------- Comment From hbath...@in.ibm.com 2019-05-10 06:43 EDT------- (In reply to comment #53) > Hi, Hari.
Hi Cascardo, > Is this fixed for the memory hotplug case? Can you verify that? Then, we > could proceed with the SRU, and open a new bug to fix the CPU hotplug case, > if there is one. It does work for memory hotplug case. Sure. Let me follow-up on the CPU hotplug issue with a separate bug.. > And what are those other issues/bugs you mention? Have they been mirrored > yet to launchpad? Are they regressions against makedumpfile/kdump-tools on No regression in the fix packages but issues observed while trying to validate them. Pursuing them in separate bugs. Bug 177452 (mirrored as LP bug 1828187) and Bug 177451 (being screened internally.. will let you know the LP bug # once it is mirrored) Sorry if that confused you.. ** Tags removed: verification-failed-bionic verification-needed verification-needed-cosmic ** Tags added: verification-done verification-done-bionic verification-done-cosmic -- 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/1655280 Title: ISST-LTE:pVM:roselp4:ubuntu 16.04: cp: error reading '/proc/vmcore': Bad address when trying to dump vmcore Status in The Ubuntu-power-systems project: In Progress Status in linux package in Ubuntu: Invalid Status in makedumpfile package in Ubuntu: Fix Released Status in linux source package in Xenial: Invalid Status in makedumpfile source package in Xenial: New Status in linux source package in Bionic: Invalid Status in makedumpfile source package in Bionic: Fix Committed Status in linux source package in Cosmic: Invalid Status in makedumpfile source package in Cosmic: Fix Committed Status in linux source package in Disco: Invalid Status in makedumpfile source package in Disco: Fix Released Bug description: [Impact] After a DLPAR memory/CPU add/remove operation, kdump tools need to be restarted or else kdump tools will fail to capture the crash. [Test] == Comment: #0 - Ping Tian Han <pt...@cn.ibm.com> - 2017-01-09 02:51:00 == ---Problem Description--- Vmcore cannot be saved when triggering bug 150353 on roselp4: Copying data : [ 2.0 %] \/usr/sbin/kdump-config: line 591: 5502 Bus error makedumpfile $MAKEDUMP_ARGS $vmcore_file $KDUMP_CORETEMP [ 512.833872] kdump-tools[5450]: * kdump-tools: makedumpfile failed, falling back to 'cp' [ 573.595449] kdump-tools[5450]: cp: error reading '/proc/vmcore': Bad address [ 573.605717] kdump-tools[5450]: * kdump-tools: failed to save vmcore in /var/crash/201701090223 [ 573.765417] kdump-tools[5450]: * running makedumpfile --dump-dmesg /proc/vmcore /var/crash/201701090223/dmesg.201701090223 [ 574.285506] kdump-tools[5450]: The kernel version is not supported. [ 574.285672] kdump-tools[5450]: The makedumpfile operation may be incomplete. [ 574.285767] kdump-tools[5450]: The dmesg log is saved to /var/crash/201701090223/dmesg.201701090223. [ 574.305422] kdump-tools[5450]: makedumpfile Completed. [ 574.315363] kdump-tools[5450]: * kdump-tools: saved dmesg content in /var/crash/201701090223 [ 574.615688] kdump-tools[5450]: Mon, 09 Jan 2017 02:24:26 -0600 [ 574.705384] kdump-tools[5450]: Rebooting. Stopping ifup for ib0... [ OK ] Stopped ifup for ib0. [ 1008.579897] reboot: Restarting system Contact Information = Ping Tian Han/pt...@cn.ibm.com Carrie Mitsuyoshi/carri...@us.ibm.com ---uname output--- Linux roselp4 4.8.0-34-generic #36~16.04.1-Ubuntu SMP Wed Dec 21 18:53:20 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux Machine Type = lpar ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. config kdump on roselp4 2. try to trigger bug 150353 *Additional Instructions for Ping Tian Han/pt...@cn.ibm.com Carrie Mitsuyoshi/carri...@us.ibm.com: -Post a private note with access information to the machine that the bug is occuring on. == Comment: #3 - Brahadambal Srinivasan <brsri...@in.ibm.com> - 2017-01-10 02:42:25 == root@roselp4:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-4.8.0-34-generic root=UUID=0bcf3431-df8b-499c-9a13-33070f242e0c ro splash quiet crashkernel=384M-:512M root@roselp4:~# dmesg | grep Reser [ 0.000000] Reserving 512MB of memory at 128MB for crashkernel (System RAM: 21760MB) [Regression Potential] The fix applies to makedumpfile, and could impact dump capture. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1655280/+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
