Public bug reported: After creating a test crash (echo c > /proc/sysrq-trigger), the Ubuntu splash screen is shown for around 20 seconds, with the dots being filled and cleared, then the system restarts into, what I assume is, the configured kdump-initrd-image and gives me a busybox shell. The system's root is not mounted, its block-device is not available under /dev.
Rebooting from there back to the normal system shows no dumped kernel under the configured /var/crash directory. /var/crash is part of the root fs, an ext4 mounted from /dev/nvme0n1p3 Expected behaviour: echo c > /proc/sysrq-trigger should give a kdump file in /var/crash Actual behavior: no file i /var/crash, a busybox shell in the kexec:ed kernel. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: kexec-tools 1:2.0.10-1ubuntu2 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 Uname: Linux 4.4.0-57-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 CurrentDesktop: Unity Date: Thu Jan 5 21:38:57 2017 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 EcryptfsInUse: Yes InstallationDate: Installed on 2017-01-03 (2 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 SourcePackage: kexec-tools UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.default.grub.d.kexec-tools.cfg: GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT crashkernel=384M-:256M" mtime.conffile..etc.default.grub.d.kexec-tools.cfg: 2017-01-05T18:09:40.998631 ** Affects: kexec-tools (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1654394 Title: No kdump is created To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1654394/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
