Steve, Can you please assign to Foundations (request from IBM is cyphermox).
Thanks. Michael On 03/16/2017 12:09 AM, Launchpad Bug Tracker wrote: > bugproxy (bugproxy) has assigned this bug to you for Ubuntu: > > == Comment: #0 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:01:18 == > ---Problem Description--- > dm-queue-length module is not included in installer/initramfs > > On Ubuntu, multipath devices using the 'queue-length' path selector > are non-functional on both the installer and initramfs environments; > because the 'dm-queue-length' kernel module is not included in them. > > The multipath-modules.udeb (src:linux) does not include it in the installer, > nor multipath-tools-boot (src:multipath-tools) installs it in the initramfs. > > One example is the EMC XtremIO storage, which has 'queue-length' defined as > its path selector in the default multipath configuration, at least on 16.04. > > Other products may be affected if they are manually configured to use that > path selector (e.g., via /etc/multipath.conf), and the mere switch of that > might render the system _unbootable_ if booting from multipath, since the > initramfs is affected. > > More recently this and another storage changed default path selectors out > of 'queue-length', however, it's virtually possible for any storage system > to be affected, with the described manual configuration change. So, this > change is also desired on for the next stable release, 17.04, and later. > > Patches are provided for 16.04 and 17.04. > > > Error logs: > ---------- > > This error log is seen in the installer, and multipath devices are not > created for such storage system: > > ... > Mar 14 06:41:54 kernel: [ 0.000000] Kernel command line: tasks=standard > pkgsel/language-pack-patterns= pkgsel/install-language-support=false --- > quiet /install disk-detect/multipath/enable=true > ... > Mar 14 06:47:09 main-menu[3743]: INFO: Menu item 'disk-detect' selected > ... > Mar 14 06:47:14 anna-install: Installing multipath-udeb > ... > Mar 14 06:47:16 kernel: [ 324.968027] device-mapper: table: 252:0: > multipath: unknown path selector type > Mar 14 06:47:16 kernel: [ 324.968030] device-mapper: ioctl: error adding > target to table > ... > Mar 14 06:47:17 kernel: [ 326.484059] device-mapper: table: 252:0: > multipath: unknown path selector type > Mar 14 06:47:17 kernel: [ 326.484062] device-mapper: ioctl: error adding > target to table > Mar 14 06:47:17 disk-detect: Mar 14 06:47:16 | mpatha: ignoring map > ... > Mar 14 06:47:17 disk-detect: Mar 14 06:47:17 | mpathg: ignoring map > Mar 14 06:47:18 disk-detect: No multipath devices detected > > > And after installing the system in an individual/single path device, > and trying to switch to multipath via multipath-tools-boot, it also > happens in the initramfs: > > Begin: Mounting root file system ... Begin: Running /scripts/local-top ... > done. > Begin: Running /scripts/local-premount ... Begin: Waiting for udev to settle > (multipath) ... done. > [ 89.709480] device-mapper: table: 252:0: multipath: unknown path selector > type > [ 89.709537] device-mapper: ioctl: error adding target to table > [ 89.756251] device-mapper: table: 252:0: multipath: unknown path selector > type > [ 89.837132] device-mapper: ioctl: error adding target to table > [ 89.912346] device-mapper: table: 252:0: multipath: unknown path selector > type > [ 90.001719] device-mapper: ioctl: error adding target to table > [ 90.300203] device-mapper: table: 252:0: multipath: unknown path selector > type > [ 90.303521] device-mapper: ioctl: error adding target to table > Begin: Running /scripts/local-block ... done. > Begin: Running /scripts/local-block ... done. > Begin: Running /scripts/local-block ... done. > ... > Begin: Running /scripts/local-block ... done. > done. > > Gave up waiting for root device. Common problems: > - Boot args (cat /proc/cmdline) > - Check rootdelay= (did the system wait long enough?) > - Check root= (did the system wait for the right device?) > - Missing modules (cat /proc/modules; ls /dev) > ALERT! UUID=0568fc48-2921-4ba2-b1b5-127c1d5a310e does not exist. Dropping > to a shell! > > > BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash) > Enter 'help' for a list of built-in commands. > > (initramfs) > > Contact Information = mauri...@linux.vnet.ibm.com > > ---uname output--- > 4.4.0-31, 4.10.0-11 > > Machine Type = N/A > > ---boot type--- > CDROM / ISO image > > ---Install repository type--- > CDROM > > ---Point of failure--- > Other failure during installation (stage 1) > > == Comment: #1 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:12:30 == > Patch for 16.04 multipath-tools > > == Comment: #2 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:12:56 == > Patch for 16.04 linux > > == Comment: #3 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:13:18 == > Patch for 17.04 multipath-tools > > == Comment: #4 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:16:27 == > Patch verification on 16.04: > --------------------------- > > multipath-tools source package: > > # sed -n '/vendor.*XtremIO/,/selector/ p' libmultipath/hwtable.c > .vendor = "XtremIO", > .product = "XtremApp", > .features = DEFAULT_FEATURES, > .hwhandler = DEFAULT_HWHANDLER, > .selector = "queue-length 0", > > - initramfs: > --------- > > Before (module not included in initramfs): > > # dpkg -s multipath-tools-boot | grep ^Version: > Version: 0.5.0+git1.656f8865-5ubuntu2.4 > > # lsinitramfs /boot/initrd.img | grep dm-queue-length > # > > > After (module is included in initramfs): > > # dpkg -i multipath-tools*.deb kpartx*.deb > > # dpkg -s multipath-tools-boot | grep ^Version: > Version: 0.5.0+git1.656f8865-5ubuntu2.4dmqueuelength1 > > # lsinitramfs /boot/initrd.img | grep dm-queue-length > lib/modules/4.4.0-66-generic/kernel/drivers/md/dm-queue-length.ko > > > - kernel udeb: > ----------- > > # dpkg-deb -c > multipath-modules-4.4.0-66-generic-di_4.4.0-66.87dmqueuelength1_ppc64el.udeb > | grep dm-queue-length > -rw-r--r-- root/root 12174 2017-03-14 17:17 > ./lib/modules/4.4.0-66-generic/kernel/drivers/md/dm-queue-length.ko > > > Patch verification on 17.04: > --------------------------- > > Before: > > # dpkg -s multipath-tools-boot | grep ^Version: > Version: 0.6.4-3ubuntu1 > > # lsinitramfs /boot/initrd.img | grep dm-queue-length > # > > After: > > # dpkg -i multipath-tools*.deb kpartx*.deb > > # dpkg -s multipath-tools-boot | grep ^Version: > Version: 0.6.4-3ubuntu1dmqueuelength1 > > # lsinitramfs /boot/initrd.img | grep dm-queue-length > lib/modules/4.10.0-11-generic/kernel/drivers/md/dm-queue-length.ko > > > - kernel udeb: > ----------- > > # dpkg-deb -c > multipath-modules-4.10.0-11-generic-di_4.10.0-11.13dmqueuelength1_ppc64el.udeb > | grep dm-queue-length > -rw-r--r-- root/root 13128 2017-03-15 11:14 > ./lib/modules/4.10.0-11-generic/kernel/drivers/md/dm-queue-length.ko > > == Comment: #5 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:20:14 == > Patch for 17.04 linux > > == Comment: #9 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:24:40 == > @taco-screen-team > > Please assign this bug to @cyphermox for the multipath-tools components, at > least, as a suggestion. > He's handled most of the multipath-tools related bugs/patches we've been > contributing with. > > Thank you. > > == Comment: #10 - Mauricio Faria De Oliveira <mauri...@br.ibm.com> - > 2017-03-15 09:40:17 == > It's possible to reproduce this problem in a qemu-kvm guest, > with an emulated disk: force the queue-length path selector. > > # name=mfo-1704 > # disk=/var/lib/libvirt/images/$name.qcow2 > # iso=/var/lib/libvirt/images/zesty-server-ppc64el.iso.2017-03-14 > > # qemu-img create -f qcow2 $disk 128g > > # virt-install \ > --name $name \ > --cdrom $iso \ > --vcpus 8,sockets=1,cores=1,threads=8 \ > --memory 8192 \ > --controller type=scsi,model=virtio-scsi \ > --disk format=qcow2,path=$disk \ > --disk device=cdrom,readonly=true,path=$iso \ > --network bridge=virbr0,model=virtio > > > Before the disk-detection stage (e.g., set-up users and passwords), > Go Back, Execute a shell, and set up multipath.conf, and resume install: > > ~ # cat <<EOF >/etc/multipath.conf > defaults { > path_selector "queue-length 0" > user_friendly_names yes > find_multipaths no > } > EOF > > ~ # exit > > ** Affects: ubuntu > Importance: Undecided > Assignee: Taco Screen team (taco-screen-team) > Status: New > > > ** Tags: architecture-ppc64le bugnameltc-152598 severity-critical > targetmilestone-inin16043 -- Michael Hohnbaum OIL Program Manager Power (ppc64el) Development Project Manager Canonical, Ltd. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1673350 Title: dm-queue-length module is not included in installer/initramfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1673350/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs