MHVTL kernel module not getting compiled on Ubuntu 11.04

[deepak026]

Hi,

I upgraded my system to Ubuntu 11.04 and now i am now able to compile MHVTL kernel module.

I am getting following error.

root@vermad:~/Downloads/mhvtl-0.19/kernel# make
make -C /lib/modules/2.6.38-9-generic/build SUBDIRS=/root/Downloads/mhvtl-0.19/kernel modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.38-9-generic'
  CC [M]  /root/Downloads/mhvtl-0.19/kernel/mhvtl.o
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:315:2: warning: initialization from incompatible pointer type
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:317:2: warning: initialization from incompatible pointer type
In file included from /root/Downloads/mhvtl-0.19/kernel/mhvtl.c:346:0:
/root/Downloads/mhvtl-0.19/kernel/fetch27.c: In function ‘vtl_sg_copy_user’:
/root/Downloads/mhvtl-0.19/kernel/fetch27.c:51:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.19/kernel/fetch27.c:52:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c: In function ‘vtl_add_device’:
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1108:2: error: implicit declaration of function ‘init_MUTEX’
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c: At top level:
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1708:1: warning: data definition has no type or storage class
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1708:1: warning: type defaults to ‘int’ in declaration of ‘DECLARE_MUTEX’
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1708:1: warning: parameter names (without types) in function declaration
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c: In function ‘vtl_remove_lu’:
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1717:8: error: ‘tmp_mutex’ undeclared (first use in this function)
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1717:8: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [/root/Downloads/mhvtl-0.19/kernel/mhvtl.o] Error 1
make[1]: *** [_module_/root/Downloads/mhvtl-0.19/kernel] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-9-generic'
make: *** [default] Error 2


Please help!!

Deepak

[Mark Harvey]

Please use the 0.18 release. The 0.19 is laging behind.

Perhaps I should release an up to date 0.19....

Sent from my iPad

On Jun 1, 2011, at 4:06, "deepak026 [via MHVTL - Linux Virtual Tape Library - Community Forums]"<[hidden email]> wrote:

Hi,

I upgraded my system to Ubuntu 11.04 and now i am now able to compile MHVTL kernel module.

I am getting following error.

root@vermad:~/Downloads/mhvtl-0.19/kernel# make
make -C /lib/modules/2.6.38-9-generic/build SUBDIRS=/root/Downloads/mhvtl-0.19/kernel modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.38-9-generic'
  CC [M]  /root/Downloads/mhvtl-0.19/kernel/mhvtl.o
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:315:2: warning: initialization from incompatible pointer type
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:317:2: warning: initialization from incompatible pointer type
In file included from /root/Downloads/mhvtl-0.19/kernel/mhvtl.c:346:0:
/root/Downloads/mhvtl-0.19/kernel/fetch27.c: In function ‘vtl_sg_copy_user’:
/root/Downloads/mhvtl-0.19/kernel/fetch27.c:51:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.19/kernel/fetch27.c:52:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c: In function ‘vtl_add_device’:
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1108:2: error: implicit declaration of function ‘init_MUTEX’
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c: At top level:
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1708:1: warning: data definition has no type or storage class
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1708:1: warning: type defaults to ‘int’ in declaration of ‘DECLARE_MUTEX’
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1708:1: warning: parameter names (without types) in function declaration
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c: In function ‘vtl_remove_lu’:
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1717:8: error: ‘tmp_mutex’ undeclared (first use in this function)
/root/Downloads/mhvtl-0.19/kernel/mhvtl.c:1717:8: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [/root/Downloads/mhvtl-0.19/kernel/mhvtl.o] Error 1
make[1]: *** [_module_/root/Downloads/mhvtl-0.19/kernel] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-9-generic'
make: *** [default] Error 2


Please help!!

Deepak

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[nia]

Mark Harvey wrote

Please use the 0.18 release. The 0.19 is laging behind.

Perhaps I should release an up to date 0.19....

Why even bother with two different versions ? I think most people think the 0.19 is the one that is most up to date ..

I am really happy with github as I can always get the most up to date mhvtl code immediately as it becomes available.

[Mark Harvey]

Yeah, the two version idea hasn't worked out at all.

I started the 0.19 with the idea of using xml as the config file format.
Then came the 'personality module' idea..
Then I back-ported the 'personality module' to fix a few bugs in the
0.18 and haven't spent any time on 0.19 branch..

Live and learn :)

On Wed, Jun 1, 2011 at 7:46 AM, nia [via MHVTL - Linux Virtual Tape
Library - Community Forums]
<[hidden email]> wrote:

> Mark Harvey wrote:
> Please use the 0.18 release. The 0.19 is laging behind.
>
> Perhaps I should release an up to date 0.19....
>
> Why even bother with two different versions ? I think most people think the
> 0.19 is the one that is most up to date ..
>
> I am really happy with github as I can always get the most up to date mhvtl
> code immediately as it becomes available.
>
> ________________________________
> If you reply to this email, your message will be added to the discussion
> below:
> http://mhvtl-linux-virtual-tape-library-community-forums.966029.n3.nabble.com/MHVTL-kernel-module-not-getting-compiled-on-Ubuntu-11-04-tp3007223p3008377.html
> To start a new topic under MHVTL - Linux Virtual Tape Library - Community
> Forums, email [hidden email]
> To unsubscribe from MHVTL - Linux Virtual Tape Library - Community Forums,
> click here.

[deepak026]

I tried using 0.18 as well and same kine of results. here is the output.

root@vermad:~/Downloads/mhvtl-0.18/kernel# make
make -C /lib/modules/2.6.38-9-generic/build SUBDIRS=/root/Downloads/mhvtl-0.18/kernel modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.38-9-generic'
  CC [M]  /root/Downloads/mhvtl-0.18/kernel/mhvtl.o
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:312:2: warning: initialization from incompatible pointer type
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:313:2: warning: initialization from incompatible pointer type
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:330:2: error: unknown field ‘ioctl’ specified in initializer
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:330:2: warning: initialization from incompatible pointer type
In file included from /root/Downloads/mhvtl-0.18/kernel/mhvtl.c:337:0:
/root/Downloads/mhvtl-0.18/kernel/fetch27.c: In function ‘vtl_sg_copy_user’:
/root/Downloads/mhvtl-0.18/kernel/fetch27.c:51:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.18/kernel/fetch27.c:52:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c: In function ‘vtl_add_device’:
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:1087:2: error: implicit declaration of function ‘init_MUTEX’
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c: At top level:
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:1724:1: warning: data definition has no type or storage class
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:1724:1: warning: type defaults to ‘int’ in declaration of ‘DECLARE_MUTEX’
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:1724:1: warning: parameter names (without types) in function declaration
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c: In function ‘vtl_remove_lu’:
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:1733:8: error: ‘tmp_mutex’ undeclared (first use in this function)
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:1733:8: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [/root/Downloads/mhvtl-0.18/kernel/mhvtl.o] Error 1
make[1]: *** [_module_/root/Downloads/mhvtl-0.18/kernel] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-9-generic'
make: *** [default] Error 2

Deepak

[Mark Harvey]

Results on a 32bit Ubuntu box :

  ======================
markh@zaphodvm:~$ cd src/mhvtl/kernel/

markh@zaphodvm:~/src/mhvtl/kernel$ cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.04
DISTRIB_CODENAME=natty
DISTRIB_DESCRIPTION="Ubuntu 11.04"

markh@zaphodvm:~/src/mhvtl/kernel$ uname -a
Linux zaphodvm 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux

markh@zaphodvm:~/src/mhvtl/kernel$ make
make -C /lib/modules/2.6.38-8-generic/build SUBDIRS=/home/markh/src/mhvtl/kernel modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.38-8-generic'
  CC [M]  /home/markh/src/mhvtl/kernel/mhvtl.o
/home/markh/src/mhvtl/kernel/mhvtl.c:330:2: warning: initialization from incompatible pointer type
In file included from /home/markh/src/mhvtl/kernel/mhvtl.c:359:0:
/home/markh/src/mhvtl/kernel/fetch27.c: In function âvtl_sg_copy_userâ:
/home/markh/src/mhvtl/kernel/fetch27.c:51:5: warning: cast from pointer to integer of different size
/home/markh/src/mhvtl/kernel/fetch27.c:52:5: warning: cast from pointer to integer of different size
  Building modules, stage 2.
  MODPOST 1 modules
  CC      /home/markh/src/mhvtl/kernel/mhvtl.mod.o
  LD [M]  /home/markh/src/mhvtl/kernel/mhvtl.ko
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-8-generic'
  ======================

Please make sure you have 0.18-16 (mhvtl-2011-05-22.tgz) - or use latest from github.com.

Unfortunately, I now notice the kernel module version string was not updated with the last kernel module patch.
So we can't simply do a 'grep vtl_version mhvtl.c' to identify the correct code.

Please post if this works/does not work for you.

Many thanks
Mark

[deepak026]

Ir worked !!! with 0.18.16.


root@vermad:~/Downloads/mhvtl-0.18/kernel# make
make -C /lib/modules/2.6.38-9-generic/build SUBDIRS=/root/Downloads/mhvtl-0.18/kernel modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.38-9-generic'
  CC [M]  /root/Downloads/mhvtl-0.18/kernel/mhvtl.o
/root/Downloads/mhvtl-0.18/kernel/mhvtl.c:330:2: warning: initialization from incompatible pointer type
In file included from /root/Downloads/mhvtl-0.18/kernel/mhvtl.c:359:0:
/root/Downloads/mhvtl-0.18/kernel/fetch27.c: In function ‘vtl_sg_copy_user’:
/root/Downloads/mhvtl-0.18/kernel/fetch27.c:51:5: warning: cast from pointer to integer of different size
/root/Downloads/mhvtl-0.18/kernel/fetch27.c:52:5: warning: cast from pointer to integer of different size
  Building modules, stage 2.
  MODPOST 1 modules
  CC      /root/Downloads/mhvtl-0.18/kernel/mhvtl.mod.o
  LD [M]  /root/Downloads/mhvtl-0.18/kernel/mhvtl.ko
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-9-generic'

Thanks very much..

Deepak