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[dm-devel] RE: Multipath tool for 2.6.9 RHEL 4 U1



Thanks Christophe. 


Are these upgrades in a single place on any site?
I tried upgrading the libdevmapper, but had inconsistencies with existing
libdevmapper 1.0 (device-mapper-1.00.19-2).
I tried deleting the older one, but then I get dependencies on the following
rpms.
- dmraid-1.0.0.rc5f-rhel4.1.i386
- lvm2-2.00.31-1.0.RHEL4.i386
- dmraid-1.0.0.rc5f-rhel4.1.i386
- lvm2-2.00.31-1.0.RHEL4.i386

If I choose 2nd option, the compilation goes through the initial level, but
finally gets stuck at the following place:

/******************************************/
make[1]: Entering directory
`/usr/src/iscsi/tools/multipath-tools-0.4.4/kpartx'
rm -f core *.o *.gz
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o bsd.o bsd.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o dos.o dos.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o kpartx.o kpartx.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o solaris.o
solaris.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o unixware.o
unixware.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o gpt.o gpt.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o crc32.o crc32.c
cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I.   -c -o lopart.o lopart.c
In file included from lopart.c:29:
/usr/include/linux/loop.h:31:2: #error "Wrong dev_t in loop.h"
make[1]: *** [lopart.o] Error 1
make[1]: Leaving directory
`/usr/src/iscsi/tools/multipath-tools-0.4.4/kpartx'
make: *** [recurse] Error 2
/******************************************/

Are the required packages with appropriate version numbers documented
anywhere, so that I can download them appropriately? If anyone in your team
has faced similar issue, they should be able to suggest a resolution faster
- I guess.

Thanks in advance,
Nitin

-----Original Message-----
From: christophe varoqui [mailto:christophe varoqui free fr] 
Sent: Thursday, June 16, 2005 5:20 PM
To: Nitin Chandna
Subject: RE: Multipath tool for 2.6.9 RHEL 4 U1

You have 2 options : either upgrade your libdevmapper, or #define
dm_task_no_open_count(a) to a noop like 'while(0){}'

Regards,
cvaroqui

On jeu, 2005-06-16 at 16:18 +0530, Nitin Chandna wrote:
> Hi,
> 
> I am working with testing of iSCSI Initiators and iSCSI targets in 
> India and was wondering how would multipathing work with iSCSI disks.
> 
> I have the Red Hat's recent RHEL 4 U1 kernel available:
> # uname -a
> Linux cnitin-linux-6 2.6.9-11.ELsmp #1 SMP Fri May 20 18:26:27 EDT 
> 2005 i686
> i686 i386 GNU/Linux
> 
> I understand that device-mapper is the kernel component and 
> multipath-tools is the user space component. My understanding is that 
> RHEL 4 U1 already has the device mapper integrated.
> 
> I downloaded multipath-tools-0.4.4.tar.bz2  from the URL:
> http://christophe.varoqui.free.fr, but during compilation, I am 
> getting the following error:
> /****************************************************/
> [root cnitin-linux-6 multipath-tools-0.4.4]# make
> make[1]: Entering directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/libmultipath'
> rm -f core *.o *.gz
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o memory.o memory.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o parser.o parser.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o vector.o vector.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o devmapper.o
> devmapper.c
> devmapper.c: In function `dm_prereq':
> devmapper.c:24: warning: implicit declaration of function 
> `dm_task_no_open_count'
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o callout.o callout.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o hwtable.o hwtable.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o blacklist.o
> blacklist.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o util.o util.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o dmparser.o
dmparser.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o config.o config.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o structs.o structs.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o cache.o cache.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o discovery.o
> discovery.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o propsel.o propsel.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o dict.o dict.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o pgpolicies.o
> pgpolicies.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o debug.o debug.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o regex.o regex.c
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o defaults.o
defaults.c
> ar rs libmultipath-glibc.a *.o
> make[1]: Leaving directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/libmultipath'
> make[1]: Entering directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/libcheckers'
> rm -f core *.o *.gz
> cc    -c -o readsector0.o readsector0.c
> cc    -c -o tur.o tur.c
> cc    -c -o selector.o selector.c
> cc    -c -o emc_clariion.o emc_clariion.c
> ar rs libcheckers-glibc.a *.o
> make[1]: Leaving directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/libcheckers'
> make[1]: Entering directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/path_priority'
> rm -f core *.o *.gz
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes -I../libmultipath 
> -DDEBUG=0 -c -o pp_balance_units.o pp_balance_units.c cc -o 
> pp_balance_units pp_balance_units.o 
> ../libmultipath/libmultipath-glibc.a -ldevmapper strip --strip-all -R 
> .comment -R .note pp_balance_units
> make[2]: Entering directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/path_priority/pp_emc'
> cc -o pp_emc pp_emc.o
> strip --strip-all -R .comment -R .note pp_emc
> make[2]: Leaving directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/path_priority/pp_emc'
> make[2]: Entering directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/path_priority/pp_alua'
> cc -o pp_alua main.o rtpg.o
> strip --strip-all -R .comment -R .note pp_alua
> make[2]: Leaving directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/path_priority/pp_alua'
> make[1]: Leaving directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/path_priority'
> make[1]: Entering directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/devmap_name'
> rm -f core *.o *.gz
> cc -pipe -g -Wall -Wunused -Wstrict-prototypes   -c -o devmap_name.o
> devmap_name.c
> devmap_name.c: In function `dm_target_type':
> devmap_name.c:31: warning: implicit declaration of function 
> `dm_task_no_open_count'
> cc -o devmap_name devmap_name.o -ldevmapper
> devmap_name.o(.text+0xb6): In function `dm_target_type':
> /usr/src/iscsi/tools/multipath-tools-0.4.4/devmap_name/devmap_name.c:31:
> undefined reference to `dm_task_no_open_count'
> collect2: ld returned 1 exit status
> make[1]: *** [glibc] Error 1
> make[1]: Leaving directory
> `/usr/src/iscsi/tools/multipath-tools-0.4.4/devmap_name'
> make: *** [recurse] Error 2
> [root cnitin-linux-6 multipath-tools-0.4.4]# 
> /****************************************************/
> 
> How can I overcome this compilation issue? Please let me know if you 
> will need any more information from me to resolve this issue?
> 
> Regards,
> Nitin
> 
> -----Original Message-----
> From: christophe varoqui [mailto:christophe varoqui free fr]
> Sent: Friday, May 13, 2005 3:17 AM
> To: Nitin Chandna
> Subject: RE: Multipath tool for 2.6.9 RHEL 4 U1
> 
> RedHat patches its kernels, so their 2.6.9 might have the adequate DM 
> fonctionnality for 0.4.4 to compile and run.
> 
> Again, post the build log if you want this thread to go somewhere :)
> 
> Regards,
> cvaroqui
> 
> On jeu, 2005-05-12 at 18:15 +0530, Nitin Chandna wrote:
> > 0.4.4 was meant for 2.6.10 onwards, whereas I was aiming at 2.6.9 
> > RHEL
> > 4 U1 kernel, that's where the compilation seems to be failing for 
> > 0.4.4. Any clue which version would suite the mentioned kernel?
> > 
> > Regards,
> > Nitin
> > 
> > -----Original Message-----
> > From: Christophe Varoqui [mailto:christophe varoqui free fr]
> > Sent: Thursday, May 12, 2005 6:13 PM
> > To: Nitin Chandna
> > Subject: Re: Multipath tool for 2.6.9 RHEL 4 U1
> > 
> > Try the lastest stable release : 0.4.4
> > 
> > Multipath-tools are the userspace part of the Linux multipath 
> > implementation. The kernel part is a Device Mapper target module.
> > 
> > Regards,
> > cvaroqui
> > 
> > On Thu, May 12, 2005 at 05:38:19PM +0530, Nitin Chandna wrote:
> > > Hi Christophe,
> > > 
> > > Will be able to suggest the appropriate version of multipath tools 
> > > for
> me?
> > > I was also wondering if Device Mapper has the same functionality 
> > > as multipath tools - though I am sure that is used for making RAID
systems.
> > > 
> > > Regards,
> > > Nitin
> > > 
> > > -----Original Message-----
> > > From: Nitin Chandna [mailto:cnitin cisco com]
> > > Sent: Thursday, May 05, 2005 10:58 AM
> > > To: 'christophe varoqui'
> > > Subject: RE: Multipath tool for 2.6.9 RHEL 4 U1
> > > 
> > > Hi Christopher,
> > > 
> > > I am planning to test Linux LVM with alternate-path SW from RH 
> > > Release
> > > 4 update 1 with Cisco iSCSI Targets. I was not sure whether the 
> > > multipath tools are packaged as RPM in this kernel itself. If 
> > > packaged, then under what name I can search them.
> > > I would be grateful, if you can let me know or put me to the 
> > > concerned person to determine the correct version recommended for 
> > > Multipath tools by Red Hat.
> > > 
> > > We are currently not trying to do any development on this.
> > > 
> > > Thanks and Regards,
> > > Nitin
> > > 
> > > -----Original Message-----
> > > From: christophe varoqui [mailto:christophe varoqui free fr]
> > > Sent: Thursday, May 05, 2005 4:01 AM
> > > To: smithan cisco com
> > > Cc: dm-devel redhat com; 'Nitin Chandna'
> > > Subject: Re: Multipath tool for 2.6.9 RHEL 4 U1
> > > 
> > > On mer, 2005-05-04 at 18:17 +0530, Smitha Narayanaswamy (smithan)
wrote:
> > > > Hi,
> > > > Which is the version of the multipath tool to be used for 2.6.9 
> > > > RHEL
> > > > 4
> > > > U1 kernel?
> > > > 
> > > Depends on your objectives.
> > > 
> > > If you intend to do useful things with this server, you should 
> > > stick with to tools version provided by RedHat.
> > > 
> > > On the other hand, if you want to help with the development, you 
> > > should stick with upstream kernel+udm patches and upstream tools 
> > > from kernel.org git repository.
> > > 
> > > Regards,
> > > --
> > > christophe varoqui <christophe varoqui free fr>
> --
> christophe varoqui <christophe varoqui free fr>
--
christophe varoqui <christophe varoqui free fr>


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