Messages in this thread | | | From | Olaf Dietsche <olaf.dietsche#> | Subject | Re: [PATCH] 2.5.46: access permission filesystem | Date | Sun, 10 Nov 2002 16:56:09 +0100 |
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Hi Ben,
Ben Clifford <benc@hawaga.org.uk> writes:
> I've just applied this to 2.5.46, and I'm building accessfs as modules. > > During boot (my scripts do a probe for the accessfs modules), I get: > > ==== > > Debug: sleeping function called from illegal context at mm/slab.c:1304 > Call Trace: [stack dump]
thanks for this report. Unfortunately, I can't reproduce this stack dump. I just built and booted a kernel with accessfs enabled as a module. Both insmod and modprobe work here, so there must be some additional condition, patch or config option to cause this.
> The proc/access/net/ip/bind ports appear ok and I can change permissions > on them. (although I haven't tested to see if their permissions actually > have effect).
At least this is working. Good to hear :-)
> I also get > > Debug: sleeping function called from illegal context at mm/slab.c:1304 > Call Trace: [stack dump] > > followed by: > > Debug: sleeping function called from illegal context at mm/slab.c:1304 > Call Trace: [stack dump] > > There is already a security framework initialized, register_security > failed.
You must build CONFIG_SECURITY_CAPABILITIES as a module or disable it for usercaps to work. Usercaps employ LSM and is built as a security module. This means, until there's a way to stack lsm security modules, there must be no other security module loaded.
I append my .config as a reference below.
> The directory /proc/access/capabilities appears, but it has no contents.
Since usercaps cannot be loaded, this is expected and does no harm.
There might be problems with SMP. I have added spin_locks recently and it works here on UP, but I have no SMP for testing. So there might be some bugs in my locking code.
Regards, Olaf.
CONFIG_X86=y CONFIG_MMU=y CONFIG_SWAP=y CONFIG_UID16=y CONFIG_GENERIC_ISA_DMA=y CONFIG_EXPERIMENTAL=y CONFIG_NET=y CONFIG_SYSVIPC=y CONFIG_SYSCTL=y CONFIG_MODULES=y CONFIG_MODVERSIONS=y CONFIG_KMOD=y CONFIG_M686=y CONFIG_X86_CMPXCHG=y CONFIG_X86_XADD=y CONFIG_X86_L1_CACHE_SHIFT=5 CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_X86_PPRO_FENCE=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_TSC=y CONFIG_X86_GOOD_APIC=y CONFIG_X86_USE_PPRO_CHECKSUM=y CONFIG_X86_UP_APIC=y CONFIG_X86_UP_IOAPIC=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y CONFIG_X86_MCE=y CONFIG_X86_MCE_NONFATAL=y CONFIG_NOHIGHMEM=y CONFIG_MTRR=y CONFIG_ACPI=y CONFIG_ACPI_BOOT=y CONFIG_ACPI_FAN=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_THERMAL=y CONFIG_ACPI_DEBUG=y CONFIG_ACPI_BUS=y CONFIG_ACPI_INTERPRETER=y CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_PCI=y CONFIG_ACPI_SYSTEM=y CONFIG_PM=y CONFIG_PCI=y CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_NAMES=y CONFIG_ISA=y CONFIG_KCORE_ELF=y CONFIG_BINFMT_AOUT=m CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m CONFIG_PARPORT=m CONFIG_PARPORT_PC=m CONFIG_PARPORT_PC_CML1=m CONFIG_BLK_DEV_FD=m CONFIG_BLK_DEV_LOOP=m CONFIG_LBD=y CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y CONFIG_BLK_DEV_IDEDISK=y CONFIG_BLK_DEV_IDECD=m CONFIG_BLK_DEV_IDEPCI=y CONFIG_BLK_DEV_GENERIC=y CONFIG_IDEPCI_SHARE_IRQ=y CONFIG_BLK_DEV_IDEDMA_PCI=y CONFIG_IDEDMA_PCI_AUTO=y CONFIG_BLK_DEV_IDEDMA=y CONFIG_BLK_DEV_ADMA=y CONFIG_BLK_DEV_VIA82CXXX=y CONFIG_IDEDMA_AUTO=y CONFIG_BLK_DEV_IDE_MODES=y CONFIG_PACKET=m CONFIG_NETFILTER=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_INET_ECN=y CONFIG_SYN_COOKIES=y CONFIG_NET_HOOKS=y CONFIG_IPV6_SCTP__=y CONFIG_NETDEVICES=y CONFIG_NET_ETHERNET=y CONFIG_NET_PCI=y CONFIG_8139TOO=m CONFIG_PPP=m CONFIG_PPP_ASYNC=m CONFIG_PPP_DEFLATE=m CONFIG_PPP_BSDCOMP=m CONFIG_PPPOE=m CONFIG_INPUT=y CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_PSAUX=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 CONFIG_SOUND_GAMEPORT=y CONFIG_SERIO=y CONFIG_SERIO_I8042=y CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=m CONFIG_MOUSE_SERIAL=m CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_CORE=y CONFIG_UNIX98_PTYS=y CONFIG_UNIX98_PTY_COUNT=256 CONFIG_PRINTER=m CONFIG_I2C=m CONFIG_I2C_CHARDEV=m CONFIG_I2C_PROC=m CONFIG_FAT_FS=m CONFIG_MSDOS_FS=m CONFIG_VFAT_FS=m CONFIG_TMPFS=y CONFIG_RAMFS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_PROC_FS=y CONFIG_DEVPTS_FS=y CONFIG_EXT2_FS=y CONFIG_ACCESS_FS=m CONFIG_ACCESSFS_USER_PORTS=m CONFIG_ACCESSFS_PROT_SOCK=1024 CONFIG_ACCESSFS_USER_CAPABILITIES=m CONFIG_NFS_FS=m CONFIG_NFSD=m CONFIG_SUNRPC=m CONFIG_LOCKD=m CONFIG_EXPORTFS=m CONFIG_MSDOS_PARTITION=y CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" CONFIG_NLS_CODEPAGE_437=m CONFIG_NLS_CODEPAGE_850=m CONFIG_NLS_CODEPAGE_1250=m CONFIG_NLS_ISO8859_1=m CONFIG_NLS_ISO8859_15=m CONFIG_NLS_UTF8=m CONFIG_VGA_CONSOLE=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_SLAB=y CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_SPINLOCK=y CONFIG_KALLSYMS=y CONFIG_X86_EXTRA_IRQS=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_MPPARSE=y CONFIG_SECURITY_CAPABILITIES=m CONFIG_ZLIB_INFLATE=m CONFIG_ZLIB_DEFLATE=m CONFIG_X86_BIOS_REBOOT=y
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