You have been subscribed to a public bug: == Comment: #0 - Praveen K. Pandey - 2016-07-16 10:00:52 == Hi ,
I tried ubuntu16.10 Installation in brazos (configuration 31TB memory and 192 cores) system . installation failing during prom_init when trying to allocate flatten_dt memory) System F/w is FW860.00 (TC860_020). Reproducible Step : 1- Configure Power VM system having profile with 31TB memory and 1 92 Core 2- Start Ubuntu16.10 Installation Actual Result : Installation drop in F/w Console as failing during prom_init Expected Result : Installation Should went through Log: Booting a command list OF stdout device is: /vdevice/v...@30000000nitrd.gz 34.84MiB 100% 3.01MiB/s ] Preparing to boot Linux version 4.4.0-30-generic (buildd@bos01-ppc64el-023) (gcc version 5.3.1 20160413 (Ubuntu/IBM 5.3.1-14ubuntu2.1) ) #49-Ubuntu SMP Fri Jul 1 10:00:36 UTC 2016 (Ubuntu 4.4.0-30.49-generic 4.4.13) Detected machine type: 0000000000000101 Max number of cores passed to firmware: 256 (NR_CPUS = 2048) Calling ibm,client-architecture-support... done command line: BOOT_IMAGE=/ubuntu-installer/ppc64el/yakkety/vmlinux tasks=standard pkgsel/language-pack-patterns= pkgsel/install-language-support=false DEBIAN_FRONTEND=text locale=en_US priority=low console-setup/ask_detect=false console-setup/layoutcode=us netcfg/disable_dhcp=true netcfg/confirm_static=true netcfg/choose_interface=6c:ae:8b:6a:81:98 netcfg/get_ipaddress=9.40.193.34/24 netcfg/get_gateway=9.40.193.1 netcfg/get_nameservers=9.3.1.200 netcfg/get_hostname=ltc-brazos1.aus.stglabs.ibm.com suite=yakkety scsi_mod.scan=sync sshd netcfg/get_domain=aus.stglabs.ibm.com unrestricted= url=tftp://9.3.80.16/tftpboot/ubuntu-installer/ppc64el/ubuntu-server.seed-01-6c-ae-8b-6a-81-98 anna/choose_modules=network-console network-console/start=continue network-console/password=passw0rd network-console/password-again=passw0rd memory layout at init: memory_limit : 0000000000000000 (16 MB aligned) alloc_bottom : 000000000e3e0000 alloc_top : 0000000010000000 alloc_top_hi : 0000000010000000 rmo_top : 0000000010000000 ram_top : 0000000010000000 instantiating rtas at 0x000000000e9e0000... done prom_hold_cpus: skipped copying OF device tree... Building dt strings... Building dt structure... No memory for flatten_device_tree (no room) EXIT called ok 0 > Regards Praveen == Comment: #8 - Sukadev Bhattiprolu - 2016-08-05 02:27:07 == Posted a couple of patches to the community for review: http://marc.info/?l=linux-kernel&m=147037748624043&w=2 http://marc.info/?l=linux-kernel&m=147037768124064&w=2 == Comment: #12 - Sukadev Bhattiprolu - 2016-08-17 19:23:22 == Temporary fix to address the issue while the above patches are being reviewed. == Canonical, Please add the attached temporary fix to 16.10 to address the following issue while the upstream changes are being considered. When booting a very large system with a large initrd we run out of space for the flattened device tree (FDT). To fix this we must increase the space allocated for the RMA region. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Taco Screen team (taco-screen-team) Status: New ** Tags: architecture-ppc64le bugnameltc-143820 severity-critical targetmilestone-inin1610 -- Ubuntu16.10:installation fails on Brazos system (31TB and 192 cores) No memory for flatten_device_tree (no room) https://bugs.launchpad.net/bugs/1614309 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
