I want to use UML because I'm building a little uclibc-based distro that has a problem when the system it's building on has a kernel older than the one it's building. I'm testing the build under knoppix (2.6.7 kernel) and building a C library against Maszur's 2.6.9 or 2.6.10 kernel headers, and as soon as I try to run any of the utilities linked against this under the old kernel, they segfault. Obvious solution: instead of doing a chroot for the second half of the build, fire up User Mode Linux built from the newer kernel.
Unfortunately, it hasn't been that easy. Using the stock 2.6.9 and 2.6.10 kernels, I built a fairly stripped down version of UML (the config I just used for 2.6.10 is attached), and ran it against the root partition of my little "firmware linux" distro (uclibc based) like so: ./vmlinux rootfstype=hostfs rootflags=/home/knoppix/newbuild/build \ init=/bin/sh (A copy of that root partition is available on request; the bzipped tarball is about 12 megabytes. Or you could concievably build a "somewhat out of date but still shows the problem" version of it yourself from the stuff up on "http://www.landley.net/code/firmware";. Yes this is a strange environment, it's a development system with gcc and binutils, but I replaced all the GNU utilities with busybox. Yes, I got it to work. Mostly. :) Under the UML built from stock 2.6.9 sources, after some tweaking I got it to sort of boot and give me a shell prompt about 1/3 of the time (the other 2/3 of the time it paniced during boot due to various race conditions, but trying it several times in a row usually got me to the shell prompt). I couldn't figure out any way to make it start with a readable hostfs by default, but "mount -o remount,rw / /" once it was up seemed to do the trick, and I can put that in an init script no problem. (And yes it worked: I could create files and have them show up in the host system.) But when trying to compile "hello world", gcc died saying it couldn't find ld. This exact filesystem worked fine chrooting into it on the host kernel, a knoppix system running 2.6.7. Gcc worked great, my whole distro can recompile itself under itself. (For the moment, I'm working around the problem that makes me want to use UML by using maszur's old 2.6.6 kernel headers to build uclibc against.) So I thought "ok, they'll fix it up in 2.6.10". My first attempt at building UML from that at work the build broke saying it had a duplicate symbol definition (even after make clean). Trying again with a clean tarball and not switching so much .config stuff off, I got a UML that worked enough to let me run it against a Red Hat Enterprise Server 2.1 partition I had lying around, which actually built a small software package successfully (if very, very slowly: a dual 3ghz pentium 4 compiling slower than my 700 mhz laptop). But it hung hard (and reproducibly, after a kill and a restart) when I tried to tab complete something in bash. Had to kill it from another window. Oh, and it always dumped a stack trace on bootup, right before it gave me a shell prompt. I don't know why. So now I'm trying it on my laptop. I compiled with the attached configuration (again, stock 2.6.10 source), ran it with a hostfs root partition pointing at my little uclibc system, and it panics on startup every time. So far, I've seen three different types of panics at different points in the boot process: mconsole (version 2) initialized on /home/knoppix/.uml/WGIHE3/mconsole audit: initializing netlink socket (disabled) audit(300.210:0): initialized Initializing Cryptographic API Kernel panic - not syncing: fix_range fixing wrong address space, current = 0xa0cb90a0 mconsole (version 2) initialized on /home/knoppix/.uml/0o1hM7/mconsole Kernel panic - not syncing: read of switch_pipe failed, errno = 9 And another one that's basically the second one with errno=0. What I haven't seen yet is the shell prompt. The host system (my laptop) has been steady as a rock for three months, it's not bad memory or anything. I'm guessing the 2.6.9 instabity might have been because I'm trying to use hostfs, but the panics I'm getting with 2.6.10 happen before it tries to mount the root partition. I'm probably doing something wrong, but I have no idea what. So my first question: Is there something other than the released kernel I should be trying? There used to be a seperate UML tree, but all I can find is 2.4, which doesn't interest me... Jeff's patch directory (which I found through his blog) is almost entirely x86-64 patches, and my laptop's x86. If I should be over on the -user list, I can do that, but I know exactly what I want to get this thing to do, and at this point expect to have to poke around in the code to get it to actually do it. I've read through tutorials on setting up virtual crossover cables and virtual hubs and it doesn't apply to me. I'm trying for a VERY simple setup: my UML doesn't need more networking than loopback, doesn't need swap, doesn't need module support... It doesn't need more than /dev/console attached to stdin and stdout, and enough of a root partition for me to compile stuff under it in a way that the syscalls made by a uclibc more recent than the kernel in the host system don't cause a problem. Rob
# # Automatically generated make config: don't edit # Linux kernel version: 2.6.10 # Sat Jan 8 18:27:50 2005 # CONFIG_GENERIC_HARDIRQS=y CONFIG_USERMODE=y CONFIG_MMU=y CONFIG_UID16=y CONFIG_RWSEM_GENERIC_SPINLOCK=y # # UML-specific options # CONFIG_MODE_TT=y CONFIG_MODE_SKAS=y CONFIG_NET=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_HOSTFS=y # CONFIG_HPPFS is not set CONFIG_MCONSOLE=y # CONFIG_HOST_2G_2G is not set # CONFIG_SMP is not set CONFIG_NEST_LEVEL=0 CONFIG_KERNEL_HALF_GIGS=1 # CONFIG_HIGHMEM is not set CONFIG_KERNEL_STACK_ORDER=2 CONFIG_UML_REAL_TIME_CLOCK=y # # Code maturity level options # CONFIG_EXPERIMENTAL=y # CONFIG_CLEAN_COMPILE is not set CONFIG_BROKEN=y CONFIG_BROKEN_ON_SMP=y # # General setup # CONFIG_LOCALVERSION="" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set CONFIG_SYSCTL=y CONFIG_AUDIT=y CONFIG_LOG_BUF_SHIFT=15 CONFIG_HOTPLUG=y CONFIG_KOBJECT_UEVENT=y # CONFIG_IKCONFIG is not set # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set CONFIG_FUTEX=y CONFIG_EPOLL=y # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SHMEM=y CONFIG_CC_ALIGN_FUNCTIONS=0 CONFIG_CC_ALIGN_LABELS=0 CONFIG_CC_ALIGN_LOOPS=0 CONFIG_CC_ALIGN_JUMPS=0 # CONFIG_TINY_SHMEM is not set # # Loadable module support # # CONFIG_MODULES is not set # # Generic Driver Options # CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set # # Character Devices # CONFIG_STDIO_CONSOLE=y # CONFIG_SSL is not set CONFIG_FD_CHAN=y # CONFIG_NULL_CHAN is not set # CONFIG_PORT_CHAN is not set # CONFIG_PTY_CHAN is not set # CONFIG_TTY_CHAN is not set # CONFIG_XTERM_CHAN is not set CONFIG_NOCONFIG_CHAN=y CONFIG_CON_ZERO_CHAN="fd:0,fd:1" CONFIG_CON_CHAN="xterm" CONFIG_SSL_CHAN="pty" CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_WATCHDOG is not set # CONFIG_UML_SOUND is not set # CONFIG_SOUND is not set # CONFIG_HOSTAUDIO is not set # # Block Devices # CONFIG_BLK_DEV_UBD=y # CONFIG_BLK_DEV_UBD_SYNC is not set CONFIG_BLK_DEV_COW_COMMON=y CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_NBD=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" # CONFIG_MMAPPER is not set # # IO Schedulers # CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y CONFIG_NETDEVICES=y # # UML Network Devices # # CONFIG_UML_NET is not set # # Networking support # # # Networking options # CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_NETLINK_DEV=y CONFIG_UNIX=y CONFIG_NET_KEY=y CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_ADVANCED_ROUTER=y CONFIG_IP_MULTIPLE_TABLES=y CONFIG_IP_ROUTE_FWMARK=y # CONFIG_IP_ROUTE_MULTIPATH is not set # CONFIG_IP_ROUTE_VERBOSE is not set # CONFIG_IP_PNP is not set CONFIG_NET_IPIP=y CONFIG_NET_IPGRE=y # CONFIG_NET_IPGRE_BROADCAST is not set # CONFIG_IP_MROUTE is not set # CONFIG_ARPD is not set CONFIG_SYN_COOKIES=y CONFIG_INET_AH=y CONFIG_INET_ESP=y CONFIG_INET_IPCOMP=y CONFIG_INET_TUNNEL=y CONFIG_IP_TCPDIAG=y CONFIG_IP_TCPDIAG_IPV6=y # # IP: Virtual Server Configuration # CONFIG_IP_VS=y # CONFIG_IP_VS_DEBUG is not set CONFIG_IP_VS_TAB_BITS=12 # # IPVS transport protocol load balancing support # CONFIG_IP_VS_PROTO_TCP=y CONFIG_IP_VS_PROTO_UDP=y CONFIG_IP_VS_PROTO_ESP=y CONFIG_IP_VS_PROTO_AH=y # # IPVS scheduler # CONFIG_IP_VS_RR=y CONFIG_IP_VS_WRR=y CONFIG_IP_VS_LC=y CONFIG_IP_VS_WLC=y CONFIG_IP_VS_LBLC=y CONFIG_IP_VS_LBLCR=y CONFIG_IP_VS_DH=y CONFIG_IP_VS_SH=y CONFIG_IP_VS_SED=y CONFIG_IP_VS_NQ=y # # IPVS application helper # CONFIG_IP_VS_FTP=y CONFIG_IPV6=y CONFIG_IPV6_PRIVACY=y CONFIG_INET6_AH=y CONFIG_INET6_ESP=y CONFIG_INET6_IPCOMP=y CONFIG_INET6_TUNNEL=y CONFIG_IPV6_TUNNEL=y CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set CONFIG_BRIDGE_NETFILTER=y # # IP: Netfilter Configuration # CONFIG_IP_NF_CONNTRACK=y # CONFIG_IP_NF_CT_ACCT is not set # CONFIG_IP_NF_CONNTRACK_MARK is not set # CONFIG_IP_NF_CT_PROTO_SCTP is not set CONFIG_IP_NF_FTP=y CONFIG_IP_NF_IRC=y CONFIG_IP_NF_TFTP=y CONFIG_IP_NF_AMANDA=y CONFIG_IP_NF_QUEUE=y CONFIG_IP_NF_IPTABLES=y CONFIG_IP_NF_MATCH_LIMIT=y CONFIG_IP_NF_MATCH_IPRANGE=y CONFIG_IP_NF_MATCH_MAC=y CONFIG_IP_NF_MATCH_PKTTYPE=y CONFIG_IP_NF_MATCH_MARK=y CONFIG_IP_NF_MATCH_MULTIPORT=y CONFIG_IP_NF_MATCH_TOS=y CONFIG_IP_NF_MATCH_RECENT=y CONFIG_IP_NF_MATCH_ECN=y CONFIG_IP_NF_MATCH_DSCP=y CONFIG_IP_NF_MATCH_AH_ESP=y CONFIG_IP_NF_MATCH_LENGTH=y CONFIG_IP_NF_MATCH_TTL=y CONFIG_IP_NF_MATCH_TCPMSS=y CONFIG_IP_NF_MATCH_HELPER=y CONFIG_IP_NF_MATCH_STATE=y CONFIG_IP_NF_MATCH_CONNTRACK=y CONFIG_IP_NF_MATCH_OWNER=y CONFIG_IP_NF_MATCH_PHYSDEV=y # CONFIG_IP_NF_MATCH_ADDRTYPE is not set # CONFIG_IP_NF_MATCH_REALM is not set # CONFIG_IP_NF_MATCH_SCTP is not set # CONFIG_IP_NF_MATCH_COMMENT is not set # CONFIG_IP_NF_MATCH_HASHLIMIT is not set CONFIG_IP_NF_FILTER=y CONFIG_IP_NF_TARGET_REJECT=y CONFIG_IP_NF_TARGET_LOG=y CONFIG_IP_NF_TARGET_ULOG=y CONFIG_IP_NF_TARGET_TCPMSS=y CONFIG_IP_NF_NAT=y CONFIG_IP_NF_NAT_NEEDED=y CONFIG_IP_NF_TARGET_MASQUERADE=y CONFIG_IP_NF_TARGET_REDIRECT=y CONFIG_IP_NF_TARGET_NETMAP=y CONFIG_IP_NF_TARGET_SAME=y CONFIG_IP_NF_NAT_LOCAL=y CONFIG_IP_NF_NAT_SNMP_BASIC=y CONFIG_IP_NF_NAT_IRC=y CONFIG_IP_NF_NAT_FTP=y CONFIG_IP_NF_NAT_TFTP=y CONFIG_IP_NF_NAT_AMANDA=y CONFIG_IP_NF_MANGLE=y CONFIG_IP_NF_TARGET_TOS=y CONFIG_IP_NF_TARGET_ECN=y CONFIG_IP_NF_TARGET_DSCP=y CONFIG_IP_NF_TARGET_MARK=y CONFIG_IP_NF_TARGET_CLASSIFY=y CONFIG_IP_NF_RAW=y CONFIG_IP_NF_TARGET_NOTRACK=y CONFIG_IP_NF_ARPTABLES=y CONFIG_IP_NF_ARPFILTER=y CONFIG_IP_NF_ARP_MANGLE=y # # IPv6: Netfilter Configuration # CONFIG_IP6_NF_QUEUE=y CONFIG_IP6_NF_IPTABLES=y CONFIG_IP6_NF_MATCH_LIMIT=y CONFIG_IP6_NF_MATCH_MAC=y CONFIG_IP6_NF_MATCH_RT=y CONFIG_IP6_NF_MATCH_OPTS=y CONFIG_IP6_NF_MATCH_FRAG=y CONFIG_IP6_NF_MATCH_HL=y CONFIG_IP6_NF_MATCH_MULTIPORT=y CONFIG_IP6_NF_MATCH_OWNER=y CONFIG_IP6_NF_MATCH_MARK=y CONFIG_IP6_NF_MATCH_IPV6HEADER=y CONFIG_IP6_NF_MATCH_AHESP=y CONFIG_IP6_NF_MATCH_LENGTH=y CONFIG_IP6_NF_MATCH_EUI64=y # CONFIG_IP6_NF_MATCH_PHYSDEV is not set CONFIG_IP6_NF_FILTER=y CONFIG_IP6_NF_TARGET_LOG=y CONFIG_IP6_NF_MANGLE=y CONFIG_IP6_NF_TARGET_MARK=y CONFIG_IP6_NF_RAW=y # # DECnet: Netfilter Configuration # CONFIG_DECNET_NF_GRABULATOR=y # # Bridge: Netfilter Configuration # CONFIG_BRIDGE_NF_EBTABLES=y CONFIG_BRIDGE_EBT_BROUTE=y CONFIG_BRIDGE_EBT_T_FILTER=y CONFIG_BRIDGE_EBT_T_NAT=y CONFIG_BRIDGE_EBT_802_3=y CONFIG_BRIDGE_EBT_AMONG=y CONFIG_BRIDGE_EBT_ARP=y CONFIG_BRIDGE_EBT_IP=y CONFIG_BRIDGE_EBT_LIMIT=y CONFIG_BRIDGE_EBT_MARK=y CONFIG_BRIDGE_EBT_PKTTYPE=y CONFIG_BRIDGE_EBT_STP=y CONFIG_BRIDGE_EBT_VLAN=y CONFIG_BRIDGE_EBT_ARPREPLY=y CONFIG_BRIDGE_EBT_DNAT=y CONFIG_BRIDGE_EBT_MARK_T=y CONFIG_BRIDGE_EBT_REDIRECT=y CONFIG_BRIDGE_EBT_SNAT=y CONFIG_BRIDGE_EBT_LOG=y CONFIG_XFRM=y CONFIG_XFRM_USER=y # # SCTP Configuration (EXPERIMENTAL) # CONFIG_IP_SCTP=y # CONFIG_SCTP_DBG_MSG is not set # CONFIG_SCTP_DBG_OBJCNT is not set CONFIG_SCTP_HMAC_NONE=y # CONFIG_SCTP_HMAC_SHA1 is not set # CONFIG_SCTP_HMAC_MD5 is not set CONFIG_ATM=y CONFIG_ATM_CLIP=y CONFIG_ATM_CLIP_NO_ICMP=y CONFIG_ATM_LANE=y CONFIG_ATM_MPOA=y CONFIG_ATM_BR2684=y # CONFIG_ATM_BR2684_IPFILTER is not set CONFIG_BRIDGE=y CONFIG_VLAN_8021Q=y CONFIG_DECNET=y CONFIG_DECNET_ROUTER=y CONFIG_DECNET_ROUTE_FWMARK=y CONFIG_LLC=y CONFIG_LLC2=y CONFIG_IPX=y CONFIG_IPX_INTERN=y CONFIG_ATALK=y CONFIG_DEV_APPLETALK=y CONFIG_IPDDP=y CONFIG_IPDDP_ENCAP=y CONFIG_IPDDP_DECAP=y CONFIG_X25=y CONFIG_LAPB=y # CONFIG_NET_DIVERT is not set CONFIG_ECONET=y CONFIG_ECONET_AUNUDP=y CONFIG_ECONET_NATIVE=y CONFIG_WAN_ROUTER=y # # QoS and/or fair queueing # CONFIG_NET_SCHED=y CONFIG_NET_SCH_CLK_JIFFIES=y # CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set # CONFIG_NET_SCH_CLK_CPU is not set CONFIG_NET_SCH_CBQ=y CONFIG_NET_SCH_HTB=y CONFIG_NET_SCH_HFSC=y CONFIG_NET_SCH_ATM=y CONFIG_NET_SCH_PRIO=y CONFIG_NET_SCH_RED=y CONFIG_NET_SCH_SFQ=y CONFIG_NET_SCH_TEQL=y CONFIG_NET_SCH_TBF=y CONFIG_NET_SCH_GRED=y CONFIG_NET_SCH_DSMARK=y # CONFIG_NET_SCH_NETEM is not set CONFIG_NET_SCH_INGRESS=y CONFIG_NET_QOS=y CONFIG_NET_ESTIMATOR=y CONFIG_NET_CLS=y CONFIG_NET_CLS_TCINDEX=y CONFIG_NET_CLS_ROUTE4=y CONFIG_NET_CLS_ROUTE=y CONFIG_NET_CLS_FW=y CONFIG_NET_CLS_U32=y # CONFIG_CLS_U32_PERF is not set # CONFIG_NET_CLS_IND is not set CONFIG_NET_CLS_RSVP=y CONFIG_NET_CLS_RSVP6=y # CONFIG_NET_CLS_ACT is not set CONFIG_NET_CLS_POLICE=y # # Network testing # CONFIG_NET_PKTGEN=y # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_ETHERTAP is not set # # Ethernet (10 or 100Mbit) # # CONFIG_NET_ETHERNET is not set # # Ethernet (1000 Mbit) # # # Ethernet (10000 Mbit) # # # Token Ring devices # # # Wireless LAN (non-hamradio) # # CONFIG_NET_RADIO is not set # # PCMCIA network device support # # CONFIG_NET_PCMCIA is not set # # Wan interfaces # # CONFIG_WAN is not set # # ATM drivers # # CONFIG_ATM_TCP is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # # File systems # CONFIG_EXT2_FS=y # CONFIG_EXT2_FS_XATTR is not set CONFIG_EXT3_FS=y # CONFIG_EXT3_FS_XATTR is not set CONFIG_JBD=y # CONFIG_JBD_DEBUG is not set # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_XFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS 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_SYSFS=y # CONFIG_DEVFS_FS is not set # CONFIG_DEVPTS_FS_XATTR is not set # CONFIG_TMPFS is not set # CONFIG_HUGETLBFS is not set # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # # Miscellaneous filesystems # # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set # # Network File Systems # # CONFIG_NFS_FS is not set # CONFIG_NFSD is not set # CONFIG_EXPORTFS 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 is not set CONFIG_MSDOS_PARTITION=y # # Native Language Support # # CONFIG_NLS is not set # # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set # # Cryptographic options # CONFIG_CRYPTO=y CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_NULL=y CONFIG_CRYPTO_MD4=y CONFIG_CRYPTO_MD5=y CONFIG_CRYPTO_SHA1=y CONFIG_CRYPTO_SHA256=y CONFIG_CRYPTO_SHA512=y # CONFIG_CRYPTO_WP512 is not set CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_BLOWFISH=y CONFIG_CRYPTO_TWOFISH=y CONFIG_CRYPTO_SERPENT=y CONFIG_CRYPTO_AES=y CONFIG_CRYPTO_CAST5=y CONFIG_CRYPTO_CAST6=y # CONFIG_CRYPTO_TEA is not set CONFIG_CRYPTO_ARC4=y # CONFIG_CRYPTO_KHAZAD is not set # CONFIG_CRYPTO_ANUBIS is not set CONFIG_CRYPTO_DEFLATE=y CONFIG_CRYPTO_MICHAEL_MIC=y CONFIG_CRYPTO_CRC32C=y # CONFIG_CRYPTO_TEST is not set # # Library routines # # CONFIG_CRC_CCITT is not set # CONFIG_CRC32 is not set CONFIG_LIBCRC32C=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y # # SCSI support # # CONFIG_SCSI is not set # # Multi-device support (RAID and LVM) # # CONFIG_MD is not set # # Memory Technology Devices (MTD) # # CONFIG_MTD is not set # CONFIG_INPUT is not set # # Kernel hacking # CONFIG_DEBUG_KERNEL=y CONFIG_MAGIC_SYSRQ=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_KOBJECT is not set # CONFIG_DEBUG_INFO is not set
