* [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
@ 2009-07-05 9:11 Wu Zhangjin
2009-07-05 14:19 ` Linus Torvalds
0 siblings, 1 reply; 14+ messages in thread
From: Wu Zhangjin @ 2009-07-05 9:11 UTC (permalink / raw)
To: linux-media, linux-kernel, linux-mips
Cc: Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Linus Torvalds, Ralf Baechle, 晏华, zhangfx
[-- Attachment #1: Type: text/plain, Size: 2855 bytes --]
Hi, all
I just tested the sis315 driver in the latest master branch of
linux-mips git repository on fuloong2f(loongson-based machine, loongson
is mips comptable):
Device Drivers --->
Graphics support --->
<*> Support for frame buffer devices --->
<*> SiS/XGI display support
[*] SiS 315/330/340 series and XGI support
The kernel stopped at(output via serial port):
...
sisfb: Detected SiS301C video bridge
sisfb: CRT1 DDC probing failed
sisfb: Default mode is 800x600x8 (60HZ)
no more output, but the Num,Caps light of keyboard works.
and because sis 315 of the latest linux-2.6.30-stable works well on
fuloong2f, so, I tried to check the latest commits who modified sis
relative source code via "git whatchanged", at last I found this:
commit 537a1bf059fa312355696fa6db80726e655e7f17
Author: Krzysztof Helt <krzysztof.h1@wp.pl>
Date: Tue Jun 30 11:41:29 2009 -0700
fbdev: add mutex for fb_mmap locking
Add a mutex to avoid a circular locking problem between the mm layer
semaphore and fbdev ioctl mutex through the fb_mmap() call.
Also, add mutex to all places where smem_start and smem_len fields
change
so the mutex inside the fb_mmap() is actually used. Changing of
these
fields before calling the framebuffer_register() are not mutexed.
This is 2.6.31 material. It removes one lockdep (fb_mmap() and
register_framebuffer()) but there is still another one (fb_release()
and
register_framebuffer()). It also cleans up handling of the
smem_start and
smem_len fields used by mutexed section of the fb_mmap().
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
and then, I tried to revert the modification in
drivers/video/sis/sis_main.c:
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index fd33455..7072d19 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1847,10 +1847,8 @@ sisfb_get_fix(struct fb_fix_screeninfo *fix, int
con, struct fb_info *info)
strcpy(fix->id, ivideo->myid);
- mutex_lock(&info->mm_lock);
fix->smem_start = ivideo->video_base + ivideo->video_offset;
fix->smem_len = ivideo->sisfb_mem;
- mutex_unlock(&info->mm_lock);
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
fix->visual = (ivideo->video_bpp == 8) ?
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
then it works! so, I guess there is a deadlock introduced by the above
commit.
I attached my config file, hope it can give you more information about
this bug.
Regards,
Wu Zhangjin
[-- Attachment #2: sis315-deadlock.config --]
[-- Type: text/plain, Size: 43371 bytes --]
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.31-rc2
# Sun Jul 5 16:25:14 2009
#
CONFIG_MIPS=y
#
# Machine selection
#
# CONFIG_MACH_ALCHEMY is not set
# CONFIG_AR7 is not set
# CONFIG_BASLER_EXCITE is not set
# CONFIG_BCM47XX is not set
# CONFIG_MIPS_COBALT is not set
# CONFIG_MACH_DECSTATION is not set
# CONFIG_MACH_JAZZ is not set
# CONFIG_LASAT is not set
CONFIG_MACH_LOONGSON=y
# CONFIG_MIPS_MALTA is not set
# CONFIG_MIPS_SIM is not set
# CONFIG_NEC_MARKEINS is not set
# CONFIG_MACH_VR41XX is not set
# CONFIG_NXP_STB220 is not set
# CONFIG_NXP_STB225 is not set
# CONFIG_PNX8550_JBS is not set
# CONFIG_PNX8550_STB810 is not set
# CONFIG_PMC_MSP is not set
# CONFIG_PMC_YOSEMITE is not set
# CONFIG_SGI_IP22 is not set
# CONFIG_SGI_IP27 is not set
# CONFIG_SGI_IP28 is not set
# CONFIG_SGI_IP32 is not set
# CONFIG_SIBYTE_CRHINE is not set
# CONFIG_SIBYTE_CARMEL is not set
# CONFIG_SIBYTE_CRHONE is not set
# CONFIG_SIBYTE_RHONE is not set
# CONFIG_SIBYTE_SWARM is not set
# CONFIG_SIBYTE_LITTLESUR is not set
# CONFIG_SIBYTE_SENTOSA is not set
# CONFIG_SIBYTE_BIGSUR is not set
# CONFIG_SNI_RM is not set
# CONFIG_MACH_TX39XX is not set
# CONFIG_MACH_TX49XX is not set
# CONFIG_MIKROTIK_RB532 is not set
# CONFIG_WR_PPMC is not set
# CONFIG_CAVIUM_OCTEON_SIMULATOR is not set
# CONFIG_CAVIUM_OCTEON_REFERENCE_BOARD is not set
# CONFIG_ALCHEMY_GPIO_INDIRECT is not set
CONFIG_ARCH_SPARSEMEM_ENABLE=y
# CONFIG_LEMOTE_FULOONG2E is not set
CONFIG_LEMOTE_FULOONG2F=y
CONFIG_CS5536=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_ARCH_SUPPORTS_OPROFILE=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_CEVT_R4K_LIB=y
CONFIG_CEVT_R4K=y
CONFIG_CSRC_R4K_LIB=y
CONFIG_CSRC_R4K=y
CONFIG_DMA_NONCOHERENT=y
CONFIG_DMA_NEED_PCI_MAP_STATE=y
CONFIG_EARLY_PRINTK=y
CONFIG_SYS_HAS_EARLY_PRINTK=y
CONFIG_I8259=y
# CONFIG_NO_IOPORT is not set
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_ISA_DMA_SUPPORT_BROKEN=y
# CONFIG_CPU_BIG_ENDIAN is not set
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
CONFIG_IRQ_CPU=y
CONFIG_BOOT_ELF32=y
CONFIG_MIPS_L1_CACHE_SHIFT=5
#
# CPU selection
#
# CONFIG_CPU_LOONGSON2E is not set
CONFIG_CPU_LOONGSON2F=y
# CONFIG_CPU_MIPS32_R1 is not set
# CONFIG_CPU_MIPS32_R2 is not set
# CONFIG_CPU_MIPS64_R1 is not set
# CONFIG_CPU_MIPS64_R2 is not set
# CONFIG_CPU_R3000 is not set
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_VR41XX is not set
# CONFIG_CPU_R4300 is not set
# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
# CONFIG_CPU_R5500 is not set
# CONFIG_CPU_R6000 is not set
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R8000 is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_RM9000 is not set
# CONFIG_CPU_SB1 is not set
# CONFIG_CPU_CAVIUM_OCTEON is not set
CONFIG_CPU_LOONGSON2=y
CONFIG_SYS_HAS_CPU_LOONGSON2F=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y
#
# Kernel type
#
# CONFIG_32BIT is not set
CONFIG_64BIT=y
# CONFIG_PAGE_SIZE_4KB is not set
# CONFIG_PAGE_SIZE_8KB is not set
CONFIG_PAGE_SIZE_16KB=y
# CONFIG_PAGE_SIZE_32KB is not set
# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_BOARD_SCACHE=y
CONFIG_MIPS_MT_DISABLED=y
# CONFIG_MIPS_MT_SMP is not set
# CONFIG_MIPS_MT_SMTC is not set
CONFIG_CPU_HAS_WB=y
CONFIG_CPU_HAS_SYNC=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_CPU_SUPPORTS_HIGHMEM=y
CONFIG_SYS_SUPPORTS_HIGHMEM=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=0
CONFIG_VIRT_TO_BUS=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_HZ_48 is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_128 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_256 is not set
# CONFIG_HZ_1000 is not set
# CONFIG_HZ_1024 is not set
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
CONFIG_HZ=250
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_KEXEC=y
# CONFIG_SECCOMP is not set
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set
CONFIG_AUDIT=y
#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
# CONFIG_GROUP_SCHED is not set
# CONFIG_CGROUPS is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
# CONFIG_NAMESPACES is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_EMBEDDED=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
#
# Performance Counters
#
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_COMPAT_BRK=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
# CONFIG_MARKERS is not set
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_SYSCALL_WRAPPERS=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
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=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_PROBE_INITRD_HEADER is not set
CONFIG_FREEZER=y
#
# Bus options (PCI, PCMCIA, EISA, ISA, TC)
#
CONFIG_HW_HAS_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_IOV is not set
CONFIG_ISA=y
CONFIG_MMU=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set
#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_MIPS32_COMPAT=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_MIPS32_O32=y
CONFIG_MIPS32_N32=y
CONFIG_BINFMT_ELF32=y
#
# Power management options
#
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_HIBERNATION is not set
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
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=y
CONFIG_ASK_IP_FIB_HASH=y
# CONFIG_IP_FIB_TRIE is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH 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_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_TCP_CONG_LP is not set
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
CONFIG_DEFAULT_BIC=y
# CONFIG_DEFAULT_CUBIC is not set
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="bic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=m
CONFIG_IPV6_PRIVACY=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_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_SIT=m
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NETFILTER_XTABLES is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_IP_NF_QUEUE is not set
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set
#
# IPv6: Netfilter Configuration
#
# CONFIG_IP6_NF_QUEUE is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_TIPC is not set
CONFIG_ATM=y
CONFIG_ATM_CLIP=y
# CONFIG_ATM_CLIP_NO_ICMP is not set
# CONFIG_ATM_LANE is not set
# CONFIG_ATM_BR2684 is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
# CONFIG_NET_SCH_HTB is not set
# CONFIG_NET_SCH_HFSC is not set
# CONFIG_NET_SCH_ATM is not set
# CONFIG_NET_SCH_PRIO is not set
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFQ is not set
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_GRED is not set
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_INGRESS is not set
#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
# CONFIG_NET_EMATCH_CMP is not set
# CONFIG_NET_EMATCH_NBYTE is not set
# CONFIG_NET_EMATCH_U32 is not set
# CONFIG_NET_EMATCH_META is not set
# CONFIG_NET_EMATCH_TEXT is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_HAMRADIO=y
#
# Packet Radio protocols
#
# CONFIG_AX25 is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_AF_RXRPC=y
# CONFIG_AF_RXRPC_DEBUG is not set
# CONFIG_RXKAD is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y
#
# Protocols
#
CONFIG_ISAPNP=y
# CONFIG_PNPACPI is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA 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_CRYPTOLOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_TIMINGS=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
# CONFIG_BLK_DEV_IDECD is not set
# CONFIG_BLK_DEV_IDETAPE is not set
CONFIG_IDE_TASK_IOCTL=y
CONFIG_IDE_PROC_FS=y
#
# IDE chipset support/bugfixes
#
# CONFIG_IDE_GENERIC is not set
# CONFIG_BLK_DEV_PLATFORM is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y
#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
CONFIG_BLK_DEV_AMD74XX=y
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
#
# Other IDE chipsets support
#
#
# Note: most of these also require special kernel boot parameters
#
# CONFIG_BLK_DEV_4DRIVES is not set
# CONFIG_BLK_DEV_ALI14XX is not set
# CONFIG_BLK_DEV_DTC2278 is not set
# CONFIG_BLK_DEV_HT6560B is not set
# CONFIG_BLK_DEV_QD65XX is not set
# CONFIG_BLK_DEV_UMC8672 is not set
CONFIG_BLK_DEV_IDEDMA=y
#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m
#
# 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_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_LIBFC is not set
# CONFIG_LIBFCOE is not set
# CONFIG_FCOE is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
# CONFIG_ATA is not set
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_DM is not set
CONFIG_FUSION=y
# CONFIG_FUSION_SPI is not set
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set
CONFIG_FUSION_MAX_SGE=40
# CONFIG_FUSION_LOGGING is not set
#
# IEEE 1394 (FireWire) support
#
#
# You can enable one or both FireWire driver stacks.
#
#
# See the help texts for more information.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_NETDEVICES=y
# CONFIG_IFB is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_AX88796 is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_SMC91X is not set
# CONFIG_DM9000 is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_DNET is not set
# CONFIG_NET_TULIP is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
# CONFIG_NET_PCI is not set
# CONFIG_B44 is not set
# CONFIG_CS89x0 is not set
# CONFIG_KS8842 is not set
# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
# CONFIG_IP1000 is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_R8169=y
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_ATM_DRIVERS is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_INPORT is not set
# CONFIG_MOUSE_LOGIBM is not set
# CONFIG_MOUSE_PC110PAD is not set
# CONFIG_MOUSE_VSXXXAA is not set
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
# CONFIG_JOYSTICK_A3D is not set
# CONFIG_JOYSTICK_ADI is not set
# CONFIG_JOYSTICK_COBRA is not set
# CONFIG_JOYSTICK_GF2K is not set
# CONFIG_JOYSTICK_GRIP is not set
# CONFIG_JOYSTICK_GRIP_MP is not set
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
# CONFIG_JOYSTICK_SIDEWINDER is not set
# CONFIG_JOYSTICK_TMDC is not set
# CONFIG_JOYSTICK_IFORCE is not set
# CONFIG_JOYSTICK_WARRIOR is not set
# CONFIG_JOYSTICK_MAGELLAN is not set
# CONFIG_JOYSTICK_SPACEORB is not set
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
# CONFIG_JOYSTICK_ZHENHUA is not set
# CONFIG_JOYSTICK_JOYDUMP is not set
# CONFIG_JOYSTICK_XPAD is not set
# CONFIG_INPUT_TABLET is not set
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_HTCPEN is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_W90X900 is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_ISI is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_N_HDLC is not set
# CONFIG_RISCOM8 is not set
# CONFIG_SPECIALIX is not set
# CONFIG_SX is not set
# CONFIG_RIO is not set
# CONFIG_STALDRV is not set
# CONFIG_NOZOMI is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_8250_PCI is not set
# CONFIG_SERIAL_8250_PNP is not set
CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=y
# CONFIG_SERIAL_8250_ACCENT is not set
# CONFIG_SERIAL_8250_BOCA is not set
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
# CONFIG_SERIAL_8250_HUB6 is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=16
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
# CONFIG_SPI is not set
#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_ALIM7101_WDT is not set
#
# ISA-based Watchdog Cards
#
# CONFIG_PCWATCHDOG is not set
# CONFIG_MIXCOMWD is not set
# CONFIG_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
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
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 is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA 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=y
# CONFIG_FB_SIS_300 is not set
CONFIG_FB_SIS_315=y
# CONFIG_FB_VIA 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_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_LOGO is not set
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
# CONFIG_HIDRAW is not set
#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y
#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_ZEROPLUS is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_WHCI_HCD is not set
# CONFIG_USB_HWA_HCD is not set
#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_FREECOM=y
CONFIG_USB_STORAGE_ISD200=y
CONFIG_USB_STORAGE_USBAT=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
CONFIG_USB_STORAGE_ALAUDA=y
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_LIBUSUAL is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
#
# 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_BERRY_CHARGE is not set
# CONFIG_USB_LED 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_ISIGHTFW is not set
# CONFIG_USB_VST is not set
# CONFIG_USB_ATM is not set
# CONFIG_USB_GADGET is not set
#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc"
# 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
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
#
# TI VLYNQ
#
# CONFIG_STAGING is not set
#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS 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_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=y
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
# CONFIG_ACORN_PARTITION_CUMANA is not set
# CONFIG_ACORN_PARTITION_EESOX is not set
CONFIG_ACORN_PARTITION_ICS=y
# CONFIG_ACORN_PARTITION_ADFS is not set
# CONFIG_ACORN_PARTITION_POWERTEC is not set
CONFIG_ACORN_PARTITION_RISCIX=y
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
CONFIG_ATARI_PARTITION=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_KERNEL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_CMDLINE=""
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_SECURITY_ROOTPLUG is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_TOMOYO is not set
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
#
# Ciphers
#
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 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_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
# CONFIG_BINARY_PRINTF is not set
#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
^ permalink raw reply related [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 9:11 [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking" Wu Zhangjin
@ 2009-07-05 14:19 ` Linus Torvalds
2009-07-05 14:52 ` Paul Mundt
2009-07-05 15:05 ` Krzysztof Helt
0 siblings, 2 replies; 14+ messages in thread
From: Linus Torvalds @ 2009-07-05 14:19 UTC (permalink / raw)
To: Wu Zhangjin
Cc: linux-media, linux-kernel, linux-mips, Krzysztof Helt,
Peter Zijlstra, Rafael J. Wysocki, Andrew Morton, Ralf Baechle,
晏华, zhangfx
On Sun, 5 Jul 2009, Wu Zhangjin wrote:
>
> then it works! so, I guess there is a deadlock introduced by the above
> commit.
Hmm. Perhaps more likely, the 'mm_lock' mutex hasn't even been initialized
yet. We appear to have had that problem with matroxfb and sm501fb, and it
may be more common than that. See commit f50bf2b2.
That said, I do agree that the mm_lock seems to be causing more problems
than it actually fixes, and maybe we should revert it. Krzysztof?
Linus
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 14:19 ` Linus Torvalds
@ 2009-07-05 14:52 ` Paul Mundt
2009-07-05 14:56 ` Linus Torvalds
2009-07-05 15:05 ` Krzysztof Helt
1 sibling, 1 reply; 14+ messages in thread
From: Paul Mundt @ 2009-07-05 14:52 UTC (permalink / raw)
To: Linus Torvalds
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Sun, Jul 05, 2009 at 07:19:33AM -0700, Linus Torvalds wrote:
>
>
> On Sun, 5 Jul 2009, Wu Zhangjin wrote:
> >
> > then it works! so, I guess there is a deadlock introduced by the above
> > commit.
>
> Hmm. Perhaps more likely, the 'mm_lock' mutex hasn't even been initialized
> yet. We appear to have had that problem with matroxfb and sm501fb, and it
> may be more common than that. See commit f50bf2b2.
>
> That said, I do agree that the mm_lock seems to be causing more problems
> than it actually fixes, and maybe we should revert it. Krzysztof?
>
Looking at this a bit closer, just moving the mutex initialization in to
framebuffer_alloc() should basically fix most of these, at least it
certainly does for sm501fb and for this sis case as well. So, here's a
patch to do that.
As an aside note, matroxfb is the odd one out, as it doesn't use
framebuffer_alloc() directly for whatever reason. This actually raises an
additional issue, in that framebuffer_alloc() is already where other
mutexes are initialized, which will simply never happen on matroxfb
(suggesting that at least the FB_BACKLIGHT and matroxfb combination will
blow up, although perhaps that's not a valid combination).
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
drivers/video/fbmem.c | 1 -
drivers/video/fbsysfs.c | 2 ++
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 53ea056..27a5271 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1514,7 +1514,6 @@ register_framebuffer(struct fb_info *fb_info)
break;
fb_info->node = i;
mutex_init(&fb_info->lock);
- mutex_init(&fb_info->mm_lock);
fb_info->dev = device_create(fb_class, fb_info->device,
MKDEV(FB_MAJOR, i), NULL, "fb%d", i);
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index d4a2c11..dd413ad 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -62,6 +62,8 @@ struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
mutex_init(&info->bl_curve_mutex);
#endif
+ mutex_init(&info->mm_lock);
+
return info;
#undef PADDING
#undef BYTES_PER_LONG
^ permalink raw reply related [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 14:52 ` Paul Mundt
@ 2009-07-05 14:56 ` Linus Torvalds
2009-07-05 15:01 ` Paul Mundt
0 siblings, 1 reply; 14+ messages in thread
From: Linus Torvalds @ 2009-07-05 14:56 UTC (permalink / raw)
To: Paul Mundt
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Sun, 5 Jul 2009, Paul Mundt wrote:
> break;
> fb_info->node = i;
> mutex_init(&fb_info->lock);
> - mutex_init(&fb_info->mm_lock);
Why not "lock" as well?
Linus
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 14:56 ` Linus Torvalds
@ 2009-07-05 15:01 ` Paul Mundt
2009-07-05 15:19 ` Linus Torvalds
0 siblings, 1 reply; 14+ messages in thread
From: Paul Mundt @ 2009-07-05 15:01 UTC (permalink / raw)
To: Linus Torvalds
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Sun, Jul 05, 2009 at 07:56:56AM -0700, Linus Torvalds wrote:
>
>
> On Sun, 5 Jul 2009, Paul Mundt wrote:
> > break;
> > fb_info->node = i;
> > mutex_init(&fb_info->lock);
> > - mutex_init(&fb_info->mm_lock);
>
> Why not "lock" as well?
>
I had that initially, but matroxfb will break if we do that, and
presently nothing cares about trying to take ->lock that early on.
->mm_lock was a special case as the lock/unlock pairs were sprinkled
around well before initialization, while in the ->lock case all of the
lock/unlock pairs are handled internally by the fbmem code (at least a
quick grep does not show any drivers using it on their own).
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 14:19 ` Linus Torvalds
2009-07-05 14:52 ` Paul Mundt
@ 2009-07-05 15:05 ` Krzysztof Helt
1 sibling, 0 replies; 14+ messages in thread
From: Krzysztof Helt @ 2009-07-05 15:05 UTC (permalink / raw)
To: Linus Torvalds
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, 晏华, zhangfx
On Sun, 5 Jul 2009 07:19:33 -0700 (PDT)
Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
>
> On Sun, 5 Jul 2009, Wu Zhangjin wrote:
> >
> > then it works! so, I guess there is a deadlock introduced by the above
> > commit.
>
> Hmm. Perhaps more likely, the 'mm_lock' mutex hasn't even been initialized
> yet. We appear to have had that problem with matroxfb and sm501fb, and it
> may be more common than that. See commit f50bf2b2.
>
> That said, I do agree that the mm_lock seems to be causing more problems
> than it actually fixes, and maybe we should revert it. Krzysztof?
>
I vote for fixing these drivers after my change. I will send a patch for the sis driver soon. I am building new kernel now.
Regards,
Krzysztof
----------------------------------------------------------------------
Rozwiaz krzyzowke i wygraj nagrody!
Sprawdz >> http://link.interia.pl/f2232
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 15:01 ` Paul Mundt
@ 2009-07-05 15:19 ` Linus Torvalds
2009-07-05 15:25 ` Paul Mundt
0 siblings, 1 reply; 14+ messages in thread
From: Linus Torvalds @ 2009-07-05 15:19 UTC (permalink / raw)
To: Paul Mundt
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Mon, 6 Jul 2009, Paul Mundt wrote:
> >
> > Why not "lock" as well?
>
> I had that initially, but matroxfb will break if we do that, and
> presently nothing cares about trying to take ->lock that early on.
I really would rather have consistency than some odd rules like that.
In particular - if matroxfb is different and needs its own lock
initialization because it doesn't use the common allocation routine, then
please make _that_ consistent too. Rather than have it special-case just
one lock that it needs to initialize separately, make it clear that since
it does its own allocations it needs to initialize _everything_
separately.
Otherwise anybody grepping for things will always be confused, since
depending on random factors they'll notice the initializations in one
place or the other, and then do the wrong thing - exactly like mm_lock was
not correctly initialized this time around.
In other words: it's actually _better_ to make the matroxfb pain _more_
obvious rather than less.
And maybe we can deprecate the driver, throw it out entirely, or have
somebody actually fix it?
Linus
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 15:19 ` Linus Torvalds
@ 2009-07-05 15:25 ` Paul Mundt
2009-07-05 15:32 ` Linus Torvalds
` (2 more replies)
0 siblings, 3 replies; 14+ messages in thread
From: Paul Mundt @ 2009-07-05 15:25 UTC (permalink / raw)
To: Linus Torvalds
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Sun, Jul 05, 2009 at 08:19:40AM -0700, Linus Torvalds wrote:
>
>
> On Mon, 6 Jul 2009, Paul Mundt wrote:
> > >
> > > Why not "lock" as well?
> >
> > I had that initially, but matroxfb will break if we do that, and
> > presently nothing cares about trying to take ->lock that early on.
>
> I really would rather have consistency than some odd rules like that.
>
> In particular - if matroxfb is different and needs its own lock
> initialization because it doesn't use the common allocation routine, then
> please make _that_ consistent too. Rather than have it special-case just
> one lock that it needs to initialize separately, make it clear that since
> it does its own allocations it needs to initialize _everything_
> separately.
>
Ok, here is an updated version with an updated matroxfb and the sm501fb
change reverted.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
drivers/video/fbmem.c | 2 --
drivers/video/fbsysfs.c | 3 +++
drivers/video/matrox/matroxfb_base.c | 1 +
drivers/video/sm501fb.c | 2 --
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 53ea056..53eb396 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1513,8 +1513,6 @@ register_framebuffer(struct fb_info *fb_info)
if (!registered_fb[i])
break;
fb_info->node = i;
- mutex_init(&fb_info->lock);
- mutex_init(&fb_info->mm_lock);
fb_info->dev = device_create(fb_class, fb_info->device,
MKDEV(FB_MAJOR, i), NULL, "fb%d", i);
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index d4a2c11..afc04df 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -62,6 +62,9 @@ struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
mutex_init(&info->bl_curve_mutex);
#endif
+ mutex_init(&info->lock);
+ mutex_init(&info->mm_lock);
+
return info;
#undef PADDING
#undef BYTES_PER_LONG
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index 59c3a2e..76bc51b 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -2083,6 +2083,7 @@ static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dumm
spin_lock_init(&ACCESS_FBINFO(lock.accel));
init_rwsem(&ACCESS_FBINFO(crtc2.lock));
init_rwsem(&ACCESS_FBINFO(altout.lock));
+ mutex_init(&ACCESS_FBINFO(fbcon).lock);
mutex_init(&ACCESS_FBINFO(fbcon).mm_lock);
ACCESS_FBINFO(irq_flags) = 0;
init_waitqueue_head(&ACCESS_FBINFO(crtc1.vsync.wait));
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index 16d4f4c..98f24f0 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -1624,8 +1624,6 @@ static int __devinit sm501fb_start_one(struct sm501fb_info *info,
if (!fbi)
return 0;
- mutex_init(&info->fb[head]->mm_lock);
-
ret = sm501fb_init_fb(info->fb[head], head, drvname);
if (ret) {
dev_err(info->dev, "cannot initialise fb %s\n", drvname);
^ permalink raw reply related [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 15:25 ` Paul Mundt
@ 2009-07-05 15:32 ` Linus Torvalds
2009-07-05 16:18 ` Krzysztof Helt
2009-07-05 16:43 ` Krzysztof Helt
2 siblings, 0 replies; 14+ messages in thread
From: Linus Torvalds @ 2009-07-05 15:32 UTC (permalink / raw)
To: Paul Mundt
Cc: Wu Zhangjin, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Mon, 6 Jul 2009, Paul Mundt wrote:
>
> Ok, here is an updated version with an updated matroxfb and the sm501fb
> change reverted.
Wu Zhangjin, can you also confirm that this works for you (without your
patch)?
Linus
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 15:25 ` Paul Mundt
2009-07-05 15:32 ` Linus Torvalds
@ 2009-07-05 16:18 ` Krzysztof Helt
2009-07-06 1:13 ` Wu Zhangjin
2009-07-05 16:43 ` Krzysztof Helt
2 siblings, 1 reply; 14+ messages in thread
From: Krzysztof Helt @ 2009-07-05 16:18 UTC (permalink / raw)
To: Paul Mundt
Cc: Linus Torvalds, Wu Zhangjin, linux-media, linux-kernel,
linux-mips, Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki,
Andrew Morton, Ralf Baechle, ????, zhangfx
On Mon, 6 Jul 2009 00:25:57 +0900
Paul Mundt <lethal@linux-sh.org> wrote:
> On Sun, Jul 05, 2009 at 08:19:40AM -0700, Linus Torvalds wrote:
> >
> >
> > On Mon, 6 Jul 2009, Paul Mundt wrote:
> > > >
> > > > Why not "lock" as well?
> > >
> > > I had that initially, but matroxfb will break if we do that, and
> > > presently nothing cares about trying to take ->lock that early on.
> >
> > I really would rather have consistency than some odd rules like that.
> >
> > In particular - if matroxfb is different and needs its own lock
> > initialization because it doesn't use the common allocation routine, then
> > please make _that_ consistent too. Rather than have it special-case just
> > one lock that it needs to initialize separately, make it clear that since
> > it does its own allocations it needs to initialize _everything_
> > separately.
> >
> Ok, here is an updated version with an updated matroxfb and the sm501fb
> change reverted.
>
> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
>
> ---
>
This is incorrect way to fix this as some drivers do not use the framebuffer_alloc()
at all. They use global (for a file) fb_info structure. I have done some cleanups to
the fbdev layer before the 2.6.31 and there should no drivers which uses kmalloc or
kzalloc to allocate the fb_info (your patch would break these drivers too).
A root of the whole mm_lock issue is that the fb_mmap() BKL protected two fb_info
fields which were never protected when set. I changed this by add the mm_lock
around these fields but only in drivers which modified this fields AFTER call
to the register_framebuffer(). Some drivers set these fields using the same
function before and after the register_framebuffer(). I strongly believe that
setting these fields before the register_framebuffer() is wrong or redundant for
these drivers. See my fix for the sisfb driver below.
I have tested the patch below. Wu Zhangjin, can you also confirm that this
works for you (without your patch)?
I will look into the matroxfb and sm501fb drivers now. The same problem is
already fixed for the mx3fb driver and the patch is sent to Andrew Morton.
Regards,
Krzysztof
From: Krzysztof Helt <krzysztof.h1@wp.pl>
Remove redundant call to the sisfb_get_fix() before sis frambuffer is registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
---
diff -urp linux-ref/drivers/video/sis/sis_main.c linux-next/drivers/video/sis/sis_main.c
--- linux-ref/drivers/video/sis/sis_main.c 2009-07-01 18:07:05.000000000 +0200
+++ linux-next/drivers/video/sis/sis_main.c 2009-07-05 17:20:33.000000000 +0200
@@ -6367,7 +6367,6 @@ error_3: vfree(ivideo->bios_abase);
sis_fb_info->fix = ivideo->sisfb_fix;
sis_fb_info->screen_base = ivideo->video_vbase + ivideo->video_offset;
sis_fb_info->fbops = &sisfb_ops;
- sisfb_get_fix(&sis_fb_info->fix, -1, sis_fb_info);
sis_fb_info->pseudo_palette = ivideo->pseudo_palette;
fb_alloc_cmap(&sis_fb_info->cmap, 256 , 0);
----------------------------------------------------------------------
Najlepsze OC i AC tylko w Ergo Hestia
http://link.interia.pl/f222
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 15:25 ` Paul Mundt
2009-07-05 15:32 ` Linus Torvalds
2009-07-05 16:18 ` Krzysztof Helt
@ 2009-07-05 16:43 ` Krzysztof Helt
2 siblings, 0 replies; 14+ messages in thread
From: Krzysztof Helt @ 2009-07-05 16:43 UTC (permalink / raw)
To: Paul Mundt
Cc: Linus Torvalds, Wu Zhangjin, linux-media, linux-kernel,
linux-mips, Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki,
Andrew Morton, Ralf Baechle, ????, zhangfx
On Mon, 6 Jul 2009 00:25:57 +0900
Paul Mundt <lethal@linux-sh.org> wrote:
> Ok, here is an updated version with an updated matroxfb and the sm501fb
> change reverted.
>
> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
>
Here is a patch which should fix problem with sm501fb driver:
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index 16d4f4c..924d794 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -1540,9 +1540,6 @@ static int sm501fb_init_fb(struct fb_info *fb,
if (ret)
dev_err(info->dev, "check_var() failed on initial setup?\n");
- /* ensure we've activated our new configuration */
- (fb->fbops->fb_set_par)(fb);
-
return 0;
}
Paul, please test it (without additional initialization of the mm_lock mutext). I will post the patch
if it works for you.
An issue here is that these drivers calls fb_set_par() function (or part of it as the sisfb driver)
but the register_framebuffer() calls the fb_set_par() also after all structures are set up. There
should be no need to call the fb_set_par() just before the register_framebuffer().
The matroxfb driver is quite far from standard driver framework by now. I vote for fixing it
by adding this early initialization of the mm_mutex for now.
Kind regards,
Krzysztof
----------------------------------------------------------------------
Promocja ubezpieczen komunikacyjnych Ergo Hestia. Sprawdz!
http://link.interia.pl/f222f
^ permalink raw reply related [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-05 16:18 ` Krzysztof Helt
@ 2009-07-06 1:13 ` Wu Zhangjin
2009-07-06 14:50 ` Krzysztof Helt
0 siblings, 1 reply; 14+ messages in thread
From: Wu Zhangjin @ 2009-07-06 1:13 UTC (permalink / raw)
To: Krzysztof Helt
Cc: Paul Mundt, Linus Torvalds, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
Hi,
On Sun, 2009-07-05 at 18:18 +0200, Krzysztof Helt wrote:
> On Mon, 6 Jul 2009 00:25:57 +0900
> Paul Mundt <lethal@linux-sh.org> wrote:
>
> > On Sun, Jul 05, 2009 at 08:19:40AM -0700, Linus Torvalds wrote:
> > >
> > >
> > > On Mon, 6 Jul 2009, Paul Mundt wrote:
> > > > >
> > > > > Why not "lock" as well?
> > > >
> > > > I had that initially, but matroxfb will break if we do that, and
> > > > presently nothing cares about trying to take ->lock that early on.
> > >
> > > I really would rather have consistency than some odd rules like that.
> > >
> > > In particular - if matroxfb is different and needs its own lock
> > > initialization because it doesn't use the common allocation routine, then
> > > please make _that_ consistent too. Rather than have it special-case just
> > > one lock that it needs to initialize separately, make it clear that since
> > > it does its own allocations it needs to initialize _everything_
> > > separately.
> > >
> > Ok, here is an updated version with an updated matroxfb and the sm501fb
> > change reverted.
> >
> > Signed-off-by: Paul Mundt <lethal@linux-sh.org>
> >
> > ---
> >
>
> This is incorrect way to fix this as some drivers do not use the framebuffer_alloc()
> at all. They use global (for a file) fb_info structure. I have done some cleanups to
> the fbdev layer before the 2.6.31 and there should no drivers which uses kmalloc or
> kzalloc to allocate the fb_info (your patch would break these drivers too).
>
> A root of the whole mm_lock issue is that the fb_mmap() BKL protected two fb_info
> fields which were never protected when set. I changed this by add the mm_lock
> around these fields but only in drivers which modified this fields AFTER call
> to the register_framebuffer(). Some drivers set these fields using the same
> function before and after the register_framebuffer(). I strongly believe that
> setting these fields before the register_framebuffer() is wrong or redundant for
> these drivers. See my fix for the sisfb driver below.
>
> I have tested the patch below. Wu Zhangjin, can you also confirm that this
> works for you (without your patch)?
>
This patch also works for me, thanks!
Regards,
Wu Zhangjin
> I will look into the matroxfb and sm501fb drivers now. The same problem is
> already fixed for the mx3fb driver and the patch is sent to Andrew Morton.
>
> Regards,
> Krzysztof
>
>
> From: Krzysztof Helt <krzysztof.h1@wp.pl>
>
> Remove redundant call to the sisfb_get_fix() before sis frambuffer is registered.
>
> This fixes a problem with uninitialized the fb_info->mm_lock mutex.
>
> Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> ---
>
> diff -urp linux-ref/drivers/video/sis/sis_main.c linux-next/drivers/video/sis/sis_main.c
> --- linux-ref/drivers/video/sis/sis_main.c 2009-07-01 18:07:05.000000000 +0200
> +++ linux-next/drivers/video/sis/sis_main.c 2009-07-05 17:20:33.000000000 +0200
> @@ -6367,7 +6367,6 @@ error_3: vfree(ivideo->bios_abase);
> sis_fb_info->fix = ivideo->sisfb_fix;
> sis_fb_info->screen_base = ivideo->video_vbase + ivideo->video_offset;
> sis_fb_info->fbops = &sisfb_ops;
> - sisfb_get_fix(&sis_fb_info->fix, -1, sis_fb_info);
> sis_fb_info->pseudo_palette = ivideo->pseudo_palette;
>
> fb_alloc_cmap(&sis_fb_info->cmap, 256 , 0);
>
>
>
> ----------------------------------------------------------------------
> Najlepsze OC i AC tylko w Ergo Hestia
> http://link.interia.pl/f222
>
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-06 1:13 ` Wu Zhangjin
@ 2009-07-06 14:50 ` Krzysztof Helt
2009-07-06 16:29 ` Linus Torvalds
0 siblings, 1 reply; 14+ messages in thread
From: Krzysztof Helt @ 2009-07-06 14:50 UTC (permalink / raw)
To: wuzhangjin
Cc: Paul Mundt, Linus Torvalds, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Mon, 06 Jul 2009 09:13:11 +0800
Wu Zhangjin <wuzhangjin@gmail.com> wrote:
> Hi,
>
>
> This patch also works for me, thanks!
>
> Regards,
> Wu Zhangjin
>
Who should I send this patch to be included as a 2.6.31 regression fix?
Regards,
Krzysztof
> >
> > From: Krzysztof Helt <krzysztof.h1@wp.pl>
> >
> > Remove redundant call to the sisfb_get_fix() before sis frambuffer is registered.
> >
> > This fixes a problem with uninitialized the fb_info->mm_lock mutex.
> >
> > Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> > ---
> >
> > diff -urp linux-ref/drivers/video/sis/sis_main.c linux-next/drivers/video/sis/sis_main.c
> > --- linux-ref/drivers/video/sis/sis_main.c 2009-07-01 18:07:05.000000000 +0200
> > +++ linux-next/drivers/video/sis/sis_main.c 2009-07-05 17:20:33.000000000 +0200
> > @@ -6367,7 +6367,6 @@ error_3: vfree(ivideo->bios_abase);
> > sis_fb_info->fix = ivideo->sisfb_fix;
> > sis_fb_info->screen_base = ivideo->video_vbase + ivideo->video_offset;
> > sis_fb_info->fbops = &sisfb_ops;
> > - sisfb_get_fix(&sis_fb_info->fix, -1, sis_fb_info);
> > sis_fb_info->pseudo_palette = ivideo->pseudo_palette;
> >
> > fb_alloc_cmap(&sis_fb_info->cmap, 256 , 0);
> >
> >
> >
> > ----------------------------------------------------------------------
> > Najlepsze OC i AC tylko w Ergo Hestia
> > http://link.interia.pl/f222
> >
>
>
----------------------------------------------------------------------
Najlepsze OC i AC tylko w Ergo Hestia
http://link.interia.pl/f222
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking"
2009-07-06 14:50 ` Krzysztof Helt
@ 2009-07-06 16:29 ` Linus Torvalds
0 siblings, 0 replies; 14+ messages in thread
From: Linus Torvalds @ 2009-07-06 16:29 UTC (permalink / raw)
To: Krzysztof Helt
Cc: wuzhangjin, Paul Mundt, linux-media, linux-kernel, linux-mips,
Krzysztof Helt, Peter Zijlstra, Rafael J. Wysocki, Andrew Morton,
Ralf Baechle, ????, zhangfx
On Mon, 6 Jul 2009, Krzysztof Helt wrote:
>
> Who should I send this patch to be included as a 2.6.31 regression fix?
Just send the patches to me. I've got the patch, but no changelog, and so
I'd like to see them again, with changelogs and the proper "Acked-by:" or
"Tested-by" lines etc.
Linus
^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2009-07-06 16:37 UTC | newest]
Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-07-05 9:11 [BUG] drivers/video/sis: deadlock introduced by "fbdev: add mutex for fb_mmap locking" Wu Zhangjin
2009-07-05 14:19 ` Linus Torvalds
2009-07-05 14:52 ` Paul Mundt
2009-07-05 14:56 ` Linus Torvalds
2009-07-05 15:01 ` Paul Mundt
2009-07-05 15:19 ` Linus Torvalds
2009-07-05 15:25 ` Paul Mundt
2009-07-05 15:32 ` Linus Torvalds
2009-07-05 16:18 ` Krzysztof Helt
2009-07-06 1:13 ` Wu Zhangjin
2009-07-06 14:50 ` Krzysztof Helt
2009-07-06 16:29 ` Linus Torvalds
2009-07-05 16:43 ` Krzysztof Helt
2009-07-05 15:05 ` Krzysztof Helt
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