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rapelotus
n00b
Joined: 12 Sep 2014
Posts: 21
Location: 中国江苏
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 Posted: Mon Oct 13, 2014 12:30 am Post subject: [Solved] Depmod warning after recompiling kernel |
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Hi, guys! I encounter a problem about depmod warning after recompiling kernel. Its output like these:
| Code: | depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxsf.ko needs unknown symbol kmem_cache_alloc_trace
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxsf.ko needs unknown symbol kmalloc_order_trace
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxsf.ko needs unknown symbol alloc_pages_current
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxnetflt.ko needs unknown symbol preempt_count_add
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxnetflt.ko needs unknown symbol debug_smp_processor_id
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxnetadp.ko needs unknown symbol warn_slowpath_null
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxguest.ko needs unknown symbol preempt_count_add
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxguest.ko needs unknown symbol debug_smp_processor_id
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxguest.ko needs unknown symbol preempt_count_sub
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxguest.ko needs unknown symbol alloc_pages_current
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxpci.ko needs unknown symbol kmem_cache_alloc_trace
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxdrv.ko needs unknown symbol preempt_count_add
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxdrv.ko needs unknown symbol debug_smp_processor_id
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxdrv.ko needs unknown symbol preempt_count_sub
depmod: WARNING: //lib/modules/3.14.14-gentoo-gnu/misc/vboxdrv.ko needs unknown symbol alloc_pages_current |
When I try to modprobe any of it:
| Code: | | for i in vboxsf vboxnetflt vboxnetadp vboxguest vboxpci vboxdrv; do modprobe $i; done |
The output is like these:
| Code: | modprobe: ERROR: could not insert 'vboxsf': Unknown symbol in module, or unknown parameter (see dmesg)
modprobe: ERROR: could not insert 'vboxnetflt': Unknown symbol in module, or unknown parameter (see dmesg)
modprobe: ERROR: could not insert 'vboxnetadp': Unknown symbol in module, or unknown parameter (see dmesg)
modprobe: ERROR: could not insert 'vboxguest': Unknown symbol in module, or unknown parameter (see dmesg)
modprobe: ERROR: could not insert 'vboxpci': Unknown symbol in module, or unknown parameter (see dmesg)
modprobe: ERROR: could not insert 'vboxdrv': Unknown symbol in module, or unknown parameter (see dmesg) |
The output of dmesg is like these:
| Code: | [ 925.295238] vboxguest: Unknown symbol preempt_count_add (err 0)
[ 925.295301] vboxguest: Unknown symbol debug_smp_processor_id (err 0)
[ 925.295309] vboxguest: Unknown symbol preempt_count_sub (err 0)
[ 925.295339] vboxguest: Unknown symbol alloc_pages_current (err 0)
[ 925.297385] vboxdrv: Unknown symbol preempt_count_add (err 0)
[ 925.297450] vboxdrv: Unknown symbol debug_smp_processor_id (err 0)
[ 925.297458] vboxdrv: Unknown symbol preempt_count_sub (err 0)
[ 925.297492] vboxdrv: Unknown symbol alloc_pages_current (err 0)
[ 925.299753] vboxdrv: Unknown symbol preempt_count_add (err 0)
[ 925.299816] vboxdrv: Unknown symbol debug_smp_processor_id (err 0)
[ 925.299824] vboxdrv: Unknown symbol preempt_count_sub (err 0)
[ 925.299857] vboxdrv: Unknown symbol alloc_pages_current (err 0)
[ 925.301323] vboxguest: Unknown symbol preempt_count_add (err 0)
[ 925.301380] vboxguest: Unknown symbol debug_smp_processor_id (err 0)
[ 925.301388] vboxguest: Unknown symbol preempt_count_sub (err 0)
[ 925.301416] vboxguest: Unknown symbol alloc_pages_current (err 0)
[ 925.303355] vboxdrv: Unknown symbol preempt_count_add (err 0)
[ 925.303416] vboxdrv: Unknown symbol debug_smp_processor_id (err 0)
[ 925.303423] vboxdrv: Unknown symbol preempt_count_sub (err 0)
[ 925.303457] vboxdrv: Unknown symbol alloc_pages_current (err 0)
[ 925.305824] vboxdrv: Unknown symbol preempt_count_add (err 0)
[ 925.305887] vboxdrv: Unknown symbol debug_smp_processor_id (err 0)
[ 925.305894] vboxdrv: Unknown symbol preempt_count_sub (err 0)
[ 925.305928] vboxdrv: Unknown symbol alloc_pages_current (err 0) |
I guess it should be that I missed some kernel options when I configured my kernel. So it should be ok if I enable them, but the question is that I don't know which the kernel options they correspond to.
Does anyone know about it or is there any other solution either?
Other information:
- Kernel: Linux localhost 3.14.14-gentoo-gnu #16 SMP PREEMPT Mon Oct 13 06:54:02 CST 2014 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel GNU/Linux( I enabled deblob USE, and I recompiled my kernel with virtualization as module, both xen and kvm)
- Related command:
| Code: | | make && make modules_install && make install && genkernel --install initramfs && grub-mkconfig -o /boot/grub/grub.cfg && emerge @module-rebuild |
My .config file is here
Before I recompiled my kernel, I once emerged virtualbox and virtualbox-guest-additions some time ago. Then soon after, I unemerged all of them. After I recompiled my kernel, I didn't emerge them again.
If anyone needs more information, just tell me!
Thank you for any help!
Last edited by rapelotus on Tue Oct 14, 2014 2:49 pm; edited 1 time in total |
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rapelotus
n00b
Joined: 12 Sep 2014
Posts: 21
Location: 中国江苏
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| Posted: Tue Oct 14, 2014 2:48 pm Post subject: |
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All of them(vboxsf vboxnetflt vboxnetadp vboxguest vboxpci vboxdrv)(In the remaining text, I call them as modules) are the kernel modules that virtualbox and virtualbox-guest-additions installed. Because I had ever installed them and then uninstalled them, the modules were as residues staying in my system. Uninstalling virtualbox and virtualbox-guest-additions didn't removed the modules. Apart from them, the corresponding group vboxguest vboxusers vboxsf, user vboxguest and device files vboxdrv vboxnetctl are also retained. The kernel modules reside in folder /lib/modules/`uname -r`/misc.
I resolved the problem by reemerging and reunemerging virtualbox and virtualbox-guest-additions following commands below: | Code: | emerge app-emulation/virtualbox app-emulation/virtualbox-guest-additions
emerge --depclean app-emulation/virtualbox-extpack-oracle app-emulation/virtualbox app-emulation/virtualbox-guest-additions && emerge -uDN @world && emerge --depclean && revdep-rebuild |
To be safe, I recompiled my kernel after each command listed above.
When I reemerged virtualbox and virtualbox-guest-additions, I found that there was not depmod warning after I recompiled my kernel.
Though the folder /lib/modules/`uname -r`/misc was still there after I unemerged them, the depmod warning didn't appear after I recompiled my kernel. So it is solved.
I also removed the modules, groups, user and device files that virtualbox created, but I am not very sure if it is OK. The command is below: | Code: | ## Before doing this, recheck that you are in the right kernel version. To remove modules##
rm -rf /lib/modules/`uname -r`/misc
##To delete user that belonged to vboxusers and vboxsf. Remember to replace account with your own account name##
for i in vboxusers vboxsf; do gpasswd -d $account $i; done
## To delete user vboxguest##
userdel -r vboxguest
## To delete group vboxusers,vboxsf and vboxguest##
for i in vboxusers vboxsf vboxguest; do groupdel $i; done
## To delete device files vboxdrv and vboxnetctl##
rm vboxdrv vboxnetctl |
Here, I want to express my gratitude to DONAHUE for his/her hint, advice and help! Thank you very much!
Reference about virtualbox provided by DONAHUE is HERE! |
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