modprobe problem

Sun Dec 2 06:59:11 UTC 2007

On Friday 30 November 2007 08:56, Josh England wrote:
> I'm trying busybox-1.8.2 and running into an issue that used to work
> just fine (in busybox-1.2.1).  I'm running busybox in an
> initrd/initramfs environment and trying to load kernel modules via
> modprobe.  A correct modules.dep file is in place, and insmod can load
> the module just fine, but modprobe returns:
>
> modprobe: failed to load module
>
> Any ideas?  This is running on a 2.6.18-7 (RedHat-based) kernel.  My
> busybox .config has:
>
> # Linux Module Utilities
> #
> CONFIG_INSMOD=y
> CONFIG_FEATURE_INSMOD_VERSION_CHECKING=y
> CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS=y
> CONFIG_FEATURE_INSMOD_LOADINKMEM=y
> # CONFIG_FEATURE_INSMOD_LOAD_MAP is not set
> # CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL is not set
> CONFIG_RMMOD=y
> CONFIG_LSMOD=y
> CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT=y
> CONFIG_MODPROBE=y
> CONFIG_FEATURE_MODPROBE_MULTIPLE_OPTIONS=y
> CONFIG_FEATURE_MODPROBE_FANCY_ALIAS=y
>
> #
> # Options common to multiple modutils
> #
> CONFIG_FEATURE_CHECK_TAINTED_MODULE=y
> CONFIG_FEATURE_2_4_MODULES=y
> CONFIG_FEATURE_2_6_MODULES=y
> # CONFIG_FEATURE_QUERY_MODULE_INTERFACE is not set
>
> Any ideas?

18.2 with your .config:

# strace -f -o strace.log ./busybox modprobe tcrypt

succeeds. Can you do the same and post your log?

My strace log is:

3572  execve("./busybox", ["./busybox", "modprobe", "tcrypt"], [/* 44 vars */]) = 0
3572  ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
3572  ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
3572  getuid32()                        = 0
3572  uname({sys="Linux", node="vda_lt", ...}) = 0
3572  brk(0)                            = 0x810b000
3572  brk(0x810c000)                    = 0x810c000
3572  open("/lib/modules/2.6.15-29-686/modules.dep", O_RDONLY|O_LARGEFILE) = 3
3572  read(3, "/lib/modules/2.6.15-29-686/usb/m"..., 1024) = 1024
3572  _llseek(3, -708, [316], SEEK_CUR) = 0
3572  read(3, "/lib/modules/2.6.15-29-686/madwi"..., 1024) = 1024
3572  _llseek(3, -917, [423], SEEK_CUR) = 0
3572  read(3, "/lib/modules/2.6.15-29-686/madwi"..., 1024) = 1024
3572  _llseek(3, -919, [528], SEEK_CUR) = 0
3572  read(3, "/lib/modules/2.6.15-29-686/madwi"..., 1024) = 1024
...
...
...
3572  _llseek(3, -41, [4916], SEEK_CUR) = 0
3572  read(3, "dm_mod 63256 3 dm_crypt, Live 0x"..., 1024) = 41
3572  read(3, "", 983)                  = 0
3572  read(3, "", 1024)                 = 0
3572  close(3)                          = 0
3572  vfork()                           = 3573
3572  wait4(3573,  <unfinished ...>
3573  execve("/home/vda/bin/insmod", ["insmod", "/lib/modules/2.6.15-29-686/kerne"...], [/* 44 vars */]) = -1 ENOENT (No such file or directory)
3573  execve("/usr/local/sbin/insmod", ["insmod", "/lib/modules/2.6.15-29-686/kerne"...], [/* 44 vars */]) = -1 ENOENT (No such file or directory)
3573  execve("/usr/local/bin/insmod", ["insmod", "/lib/modules/2.6.15-29-686/kerne"...], [/* 44 vars */]) = -1 ENOENT (No such file or directory)
3573  execve("/usr/sbin/insmod", ["insmod", "/lib/modules/2.6.15-29-686/kerne"...], [/* 44 vars */]) = -1 ENOENT (No such file or directory)
3573  execve("/usr/bin/insmod", ["insmod", "/lib/modules/2.6.15-29-686/kerne"...], [/* 44 vars */]) = -1 ENOENT (No such file or directory)
3573  execve("/sbin/insmod", ["insmod", "/lib/modules/2.6.15-29-686/kerne"...], [/* 44 vars */]) = 0
3573  uname({sys="Linux", node="vda_lt", ...}) = 0
3573  brk(0)                            = 0x804b000
3573  old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fa5000
3573  access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
3573  old_mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fa3000
3573  access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
3573  open("/etc/ld.so.cache", O_RDONLY) = 3
3573  fstat64(3, {st_mode=S_IFREG|0644, st_size=67511, ...}) = 0
3573  old_mmap(NULL, 67511, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f92000
3573  close(3)                          = 0
3573  access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
3573  open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3
3573  read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220O\1"..., 512) = 512
3573  fstat64(3, {st_mode=S_IFREG|0755, st_size=1232784, ...}) = 0
3573  old_mmap(NULL, 1238972, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e63000
3573  old_mmap(0xb7f88000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x125000) = 0xb7f88000
3573  old_mmap(0xb7f8f000, 10172, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f8f000
3573  close(3)                          = 0
3573  old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7e62000
3573  set_thread_area({entry_number:-1 -> 6, base_addr:0xb7e628e0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
3573  munmap(0xb7f92000, 67511)         = 0
3573  brk(0)                            = 0x804b000
3573  brk(0x806c000)                    = 0x806c000
3573  create_module(NULL, 0)            = -1 ENOSYS (Function not implemented)
3573  open("/lib/modules/2.6.15-29-686/kernel/crypto/tcrypt.ko", O_RDONLY) = 3
3573  read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\1\0\3\0\1\0\0\0\0\0\0\0"..., 16384) = 16384
3573  read(3, "\ntesting crc32c using incrementa"..., 16384) = 16384
3573  read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
3573  read(3, "\0\0\0\0\0\0\30\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 65536) = 32779
3573  read(3, "", 32757)                = 0
3573  close(3)                          = 0
3573  init_module(".ELF...", 0x1800b)   = 0
3573  exit_group(0)                     = ?
3572  <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 3573
3572  --- SIGCHLD (Child exited) @ 0 (0) ---
3572  _exit(0) 

--
vda