------- Comment From naveed...@in.ibm.com 2018-02-26 08:18 EDT------- (In reply to comment #24) > Hi. > > As of now, the package is only ready for bionic, so this would need to be > tested on bionic. Also, there is a problem on some of the KPTI kernels that > includes 4.13 and 4.4 (but not the current 4.15 on bionic). This problem > requires a package that is now on my ppa, no you will need to install > makedumpfile from that. > > As this patch would be required for any xenial backport, I am requesting > that you test it on bionic right now, with 4.13 kernel. Otherwise, I can't > push something that is not tested on real ppc64el hardware to xenial. Can > you do that? > > Thank you very much. > Cascardo.
Thank you Cascardo for the reply, We tested in couple of systems with 512GB RAM and we are able to use your makedumpfile to dump the vmcore on 4.13.0-32-generic kernel on Bionic. ==console log=== # dpkg -s makedumpfile Package: makedumpfile Status: install ok installed Priority: optional Section: devel Installed-Size: 493 Maintainer: Louis Bouchard <louis.bouch...@ubuntu.com> Architecture: ppc64el Version: 1:1.6.3-1ubuntu1 Replaces: kdump-tools (<< 1.3.4-1~) Depends: libc6 (>= 2.17), libdw1 (>= 0.143), libelf1 (>= 0.142), liblzo2-2, zlib1g (>= 1:1.2.0), perl:any Recommends: crash, kexec-tools Description: VMcore extraction tool This program is used to extract a subset of the memory available either via /dev/mem or /proc/vmcore (for crashdumps). It is used to get memory images without extra unneeded information (zero pages, userspace programs, etc). Starting Kernel crash dump capture service... [ 26.303566] kdump-tools[1369]: Starting kdump-tools: * running makedumpfile -c -d 31 /proc/vmcore /var/crash/201802260805/dump-incomplete Copying data : [100.0 %] | eta: 0s [ 57.183844] kdump-tools[1369]: The dumpfile is saved to /var/crash/201802260805/dump-incomplete. [ 57.183934] kdump-tools[1369]: makedumpfile Completed. [ 57.194154] kdump-tools[1369]: * kdump-tools: saved vmcore in /var/crash/201802260805 [ 60.095854] kdump-tools[1369]: * running makedumpfile --dump-dmesg /proc/vmcore /var/crash/201802260805/dmesg.201802260805 [ 60.135142] kdump-tools[1369]: The dmesg log is saved to /var/crash/201802260805/dmesg.201802260805. [ 60.135301] kdump-tools[1369]: makedumpfile Completed. [ 60.135439] kdump-tools[1369]: * kdump-tools: saved dmesg content in /var/crash/201802260805 [ 60.446625] kdump-tools[1369]: Mon, 26 Feb 2018 08:06:14 -0500 [ 60.736484] kdump-tools[1369]: Rebooting. =========== Can you point this makedumpfile over web link which we can wget to install it on 16.04.4 (reason we are asking this is, we will be doing hardware certifications and kdump test will fail on 16.04.4) We request for your comment on inclusion of this version makedumpfile on 16.04.4 after we test it. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to makedumpfile in Ubuntu. https://bugs.launchpad.net/bugs/1746299 Title: update makedumpfile tool version to v1.6.3 Status in The Ubuntu-power-systems project: In Progress Status in makedumpfile package in Ubuntu: Fix Released Bug description: [Impact] New upstream kernel versions, as those in linux-hwe package, require a newer makedumpfile to be supported. Otherwise, all copies fallback to copying the entire memory. [Test case] kdump-tools has been installed, system rebooted, then crash trigerred and verified that a small dump file was present on /var/crash/. Tested on amd64 and ppc64le. [Regression potential] Many other bug fixes have been included in the latest version of the package. The changes are supposed to fix these bugs, and have been tested as well. However, as the total of changes is not trivial, there is impact of regression that has been minimized by the tests done. Regression potential of not supporting older kernels has been tested with the kernels shipped on xenial and artful as well. ==================================================================== == Comment: #0 - Hari Krishna Bathini <hbath...@in.ibm.com> - 2018-01-30 10:46:53 == ---Problem Description--- update makedumpfile to latest version v1.6.3 that officially supports up to kernel version 4.14.8. Since makedumpfile is inherently backward compatible, this would not break existing functionality.. Contact Information = hbath...@in.ibm.com ---uname output--- na Machine Type = na ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Â makedumpfile reports ""The kernel version is not supported" while generating vmcore Also, there is a possibility of bogus address translations in makedumpfile tool with missing upstream patches. Can't be so sure without an exhaustive testing. Instead, it would be a good idea to go with the version which officially supports the kernel version in question. Userspace tool common name: makedumpfile The userspace tool has the following bit modes: 64-bit Userspace rpm: makedumpfile 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> - 2018-01-30 10:49:13 == With kernel version updated to 4.13.0, please update makedumpfile tool version to 1.6.3 which officially supports up to kernel version 4.14.8 [1]. Thanks Hari [1] http://lists.infradead.org/pipermail/kexec/2018-January/019853.html This needs to be tagged for both 16.04.4 & 18.04 releases To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1746299/+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
