Hello, I am trying to add kernel modules in my yocto build like overlay_fs. This was working fine at some point. I have no idea what I happened, but I am not able to get the kernel modules to load anymore. lsmod comes up empty and all modules in dmesg error with “unknown symbol (error -22)” and “disagrees about version of symbol”.
I normally delete the build folder, but I also tried bitbake -c cleanall <image> without success.
Below are a few different outputs for commands I have tried for debugging:
root@apalis-imx8-14715993:~# lsmod
Module Size Used by
v4l2_jpeg 16384 0
root@apalis-imx8-14715993:~# zcat /proc/config.gz | grep OVERLAY_FS
# CONFIG_OVERLAY_FS is not set
root@apalis-imx8-14715993:~# modprobe -v overlay
insmod /lib/modules/5.15.129-6.4.0-devel+git.67c3153d20ff/kernel/fs/overlayfs/overlay.ko
modprobe: ERROR: could not insert 'overlay': Invalid argument
root@apalis-imx8-14715993:~# modinfo overlay
filename: /lib/modules/5.15.129-6.4.0-devel+git.67c3153d20ff/kernel/fs/overlayfs/overlay.ko
alias: fs-overlay
license: GPL
description: Overlay filesystem
author: Miklos Szeredi <miklos@szeredi.hu>
depends:
intree: Y
name: overlay
vermagic: 5.15.129-6.4.0-devel+git.67c3153d20ff SMP preempt mod_unload modversions aarch64
parm: check_copy_up:Obsolete; does nothing
parm: redirect_max:Maximum length of absolute redirect xattr value (ushort)
parm: redirect_dir:Default to on or off for the redirect_dir feature (bool)
parm: redirect_always_follow:Follow redirects even if redirect_dir feature is turned off (bool)
parm: index:Default to on or off for the inodes index feature (bool)
parm: nfs_export:Default to on or off for the NFS export feature (bool)
parm: xino_auto:Auto enable xino feature (bool)
parm: metacopy:Default to on or off for the metadata only copy up feature (bool)
root@apalis-imx8-14715993:~# dmesg | grep overlay
[ 194.096477] overlay: disagrees about version of symbol vfs_rename
[ 194.102685] overlay: Unknown symbol vfs_rename (err -22)
[ 194.108311] overlay: disagrees about version of symbol lookup_one_len
[ 194.114798] overlay: Unknown symbol lookup_one_len (err -22)
[ 194.120649] overlay: disagrees about version of symbol generic_permission
[ 194.127459] overlay: Unknown symbol generic_permission (err -22)
[ 194.133556] overlay: disagrees about version of symbol vfs_unlink
[ 194.139670] overlay: Unknown symbol vfs_unlink (err -22)
[ 194.145053] overlay: disagrees about version of symbol path_put
[ 194.151041] overlay: Unknown symbol path_put (err -22)
[ 194.156285] overlay: disagrees about version of symbol vfs_mkdir
[ 194.162318] overlay: Unknown symbol vfs_mkdir (err -22)
[ 194.167766] overlay: disagrees about version of symbol vfs_get_link
[ 194.174058] overlay: Unknown symbol vfs_get_link (err -22)
[ 194.179622] overlay: disagrees about version of symbol lock_rename
[ 194.185822] overlay: Unknown symbol lock_rename (err -22)
[ 194.191316] overlay: disagrees about version of symbol kern_path
[ 194.197356] overlay: Unknown symbol kern_path (err -22)
[ 194.202636] overlay: disagrees about version of symbol unlock_rename
[ 194.209020] overlay: Unknown symbol unlock_rename (err -22)
[ 194.214628] overlay: disagrees about version of symbol vfs_rmdir
[ 194.220671] overlay: Unknown symbol vfs_rmdir (err -22)
[ 194.225980] overlay: disagrees about version of symbol vfs_symlink
[ 194.232191] overlay: Unknown symbol vfs_symlink (err -22)
[ 194.237669] overlay: disagrees about version of symbol vfs_mknod
[ 194.243702] overlay: Unknown symbol vfs_mknod (err -22)
[ 194.248971] overlay: disagrees about version of symbol lookup_positive_unlocked
[ 194.256309] overlay: Unknown symbol lookup_positive_unlocked (err -22)
[ 194.262927] overlay: disagrees about version of symbol lookup_one_len_unlocked
[ 194.270184] overlay: Unknown symbol lookup_one_len_unlocked (err -22)
[ 194.276685] overlay: disagrees about version of symbol rcuwait_wake_up
[ 194.283244] overlay: Unknown symbol rcuwait_wake_up (err -22)
[ 194.289036] overlay: disagrees about version of symbol vfs_tmpfile
[ 194.295248] overlay: Unknown symbol vfs_tmpfile (err -22)
[ 194.300685] overlay: disagrees about version of symbol vfs_link
[ 194.306637] overlay: Unknown symbol vfs_link (err -22)
[ 194.311832] overlay: disagrees about version of symbol inode_permission
[ 194.318483] overlay: Unknown symbol inode_permission (err -22)
[ 194.324389] overlay: disagrees about version of symbol vfs_create
[ 194.330510] overlay: Unknown symbol vfs_create (err -22)
[ 993.102143] overlay: disagrees about version of symbol vfs_rename
[ 993.108607] overlay: Unknown symbol vfs_rename (err -22)
[ 993.114017] overlay: disagrees about version of symbol lookup_one_len
[ 993.120543] overlay: Unknown symbol lookup_one_len (err -22)
[ 993.126376] overlay: disagrees about version of symbol generic_permission
[ 993.133222] overlay: Unknown symbol generic_permission (err -22)
[ 993.139335] overlay: disagrees about version of symbol vfs_unlink
[ 993.145464] overlay: Unknown symbol vfs_unlink (err -22)
[ 993.150834] overlay: disagrees about version of symbol path_put
[ 993.156778] overlay: Unknown symbol path_put (err -22)
[ 993.161972] overlay: disagrees about version of symbol vfs_mkdir
[ 993.168014] overlay: Unknown symbol vfs_mkdir (err -22)
[ 993.173459] overlay: disagrees about version of symbol vfs_get_link
[ 993.179764] overlay: Unknown symbol vfs_get_link (err -22)
[ 993.185333] overlay: disagrees about version of symbol lock_rename
[ 993.191535] overlay: Unknown symbol lock_rename (err -22)
[ 993.197032] overlay: disagrees about version of symbol kern_path
[ 993.203054] overlay: Unknown symbol kern_path (err -22)
[ 993.208336] overlay: disagrees about version of symbol unlock_rename
[ 993.214714] overlay: Unknown symbol unlock_rename (err -22)
[ 993.220315] overlay: disagrees about version of symbol vfs_rmdir
[ 993.226345] overlay: Unknown symbol vfs_rmdir (err -22)
[ 993.231631] overlay: disagrees about version of symbol vfs_symlink
[ 993.237829] overlay: Unknown symbol vfs_symlink (err -22)
[ 993.243288] overlay: disagrees about version of symbol vfs_mknod
[ 993.249316] overlay: Unknown symbol vfs_mknod (err -22)
[ 993.254562] overlay: disagrees about version of symbol lookup_positive_unlocked
[ 993.261895] overlay: Unknown symbol lookup_positive_unlocked (err -22)
[ 993.268510] overlay: disagrees about version of symbol lookup_one_len_unlocked
[ 993.275754] overlay: Unknown symbol lookup_one_len_unlocked (err -22)
[ 993.282229] overlay: disagrees about version of symbol rcuwait_wake_up
[ 993.288779] overlay: Unknown symbol rcuwait_wake_up (err -22)
[ 993.294554] overlay: disagrees about version of symbol vfs_tmpfile
[ 993.300755] overlay: Unknown symbol vfs_tmpfile (err -22)
[ 993.306174] overlay: disagrees about version of symbol vfs_link
[ 993.312116] overlay: Unknown symbol vfs_link (err -22)
[ 993.317289] overlay: disagrees about version of symbol inode_permission
[ 993.323922] overlay: Unknown symbol inode_permission (err -22)
[ 993.329811] overlay: disagrees about version of symbol vfs_create
[ 993.335940] overlay: Unknown symbol vfs_create (err -22)
root@apalis-imx8-14715993:~#
Thanks in advance!