kernel-packages team mailing list archive

[Andy Whitcroft <apw@xxxxxxxxxxxxx>]

Ok it looks like there might be more than one define for this.  So I
have tried to sort that out, and at the same time added some debug to
allow us to further diagnose should this one fail.  Please test the
latest kernel at the URL below, and report back here.  As before a dmesg
from the kernel success or failure please:

    http://people.canonical.com/~apw/lp1306677-trusty/

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https://bugs.launchpad.net/bugs/1306677

Title:
  [PPC64EL] kernel command line gets truncated at 512

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  Booting the PPC64EL kernel the command line get truncated at 512
  characters. This looks to be a hard limit defined in
  arch/powerpc/boot/opts.h.

  The MaaS project, needs to be able to provide a command line longer
  than 512 characters, as iscsi targets and cloud-init parameters are
  passed through the kernel command line.

  Command line passed to kernel through grub:
  nomodeset iscsi_target_name=iqn.2004-05.com.ubuntu:maas:ephemeral-ppc64el-generic-trusty-daily iscsi_target_ip=10.245.71.1 iscsi_target_port=3260 iscsi_initiator=maas-enlist ip=::::maas-enlist:BOOTIF ro root=/dev/disk/by-path/ip-10.245.71.1:3260-iscsi-iqn.2004-05.com.ubuntu:maas:ephemeral-ppc64el-generic-trusty-daily-lun-1 overlayroot=tmpfs cloud-config-url=http://10.245.71.1/MAAS/metadata/latest/enlist-preseed/?op=get_enlist_preseed log_host=10.245.71.1 log_port=514 -- console=hvc0,19200n8 console=hvc1,19200n8 console=ttyS1,19200n8 BOOTIF=01-4a:03:3e:b8:37:66

  Command line truncated by the kernel:
  BOOT_IMAGE=ppc64el/generic/trusty/daily/boot-kernel nomodeset iscsi_target_name=iqn.2004-05.com.ubuntu:maas:ephemeral-amd64-generic-trusty-daily iscsi_target_ip=10.245.71.1 iscsi_target_port=3260 iscsi_initiator=maas-enlist ip=::::maas-enlist:BOOTIF ro root=/dev/disk/by-path/ip-10.245.71.1:3260-iscsi-iqn.2004-05.com.ubuntu:maas:ephemeral-amd64-generic-trusty-daily-lun-1 overlayroot=tmpfs cloud-config-url=http://10.245.71.1/MAAS/metadata/latest/enlist-preseed/?op=get_enlist_preseed log_host=10.245.71.1 log_

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