: 0000000000000123 000000000000001d 1ffff0000c6d33a9 ffff800063699700
> > fe20: ffff800063cffe30 ffff200008813c5c ffff800063cffe40 ffff20000811f688
> > fe40: ffff800063cffea0 ffff20000811f838 0000000000000000 000060006d24d000
> > fe60: ffffffffffffffff 0000ffff944f3974 0000000000000000 0000000000000015
> > fe80: 0000000000000123 000000000000005e ffff200009852000 ffff20000811f82c
> > fea0: 0000000000000000 ffff200008083f70 0000000000000000 0000000000000015
> > fec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > fee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > ff00: 000000000000005e ffffff80ffffffd0 0101010101010101 0000000000000020
> > ff20: 0000000000000018 0000000056bcb768 0000000000000000 0000ffff945be000
> > ff40: 0000000000413110 0000ffff944f3950 0000000000000a03 00000000004020f8
> > ff60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > ff80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> > ffa0: 0000000000000000 0000ffffc0cc99b0 0000000000401248 0000ffffc0cc99b0
> > ffc0: 0000ffff944f3974 0000000000000000 0000000000000000 000000000000005e
> > ffe0: 0000000000000000 0000000000000000 0403030303030100 0807060606060605
> > Call trace:
> > Exception stack(0xffff800063cff910 to 0xffff800063cffa40)
> > f900: ffff20000ab59190 0001000000000000
> > f920: ffff800063cffb00 ffff20000821a3b8 0000000080000145 000000000000003d
> > f940: 1fffe4000156b23b ffff800063cffb70 ffff800063cff980 0001000000000000
> > f960: ffff800063cff9d0 ffff2000081da8e8 ffff800063699ec0 ffff200009df9000
> > f980: ffff800063cff990 ffff20000891e1e0 ffff800063cff9d0 ffff20000891e23c
> > f9a0: ffff200009dbfe18 0000000000000040 0000000000000004 0000000000000001
> > f9c0: 00000000000008ac 00000000000008ac ffff80005e71fb70 0000000000000000
> > f9e0: 1fffe4000156b243 ffff20000ab59208 0000000000000003 0000000000000040
> > fa00: 0000000000000000 0000000000000001 0000000000000007 ffff20000ab29000
> > fa20: 1fffe400014b568c 0000000000000040 0000000000000000 0000000000000002
> > [<ffff20000821a3b8>] __synchronize_srcu+0x3d0/0x470 kernel/rcu/srcu.c:412
> > [<ffff20000821a480>] synchronize_srcu+0x28/0x60 kernel/rcu/srcu.c:516
> > [<ffff2000083ffd20>] __mmu_notifier_release+0x268/0x3e0 mm/mmu_notifier.c:102
> > [< inline >] mmu_notifier_release ./include/linux/mmu_notifier.h:235
> > [<ffff2000083aedfc>] exit_mmap+0x21c/0x288 mm/mmap.c:2941
> > [< inline >] __mmput kernel/fork.c:881
> > [<ffff20000810caec>] mmput+0xdc/0x2e0 kernel/fork.c:903
> > [< inline >] exit_mm kernel/exit.c:557
> > [<ffff20000811db88>] do_exit+0x648/0x2020 kernel/exit.c:865
> > [<ffff20000811f694>] do_group_exit+0xdc/0x260 kernel/exit.c:982
> > [< inline >] SYSC_exit_group kernel/exit.c:993
> > [<ffff20000811f838>] __wake_up_parent+0x0/0x60 kernel/exit.c:991
> > [<ffff200008083f70>] el0_svc_naked+0x24/0x28 arch/arm64/kernel/entry.S:813
> > Code: 97feee10 35fff680 17ffff1c d503201f (d4210000)
> > ---[ end trace b727e9858bfac1ff ]---
> > Kernel panic - not syncing: Fatal exception
So the theory is that if !sp->running, all of SRCU's queues must be empty.
So if you are holding ->queue_lock (with irqs disabled) and you see
!sp->running, and then you enqueue a callback on ->batch_check0, then
that callback must be the first in the list. And the code preceding
the WARN_ON() you triggered does in fact check and enqueue shile holding
->queue_lock with irqs disabled.
And rcu_batch_queue() does operate FIFO as required. (Otherwise,
srcu_barrier() would not work.)
There are only three calls to rcu_batch_queue(), and the one involved with
the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
->batch_check1 to ->batch_done, so nothing should slip in front.
Of course, if ->running were ever set to false with any of ->batch_check0,
->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
But srcu_reschedule() sets it to false only if all four batches are
empty (and checks and sets under ->queue_lock()), and all other cases
where it is set to false happen at initialization time, and also clear
out the queues. Of course, if someone raced an init_srcu_struct() with
either a call_srcu() or synchronize_srcu(), all bets are off. Now,
mmu_notifier.c does invoke init_srcu_struct() manually, but it does
so at subsys_initcall() time. Which -might- be after other things are
happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
and replace the "static struct srcu_struct srcu" with:
DEFINE_STATIC_SRCU(srcu);
But this might require changing the name -- I vaguely recall some
strangeness where the names of statically defined per-CPU variables need
to be globally unique even when static. Easy enough to do, though.
Might need a similar change to the "srcu" instances defined in vmd.c
and kvm_host.h -- assuming that this change helps.
Another possibility is that something in SRCU is messing with either the
queues or the ->running field without holding ->queue_lock. And that does
seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
without holding anything. Which seems like it could cause trouble
if someone else was invoking synchronize_srcu() concurrently. Those
particular invocations might be safe due to access only by a single
kthread/workqueue, given that all updates to ->batch_queue are protected
by ->queue_lock (aside from initialization).
But ->batch_check0 is updated by __synchronize_srcu(), though protected
by ->queue_lock, and only if ->running is false, and with both the
check and the update protected by the same ->queue_lock critical section.
If ->running is false, then the workqueue cannot be running, so it remains
to see if all other updates to ->batch_check0 are either with ->queue_lock
held and ->running false on the one hand or from the workqueue handler
on the other:
srcu_collect_new() updates with ->queue_lock held, but does not check
->running. It is invoked only from process_srcu(), which in
turn is invoked only as a workqueue handler. The work is queued
from:
call_srcu(), which does so with ->queue_lock held having just
set ->running to true.
srcu_reschedule(), which invokes it if there are non-empty
queues. This is invoked from __synchronize_srcu()
in the case where it has set ->running to true
after finding the queues empty, which should imply
no other instances.
It is also invoked from process_srcu(), which is
invoked only as a workqueue handler. (Yay
recursive inquiry!)
srcu_advance_batches() updates without locks held. It is invoked as
follows:
__synchronize_srcu() in the case where ->running was set, which
as noted before excludes workqueue handlers.
process_srcu() which as noted before is only invoked from
a workqueue handler.
So an SRCU workqueue is invoked only from a workqueue handler, or from
some other task that transitioned ->running from false to true while
holding ->queuelock. There should therefore only be one SRCU workqueue
per srcu_struct, so this should be safe. Though I hope that it can
be simplified a bit. :-/
So the only suggestion I have at the moment is static definition of
the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
Thanx, Paul
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-10 22:26 ` Paul E. McKenney
@ 2017-03-11 14:25 ` Mathieu Desnoyers
2017-03-11 20:06 ` Paul E. McKenney
2017-03-14 7:47 ` Lance Roy
1 sibling, 1 reply; 11+ messages in thread
From: Mathieu Desnoyers @ 2017-03-11 14:25 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Andrey Konovalov, Lai Jiangshan, Josh Triplett, rostedt,
linux-kernel, syzkaller, Dmitry Vyukov, Kostya Serebryany
----- On Mar 10, 2017, at 5:26 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
>> On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
>> > Hi,
>> >
>> > I've got the following error report while fuzzing the kernel with
>> > syzkaller on an arm64 board.
>>
>> This also happened on x86 a few times during fuzzing, however it
>> wasn't reproducible.
>>
>> >
>> > On linux-next commit 56b8bad5e066c23e8fa273ef5fba50bd3da2ace8 (Mar 8).
>> >
>> > A reproducer and .config are attached.
>> >
>> > The bug happens while executing the following syzkaller program in a loop.
>> > While it looks kvm-related, it might be that kvm just stresses the
>> > srcu subsystem.
>> >
>> > mmap(&(0x7f0000000000/0xfff000)=nil, (0xfff000), 0x3, 0x32,
>> > 0xffffffffffffffff, 0x0)
>> > r0 = openat$kvm(0xffffffffffffff9c,
>> > &(0x7f0000a05000)="2f6465762f6b766d00", 0x0, 0x0)
>> > ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
>> >
>> > ------------[ cut here ]------------
>> > kernel BUG at kernel/rcu/srcu.c:436!
>
> This is on v4.10, correct?
No, as stated above, this is on linux-next as of March 8, 2017.
I'm currently looking at the diff of kernel/rcu/srcu.c between v4.10 and
next-20170310. There are a few changes there.
One of them is the introduction of the new srcu algorithm with separate
lock vs unlock counters, which simplifies read lock/unlock by removing the
sequence counter.
Another change that directly impacts __synchronize_rcu() (near the
BUG()) is bc138e7a "srcu: Allow mid-boot use of synchronize_srcu()".
Odds are that this change introduce an unforeseen scenario that
skips awaiting for completion later after boot than expected. It
might be worthwhile to review it closely once more.
Thoughts ?
Thanks,
Mathieu
>
>> > Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
>> > Modules linked in: meson_drm drm_kms_helper drm dwmac_generic realtek
>> > dwmac_meson8b stmmac_platform stmmac meson_rng rng_core meson_gxbb_wdt
>> > ipv6
>> > CPU: 3 PID: 4250 Comm: a.out Not tainted 4.11.0-rc1-next-20170308-xc2-dirty #3
>> > Hardware name: Hardkernel ODROID-C2 (DT)
>> > task: ffff800063699700 task.stack: ffff800063cfc000
>> > PC is at[< none >] __synchronize_srcu+0x3d0/0x470
>> > kernel/rcu/srcu.c:412
>> > LR is at[< none >] __synchronize_srcu+0x130/0x470
>> > kernel/rcu/srcu.c:434
>> > pc : [<ffff20000821a3b8>] lr : [<ffff20000821a118>] pstate: 80000145
>> > sp : ffff800063cffb00
>> > x29: ffff800063cffb00 x28: ffff80005b1d6e00
>> > x27: 1fffe4000156b242 x26: ffff800063cffb70
>> > x25: 1fffe4000156b23b x24: ffff20000ab591d8
>> > x23: ffff200009dbf000 x22: ffff20000ab591a0
>> > x21: ffff20000ab59210 x20: ffff800063cffb70
>> > x19: ffff20000ab59190 x18: 0000000000000a03
>> > x17: 0000ffff944f3950 x16: ffff20000811f818
>> > x15: 0000000000000000 x14: 0000000000000007
>> > x13: 0000000000000002 x12: 0000000000000000
>> > x11: 0000000000000040 x10: 1fffe400014b568c
>> > x9 : ffff20000ab29000 x8 : 0000000000000007
>> > x7 : 0000000000000001 x6 : 0000000000000000
>> > x5 : 0000000000000040 x4 : 0000000000000003
>> > x3 : ffff20000ab59208 x2 : 1fffe4000156b243
>> > x1 : 0000000000000000 x0 : ffff80005e71fb70
>> >
>> > Process a.out (pid: 4250, stack limit = 0xffff800063cfc000)
>> > Stack: (0xffff800063cffb00 to 0xffff800063d00000)
>> > fb00: ffff800063cffbd0 ffff20000821a480 ffff20000ab59190 1ffff0000b63adc0
>> > fb20: dfff200000000000 ffff20000ab59190 ffff80004b9a8a00 1ffff000097351bc
>> > fb40: ffff80004b9a8de0 0000000000000000 ffff800060cad328 ffff80005b1d6e00
>> > fb60: ffff80004b9a8a00 1ffff000097351bc ffff80004f5e7b70 ffff200008217968
>> > fb80: ffff800000000001 dead4ead00010001 dfff2000ffffffff ffffffffffffffff
>> > fba0: ffff20000ab4c4b0 0000000000000000 0000000000000000 ffff200009b0b358
>> > fbc0: ffff800063cffbc0 ffff800063cffbc0 ffff800063cffbf0 ffff2000083ffd20
>> > fbe0: ffff80005b1d6e00 0000000000000140 ffff800063cffc50 ffff2000083aedfc
>> > fc00: ffff80004b9a8a00 ffff80004b9a8a00 ffff80004b9a8d78 0000000000000001
>> > fc20: 00000000000002a6 ffff80004f406780 ffff80004b9a8aa0 ffff800063699ac8
>> > fc40: 1ffff0000c6d3359 ffff800063699700 ffff800063cffd20 ffff20000810caec
>> > fc60: ffff80004b9a8a00 ffff80004b9a8b20 ffff80004b9a8d78 0000000000000001
>> > fc80: ffff80005ebae2d8 ffff800063699ac8 ffff800063cffca0 ffff20000840fc08
>> > fca0: ffff800063cffce0 ffff20000843327c ffff80005ebae2d8 ffff80004b9a8a00
>> > fcc0: ffff80005ebae0f0 ffff200009de8000 ffff800063cffce0 ffff2000084332c4
>> > fce0: ffff800063cffd20 ffff20000810cc64 ffff80004b9a8a00 ffff80004b9a8a48
>> > fd00: ffff80004b9a8d78 0000000000000001 ffff800063cffd20 ffff20000810cae0
>> > fd20: ffff800063cffd60 ffff20000811db88 ffff800063699700 ffff800063699700
>> > fd40: ffff80004b9a8a00 0000000000000001 00000000000002a6 ffff80004f406780
>> > fd60: ffff800063cffe40 ffff20000811f694 ffff80004f406780 0000000000000000
>> > fd80: ffff80004f40681c 0000000000000004 1ffff00009e80d03 1ffff00009e80d02
>> > fda0: ffff80004f406810 ffff800063699bd0 ffff800063699700 ffff800063699700
>> > fdc0: ffff800063cffe80 ffff200008490868 0000000000000000 ffff80005fd45000
>> > fde0: ffff80006369972c ffff800063699d48 1ffff0000c6d32e5 0000000000000004
>> > fe00: 0000000000000123 000000000000001d 1ffff0000c6d33a9 ffff800063699700
>> > fe20: ffff800063cffe30 ffff200008813c5c ffff800063cffe40 ffff20000811f688
>> > fe40: ffff800063cffea0 ffff20000811f838 0000000000000000 000060006d24d000
>> > fe60: ffffffffffffffff 0000ffff944f3974 0000000000000000 0000000000000015
>> > fe80: 0000000000000123 000000000000005e ffff200009852000 ffff20000811f82c
>> > fea0: 0000000000000000 ffff200008083f70 0000000000000000 0000000000000015
>> > fec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> > fee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> > ff00: 000000000000005e ffffff80ffffffd0 0101010101010101 0000000000000020
>> > ff20: 0000000000000018 0000000056bcb768 0000000000000000 0000ffff945be000
>> > ff40: 0000000000413110 0000ffff944f3950 0000000000000a03 00000000004020f8
>> > ff60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> > ff80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> > ffa0: 0000000000000000 0000ffffc0cc99b0 0000000000401248 0000ffffc0cc99b0
>> > ffc0: 0000ffff944f3974 0000000000000000 0000000000000000 000000000000005e
>> > ffe0: 0000000000000000 0000000000000000 0403030303030100 0807060606060605
>> > Call trace:
>> > Exception stack(0xffff800063cff910 to 0xffff800063cffa40)
>> > f900: ffff20000ab59190 0001000000000000
>> > f920: ffff800063cffb00 ffff20000821a3b8 0000000080000145 000000000000003d
>> > f940: 1fffe4000156b23b ffff800063cffb70 ffff800063cff980 0001000000000000
>> > f960: ffff800063cff9d0 ffff2000081da8e8 ffff800063699ec0 ffff200009df9000
>> > f980: ffff800063cff990 ffff20000891e1e0 ffff800063cff9d0 ffff20000891e23c
>> > f9a0: ffff200009dbfe18 0000000000000040 0000000000000004 0000000000000001
>> > f9c0: 00000000000008ac 00000000000008ac ffff80005e71fb70 0000000000000000
>> > f9e0: 1fffe4000156b243 ffff20000ab59208 0000000000000003 0000000000000040
>> > fa00: 0000000000000000 0000000000000001 0000000000000007 ffff20000ab29000
>> > fa20: 1fffe400014b568c 0000000000000040 0000000000000000 0000000000000002
>> > [<ffff20000821a3b8>] __synchronize_srcu+0x3d0/0x470 kernel/rcu/srcu.c:412
>> > [<ffff20000821a480>] synchronize_srcu+0x28/0x60 kernel/rcu/srcu.c:516
>> > [<ffff2000083ffd20>] __mmu_notifier_release+0x268/0x3e0 mm/mmu_notifier.c:102
>> > [< inline >] mmu_notifier_release ./include/linux/mmu_notifier.h:235
>> > [<ffff2000083aedfc>] exit_mmap+0x21c/0x288 mm/mmap.c:2941
>> > [< inline >] __mmput kernel/fork.c:881
>> > [<ffff20000810caec>] mmput+0xdc/0x2e0 kernel/fork.c:903
>> > [< inline >] exit_mm kernel/exit.c:557
>> > [<ffff20000811db88>] do_exit+0x648/0x2020 kernel/exit.c:865
>> > [<ffff20000811f694>] do_group_exit+0xdc/0x260 kernel/exit.c:982
>> > [< inline >] SYSC_exit_group kernel/exit.c:993
>> > [<ffff20000811f838>] __wake_up_parent+0x0/0x60 kernel/exit.c:991
>> > [<ffff200008083f70>] el0_svc_naked+0x24/0x28 arch/arm64/kernel/entry.S:813
>> > Code: 97feee10 35fff680 17ffff1c d503201f (d4210000)
>> > ---[ end trace b727e9858bfac1ff ]---
>> > Kernel panic - not syncing: Fatal exception
>
> So the theory is that if !sp->running, all of SRCU's queues must be empty.
> So if you are holding ->queue_lock (with irqs disabled) and you see
> !sp->running, and then you enqueue a callback on ->batch_check0, then
> that callback must be the first in the list. And the code preceding
> the WARN_ON() you triggered does in fact check and enqueue shile holding
> ->queue_lock with irqs disabled.
>
> And rcu_batch_queue() does operate FIFO as required. (Otherwise,
> srcu_barrier() would not work.)
>
> There are only three calls to rcu_batch_queue(), and the one involved with
> the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
> ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
> ->batch_check1 to ->batch_done, so nothing should slip in front.
>
> Of course, if ->running were ever set to false with any of ->batch_check0,
> ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
> But srcu_reschedule() sets it to false only if all four batches are
> empty (and checks and sets under ->queue_lock()), and all other cases
> where it is set to false happen at initialization time, and also clear
> out the queues. Of course, if someone raced an init_srcu_struct() with
> either a call_srcu() or synchronize_srcu(), all bets are off. Now,
> mmu_notifier.c does invoke init_srcu_struct() manually, but it does
> so at subsys_initcall() time. Which -might- be after other things are
> happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
> and replace the "static struct srcu_struct srcu" with:
>
> DEFINE_STATIC_SRCU(srcu);
>
> But this might require changing the name -- I vaguely recall some
> strangeness where the names of statically defined per-CPU variables need
> to be globally unique even when static. Easy enough to do, though.
> Might need a similar change to the "srcu" instances defined in vmd.c
> and kvm_host.h -- assuming that this change helps.
>
> Another possibility is that something in SRCU is messing with either the
> queues or the ->running field without holding ->queue_lock. And that does
> seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
> without holding anything. Which seems like it could cause trouble
> if someone else was invoking synchronize_srcu() concurrently. Those
> particular invocations might be safe due to access only by a single
> kthread/workqueue, given that all updates to ->batch_queue are protected
> by ->queue_lock (aside from initialization).
>
> But ->batch_check0 is updated by __synchronize_srcu(), though protected
> by ->queue_lock, and only if ->running is false, and with both the
> check and the update protected by the same ->queue_lock critical section.
> If ->running is false, then the workqueue cannot be running, so it remains
> to see if all other updates to ->batch_check0 are either with ->queue_lock
> held and ->running false on the one hand or from the workqueue handler
> on the other:
>
> srcu_collect_new() updates with ->queue_lock held, but does not check
> ->running. It is invoked only from process_srcu(), which in
> turn is invoked only as a workqueue handler. The work is queued
> from:
>
> call_srcu(), which does so with ->queue_lock held having just
> set ->running to true.
>
> srcu_reschedule(), which invokes it if there are non-empty
> queues. This is invoked from __synchronize_srcu()
> in the case where it has set ->running to true
> after finding the queues empty, which should imply
> no other instances.
>
> It is also invoked from process_srcu(), which is
> invoked only as a workqueue handler. (Yay
> recursive inquiry!)
>
> srcu_advance_batches() updates without locks held. It is invoked as
> follows:
>
> __synchronize_srcu() in the case where ->running was set, which
> as noted before excludes workqueue handlers.
>
> process_srcu() which as noted before is only invoked from
> a workqueue handler.
>
> So an SRCU workqueue is invoked only from a workqueue handler, or from
> some other task that transitioned ->running from false to true while
> holding ->queuelock. There should therefore only be one SRCU workqueue
> per srcu_struct, so this should be safe. Though I hope that it can
> be simplified a bit. :-/
>
> So the only suggestion I have at the moment is static definition of
> the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
>
> Thanx, Paul
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-11 14:25 ` Mathieu Desnoyers
@ 2017-03-11 20:06 ` Paul E. McKenney
0 siblings, 0 replies; 11+ messages in thread
From: Paul E. McKenney @ 2017-03-11 20:06 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Andrey Konovalov, Lai Jiangshan, Josh Triplett, rostedt,
linux-kernel, syzkaller, Dmitry Vyukov, Kostya Serebryany
On Sat, Mar 11, 2017 at 02:25:14PM +0000, Mathieu Desnoyers wrote:
> ----- On Mar 10, 2017, at 5:26 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
>
> > On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
> >> On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
> >> > Hi,
> >> >
> >> > I've got the following error report while fuzzing the kernel with
> >> > syzkaller on an arm64 board.
> >>
> >> This also happened on x86 a few times during fuzzing, however it
> >> wasn't reproducible.
> >>
> >> >
> >> > On linux-next commit 56b8bad5e066c23e8fa273ef5fba50bd3da2ace8 (Mar 8).
> >> >
> >> > A reproducer and .config are attached.
> >> >
> >> > The bug happens while executing the following syzkaller program in a loop.
> >> > While it looks kvm-related, it might be that kvm just stresses the
> >> > srcu subsystem.
> >> >
> >> > mmap(&(0x7f0000000000/0xfff000)=nil, (0xfff000), 0x3, 0x32,
> >> > 0xffffffffffffffff, 0x0)
> >> > r0 = openat$kvm(0xffffffffffffff9c,
> >> > &(0x7f0000a05000)="2f6465762f6b766d00", 0x0, 0x0)
> >> > ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
> >> >
> >> > ------------[ cut here ]------------
> >> > kernel BUG at kernel/rcu/srcu.c:436!
> >
> > This is on v4.10, correct?
>
> No, as stated above, this is on linux-next as of March 8, 2017.
>
> I'm currently looking at the diff of kernel/rcu/srcu.c between v4.10 and
> next-20170310. There are a few changes there.
OK, I must have ended up in the wrong place -- I found line 436 to be
a comment, which caused me to guess a different version.
> One of them is the introduction of the new srcu algorithm with separate
> lock vs unlock counters, which simplifies read lock/unlock by removing the
> sequence counter.
>
> Another change that directly impacts __synchronize_rcu() (near the
> BUG()) is bc138e7a "srcu: Allow mid-boot use of synchronize_srcu()".
>
> Odds are that this change introduce an unforeseen scenario that
> skips awaiting for completion later after boot than expected. It
> might be worthwhile to review it closely once more.
SRCU is under active development, so yes, bugs are likely. I will take
another look.
At the very least, a READ_ONCE() on rcu_scheduler_active would be good.
And that fastpath is removed entirely in later commits not yet pushed out,
so maybe rearranging or combining commits might be helpful. Though it
would of course still be good to identify the bug in case it is something
subtle that persists.
Thanx, Paul
> Thoughts ?
>
> Thanks,
>
> Mathieu
>
> >
> >> > Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
> >> > Modules linked in: meson_drm drm_kms_helper drm dwmac_generic realtek
> >> > dwmac_meson8b stmmac_platform stmmac meson_rng rng_core meson_gxbb_wdt
> >> > ipv6
> >> > CPU: 3 PID: 4250 Comm: a.out Not tainted 4.11.0-rc1-next-20170308-xc2-dirty #3
> >> > Hardware name: Hardkernel ODROID-C2 (DT)
> >> > task: ffff800063699700 task.stack: ffff800063cfc000
> >> > PC is at[< none >] __synchronize_srcu+0x3d0/0x470
> >> > kernel/rcu/srcu.c:412
> >> > LR is at[< none >] __synchronize_srcu+0x130/0x470
> >> > kernel/rcu/srcu.c:434
> >> > pc : [<ffff20000821a3b8>] lr : [<ffff20000821a118>] pstate: 80000145
> >> > sp : ffff800063cffb00
> >> > x29: ffff800063cffb00 x28: ffff80005b1d6e00
> >> > x27: 1fffe4000156b242 x26: ffff800063cffb70
> >> > x25: 1fffe4000156b23b x24: ffff20000ab591d8
> >> > x23: ffff200009dbf000 x22: ffff20000ab591a0
> >> > x21: ffff20000ab59210 x20: ffff800063cffb70
> >> > x19: ffff20000ab59190 x18: 0000000000000a03
> >> > x17: 0000ffff944f3950 x16: ffff20000811f818
> >> > x15: 0000000000000000 x14: 0000000000000007
> >> > x13: 0000000000000002 x12: 0000000000000000
> >> > x11: 0000000000000040 x10: 1fffe400014b568c
> >> > x9 : ffff20000ab29000 x8 : 0000000000000007
> >> > x7 : 0000000000000001 x6 : 0000000000000000
> >> > x5 : 0000000000000040 x4 : 0000000000000003
> >> > x3 : ffff20000ab59208 x2 : 1fffe4000156b243
> >> > x1 : 0000000000000000 x0 : ffff80005e71fb70
> >> >
> >> > Process a.out (pid: 4250, stack limit = 0xffff800063cfc000)
> >> > Stack: (0xffff800063cffb00 to 0xffff800063d00000)
> >> > fb00: ffff800063cffbd0 ffff20000821a480 ffff20000ab59190 1ffff0000b63adc0
> >> > fb20: dfff200000000000 ffff20000ab59190 ffff80004b9a8a00 1ffff000097351bc
> >> > fb40: ffff80004b9a8de0 0000000000000000 ffff800060cad328 ffff80005b1d6e00
> >> > fb60: ffff80004b9a8a00 1ffff000097351bc ffff80004f5e7b70 ffff200008217968
> >> > fb80: ffff800000000001 dead4ead00010001 dfff2000ffffffff ffffffffffffffff
> >> > fba0: ffff20000ab4c4b0 0000000000000000 0000000000000000 ffff200009b0b358
> >> > fbc0: ffff800063cffbc0 ffff800063cffbc0 ffff800063cffbf0 ffff2000083ffd20
> >> > fbe0: ffff80005b1d6e00 0000000000000140 ffff800063cffc50 ffff2000083aedfc
> >> > fc00: ffff80004b9a8a00 ffff80004b9a8a00 ffff80004b9a8d78 0000000000000001
> >> > fc20: 00000000000002a6 ffff80004f406780 ffff80004b9a8aa0 ffff800063699ac8
> >> > fc40: 1ffff0000c6d3359 ffff800063699700 ffff800063cffd20 ffff20000810caec
> >> > fc60: ffff80004b9a8a00 ffff80004b9a8b20 ffff80004b9a8d78 0000000000000001
> >> > fc80: ffff80005ebae2d8 ffff800063699ac8 ffff800063cffca0 ffff20000840fc08
> >> > fca0: ffff800063cffce0 ffff20000843327c ffff80005ebae2d8 ffff80004b9a8a00
> >> > fcc0: ffff80005ebae0f0 ffff200009de8000 ffff800063cffce0 ffff2000084332c4
> >> > fce0: ffff800063cffd20 ffff20000810cc64 ffff80004b9a8a00 ffff80004b9a8a48
> >> > fd00: ffff80004b9a8d78 0000000000000001 ffff800063cffd20 ffff20000810cae0
> >> > fd20: ffff800063cffd60 ffff20000811db88 ffff800063699700 ffff800063699700
> >> > fd40: ffff80004b9a8a00 0000000000000001 00000000000002a6 ffff80004f406780
> >> > fd60: ffff800063cffe40 ffff20000811f694 ffff80004f406780 0000000000000000
> >> > fd80: ffff80004f40681c 0000000000000004 1ffff00009e80d03 1ffff00009e80d02
> >> > fda0: ffff80004f406810 ffff800063699bd0 ffff800063699700 ffff800063699700
> >> > fdc0: ffff800063cffe80 ffff200008490868 0000000000000000 ffff80005fd45000
> >> > fde0: ffff80006369972c ffff800063699d48 1ffff0000c6d32e5 0000000000000004
> >> > fe00: 0000000000000123 000000000000001d 1ffff0000c6d33a9 ffff800063699700
> >> > fe20: ffff800063cffe30 ffff200008813c5c ffff800063cffe40 ffff20000811f688
> >> > fe40: ffff800063cffea0 ffff20000811f838 0000000000000000 000060006d24d000
> >> > fe60: ffffffffffffffff 0000ffff944f3974 0000000000000000 0000000000000015
> >> > fe80: 0000000000000123 000000000000005e ffff200009852000 ffff20000811f82c
> >> > fea0: 0000000000000000 ffff200008083f70 0000000000000000 0000000000000015
> >> > fec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> >> > fee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> >> > ff00: 000000000000005e ffffff80ffffffd0 0101010101010101 0000000000000020
> >> > ff20: 0000000000000018 0000000056bcb768 0000000000000000 0000ffff945be000
> >> > ff40: 0000000000413110 0000ffff944f3950 0000000000000a03 00000000004020f8
> >> > ff60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> >> > ff80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> >> > ffa0: 0000000000000000 0000ffffc0cc99b0 0000000000401248 0000ffffc0cc99b0
> >> > ffc0: 0000ffff944f3974 0000000000000000 0000000000000000 000000000000005e
> >> > ffe0: 0000000000000000 0000000000000000 0403030303030100 0807060606060605
> >> > Call trace:
> >> > Exception stack(0xffff800063cff910 to 0xffff800063cffa40)
> >> > f900: ffff20000ab59190 0001000000000000
> >> > f920: ffff800063cffb00 ffff20000821a3b8 0000000080000145 000000000000003d
> >> > f940: 1fffe4000156b23b ffff800063cffb70 ffff800063cff980 0001000000000000
> >> > f960: ffff800063cff9d0 ffff2000081da8e8 ffff800063699ec0 ffff200009df9000
> >> > f980: ffff800063cff990 ffff20000891e1e0 ffff800063cff9d0 ffff20000891e23c
> >> > f9a0: ffff200009dbfe18 0000000000000040 0000000000000004 0000000000000001
> >> > f9c0: 00000000000008ac 00000000000008ac ffff80005e71fb70 0000000000000000
> >> > f9e0: 1fffe4000156b243 ffff20000ab59208 0000000000000003 0000000000000040
> >> > fa00: 0000000000000000 0000000000000001 0000000000000007 ffff20000ab29000
> >> > fa20: 1fffe400014b568c 0000000000000040 0000000000000000 0000000000000002
> >> > [<ffff20000821a3b8>] __synchronize_srcu+0x3d0/0x470 kernel/rcu/srcu.c:412
> >> > [<ffff20000821a480>] synchronize_srcu+0x28/0x60 kernel/rcu/srcu.c:516
> >> > [<ffff2000083ffd20>] __mmu_notifier_release+0x268/0x3e0 mm/mmu_notifier.c:102
> >> > [< inline >] mmu_notifier_release ./include/linux/mmu_notifier.h:235
> >> > [<ffff2000083aedfc>] exit_mmap+0x21c/0x288 mm/mmap.c:2941
> >> > [< inline >] __mmput kernel/fork.c:881
> >> > [<ffff20000810caec>] mmput+0xdc/0x2e0 kernel/fork.c:903
> >> > [< inline >] exit_mm kernel/exit.c:557
> >> > [<ffff20000811db88>] do_exit+0x648/0x2020 kernel/exit.c:865
> >> > [<ffff20000811f694>] do_group_exit+0xdc/0x260 kernel/exit.c:982
> >> > [< inline >] SYSC_exit_group kernel/exit.c:993
> >> > [<ffff20000811f838>] __wake_up_parent+0x0/0x60 kernel/exit.c:991
> >> > [<ffff200008083f70>] el0_svc_naked+0x24/0x28 arch/arm64/kernel/entry.S:813
> >> > Code: 97feee10 35fff680 17ffff1c d503201f (d4210000)
> >> > ---[ end trace b727e9858bfac1ff ]---
> >> > Kernel panic - not syncing: Fatal exception
> >
> > So the theory is that if !sp->running, all of SRCU's queues must be empty.
> > So if you are holding ->queue_lock (with irqs disabled) and you see
> > !sp->running, and then you enqueue a callback on ->batch_check0, then
> > that callback must be the first in the list. And the code preceding
> > the WARN_ON() you triggered does in fact check and enqueue shile holding
> > ->queue_lock with irqs disabled.
> >
> > And rcu_batch_queue() does operate FIFO as required. (Otherwise,
> > srcu_barrier() would not work.)
> >
> > There are only three calls to rcu_batch_queue(), and the one involved with
> > the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
> > ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
> > ->batch_check1 to ->batch_done, so nothing should slip in front.
> >
> > Of course, if ->running were ever set to false with any of ->batch_check0,
> > ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
> > But srcu_reschedule() sets it to false only if all four batches are
> > empty (and checks and sets under ->queue_lock()), and all other cases
> > where it is set to false happen at initialization time, and also clear
> > out the queues. Of course, if someone raced an init_srcu_struct() with
> > either a call_srcu() or synchronize_srcu(), all bets are off. Now,
> > mmu_notifier.c does invoke init_srcu_struct() manually, but it does
> > so at subsys_initcall() time. Which -might- be after other things are
> > happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
> > and replace the "static struct srcu_struct srcu" with:
> >
> > DEFINE_STATIC_SRCU(srcu);
> >
> > But this might require changing the name -- I vaguely recall some
> > strangeness where the names of statically defined per-CPU variables need
> > to be globally unique even when static. Easy enough to do, though.
> > Might need a similar change to the "srcu" instances defined in vmd.c
> > and kvm_host.h -- assuming that this change helps.
> >
> > Another possibility is that something in SRCU is messing with either the
> > queues or the ->running field without holding ->queue_lock. And that does
> > seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
> > without holding anything. Which seems like it could cause trouble
> > if someone else was invoking synchronize_srcu() concurrently. Those
> > particular invocations might be safe due to access only by a single
> > kthread/workqueue, given that all updates to ->batch_queue are protected
> > by ->queue_lock (aside from initialization).
> >
> > But ->batch_check0 is updated by __synchronize_srcu(), though protected
> > by ->queue_lock, and only if ->running is false, and with both the
> > check and the update protected by the same ->queue_lock critical section.
> > If ->running is false, then the workqueue cannot be running, so it remains
> > to see if all other updates to ->batch_check0 are either with ->queue_lock
> > held and ->running false on the one hand or from the workqueue handler
> > on the other:
> >
> > srcu_collect_new() updates with ->queue_lock held, but does not check
> > ->running. It is invoked only from process_srcu(), which in
> > turn is invoked only as a workqueue handler. The work is queued
> > from:
> >
> > call_srcu(), which does so with ->queue_lock held having just
> > set ->running to true.
> >
> > srcu_reschedule(), which invokes it if there are non-empty
> > queues. This is invoked from __synchronize_srcu()
> > in the case where it has set ->running to true
> > after finding the queues empty, which should imply
> > no other instances.
> >
> > It is also invoked from process_srcu(), which is
> > invoked only as a workqueue handler. (Yay
> > recursive inquiry!)
> >
> > srcu_advance_batches() updates without locks held. It is invoked as
> > follows:
> >
> > __synchronize_srcu() in the case where ->running was set, which
> > as noted before excludes workqueue handlers.
> >
> > process_srcu() which as noted before is only invoked from
> > a workqueue handler.
> >
> > So an SRCU workqueue is invoked only from a workqueue handler, or from
> > some other task that transitioned ->running from false to true while
> > holding ->queuelock. There should therefore only be one SRCU workqueue
> > per srcu_struct, so this should be safe. Though I hope that it can
> > be simplified a bit. :-/
> >
> > So the only suggestion I have at the moment is static definition of
> > the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
> >
> > Thanx, Paul
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-10 22:26 ` Paul E. McKenney
2017-03-11 14:25 ` Mathieu Desnoyers
@ 2017-03-14 7:47 ` Lance Roy
2017-03-14 16:21 ` Paul E. McKenney
1 sibling, 1 reply; 11+ messages in thread
From: Lance Roy @ 2017-03-14 7:47 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Andrey Konovalov, Lai Jiangshan, Josh Triplett, Steven Rostedt,
Mathieu Desnoyers, LKML, syzkaller, Dmitry Vyukov,
Kostya Serebryany
I am not sure how the rcu_scheduler_active changes in __synchronize_srcu work,
but there seem to be a few problems in them. First,
"if (done && likely(!driving))" on line 453 doesn't appear to ever happen,
as driving doesn't get set to false when srcu_reschedule is called. This seems
like it could cause a race condition if another thread notices that ->running is
false, adds itself to the queue, set ->running to true, and starts on its own
grace period before the first thread acquires the lock again on line 469. Then
the first thread will then acquire the lock, set running to false, and release
the lock, resulting in an invalid state where ->running is false but the second
thread is still trying to finish its grace period.
Second, the while loop on line 455 seems to violate to rule that ->running
shouldn't be false when there are entries in the queue. If a second thread adds
itself to the queue while the first thread is driving SRCU inside that loop, and
then the first thread finishes its own grace period and quits the loop, it will
set ->running to false even though there is still a thread on the queue.
The second issue requires rcu_scheduler_active to be RCU_SCHEDULER_INIT to
occur, and as I don't what the assumptions during RCU_SCHEDULER_INIT are I don't
know if it is actually a problem, but the first issue looks like it could occur
at any time.
Thanks,
Lance
On Fri, 10 Mar 2017 14:26:09 -0800
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
> > On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com>
> > wrote:
> > > Kernel panic - not syncing: Fatal exception
>
> So the theory is that if !sp->running, all of SRCU's queues must be empty.
> So if you are holding ->queue_lock (with irqs disabled) and you see
> !sp->running, and then you enqueue a callback on ->batch_check0, then
> that callback must be the first in the list. And the code preceding
> the WARN_ON() you triggered does in fact check and enqueue shile holding
> ->queue_lock with irqs disabled.
>
> And rcu_batch_queue() does operate FIFO as required. (Otherwise,
> srcu_barrier() would not work.)
>
> There are only three calls to rcu_batch_queue(), and the one involved with
> the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
> ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
> ->batch_check1 to ->batch_done, so nothing should slip in front.
>
> Of course, if ->running were ever set to false with any of ->batch_check0,
> ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
> But srcu_reschedule() sets it to false only if all four batches are
> empty (and checks and sets under ->queue_lock()), and all other cases
> where it is set to false happen at initialization time, and also clear
> out the queues. Of course, if someone raced an init_srcu_struct() with
> either a call_srcu() or synchronize_srcu(), all bets are off. Now,
> mmu_notifier.c does invoke init_srcu_struct() manually, but it does
> so at subsys_initcall() time. Which -might- be after other things are
> happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
> and replace the "static struct srcu_struct srcu" with:
>
> DEFINE_STATIC_SRCU(srcu);
>
> But this might require changing the name -- I vaguely recall some
> strangeness where the names of statically defined per-CPU variables need
> to be globally unique even when static. Easy enough to do, though.
> Might need a similar change to the "srcu" instances defined in vmd.c
> and kvm_host.h -- assuming that this change helps.
>
> Another possibility is that something in SRCU is messing with either the
> queues or the ->running field without holding ->queue_lock. And that does
> seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
> without holding anything. Which seems like it could cause trouble
> if someone else was invoking synchronize_srcu() concurrently. Those
> particular invocations might be safe due to access only by a single
> kthread/workqueue, given that all updates to ->batch_queue are protected
> by ->queue_lock (aside from initialization).
>
> But ->batch_check0 is updated by __synchronize_srcu(), though protected
> by ->queue_lock, and only if ->running is false, and with both the
> check and the update protected by the same ->queue_lock critical section.
> If ->running is false, then the workqueue cannot be running, so it remains
> to see if all other updates to ->batch_check0 are either with ->queue_lock
> held and ->running false on the one hand or from the workqueue handler
> on the other:
>
> srcu_collect_new() updates with ->queue_lock held, but does not check
> ->running. It is invoked only from process_srcu(), which in
> turn is invoked only as a workqueue handler. The work is queued
> from:
>
> call_srcu(), which does so with ->queue_lock held having just
> set ->running to true.
>
> srcu_reschedule(), which invokes it if there are non-empty
> queues. This is invoked from __synchronize_srcu()
> in the case where it has set ->running to true
> after finding the queues empty, which should imply
> no other instances.
>
> It is also invoked from process_srcu(), which is
> invoked only as a workqueue handler. (Yay
> recursive inquiry!)
>
> srcu_advance_batches() updates without locks held. It is invoked as
> follows:
>
> __synchronize_srcu() in the case where ->running was set, which
> as noted before excludes workqueue handlers.
>
> process_srcu() which as noted before is only invoked from
> a workqueue handler.
>
> So an SRCU workqueue is invoked only from a workqueue handler, or from
> some other task that transitioned ->running from false to true while
> holding ->queuelock. There should therefore only be one SRCU workqueue
> per srcu_struct, so this should be safe. Though I hope that it can
> be simplified a bit. :-/
>
> So the only suggestion I have at the moment is static definition of
> the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
>
> Thanx, Paul
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-14 7:47 ` Lance Roy
@ 2017-03-14 16:21 ` Paul E. McKenney
2017-03-27 12:36 ` Dmitry Vyukov
0 siblings, 1 reply; 11+ messages in thread
From: Paul E. McKenney @ 2017-03-14 16:21 UTC (permalink / raw)
To: Lance Roy
Cc: Andrey Konovalov, Lai Jiangshan, Josh Triplett, Steven Rostedt,
Mathieu Desnoyers, LKML, syzkaller, Dmitry Vyukov,
Kostya Serebryany
On Tue, Mar 14, 2017 at 12:47:02AM -0700, Lance Roy wrote:
> I am not sure how the rcu_scheduler_active changes in __synchronize_srcu work,
> but there seem to be a few problems in them. First,
> "if (done && likely(!driving))" on line 453 doesn't appear to ever happen,
> as driving doesn't get set to false when srcu_reschedule is called. This seems
> like it could cause a race condition if another thread notices that ->running is
> false, adds itself to the queue, set ->running to true, and starts on its own
> grace period before the first thread acquires the lock again on line 469. Then
> the first thread will then acquire the lock, set running to false, and release
> the lock, resulting in an invalid state where ->running is false but the second
> thread is still trying to finish its grace period.
>
> Second, the while loop on line 455 seems to violate to rule that ->running
> shouldn't be false when there are entries in the queue. If a second thread adds
> itself to the queue while the first thread is driving SRCU inside that loop, and
> then the first thread finishes its own grace period and quits the loop, it will
> set ->running to false even though there is still a thread on the queue.
>
> The second issue requires rcu_scheduler_active to be RCU_SCHEDULER_INIT to
> occur, and as I don't what the assumptions during RCU_SCHEDULER_INIT are I don't
> know if it is actually a problem, but the first issue looks like it could occur
> at any time.
Thank you for looking into this!
I determined that my patch-order strategy was flawed, as it required
me to rewrite the mid-boot functionality several times. I therefore
removed the mid-boot commits. I will add them in later, but they will
use a rather different approach based on a grace-period sequence number
similar to that used by the expedited grace periods.
Which should also teach me to be less aggressive about pushing new code
to -next. For a few weeks, anyway. ;-)
Thanx, Paul
> Thanks,
> Lance
>
> On Fri, 10 Mar 2017 14:26:09 -0800
> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> > On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
> > > On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com>
> > > wrote:
> > > > Kernel panic - not syncing: Fatal exception
> >
> > So the theory is that if !sp->running, all of SRCU's queues must be empty.
> > So if you are holding ->queue_lock (with irqs disabled) and you see
> > !sp->running, and then you enqueue a callback on ->batch_check0, then
> > that callback must be the first in the list. And the code preceding
> > the WARN_ON() you triggered does in fact check and enqueue shile holding
> > ->queue_lock with irqs disabled.
> >
> > And rcu_batch_queue() does operate FIFO as required. (Otherwise,
> > srcu_barrier() would not work.)
> >
> > There are only three calls to rcu_batch_queue(), and the one involved with
> > the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
> > ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
> > ->batch_check1 to ->batch_done, so nothing should slip in front.
> >
> > Of course, if ->running were ever set to false with any of ->batch_check0,
> > ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
> > But srcu_reschedule() sets it to false only if all four batches are
> > empty (and checks and sets under ->queue_lock()), and all other cases
> > where it is set to false happen at initialization time, and also clear
> > out the queues. Of course, if someone raced an init_srcu_struct() with
> > either a call_srcu() or synchronize_srcu(), all bets are off. Now,
> > mmu_notifier.c does invoke init_srcu_struct() manually, but it does
> > so at subsys_initcall() time. Which -might- be after other things are
> > happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
> > and replace the "static struct srcu_struct srcu" with:
>
> >
> > DEFINE_STATIC_SRCU(srcu);
> >
> > But this might require changing the name -- I vaguely recall some
> > strangeness where the names of statically defined per-CPU variables need
> > to be globally unique even when static. Easy enough to do, though.
> > Might need a similar change to the "srcu" instances defined in vmd.c
> > and kvm_host.h -- assuming that this change helps.
> >
> > Another possibility is that something in SRCU is messing with either the
> > queues or the ->running field without holding ->queue_lock. And that does
> > seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
> > without holding anything. Which seems like it could cause trouble
> > if someone else was invoking synchronize_srcu() concurrently. Those
> > particular invocations might be safe due to access only by a single
> > kthread/workqueue, given that all updates to ->batch_queue are protected
> > by ->queue_lock (aside from initialization).
> >
> > But ->batch_check0 is updated by __synchronize_srcu(), though protected
> > by ->queue_lock, and only if ->running is false, and with both the
> > check and the update protected by the same ->queue_lock critical section.
> > If ->running is false, then the workqueue cannot be running, so it remains
> > to see if all other updates to ->batch_check0 are either with ->queue_lock
> > held and ->running false on the one hand or from the workqueue handler
> > on the other:
> >
> > srcu_collect_new() updates with ->queue_lock held, but does not check
> > ->running. It is invoked only from process_srcu(), which in
> > turn is invoked only as a workqueue handler. The work is queued
> > from:
> >
> > call_srcu(), which does so with ->queue_lock held having just
> > set ->running to true.
> >
> > srcu_reschedule(), which invokes it if there are non-empty
> > queues. This is invoked from __synchronize_srcu()
> > in the case where it has set ->running to true
> > after finding the queues empty, which should imply
> > no other instances.
> >
> > It is also invoked from process_srcu(), which is
> > invoked only as a workqueue handler. (Yay
> > recursive inquiry!)
> >
> > srcu_advance_batches() updates without locks held. It is invoked as
> > follows:
> >
> > __synchronize_srcu() in the case where ->running was set, which
> > as noted before excludes workqueue handlers.
> >
> > process_srcu() which as noted before is only invoked from
> > a workqueue handler.
> >
> > So an SRCU workqueue is invoked only from a workqueue handler, or from
> > some other task that transitioned ->running from false to true while
> > holding ->queuelock. There should therefore only be one SRCU workqueue
> > per srcu_struct, so this should be safe. Though I hope that it can
> > be simplified a bit. :-/
> >
> > So the only suggestion I have at the moment is static definition of
> > the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
> >
> > Thanx, Paul
> >
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-14 16:21 ` Paul E. McKenney
@ 2017-03-27 12:36 ` Dmitry Vyukov
2017-03-27 14:16 ` Paul E. McKenney
0 siblings, 1 reply; 11+ messages in thread
From: Dmitry Vyukov @ 2017-03-27 12:36 UTC (permalink / raw)
To: Paul McKenney
Cc: Lance Roy, Andrey Konovalov, Lai Jiangshan, Josh Triplett,
Steven Rostedt, Mathieu Desnoyers, LKML, syzkaller,
Kostya Serebryany
On Tue, Mar 14, 2017 at 5:21 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Tue, Mar 14, 2017 at 12:47:02AM -0700, Lance Roy wrote:
>> I am not sure how the rcu_scheduler_active changes in __synchronize_srcu work,
>> but there seem to be a few problems in them. First,
>> "if (done && likely(!driving))" on line 453 doesn't appear to ever happen,
>> as driving doesn't get set to false when srcu_reschedule is called. This seems
>> like it could cause a race condition if another thread notices that ->running is
>> false, adds itself to the queue, set ->running to true, and starts on its own
>> grace period before the first thread acquires the lock again on line 469. Then
>> the first thread will then acquire the lock, set running to false, and release
>> the lock, resulting in an invalid state where ->running is false but the second
>> thread is still trying to finish its grace period.
>>
>> Second, the while loop on line 455 seems to violate to rule that ->running
>> shouldn't be false when there are entries in the queue. If a second thread adds
>> itself to the queue while the first thread is driving SRCU inside that loop, and
>> then the first thread finishes its own grace period and quits the loop, it will
>> set ->running to false even though there is still a thread on the queue.
>>
>> The second issue requires rcu_scheduler_active to be RCU_SCHEDULER_INIT to
>> occur, and as I don't what the assumptions during RCU_SCHEDULER_INIT are I don't
>> know if it is actually a problem, but the first issue looks like it could occur
>> at any time.
>
> Thank you for looking into this!
>
> I determined that my patch-order strategy was flawed, as it required
> me to rewrite the mid-boot functionality several times. I therefore
> removed the mid-boot commits. I will add them in later, but they will
> use a rather different approach based on a grace-period sequence number
> similar to that used by the expedited grace periods.
>
> Which should also teach me to be less aggressive about pushing new code
> to -next. For a few weeks, anyway. ;-)
>
> Thanx, Paul
>
>> Thanks,
>> Lance
>>
>> On Fri, 10 Mar 2017 14:26:09 -0800
>> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
>> > On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
>> > > On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com>
>> > > wrote:
>> > > > Kernel panic - not syncing: Fatal exception
>> >
>> > So the theory is that if !sp->running, all of SRCU's queues must be empty.
>> > So if you are holding ->queue_lock (with irqs disabled) and you see
>> > !sp->running, and then you enqueue a callback on ->batch_check0, then
>> > that callback must be the first in the list. And the code preceding
>> > the WARN_ON() you triggered does in fact check and enqueue shile holding
>> > ->queue_lock with irqs disabled.
>> >
>> > And rcu_batch_queue() does operate FIFO as required. (Otherwise,
>> > srcu_barrier() would not work.)
>> >
>> > There are only three calls to rcu_batch_queue(), and the one involved with
>> > the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
>> > ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
>> > ->batch_check1 to ->batch_done, so nothing should slip in front.
>> >
>> > Of course, if ->running were ever set to false with any of ->batch_check0,
>> > ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
>> > But srcu_reschedule() sets it to false only if all four batches are
>> > empty (and checks and sets under ->queue_lock()), and all other cases
>> > where it is set to false happen at initialization time, and also clear
>> > out the queues. Of course, if someone raced an init_srcu_struct() with
>> > either a call_srcu() or synchronize_srcu(), all bets are off. Now,
>> > mmu_notifier.c does invoke init_srcu_struct() manually, but it does
>> > so at subsys_initcall() time. Which -might- be after other things are
>> > happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
>> > and replace the "static struct srcu_struct srcu" with:
>>
>> >
>> > DEFINE_STATIC_SRCU(srcu);
>> >
>> > But this might require changing the name -- I vaguely recall some
>> > strangeness where the names of statically defined per-CPU variables need
>> > to be globally unique even when static. Easy enough to do, though.
>> > Might need a similar change to the "srcu" instances defined in vmd.c
>> > and kvm_host.h -- assuming that this change helps.
>> >
>> > Another possibility is that something in SRCU is messing with either the
>> > queues or the ->running field without holding ->queue_lock. And that does
>> > seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
>> > without holding anything. Which seems like it could cause trouble
>> > if someone else was invoking synchronize_srcu() concurrently. Those
>> > particular invocations might be safe due to access only by a single
>> > kthread/workqueue, given that all updates to ->batch_queue are protected
>> > by ->queue_lock (aside from initialization).
>> >
>> > But ->batch_check0 is updated by __synchronize_srcu(), though protected
>> > by ->queue_lock, and only if ->running is false, and with both the
>> > check and the update protected by the same ->queue_lock critical section.
>> > If ->running is false, then the workqueue cannot be running, so it remains
>> > to see if all other updates to ->batch_check0 are either with ->queue_lock
>> > held and ->running false on the one hand or from the workqueue handler
>> > on the other:
>> >
>> > srcu_collect_new() updates with ->queue_lock held, but does not check
>> > ->running. It is invoked only from process_srcu(), which in
>> > turn is invoked only as a workqueue handler. The work is queued
>> > from:
>> >
>> > call_srcu(), which does so with ->queue_lock held having just
>> > set ->running to true.
>> >
>> > srcu_reschedule(), which invokes it if there are non-empty
>> > queues. This is invoked from __synchronize_srcu()
>> > in the case where it has set ->running to true
>> > after finding the queues empty, which should imply
>> > no other instances.
>> >
>> > It is also invoked from process_srcu(), which is
>> > invoked only as a workqueue handler. (Yay
>> > recursive inquiry!)
>> >
>> > srcu_advance_batches() updates without locks held. It is invoked as
>> > follows:
>> >
>> > __synchronize_srcu() in the case where ->running was set, which
>> > as noted before excludes workqueue handlers.
>> >
>> > process_srcu() which as noted before is only invoked from
>> > a workqueue handler.
>> >
>> > So an SRCU workqueue is invoked only from a workqueue handler, or from
>> > some other task that transitioned ->running from false to true while
>> > holding ->queuelock. There should therefore only be one SRCU workqueue
>> > per srcu_struct, so this should be safe. Though I hope that it can
>> > be simplified a bit. :-/
>> >
>> > So the only suggestion I have at the moment is static definition of
>> > the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
>> >
>> > Thanx, Paul
This happened on linux-next/65b2dc38291f9f27e5ec3b804d6eb3b5f79a3ce4
and may be related.
The report says that srcu subsystem still uses the srcu object after
it has been freed. It can be a kvm fault as well.
==================================================================
BUG: KASAN: use-after-free in debug_spin_unlock
kernel/locking/spinlock_debug.c:97 [inline]
BUG: KASAN: use-after-free in do_raw_spin_unlock+0x2ea/0x320
kernel/locking/spinlock_debug.c:134
Read of size 4 at addr ffff88014158a564 by task kworker/1:1/5712
CPU: 1 PID: 5712 Comm: kworker/1:1 Not tainted 4.11.0-rc3-next-20170324+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 01/01/2011
Workqueue: events_power_efficient process_srcu
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x2fb/0x40f lib/dump_stack.c:52
print_address_description+0x7f/0x260 mm/kasan/report.c:250
kasan_report_error mm/kasan/report.c:349 [inline]
kasan_report.part.3+0x21f/0x310 mm/kasan/report.c:372
kasan_report mm/kasan/report.c:392 [inline]
__asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:392
debug_spin_unlock kernel/locking/spinlock_debug.c:97 [inline]
do_raw_spin_unlock+0x2ea/0x320 kernel/locking/spinlock_debug.c:134
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:167 [inline]
_raw_spin_unlock_irq+0x22/0x70 kernel/locking/spinlock.c:199
spin_unlock_irq include/linux/spinlock.h:349 [inline]
srcu_reschedule+0x1a1/0x260 kernel/rcu/srcu.c:582
process_srcu+0x63c/0x11c0 kernel/rcu/srcu.c:600
process_one_work+0xac0/0x1b00 kernel/workqueue.c:2097
worker_thread+0x1b4/0x1300 kernel/workqueue.c:2231
kthread+0x36c/0x440 kernel/kthread.c:231
ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430
Allocated by task 20961:
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:515
set_track mm/kasan/kasan.c:527 [inline]
kasan_kmalloc+0xaa/0xd0 mm/kasan/kasan.c:619
kmem_cache_alloc_trace+0x10b/0x670 mm/slab.c:3635
kmalloc include/linux/slab.h:492 [inline]
kzalloc include/linux/slab.h:665 [inline]
kvm_arch_alloc_vm include/linux/kvm_host.h:773 [inline]
kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:610 [inline]
kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3161 [inline]
kvm_dev_ioctl+0x1bf/0x1460 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3205
vfs_ioctl fs/ioctl.c:45 [inline]
do_vfs_ioctl+0x1bf/0x1780 fs/ioctl.c:685
SYSC_ioctl fs/ioctl.c:700 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
entry_SYSCALL_64_fastpath+0x1f/0xbe
Freed by task 20960:
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:515
set_track mm/kasan/kasan.c:527 [inline]
kasan_slab_free+0x6e/0xc0 mm/kasan/kasan.c:592
__cache_free mm/slab.c:3511 [inline]
kfree+0xd3/0x250 mm/slab.c:3828
kvm_arch_free_vm include/linux/kvm_host.h:778 [inline]
kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:732 [inline]
kvm_put_kvm+0x709/0x9a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:747
kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:758
__fput+0x332/0x800 fs/file_table.c:209
____fput+0x15/0x20 fs/file_table.c:245
task_work_run+0x197/0x260 kernel/task_work.c:116
exit_task_work include/linux/task_work.h:21 [inline]
do_exit+0x1a53/0x27c0 kernel/exit.c:878
do_group_exit+0x149/0x420 kernel/exit.c:982
get_signal+0x7d8/0x1820 kernel/signal.c:2318
do_signal+0xd2/0x2190 arch/x86/kernel/signal.c:808
exit_to_usermode_loop+0x21c/0x2d0 arch/x86/entry/common.c:157
prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
syscall_return_slowpath+0x4d3/0x570 arch/x86/entry/common.c:263
entry_SYSCALL_64_fastpath+0xbc/0xbe
The buggy address belongs to the object at ffff880141581640
which belongs to the cache kmalloc-65536 of size 65536
The buggy address is located 36644 bytes inside of
65536-byte region [ffff880141581640, ffff880141591640)
The buggy address belongs to the page:
page:ffffea000464b400 count:1 mapcount:0 mapping:ffff880141581640
index:0x0 compound_mapcount: 0
flags: 0x200000000008100(slab|head)
raw: 0200000000008100 ffff880141581640 0000000000000000 0000000100000001
raw: ffffea00064b1f20 ffffea000640fa20 ffff8801db800d00
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88014158a400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88014158a480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88014158a500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88014158a580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88014158a600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-27 12:36 ` Dmitry Vyukov
@ 2017-03-27 14:16 ` Paul E. McKenney
2017-03-27 14:51 ` Dmitry Vyukov
0 siblings, 1 reply; 11+ messages in thread
From: Paul E. McKenney @ 2017-03-27 14:16 UTC (permalink / raw)
To: Dmitry Vyukov
Cc: Lance Roy, Andrey Konovalov, Lai Jiangshan, Josh Triplett,
Steven Rostedt, Mathieu Desnoyers, LKML, syzkaller,
Kostya Serebryany
On Mon, Mar 27, 2017 at 02:36:35PM +0200, Dmitry Vyukov wrote:
> On Tue, Mar 14, 2017 at 5:21 PM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> > On Tue, Mar 14, 2017 at 12:47:02AM -0700, Lance Roy wrote:
> >> I am not sure how the rcu_scheduler_active changes in __synchronize_srcu work,
> >> but there seem to be a few problems in them. First,
> >> "if (done && likely(!driving))" on line 453 doesn't appear to ever happen,
> >> as driving doesn't get set to false when srcu_reschedule is called. This seems
> >> like it could cause a race condition if another thread notices that ->running is
> >> false, adds itself to the queue, set ->running to true, and starts on its own
> >> grace period before the first thread acquires the lock again on line 469. Then
> >> the first thread will then acquire the lock, set running to false, and release
> >> the lock, resulting in an invalid state where ->running is false but the second
> >> thread is still trying to finish its grace period.
> >>
> >> Second, the while loop on line 455 seems to violate to rule that ->running
> >> shouldn't be false when there are entries in the queue. If a second thread adds
> >> itself to the queue while the first thread is driving SRCU inside that loop, and
> >> then the first thread finishes its own grace period and quits the loop, it will
> >> set ->running to false even though there is still a thread on the queue.
> >>
> >> The second issue requires rcu_scheduler_active to be RCU_SCHEDULER_INIT to
> >> occur, and as I don't what the assumptions during RCU_SCHEDULER_INIT are I don't
> >> know if it is actually a problem, but the first issue looks like it could occur
> >> at any time.
> >
> > Thank you for looking into this!
> >
> > I determined that my patch-order strategy was flawed, as it required
> > me to rewrite the mid-boot functionality several times. I therefore
> > removed the mid-boot commits. I will add them in later, but they will
> > use a rather different approach based on a grace-period sequence number
> > similar to that used by the expedited grace periods.
> >
> > Which should also teach me to be less aggressive about pushing new code
> > to -next. For a few weeks, anyway. ;-)
> >
> > Thanx, Paul
> >
> >> Thanks,
> >> Lance
> >>
> >> On Fri, 10 Mar 2017 14:26:09 -0800
> >> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> >> > On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
> >> > > On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com>
> >> > > wrote:
> >> > > > Kernel panic - not syncing: Fatal exception
> >> >
> >> > So the theory is that if !sp->running, all of SRCU's queues must be empty.
> >> > So if you are holding ->queue_lock (with irqs disabled) and you see
> >> > !sp->running, and then you enqueue a callback on ->batch_check0, then
> >> > that callback must be the first in the list. And the code preceding
> >> > the WARN_ON() you triggered does in fact check and enqueue shile holding
> >> > ->queue_lock with irqs disabled.
> >> >
> >> > And rcu_batch_queue() does operate FIFO as required. (Otherwise,
> >> > srcu_barrier() would not work.)
> >> >
> >> > There are only three calls to rcu_batch_queue(), and the one involved with
> >> > the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
> >> > ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
> >> > ->batch_check1 to ->batch_done, so nothing should slip in front.
> >> >
> >> > Of course, if ->running were ever set to false with any of ->batch_check0,
> >> > ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
> >> > But srcu_reschedule() sets it to false only if all four batches are
> >> > empty (and checks and sets under ->queue_lock()), and all other cases
> >> > where it is set to false happen at initialization time, and also clear
> >> > out the queues. Of course, if someone raced an init_srcu_struct() with
> >> > either a call_srcu() or synchronize_srcu(), all bets are off. Now,
> >> > mmu_notifier.c does invoke init_srcu_struct() manually, but it does
> >> > so at subsys_initcall() time. Which -might- be after other things are
> >> > happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
> >> > and replace the "static struct srcu_struct srcu" with:
> >>
> >> >
> >> > DEFINE_STATIC_SRCU(srcu);
> >> >
> >> > But this might require changing the name -- I vaguely recall some
> >> > strangeness where the names of statically defined per-CPU variables need
> >> > to be globally unique even when static. Easy enough to do, though.
> >> > Might need a similar change to the "srcu" instances defined in vmd.c
> >> > and kvm_host.h -- assuming that this change helps.
> >> >
> >> > Another possibility is that something in SRCU is messing with either the
> >> > queues or the ->running field without holding ->queue_lock. And that does
> >> > seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
> >> > without holding anything. Which seems like it could cause trouble
> >> > if someone else was invoking synchronize_srcu() concurrently. Those
> >> > particular invocations might be safe due to access only by a single
> >> > kthread/workqueue, given that all updates to ->batch_queue are protected
> >> > by ->queue_lock (aside from initialization).
> >> >
> >> > But ->batch_check0 is updated by __synchronize_srcu(), though protected
> >> > by ->queue_lock, and only if ->running is false, and with both the
> >> > check and the update protected by the same ->queue_lock critical section.
> >> > If ->running is false, then the workqueue cannot be running, so it remains
> >> > to see if all other updates to ->batch_check0 are either with ->queue_lock
> >> > held and ->running false on the one hand or from the workqueue handler
> >> > on the other:
> >> >
> >> > srcu_collect_new() updates with ->queue_lock held, but does not check
> >> > ->running. It is invoked only from process_srcu(), which in
> >> > turn is invoked only as a workqueue handler. The work is queued
> >> > from:
> >> >
> >> > call_srcu(), which does so with ->queue_lock held having just
> >> > set ->running to true.
> >> >
> >> > srcu_reschedule(), which invokes it if there are non-empty
> >> > queues. This is invoked from __synchronize_srcu()
> >> > in the case where it has set ->running to true
> >> > after finding the queues empty, which should imply
> >> > no other instances.
> >> >
> >> > It is also invoked from process_srcu(), which is
> >> > invoked only as a workqueue handler. (Yay
> >> > recursive inquiry!)
> >> >
> >> > srcu_advance_batches() updates without locks held. It is invoked as
> >> > follows:
> >> >
> >> > __synchronize_srcu() in the case where ->running was set, which
> >> > as noted before excludes workqueue handlers.
> >> >
> >> > process_srcu() which as noted before is only invoked from
> >> > a workqueue handler.
> >> >
> >> > So an SRCU workqueue is invoked only from a workqueue handler, or from
> >> > some other task that transitioned ->running from false to true while
> >> > holding ->queuelock. There should therefore only be one SRCU workqueue
> >> > per srcu_struct, so this should be safe. Though I hope that it can
> >> > be simplified a bit. :-/
> >> >
> >> > So the only suggestion I have at the moment is static definition of
> >> > the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
> >> >
> >> > Thanx, Paul
>
>
>
> This happened on linux-next/65b2dc38291f9f27e5ec3b804d6eb3b5f79a3ce4
> and may be related.
> The report says that srcu subsystem still uses the srcu object after
> it has been freed. It can be a kvm fault as well.
Hmmm... I am not seeing a call to cleanup_srcu_struct() for the
->track_srcu field of the kvm_page_track_notifier_head structure.
Or is this structure immortal, so that it is never cleaned up?
Or am I just blind this morning?
In any case, freeing the kvm_page_track_notifier_head structure
without first invoking cleanup_srcu_struct() on its ->track_srcu
srcu_struct field could easily result in a use-after-free bug.
Thanx, Paul
> ==================================================================
> BUG: KASAN: use-after-free in debug_spin_unlock
> kernel/locking/spinlock_debug.c:97 [inline]
> BUG: KASAN: use-after-free in do_raw_spin_unlock+0x2ea/0x320
> kernel/locking/spinlock_debug.c:134
> Read of size 4 at addr ffff88014158a564 by task kworker/1:1/5712
>
> CPU: 1 PID: 5712 Comm: kworker/1:1 Not tainted 4.11.0-rc3-next-20170324+ #1
> Hardware name: Google Google Compute Engine/Google Compute Engine,
> BIOS Google 01/01/2011
> Workqueue: events_power_efficient process_srcu
> Call Trace:
> __dump_stack lib/dump_stack.c:16 [inline]
> dump_stack+0x2fb/0x40f lib/dump_stack.c:52
> print_address_description+0x7f/0x260 mm/kasan/report.c:250
> kasan_report_error mm/kasan/report.c:349 [inline]
> kasan_report.part.3+0x21f/0x310 mm/kasan/report.c:372
> kasan_report mm/kasan/report.c:392 [inline]
> __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:392
> debug_spin_unlock kernel/locking/spinlock_debug.c:97 [inline]
> do_raw_spin_unlock+0x2ea/0x320 kernel/locking/spinlock_debug.c:134
> __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:167 [inline]
> _raw_spin_unlock_irq+0x22/0x70 kernel/locking/spinlock.c:199
> spin_unlock_irq include/linux/spinlock.h:349 [inline]
> srcu_reschedule+0x1a1/0x260 kernel/rcu/srcu.c:582
> process_srcu+0x63c/0x11c0 kernel/rcu/srcu.c:600
> process_one_work+0xac0/0x1b00 kernel/workqueue.c:2097
> worker_thread+0x1b4/0x1300 kernel/workqueue.c:2231
> kthread+0x36c/0x440 kernel/kthread.c:231
> ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430
>
> Allocated by task 20961:
> save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
> save_stack+0x43/0xd0 mm/kasan/kasan.c:515
> set_track mm/kasan/kasan.c:527 [inline]
> kasan_kmalloc+0xaa/0xd0 mm/kasan/kasan.c:619
> kmem_cache_alloc_trace+0x10b/0x670 mm/slab.c:3635
> kmalloc include/linux/slab.h:492 [inline]
> kzalloc include/linux/slab.h:665 [inline]
> kvm_arch_alloc_vm include/linux/kvm_host.h:773 [inline]
> kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:610 [inline]
> kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3161 [inline]
> kvm_dev_ioctl+0x1bf/0x1460 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3205
> vfs_ioctl fs/ioctl.c:45 [inline]
> do_vfs_ioctl+0x1bf/0x1780 fs/ioctl.c:685
> SYSC_ioctl fs/ioctl.c:700 [inline]
> SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
> entry_SYSCALL_64_fastpath+0x1f/0xbe
>
> Freed by task 20960:
> save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
> save_stack+0x43/0xd0 mm/kasan/kasan.c:515
> set_track mm/kasan/kasan.c:527 [inline]
> kasan_slab_free+0x6e/0xc0 mm/kasan/kasan.c:592
> __cache_free mm/slab.c:3511 [inline]
> kfree+0xd3/0x250 mm/slab.c:3828
> kvm_arch_free_vm include/linux/kvm_host.h:778 [inline]
> kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:732 [inline]
> kvm_put_kvm+0x709/0x9a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:747
> kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:758
> __fput+0x332/0x800 fs/file_table.c:209
> ____fput+0x15/0x20 fs/file_table.c:245
> task_work_run+0x197/0x260 kernel/task_work.c:116
> exit_task_work include/linux/task_work.h:21 [inline]
> do_exit+0x1a53/0x27c0 kernel/exit.c:878
> do_group_exit+0x149/0x420 kernel/exit.c:982
> get_signal+0x7d8/0x1820 kernel/signal.c:2318
> do_signal+0xd2/0x2190 arch/x86/kernel/signal.c:808
> exit_to_usermode_loop+0x21c/0x2d0 arch/x86/entry/common.c:157
> prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
> syscall_return_slowpath+0x4d3/0x570 arch/x86/entry/common.c:263
> entry_SYSCALL_64_fastpath+0xbc/0xbe
>
> The buggy address belongs to the object at ffff880141581640
> which belongs to the cache kmalloc-65536 of size 65536
> The buggy address is located 36644 bytes inside of
> 65536-byte region [ffff880141581640, ffff880141591640)
> The buggy address belongs to the page:
> page:ffffea000464b400 count:1 mapcount:0 mapping:ffff880141581640
> index:0x0 compound_mapcount: 0
> flags: 0x200000000008100(slab|head)
> raw: 0200000000008100 ffff880141581640 0000000000000000 0000000100000001
> raw: ffffea00064b1f20 ffffea000640fa20 ffff8801db800d00
> page dumped because: kasan: bad access detected
>
> Memory state around the buggy address:
> ffff88014158a400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff88014158a480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> >ffff88014158a500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ^
> ffff88014158a580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff88014158a600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ==================================================================
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: srcu: BUG in __synchronize_srcu
2017-03-27 14:16 ` Paul E. McKenney
@ 2017-03-27 14:51 ` Dmitry Vyukov
0 siblings, 0 replies; 11+ messages in thread
From: Dmitry Vyukov @ 2017-03-27 14:51 UTC (permalink / raw)
To: Paul McKenney
Cc: Lance Roy, Andrey Konovalov, Lai Jiangshan, Josh Triplett,
Steven Rostedt, Mathieu Desnoyers, LKML, syzkaller,
Kostya Serebryany
On Mon, Mar 27, 2017 at 4:16 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Mon, Mar 27, 2017 at 02:36:35PM +0200, Dmitry Vyukov wrote:
>> On Tue, Mar 14, 2017 at 5:21 PM, Paul E. McKenney
>> <paulmck@linux.vnet.ibm.com> wrote:
>> > On Tue, Mar 14, 2017 at 12:47:02AM -0700, Lance Roy wrote:
>> >> I am not sure how the rcu_scheduler_active changes in __synchronize_srcu work,
>> >> but there seem to be a few problems in them. First,
>> >> "if (done && likely(!driving))" on line 453 doesn't appear to ever happen,
>> >> as driving doesn't get set to false when srcu_reschedule is called. This seems
>> >> like it could cause a race condition if another thread notices that ->running is
>> >> false, adds itself to the queue, set ->running to true, and starts on its own
>> >> grace period before the first thread acquires the lock again on line 469. Then
>> >> the first thread will then acquire the lock, set running to false, and release
>> >> the lock, resulting in an invalid state where ->running is false but the second
>> >> thread is still trying to finish its grace period.
>> >>
>> >> Second, the while loop on line 455 seems to violate to rule that ->running
>> >> shouldn't be false when there are entries in the queue. If a second thread adds
>> >> itself to the queue while the first thread is driving SRCU inside that loop, and
>> >> then the first thread finishes its own grace period and quits the loop, it will
>> >> set ->running to false even though there is still a thread on the queue.
>> >>
>> >> The second issue requires rcu_scheduler_active to be RCU_SCHEDULER_INIT to
>> >> occur, and as I don't what the assumptions during RCU_SCHEDULER_INIT are I don't
>> >> know if it is actually a problem, but the first issue looks like it could occur
>> >> at any time.
>> >
>> > Thank you for looking into this!
>> >
>> > I determined that my patch-order strategy was flawed, as it required
>> > me to rewrite the mid-boot functionality several times. I therefore
>> > removed the mid-boot commits. I will add them in later, but they will
>> > use a rather different approach based on a grace-period sequence number
>> > similar to that used by the expedited grace periods.
>> >
>> > Which should also teach me to be less aggressive about pushing new code
>> > to -next. For a few weeks, anyway. ;-)
>> >
>> > Thanx, Paul
>> >
>> >> Thanks,
>> >> Lance
>> >>
>> >> On Fri, 10 Mar 2017 14:26:09 -0800
>> >> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
>> >> > On Fri, Mar 10, 2017 at 08:29:55PM +0100, Andrey Konovalov wrote:
>> >> > > On Fri, Mar 10, 2017 at 8:28 PM, Andrey Konovalov <andreyknvl@google.com>
>> >> > > wrote:
>> >> > > > Kernel panic - not syncing: Fatal exception
>> >> >
>> >> > So the theory is that if !sp->running, all of SRCU's queues must be empty.
>> >> > So if you are holding ->queue_lock (with irqs disabled) and you see
>> >> > !sp->running, and then you enqueue a callback on ->batch_check0, then
>> >> > that callback must be the first in the list. And the code preceding
>> >> > the WARN_ON() you triggered does in fact check and enqueue shile holding
>> >> > ->queue_lock with irqs disabled.
>> >> >
>> >> > And rcu_batch_queue() does operate FIFO as required. (Otherwise,
>> >> > srcu_barrier() would not work.)
>> >> >
>> >> > There are only three calls to rcu_batch_queue(), and the one involved with
>> >> > the WARN_ON() enqueues to ->batch_check0. The other two enqueue to
>> >> > ->batch_queue. Callbacks move from ->batch_queue to ->batch_check0 to
>> >> > ->batch_check1 to ->batch_done, so nothing should slip in front.
>> >> >
>> >> > Of course, if ->running were ever set to false with any of ->batch_check0,
>> >> > ->batch_check1, or ->batch_done non-empty, this WARN_ON() would trigger.
>> >> > But srcu_reschedule() sets it to false only if all four batches are
>> >> > empty (and checks and sets under ->queue_lock()), and all other cases
>> >> > where it is set to false happen at initialization time, and also clear
>> >> > out the queues. Of course, if someone raced an init_srcu_struct() with
>> >> > either a call_srcu() or synchronize_srcu(), all bets are off. Now,
>> >> > mmu_notifier.c does invoke init_srcu_struct() manually, but it does
>> >> > so at subsys_initcall() time. Which -might- be after other things are
>> >> > happening, so one "hail Mary" attempted fix is to remove mmu_notifier_init()
>> >> > and replace the "static struct srcu_struct srcu" with:
>> >>
>> >> >
>> >> > DEFINE_STATIC_SRCU(srcu);
>> >> >
>> >> > But this might require changing the name -- I vaguely recall some
>> >> > strangeness where the names of statically defined per-CPU variables need
>> >> > to be globally unique even when static. Easy enough to do, though.
>> >> > Might need a similar change to the "srcu" instances defined in vmd.c
>> >> > and kvm_host.h -- assuming that this change helps.
>> >> >
>> >> > Another possibility is that something in SRCU is messing with either the
>> >> > queues or the ->running field without holding ->queue_lock. And that does
>> >> > seem to be happening -- srcu_advance_batches() invokes rcu_batch_move()
>> >> > without holding anything. Which seems like it could cause trouble
>> >> > if someone else was invoking synchronize_srcu() concurrently. Those
>> >> > particular invocations might be safe due to access only by a single
>> >> > kthread/workqueue, given that all updates to ->batch_queue are protected
>> >> > by ->queue_lock (aside from initialization).
>> >> >
>> >> > But ->batch_check0 is updated by __synchronize_srcu(), though protected
>> >> > by ->queue_lock, and only if ->running is false, and with both the
>> >> > check and the update protected by the same ->queue_lock critical section.
>> >> > If ->running is false, then the workqueue cannot be running, so it remains
>> >> > to see if all other updates to ->batch_check0 are either with ->queue_lock
>> >> > held and ->running false on the one hand or from the workqueue handler
>> >> > on the other:
>> >> >
>> >> > srcu_collect_new() updates with ->queue_lock held, but does not check
>> >> > ->running. It is invoked only from process_srcu(), which in
>> >> > turn is invoked only as a workqueue handler. The work is queued
>> >> > from:
>> >> >
>> >> > call_srcu(), which does so with ->queue_lock held having just
>> >> > set ->running to true.
>> >> >
>> >> > srcu_reschedule(), which invokes it if there are non-empty
>> >> > queues. This is invoked from __synchronize_srcu()
>> >> > in the case where it has set ->running to true
>> >> > after finding the queues empty, which should imply
>> >> > no other instances.
>> >> >
>> >> > It is also invoked from process_srcu(), which is
>> >> > invoked only as a workqueue handler. (Yay
>> >> > recursive inquiry!)
>> >> >
>> >> > srcu_advance_batches() updates without locks held. It is invoked as
>> >> > follows:
>> >> >
>> >> > __synchronize_srcu() in the case where ->running was set, which
>> >> > as noted before excludes workqueue handlers.
>> >> >
>> >> > process_srcu() which as noted before is only invoked from
>> >> > a workqueue handler.
>> >> >
>> >> > So an SRCU workqueue is invoked only from a workqueue handler, or from
>> >> > some other task that transitioned ->running from false to true while
>> >> > holding ->queuelock. There should therefore only be one SRCU workqueue
>> >> > per srcu_struct, so this should be safe. Though I hope that it can
>> >> > be simplified a bit. :-/
>> >> >
>> >> > So the only suggestion I have at the moment is static definition of
>> >> > the "srcu" variable. Lai, Josh, Steve, Mathieu, anything I missed?
>> >> >
>> >> > Thanx, Paul
>>
>>
>>
>> This happened on linux-next/65b2dc38291f9f27e5ec3b804d6eb3b5f79a3ce4
>> and may be related.
>> The report says that srcu subsystem still uses the srcu object after
>> it has been freed. It can be a kvm fault as well.
>
> Hmmm... I am not seeing a call to cleanup_srcu_struct() for the
> ->track_srcu field of the kvm_page_track_notifier_head structure.
> Or is this structure immortal, so that it is never cleaned up?
> Or am I just blind this morning?
>
> In any case, freeing the kvm_page_track_notifier_head structure
> without first invoking cleanup_srcu_struct() on its ->track_srcu
> srcu_struct field could easily result in a use-after-free bug.
Sent this to kvm people:
https://groups.google.com/d/msg/syzkaller/Sl0POwca6-s/QR_z6AsFCQAJ
>> ==================================================================
>> BUG: KASAN: use-after-free in debug_spin_unlock
>> kernel/locking/spinlock_debug.c:97 [inline]
>> BUG: KASAN: use-after-free in do_raw_spin_unlock+0x2ea/0x320
>> kernel/locking/spinlock_debug.c:134
>> Read of size 4 at addr ffff88014158a564 by task kworker/1:1/5712
>>
>> CPU: 1 PID: 5712 Comm: kworker/1:1 Not tainted 4.11.0-rc3-next-20170324+ #1
>> Hardware name: Google Google Compute Engine/Google Compute Engine,
>> BIOS Google 01/01/2011
>> Workqueue: events_power_efficient process_srcu
>> Call Trace:
>> __dump_stack lib/dump_stack.c:16 [inline]
>> dump_stack+0x2fb/0x40f lib/dump_stack.c:52
>> print_address_description+0x7f/0x260 mm/kasan/report.c:250
>> kasan_report_error mm/kasan/report.c:349 [inline]
>> kasan_report.part.3+0x21f/0x310 mm/kasan/report.c:372
>> kasan_report mm/kasan/report.c:392 [inline]
>> __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:392
>> debug_spin_unlock kernel/locking/spinlock_debug.c:97 [inline]
>> do_raw_spin_unlock+0x2ea/0x320 kernel/locking/spinlock_debug.c:134
>> __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:167 [inline]
>> _raw_spin_unlock_irq+0x22/0x70 kernel/locking/spinlock.c:199
>> spin_unlock_irq include/linux/spinlock.h:349 [inline]
>> srcu_reschedule+0x1a1/0x260 kernel/rcu/srcu.c:582
>> process_srcu+0x63c/0x11c0 kernel/rcu/srcu.c:600
>> process_one_work+0xac0/0x1b00 kernel/workqueue.c:2097
>> worker_thread+0x1b4/0x1300 kernel/workqueue.c:2231
>> kthread+0x36c/0x440 kernel/kthread.c:231
>> ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430
>>
>> Allocated by task 20961:
>> save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
>> save_stack+0x43/0xd0 mm/kasan/kasan.c:515
>> set_track mm/kasan/kasan.c:527 [inline]
>> kasan_kmalloc+0xaa/0xd0 mm/kasan/kasan.c:619
>> kmem_cache_alloc_trace+0x10b/0x670 mm/slab.c:3635
>> kmalloc include/linux/slab.h:492 [inline]
>> kzalloc include/linux/slab.h:665 [inline]
>> kvm_arch_alloc_vm include/linux/kvm_host.h:773 [inline]
>> kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:610 [inline]
>> kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3161 [inline]
>> kvm_dev_ioctl+0x1bf/0x1460 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3205
>> vfs_ioctl fs/ioctl.c:45 [inline]
>> do_vfs_ioctl+0x1bf/0x1780 fs/ioctl.c:685
>> SYSC_ioctl fs/ioctl.c:700 [inline]
>> SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
>> entry_SYSCALL_64_fastpath+0x1f/0xbe
>>
>> Freed by task 20960:
>> save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
>> save_stack+0x43/0xd0 mm/kasan/kasan.c:515
>> set_track mm/kasan/kasan.c:527 [inline]
>> kasan_slab_free+0x6e/0xc0 mm/kasan/kasan.c:592
>> __cache_free mm/slab.c:3511 [inline]
>> kfree+0xd3/0x250 mm/slab.c:3828
>> kvm_arch_free_vm include/linux/kvm_host.h:778 [inline]
>> kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:732 [inline]
>> kvm_put_kvm+0x709/0x9a0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:747
>> kvm_vm_release+0x42/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:758
>> __fput+0x332/0x800 fs/file_table.c:209
>> ____fput+0x15/0x20 fs/file_table.c:245
>> task_work_run+0x197/0x260 kernel/task_work.c:116
>> exit_task_work include/linux/task_work.h:21 [inline]
>> do_exit+0x1a53/0x27c0 kernel/exit.c:878
>> do_group_exit+0x149/0x420 kernel/exit.c:982
>> get_signal+0x7d8/0x1820 kernel/signal.c:2318
>> do_signal+0xd2/0x2190 arch/x86/kernel/signal.c:808
>> exit_to_usermode_loop+0x21c/0x2d0 arch/x86/entry/common.c:157
>> prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
>> syscall_return_slowpath+0x4d3/0x570 arch/x86/entry/common.c:263
>> entry_SYSCALL_64_fastpath+0xbc/0xbe
>>
>> The buggy address belongs to the object at ffff880141581640
>> which belongs to the cache kmalloc-65536 of size 65536
>> The buggy address is located 36644 bytes inside of
>> 65536-byte region [ffff880141581640, ffff880141591640)
>> The buggy address belongs to the page:
>> page:ffffea000464b400 count:1 mapcount:0 mapping:ffff880141581640
>> index:0x0 compound_mapcount: 0
>> flags: 0x200000000008100(slab|head)
>> raw: 0200000000008100 ffff880141581640 0000000000000000 0000000100000001
>> raw: ffffea00064b1f20 ffffea000640fa20 ffff8801db800d00
>> page dumped because: kasan: bad access detected
>>
>> Memory state around the buggy address:
>> ffff88014158a400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>> ffff88014158a480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>> >ffff88014158a500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>> ^
>> ffff88014158a580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>> ffff88014158a600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>> ==================================================================
>>
>
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2017-03-27 14:52 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-03-10 19:28 srcu: BUG in __synchronize_srcu Andrey Konovalov
2017-03-10 19:29 ` Andrey Konovalov
2017-03-10 19:42 ` Dmitry Vyukov
2017-03-10 22:26 ` Paul E. McKenney
2017-03-11 14:25 ` Mathieu Desnoyers
2017-03-11 20:06 ` Paul E. McKenney
2017-03-14 7:47 ` Lance Roy
2017-03-14 16:21 ` Paul E. McKenney
2017-03-27 12:36 ` Dmitry Vyukov
2017-03-27 14:16 ` Paul E. McKenney
2017-03-27 14:51 ` Dmitry Vyukov
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