Hi Chris & Laurent, Aren't these other 2 ppc64el-specific patches required too? - kexec/ppc64: Handle reserved memory ranges exported by OPAL firmware. - kexec/ppc64: Fix up ELF header and dt for PowerNV platform.
I'm not knowledgeable in kexec, but I see those upstream post-2.0.6 as well. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1364427 Title: kexec-tools: kexeced kernel hung Status in “kexec-tools” package in Ubuntu: In Progress Status in “kexec-tools” source package in Trusty: In Progress Status in “kexec-tools” source package in Utopic: In Progress Bug description: SRU Justification: [Impact] Users of ppc64el hardware need the ability to use kexec kernels. [Test Case] 1) apt-get install kexec-tools 2) sudo kexec -l /boot/vmlinux --initrd=/boot/initrd.img 3) sudo kexec -e 4) Kernel should kexec into current kernel and work [Regression Potential] This patch backports the following patches from upstream kexec-tools: 90853885a859 ppc64/purgatory: Device tree values should be read/stored 2ca220389d21 kexec/ppc64: move to device tree version 17 335bad77fb07 kexec/ppc64: disabling exception handling when building the 45b33eb2e70c ppc64/kdump: Fix ELF header endianess These are all specific to powerpc architecture. -- ---Problem Description--- kexec is not working with kernel 3.16 or later. The root cause is missing patch in the kexec-tools package provided with Ubuntu 14.04 and 14.10. ---uname output--- Linux qemu 3.16.0-10-generic #15-Ubuntu SMP Thu Aug 21 16:32:31 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux Machine Type = P8 ---Steps to Reproduce--- On a 14.10 guest or host, run : $ sudo kexec -l /boot/vmlinux --initrd=/boot/initrd.img-3.16.0-10-generic $ sudo kexec -e The kexeced kernel will hang here : [ 300.002862] Starting new kernel I'm in purgatory The root cause is the following kexec-tools's patch missing: 2ca220389d21 kexec/ppc64: move to device tree version 17 This patch is required to kexec kernel 3.16 and later. Among this patch, the following upstream pactches should be added to the current package : 335bad77fb07 kexec/ppc64: disabling exception handling when building the purgato 90853885a859 ppc64/purgatory: Device tree values should be read/stored in Big En In addition the following incoming patch should be applied : ppc64/kdump: Fix ELF header endianess (http://lists.infradead.org/pipermail/kexec/2014-July/012247.html) Another option to consider is to move to kexec-tools 2.0.7, and to apply the missing patches Is it possible to get this patches also applied to the kexec-tools shipped with 14.04 ? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1364427/+subscriptions -- 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
