Hello bugproxy, or anyone else affected, Accepted makedumpfile into disco-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/makedumpfile/1:1.6.5-1ubuntu1.1 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-disco to verification-done-disco. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-disco. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: makedumpfile (Ubuntu Disco) Status: New => Fix Committed ** Tags added: verification-needed verification-needed-disco -- 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/1828597 Title: KDump boot fails with nr_cpus=1 Status in The Ubuntu-power-systems project: Confirmed Status in kexec-tools package in Ubuntu: Invalid Status in linux package in Ubuntu: Confirmed Status in makedumpfile package in Ubuntu: Fix Released Status in makedumpfile source package in Bionic: Fix Committed Status in kexec-tools source package in Cosmic: Invalid Status in kexec-tools source package in Disco: Invalid Status in linux source package in Disco: Confirmed Status in makedumpfile source package in Disco: Fix Committed Status in kexec-tools source package in Eoan: Invalid Status in linux source package in Eoan: Confirmed Status in makedumpfile source package in Eoan: Fix Released Bug description: [Impact] The kdump kernel will crash during its boot if booted on a CPU other than 0. [Test case] Trigger a crash using taskset -c X, where X is not 0 and is a present CPU. Check that the dump is successful. echo c | sudo taskset -c 1 tee /proc/sysrq-trigger [Regression potential] This will cause more memory to be used by the dump kernel, which may cause OOMs during the dump. The fix is restricted to ppc64el. == Comment: #0 - Hari Krishna Bathini - 2019-05-10 06:38:21 == ---Problem Description--- kdump boots fails in some environments when nr_cpus=1 is passed ---uname output--- na Machine Type = na ---Debugger--- A debugger is not configured ---Steps to Reproduce--- 1. configure kdump 2. trigger crash on non-boot cpu Expected result: Capture dump and reboot Actual result: Hang in early kdump boot process after crash Userspace tool common name: kdump-tools The userspace tool has the following bit modes: 64-bit Userspace rpm: kdump-tools Userspace tool obtained from project website: na == Comment: #1 - Hari Krishna Bathini - 2019-05-10 06:45:46 == Launchpad bug 1560552 added "nr_cpus=1" support on ppc64 though this change never made it upstream as maintainer has a few apprehensions.. With 4.18 kernels, this change is dropped on Ubuntu kernels too. With nr_cpus=1 support in kernel, kdump-tools was also updated to use "nr_cpsu=1" by default instead of "maxcpus=1" (see launchpad bug 1568952). This kdump-tools change has to be reverted to make it consist with the kernel change. Note that "nr_cpus=1 change had a issues in kdump guest environment even with "nr_cpus=1" support for kdump in kernel. So, even not withstanding the kernel revert, it is better to default to "maxcpus=1" on all kernel versions. So, please revert the kdump-tools fix that went in with launchpad bug 1568952 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1828597/+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
