Hello,
I have been running UML for service jailing for a few months without any problem (host 2.6.7 + skas 2004-08-10 -- client 2.4.26 + uml-patch-2.4.26-3).
But since I compiled iptables into the kernel (a few weeks ago), some uml jails started to segaulft at random times (approx 1 segfault / 1-2 weeks).
When looking at the syslog of the crashed UML, I can't see anything weird.
I also tried with client 2.4.27 + uml-patch-2.4.27-1 with the same kernel config, but that does not resolve the problem.
The jails that I had crashing were an apache-jail, a postfix-jail and an ircd-jail.
Is there any known problem on running kernels with iptables support?
Since the kernel crashes only once in about 2 weeks, I am not ably to reproduce the segfault easily.
Greetings,
Michael De Nil
Here is my current kernel config:
# # Automatically generated by make menuconfig: don't edit # CONFIG_USERMODE=y # CONFIG_ISA is not set # CONFIG_SBUS is not set # CONFIG_PCI is not set CONFIG_UID16=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# # Code maturity level options # CONFIG_EXPERIMENTAL=y
# # General Setup # CONFIG_MODE_SKAS=y CONFIG_MODE_TT=y CONFIG_NET=y CONFIG_SYSVIPC=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_SYSCTL=y CONFIG_BINFMT_AOUT=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_HOSTFS=y CONFIG_HUMFS=y CONFIG_EXTERNFS=y CONFIG_HPPFS=y CONFIG_MCONSOLE=y CONFIG_MAGIC_SYSRQ=y # CONFIG_HOST_2G_2G is not set # CONFIG_UML_SMP is not set # CONFIG_SMP is not set CONFIG_NEST_LEVEL=0 CONFIG_KERNEL_HALF_GIGS=1 # CONFIG_HIGHMEM is not set CONFIG_PROC_MM=y CONFIG_KERNEL_STACK_ORDER=2 CONFIG_UML_REAL_TIME_CLOCK=y
# # Loadable module support # # CONFIG_MODULES is not set
# # Character Devices # CONFIG_STDIO_CONSOLE=y CONFIG_SSL=y CONFIG_FD_CHAN=y CONFIG_NULL_CHAN=y CONFIG_PORT_CHAN=y CONFIG_PTY_CHAN=y CONFIG_TTY_CHAN=y CONFIG_XTERM_CHAN=y CONFIG_CON_ZERO_CHAN="fd:0,fd:1" CONFIG_CON_CHAN="xterm" CONFIG_SSL_CHAN="pty" CONFIG_UNIX98_PTYS=y CONFIG_UNIX98_PTY_COUNT=256 # CONFIG_WATCHDOG is not set # CONFIG_WATCHDOG_NOWAYOUT is not set # CONFIG_SOFT_WATCHDOG is not set # CONFIG_UML_WATCHDOG is not set # CONFIG_UML_SOUND is not set # CONFIG_SOUND is not set # CONFIG_HOSTAUDIO is not set # CONFIG_TTY_LOG is not set
# # Block Devices # CONFIG_BLK_DEV_UBD=y # CONFIG_BLK_DEV_UBD_SYNC is not set # CONFIG_COW is not set CONFIG_COW_COMMON=y CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_NBD=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_INITRD=y # CONFIG_MMAPPER is not set CONFIG_NETDEVICES=y
# # Network Devices # CONFIG_UML_NET=y CONFIG_UML_NET_ETHERTAP=y CONFIG_UML_NET_TUNTAP=y CONFIG_UML_NET_SLIP=y CONFIG_UML_NET_SLIRP=y CONFIG_UML_NET_DAEMON=y CONFIG_UML_NET_MCAST=y # CONFIG_UML_NET_PCAP is not set CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set CONFIG_TUN=y CONFIG_PPP=y # CONFIG_PPP_MULTILINK is not set # CONFIG_PPP_FILTER is not set # CONFIG_PPP_ASYNC is not set # CONFIG_PPP_SYNC_TTY is not set # CONFIG_PPP_DEFLATE is not set # CONFIG_PPP_BSDCOMP is not set # CONFIG_PPPOE is not set # CONFIG_PPP_MPPE is not set CONFIG_SLIP=y # CONFIG_SLIP_COMPRESSED is not set # CONFIG_SLIP_SMART is not set # CONFIG_SLIP_MODE_SLIP6 is not set
# # Networking options # CONFIG_PACKET=y CONFIG_PACKET_MMAP=y # CONFIG_NETLINK_DEV is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set # CONFIG_FILTER is not set CONFIG_UNIX=y CONFIG_INET=y # CONFIG_IP_MULTICAST is not set # CONFIG_IP_ADVANCED_ROUTER is not set # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_ARPD is not set # CONFIG_INET_ECN is not set # CONFIG_SYN_COOKIES is not set
# # IP: Netfilter Configuration # CONFIG_IP_NF_CONNTRACK=y CONFIG_IP_NF_FTP=y CONFIG_IP_NF_AMANDA=y CONFIG_IP_NF_TFTP=y CONFIG_IP_NF_IRC=y CONFIG_IP_NF_QUEUE=y CONFIG_IP_NF_IPTABLES=y CONFIG_IP_NF_MATCH_LIMIT=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_UNCLEAN is not set # CONFIG_IP_NF_MATCH_OWNER is not set CONFIG_IP_NF_FILTER=y CONFIG_IP_NF_TARGET_REJECT=y # CONFIG_IP_NF_TARGET_MIRROR is not set 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_NAT_AMANDA=y # CONFIG_IP_NF_NAT_LOCAL is not set 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_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_LOG=y CONFIG_IP_NF_TARGET_ULOG=y CONFIG_IP_NF_TARGET_TCPMSS=y CONFIG_IP_NF_ARPTABLES=y CONFIG_IP_NF_ARPFILTER=y CONFIG_IP_NF_ARP_MANGLE=y
# # IP: Virtual Server Configuration # # CONFIG_IP_VS is not set # CONFIG_IPV6 is not set # CONFIG_KHTTPD is not set
# # SCTP Configuration (EXPERIMENTAL) # # CONFIG_IP_SCTP is not set # CONFIG_ATM is not set # CONFIG_VLAN_8021Q is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set
# # Appletalk devices # # CONFIG_DEV_APPLETALK is not set # CONFIG_DECNET is not set # CONFIG_BRIDGE is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_LLC is not set # CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_FASTROUTE is not set # CONFIG_NET_HW_FLOWCONTROL is not set
# # QoS and/or fair queueing # # CONFIG_NET_SCHED is not set
# # Network testing # # CONFIG_NET_PKTGEN is not set
# # File systems # CONFIG_QUOTA=y # CONFIG_QFMT_V2 is not set CONFIG_AUTOFS_FS=y CONFIG_AUTOFS4_FS=y CONFIG_REISERFS_FS=y # CONFIG_REISERFS_CHECK is not set # CONFIG_REISERFS_PROC_INFO is not set # CONFIG_ADFS_FS is not set # CONFIG_ADFS_FS_RW 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_BEFS_DEBUG is not set # CONFIG_BFS_FS is not set CONFIG_EXT3_FS=y CONFIG_JBD=y # CONFIG_JBD_DEBUG is not set CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y CONFIG_UMSDOS_FS=y CONFIG_VFAT_FS=y # CONFIG_EFS_FS is not set CONFIG_JFFS_FS=y CONFIG_JFFS_FS_VERBOSE=0 CONFIG_JFFS_PROC_FS=y CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 # CONFIG_CRAMFS is not set CONFIG_TMPFS=y CONFIG_RAMFS=y CONFIG_ISO9660_FS=y # CONFIG_JOLIET is not set # CONFIG_ZISOFS is not set # CONFIG_JFS_FS is not set # CONFIG_JFS_DEBUG is not set # CONFIG_JFS_STATISTICS is not set CONFIG_MINIX_FS=y # CONFIG_VXFS_FS is not set # CONFIG_NTFS_FS is not set # CONFIG_NTFS_RW is not set # CONFIG_HPFS_FS is not set CONFIG_PROC_FS=y CONFIG_DEVFS_FS=y CONFIG_DEVFS_MOUNT=y # CONFIG_DEVFS_DEBUG is not set CONFIG_DEVPTS_FS=y # CONFIG_QNX4FS_FS is not set # CONFIG_QNX4FS_RW is not set # CONFIG_ROMFS_FS is not set CONFIG_EXT2_FS=y # CONFIG_SYSV_FS is not set # CONFIG_UDF_FS is not set # CONFIG_UDF_RW is not set # CONFIG_UFS_FS is not set # CONFIG_UFS_FS_WRITE is not set # CONFIG_XFS_FS is not set # CONFIG_XFS_QUOTA is not set # CONFIG_XFS_RT is not set # CONFIG_XFS_TRACE is not set # CONFIG_XFS_DEBUG is not set
# # Network File Systems # # CONFIG_CODA_FS is not set # CONFIG_INTERMEZZO_FS is not set # CONFIG_NFS_FS is not set # CONFIG_NFS_V3 is not set # CONFIG_NFS_DIRECTIO is not set # CONFIG_ROOT_NFS is not set # CONFIG_NFSD is not set # CONFIG_NFSD_V3 is not set # CONFIG_NFSD_TCP is not set # CONFIG_SUNRPC is not set # CONFIG_LOCKD is not set # CONFIG_SMB_FS is not set # CONFIG_NCP_FS is not set # CONFIG_NCPFS_PACKET_SIGNING is not set # CONFIG_NCPFS_IOCTL_LOCKING is not set # CONFIG_NCPFS_STRONG is not set # CONFIG_NCPFS_NFS_NS is not set # CONFIG_NCPFS_OS2_NS is not set # CONFIG_NCPFS_SMALLDOS is not set # CONFIG_NCPFS_NLS is not set # CONFIG_NCPFS_EXTRAS is not set # CONFIG_ZISOFS_FS is not set
# # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y # CONFIG_SMB_NLS is not set CONFIG_NLS=y
# # Native Language Support # 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_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
# # SCSI support # CONFIG_SCSI=y # CONFIG_BLK_DEV_SD is not set # CONFIG_CHR_DEV_ST is not set # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set # CONFIG_SCSI_DEBUG_QUEUES is not set # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set CONFIG_SCSI_DEBUG=y
# # Multi-device support (RAID and LVM) # # CONFIG_MD is not set # CONFIG_BLK_DEV_MD is not set # CONFIG_MD_LINEAR is not set # CONFIG_MD_RAID0 is not set # CONFIG_MD_RAID1 is not set # CONFIG_MD_RAID5 is not set # CONFIG_MD_MULTIPATH is not set # CONFIG_BLK_DEV_LVM is not set
# # Memory Technology Devices (MTD) # CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set # CONFIG_MTD_PARTITIONS is not set # CONFIG_MTD_CONCAT is not set # CONFIG_MTD_REDBOOT_PARTS is not set # CONFIG_MTD_CMDLINE_PARTS is not set CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set # CONFIG_NFTL is not set
# # RAM/ROM/Flash chip drivers # # CONFIG_MTD_CFI is not set # CONFIG_MTD_JEDECPROBE is not set # CONFIG_MTD_GEN_PROBE is not set # CONFIG_MTD_CFI_INTELEXT is not set # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_CFI_STAA is not set # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set # CONFIG_MTD_OBSOLETE_CHIPS is not set # CONFIG_MTD_AMDSTD is not set # CONFIG_MTD_SHARP is not set # CONFIG_MTD_JEDEC is not set
# # Mapping drivers for chip access # # CONFIG_MTD_PHYSMAP is not set # CONFIG_MTD_PCI is not set # CONFIG_MTD_PCMCIA is not set
# # Self-contained MTD device drivers # # CONFIG_MTD_PMC551 is not set # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_MTDRAM is not set CONFIG_MTD_BLKMTD=y # CONFIG_MTD_DOC1000 is not set # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOCPROBE is not set
# # NAND Flash Device Drivers # # CONFIG_MTD_NAND is not set
# # Library routines # # CONFIG_CRC32 is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y
# # Cryptographic options # # CONFIG_CRYPTO is not set
# # Kernel hacking # CONFIG_DEBUG_SLAB=y CONFIG_DEBUGSYM=y CONFIG_PT_PROXY=y # CONFIG_GCOV is not set
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