------- Comment From [email protected] 2016-04-15 09:39 EDT------- well, here my complete proposed wording:
Depending on the number of available devices the amount of memory specified by the "crashkernel" kernel parameter in /etc/zipl.conf may not be sufficient. One can either increase it further, or limit the amount of devices visible to the kernel, and thus lower the requirements for the "crashkernel" setting. To ignore devices you can run the "cio_ignore" tool to generate an appropriate stanza to ignore all devices, except the currently active /in-use. $ sudo cio_ignore -u -k cio_ignore=all,!c000-c002,!e000,!e100 You can simply add the "cio_ignore" kernel parameter with the stanza from above to KDUMP_CMDLINE_APPEND in /etc/default/kdump-tools and activate the setting with "systemctl restart kdump-tools.service". As an alternative which blacklists the channel devices also for the production system, you can add the generated stanza to the boot parameters in /etc/zipl.conf. To activate the setting call "zipl -V" and then reboot the system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1564475 Title: 128M is not enough for kdump on s390 LPARs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1564475/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
