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Unknown symbol in module [CentOS Linux release 7.6.1810 (Core)] #55

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ilqvya opened this issue Jan 2, 2019 · 11 comments
Closed

Unknown symbol in module [CentOS Linux release 7.6.1810 (Core)] #55

ilqvya opened this issue Jan 2, 2019 · 11 comments

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@ilqvya
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ilqvya commented Jan 2, 2019 •
edited 

[centos@WebLinux src]$ sudo insmod lime-3.10.0-957.1.3.el7.x86_64.ko "path=./DUMP format=raw"
[sudo] password for centos:
insmod: ERROR: could not insert module lime-3.10.0-957.1.3.el7.x86_64.ko: Unknown symbol in module


[centos@WebLinux src]$ uname -a
Linux WebLinux 3.10.0-957.1.3.el7.x86_64 #1 SMP Thu Nov 29 14:49:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


[centos@WebLinux src]$ ls /lib/modules
3.10.0-693.11.6.el7.x86_64  3.10.0-693.el7.x86_64  3.10.0-957.1.3.el7.x86_64  lime-3.10.0-957.1.3.el7.x86_64.ko


[centos@WebLinux src]$ ls -l /usr/src/kernels/$(uname -r)
total 4708
drwxr-xr-x.  32 root root    4096 Dec 29 16:31 arch
drwxr-xr-x.   3 root root    4096 Dec 29 16:31 block
drwxr-xr-x.   4 root root    4096 Dec 29 16:31 crypto
drwxr-xr-x. 119 root root    4096 Dec 29 16:31 drivers
drwxr-xr-x.   2 root root    4096 Dec 29 16:31 firmware
drwxr-xr-x.  75 root root    4096 Dec 29 16:31 fs
drwxr-xr-x.  28 root root    4096 Dec 29 16:31 include
drwxr-xr-x.   2 root root    4096 Dec 29 16:31 init
drwxr-xr-x.   2 root root    4096 Dec 29 16:31 ipc
-rw-r--r--.   1 root root     505 Nov 29 16:53 Kconfig
drwxr-xr-x.  13 root root    4096 Dec 29 16:31 kernel
drwxr-xr-x.  10 root root    4096 Dec 29 16:31 lib
-rw-r--r--.   1 root root   51296 Nov 29 16:53 Makefile
-rw-r--r--.   1 root root    2305 Nov 29 16:53 Makefile.qlock
drwxr-xr-x.   2 root root    4096 Dec 29 16:31 mm
-rw-r--r--.   1 root root 1123561 Nov 29 16:53 Module.symvers
drwxr-xr-x.  61 root root    4096 Dec 29 16:31 net
drwxr-xr-x.  15 root root    4096 Dec 29 16:31 samples
drwxr-xr-x.  13 root root    4096 Dec 29 16:31 scripts
drwxr-xr-x.   9 root root    4096 Dec 29 16:31 security
drwxr-xr-x.  24 root root    4096 Dec 29 16:31 sound
-rw-r--r--.   1 root root 3544010 Nov 29 16:53 System.map
drwxr-xr-x.  20 root root    4096 Dec 29 16:31 tools
drwxr-xr-x.   2 root root    4096 Dec 29 16:31 usr
drwxr-xr-x.   4 root root    4096 Dec 29 16:31 virt
-rw-r--r--.   1 root root      41 Nov 29 16:53 vmlinux.id


[centos@WebLinux src]$ ls -l /usr/src/kernels/
total 4
drwxr-xr-x. 22 root root 4096 Dec 29 16:31 3.10.0-957.1.3.el7.x86_64
@ilqvya
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ilqvya commented Jan 2, 2019

it is the latest LiME, built directly on the machine

@kd8bny
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kd8bny commented Jan 2, 2019

Has the kernel been updated recently? Has the machine been updated since the update?

@ilqvya
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ilqvya commented Jan 2, 2019

I don't know. It is VM. as i know, kernel was updated to the latest (that was published recently), recently.

@kd8bny
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kd8bny commented Jan 2, 2019

Restart the VM. That error happens when you compile a module that doesn't match the running kernel version. e.g. after a system update

@ilqvya
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ilqvya commented Jan 2, 2019 •
edited

Well, i've restarted my VM, and it doesn't help =(

[centos@WebLinux dev]$ cd LiME                                                                                 
[centos@WebLinux LiME]$ cd src/                                                                                
[centos@WebLinux src]$ make clean                                                                              
rm -f *.o *.mod.c Module.symvers Module.markers modules.order \.*.o.cmd \.*.ko.cmd \.*.o.d                     
rm -rf \.tmp_versions                                                                                          
[centos@WebLinux src]$ ls                                                                                      
disk.c  lime-3.10.0-957.1.3.el7.x86_64.ko  lime.h  main.c  Makefile  Makefile.sample  tcp.c                    
[centos@WebLinux src]$ rm lime-3.10.0-957.1.3.el7.x86_64.ko                                                    
[centos@WebLinux src]$ ls                                                                                      
disk.c  lime.h  main.c  Makefile  Makefile.sample  tcp.c                                                       
[centos@WebLinux src]$ make                                                                                    
make -C /lib/modules/3.10.0-957.1.3.el7.x86_64/build M=/home/centos/dev/LiME/src modules                       
make[1]: Entering directory `/usr/src/kernels/3.10.0-957.1.3.el7.x86_64'                                       
  CC [M]  /home/centos/dev/LiME/src/tcp.o                                                                      
  CC [M]  /home/centos/dev/LiME/src/disk.o                                                                     
  CC [M]  /home/centos/dev/LiME/src/main.o                                                                     
  LD [M]  /home/centos/dev/LiME/src/lime.o                                                                     
  Building modules, stage 2.                                                                                   
  MODPOST 1 modules                                                                                            
  CC      /home/centos/dev/LiME/src/lime.mod.o                                                                 
  LD [M]  /home/centos/dev/LiME/src/lime.ko                                                                    
make[1]: Leaving directory `/usr/src/kernels/3.10.0-957.1.3.el7.x86_64'                                        
strip --strip-unneeded lime.ko                                                                                 
mv lime.ko lime-3.10.0-957.1.3.el7.x86_64.ko                                                                   
[centos@WebLinux src]$ ls                                                                                      
disk.c  lime-3.10.0-957.1.3.el7.x86_64.ko  lime.mod.c  lime.o  main.o    Makefile.sample  Module.symvers  tcp.o
disk.o  lime.h                             lime.mod.o  main.c  Makefile  modules.order    tcp.c                

[centos@WebLinux src]$ sudo insmod lime-3.10.0-957.1.3.el7.x86_64.ko  "patch ./Dump format=raw"   
insmod: ERROR: could not insert module lime-3.10.0-957.1.3.el7.x86_64.ko: Unknown symbol in module
[centos@WebLinux src]$ last reboot                                                                
reboot   system boot  3.10.0-957.1.3.e Wed Jan  2 23:17 - 23:26  (00:09)                          
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 10:08 - 23:26 (2+13:18)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 10:01 - 23:26 (2+13:25)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:59 - 23:26 (2+13:26)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:58 - 23:26 (2+13:28)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:55 - 23:26 (2+13:31)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:53 - 23:26 (2+13:33)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:38 - 23:26 (2+13:48)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:26 - 23:26 (2+14:00)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:13 - 23:26 (2+14:13)                         
reboot   system boot  3.10.0-957.1.3.e Mon Dec 31 09:03 - 23:26 (2+14:23)                         
reboot   system boot  3.10.0-957.1.3.e Sun Dec 30 22:58 - 23:26 (3+00:28)                         
reboot   system boot  3.10.0-957.1.3.e Sat Dec 29 16:22 - 23:26 (4+07:04)                         
reboot   system boot  3.10.0-957.1.3.e Sat Dec 22 19:25 - 19:26  (00:01)                          
reboot   system boot  3.10.0-693.11.6. Sat Dec 22 19:18 - 19:26  (00:08)                          
reboot   system boot  3.10.0-693.11.6. Sat Dec 22 18:44 - 19:26  (00:42)                          
reboot   system boot  3.10.0-693.11.6. Fri Dec 21 11:52 - 19:26 (1+07:34)                         
reboot   system boot  3.10.0-693.11.6. Fri Dec 21 11:47 - 19:26 (1+07:39)                         
reboot   system boot  3.10.0-693.11.6. Thu Mar 22 10:21 - 11:29 (274+01:07)                       
reboot   system boot  3.10.0-693.11.6. Thu Mar 22 10:19 - 11:29 (274+01:09)                       
reboot   system boot  3.10.0-693.11.6. Thu Jan 18 08:53 - 11:29 (337+02:36)                       
reboot   system boot  3.10.0-693.el7.x Wed Jan 17 22:21 - 11:29 (337+13:08)                       
reboot   system boot  3.10.0-693.el7.x Wed Jan 17 21:39 - 22:20  (00:41)                          
                                                                                                  
wtmp begins Wed Jan 17 21:39:01 2018                                                              
[centos@WebLinux src]$

@kd8bny
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kd8bny commented Jan 3, 2019

after running insmod, run dmesg. What does the error state there?

@kd8bny
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kd8bny commented Jan 9, 2019 •
edited

So on this one the last line of dmesg says there is an invalid parameter.

[ 2617.795741] lime: Unknown parameter `patch'

Your insmod has the following.

sudo insmod lime-3.10.0-957.1.3.el7.x86_64.ko "patch ./Dump format=raw"

It should say

sudo insmod lime-3.10.0-957.1.3.el7.x86_64.ko "path=./Dump format=raw"

I don't believe this was you're original issue though

Also I only need the last 20 lines or so :)

@ilqvya
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ilqvya commented Jan 15, 2019

I don't known how, but the issue has gone away. Can't reproduce it even from previous snapshot

@ilqvya
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ilqvya commented Jan 15, 2019 •
edited

I've ctrl-v from top up command line, and it doesn't reproduce at all+(

[centos@WebLinux src]$ sudo insmod lime-3.10.0-957.1.3.el7.x86_64.ko "path=./DUMP format=raw"
[sudo] password for centos:
insmod: ERROR: could not insert module lime-3.10.0-957.1.3.el7.x86_64.ko: Unknown symbol in module

now, it processes without errors.

@kd8bny
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kd8bny commented Jan 15, 2019

@effolkronium So LiME is working and you can create an image of the RAM?

@ilqvya
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ilqvya commented Jan 17, 2019

Yep, i've no idea, what that was, maybe typo in arg string, but now all works like a charm

@ilqvya ilqvya closed this as completed Jan 17, 2019
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