------- Comment From hbath...@in.ibm.com 2015-02-10 10:04 EDT------- Below is the documentation for fadump: ________________
Firmware-assisted dump Firmware Assisted Dump (fadump) is an alternative to kdump crash dumping mechanism, available in powerpc architecture. To understand how fadump works, please refer to the kernel documentation below: https://www.kernel.org/doc/Documentation/powerpc/firmware-assisted- dump.txt Two steps are needed to use fadump as the crash dumping mechanism. Firstly, enabling fadump by passing "fadump=on" to kernel. Secondly, registering fadump by echo'ing `1` to /sys/kernel/fadump_registered. 1. To enable fadump: a. Add "fadump=on" to GRUB_CMDLINE_LINUX in /etc/default/grub file. b. Rebuild grub config # grub-mkconfig -o /boot/gru/grub.cfg c. Reboot 2. To register fadump: kdump-tools, scripts and tools for automating kdump, is updated to make it fadump aware. When fadump is enabled, kdump-tools registers fadump as crash dumping mechanism, by echo'ing `1` to /sys/kernel/fadump_registered. For more help, see: # kdump-config help NOTE: If fadump fails to collect dump with Out Of Memory error, use "fadump_reserve_mem=" parameter to spike up the memory reserved for firmware-assisted dump. ____________________ Breno, please add this to https://wiki.ubuntu.com/ppc64el/ Thanks Hari -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1415562 Title: [Ubuntu 15.04] Support firmware assisted dump on ppc64le To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1415562/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
