kernel 3.19.0-37.42, multipath does not work

[Andy Igoshin]

ubuntu 14.04.3
linux-image-3.19.0-37-generic 3.19.0-37.42~14.04.1
multipath-tools 0.4.9-3ubuntu7.6

multipath does not work generating such messages:

Dec 1 20:40:07 ts kernel: [ 31.268416] device-mapper: table: 252:0: multipath: unknown path selector type
Dec 1 20:40:07 ts kernel: [ 31.268417] device-mapper: ioctl: error adding target to table

Dec 1 20:40:16 ts kernel: [ 48.839135] device-mapper: table: 252:0: multipath: error getting device
Dec 1 20:40:16 ts kernel: [ 48.839136] device-mapper: ioctl: error adding target to table

no problems with linux-image-3.19.0-33-generic (3.19.0-33.38~14.04.1).

syslog & multipath.conf attached.

[Andy Igoshin (andy-igoshin)]

the same problem with kernels

3.19.0-39.44~14.04.1
4.2.0-19.23~14.04.1

[Andy Igoshin (andy-igoshin)]

i got this packages from wily and rebuilt it for trusty

multipath-tools_0.5.0-7ubuntu7.1
sg3-utils_1.40-0ubuntu1

it resolved the problem.

so the problem is in the old multipath-tools package in trusty.

[Mathieu Trudel-Lapierre (cyphermox)]

Did you modify the path selector yourself?

path_selector "service-time 0"

This requires loading the dm-service-time module.

[Andy Igoshin (andy-igoshin)]

yes i modified it, my current value is 'path_selector "service-time 0"'.

now it is working successfully with

multipath-tools 0.5.0-7ubuntu7.1
linux-image-4.2.0-25-generic 4.2.0-25.30~14.04.1

[Gabriel A. Devenyi (gadevenyi)]

Just running into this now on a fresh install.

Andy can you share how you installed the updated version?

[Andy Igoshin (andy-igoshin)]

i downloaded multipath-tools source package from http://packages.ubuntu.com/wily-updates/multipath-tools

and rebuilt it on trusty as described here http://www.cyberciti.biz/faq/rebuilding-ubuntu-debian-linux-binary-package/

[Gabriel A. Devenyi (gadevenyi)]

Thanks for the info, I ended up following https://opensourcehacker.com/2013/03/20/how-to-backport-packages-on-ubuntu-linux/

And I created a ppa with the backported lvm/multipath/sg3-utils toolchain at https://launchpad.net/~ace-staticwave/+archive/ubuntu/personal

[jinendra (jinendra)]

ran in to this bug for trusty, for now using Gabriel Devenyi's PPA and it's working fine.

[seems like multipath v0.5.0 do not like wwid: "*" in blacklist section but that's for some other day :) ]

[Launchpad Janitor (janitor)]

[Expired for multipath-tools (Ubuntu) because there has been no activity for 60 days.]