Public bug reported: == Comment: #0 - Hari Krishna Bathini <hbath...@in.ibm.com> - 2019-05-07 13:37:51 == ---Problem Description--- On 4.18.0-18-generic kernel, kexec load command throws below traces:
--- Regular kexec load: root@ubuntu:~# kexec -l --append="`cat /proc/cmdline`" --initrd=/boot/initrd.img-`uname -r` /boot/vmlinux-`uname -r` /proc/device-tree/ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory: No such file or directory Modified cmdline:BOOT_IMAGE=/boot/vmlinux-4.18.0-18-generic root=UUID=1aa9458c-3974-4cb4-9ab3-9ee03c0f4e5e ro crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M@128M root@ubuntu:~# --- KDump kernel load: root@ubuntu:~# kdump-config unload * unloaded kdump kernel root@ubuntu:~# kdump-config load * Creating symlink /var/lib/kdump/vmlinuz * Creating symlink /var/lib/kdump/initrd.img /proc/device-tree/ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory: No such file or directory /proc/device-tree/ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory: No such file or directory Modified cmdline:BOOT_IMAGE=/boot/vmlinux-4.18.0-18-generic root=UUID=1aa9458c-3974-4cb4-9ab3-9ee03c0f4e5e ro maxcpus=1 systemd.unit=kdump-tools-dump.service irqpoll noirqdistrib nousb elfcorehdr=158912K * loaded kdump kernel root@ubuntu:~# --- Contact Information = hbath...@in.ibm.com ---uname output--- Linux ubuntu 4.18.0-18-generic #19~18.04.1-Ubuntu SMP Fri Apr 5 10:21:11 UTC 2019 ppc64le ppc64le ppc64le GNU/Linux ---Additional Hardware Info--- na Machine Type = na ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Load panic kernel or regular kernel with kexec command: kdump-config unload; kdump-config load OR kexec -l --append="`cat /proc/cmdline`" --initrd=/boot/initrd.img-`uname -r` /boot/vmlinux-`uname -r` Actual Result: DT files are not found while loading the kernel Expected result: kexec loads without any warning/error messages Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kexec-tools Userspace tool obtained from project website: na *Additional Instructions for hbath...@in.ibm.com: -Attach ltrace and strace of userspace application. == Comment: #1 - Hari Krishna Bathini <hbath...@in.ibm.com> - 2019-05-07 13:44:25 == Since v4.16 kernel, ibm,dynamic-memory-v2 Device Tree Property is supported in the kernel. This leaves kexec-tools on ppc64le broken without the below fix patches: https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=c740fdb2048265551f77d3f0fe53b2fddc0c8489 ("kexec: add a helper function to add ranges") https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=b10924a7da3ca48c04982cd23daf04882afb1a87 ("kexec/ppc64: add support to parse ibm, dynamic-memory-v2 property") ** Affects: kexec-tools (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64le bugnameltc-177452 severity-high targetmilestone-inin--- ** Tags added: architecture-ppc64le bugnameltc-177452 severity-high targetmilestone-inin--- ** Changed in: ubuntu Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Package changed: ubuntu => kexec-tools (Ubuntu) -- 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/1828187 Title: ibm,dynamic-memory property not found while loading kexec kernel (4.18.0-18-generic) Status in kexec-tools package in Ubuntu: New Bug description: == Comment: #0 - Hari Krishna Bathini <hbath...@in.ibm.com> - 2019-05-07 13:37:51 == ---Problem Description--- On 4.18.0-18-generic kernel, kexec load command throws below traces: --- Regular kexec load: root@ubuntu:~# kexec -l --append="`cat /proc/cmdline`" --initrd=/boot/initrd.img-`uname -r` /boot/vmlinux-`uname -r` /proc/device-tree/ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory: No such file or directory Modified cmdline:BOOT_IMAGE=/boot/vmlinux-4.18.0-18-generic root=UUID=1aa9458c-3974-4cb4-9ab3-9ee03c0f4e5e ro crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M@128M root@ubuntu:~# --- KDump kernel load: root@ubuntu:~# kdump-config unload * unloaded kdump kernel root@ubuntu:~# kdump-config load * Creating symlink /var/lib/kdump/vmlinuz * Creating symlink /var/lib/kdump/initrd.img /proc/device-tree/ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory: No such file or directory /proc/device-tree/ibm,dynamic-reconfiguration-memory/ibm,dynamic-memory: No such file or directory Modified cmdline:BOOT_IMAGE=/boot/vmlinux-4.18.0-18-generic root=UUID=1aa9458c-3974-4cb4-9ab3-9ee03c0f4e5e ro maxcpus=1 systemd.unit=kdump-tools-dump.service irqpoll noirqdistrib nousb elfcorehdr=158912K * loaded kdump kernel root@ubuntu:~# --- Contact Information = hbath...@in.ibm.com ---uname output--- Linux ubuntu 4.18.0-18-generic #19~18.04.1-Ubuntu SMP Fri Apr 5 10:21:11 UTC 2019 ppc64le ppc64le ppc64le GNU/Linux ---Additional Hardware Info--- na Machine Type = na ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Load panic kernel or regular kernel with kexec command: kdump-config unload; kdump-config load OR kexec -l --append="`cat /proc/cmdline`" --initrd=/boot/initrd.img-`uname -r` /boot/vmlinux-`uname -r` Actual Result: DT files are not found while loading the kernel Expected result: kexec loads without any warning/error messages Userspace tool common name: kexec-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kexec-tools Userspace tool obtained from project website: na *Additional Instructions for hbath...@in.ibm.com: -Attach ltrace and strace of userspace application. == Comment: #1 - Hari Krishna Bathini <hbath...@in.ibm.com> - 2019-05-07 13:44:25 == Since v4.16 kernel, ibm,dynamic-memory-v2 Device Tree Property is supported in the kernel. This leaves kexec-tools on ppc64le broken without the below fix patches: https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=c740fdb2048265551f77d3f0fe53b2fddc0c8489 ("kexec: add a helper function to add ranges") https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=b10924a7da3ca48c04982cd23daf04882afb1a87 ("kexec/ppc64: add support to parse ibm, dynamic-memory-v2 property") To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1828187/+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
