You have been subscribed to a public bug: Under memory pressure, my VM locks up. This has been reported upstream though I don't know how far any solution has progressed.
https://bugzilla.kernel.org/show_bug.cgi?id=201603 Feb 6 07:15:42 vps632258 kernel: [151336.450064] z3fold: unknown buddy id 0 Feb 6 07:15:42 vps632258 kernel: [151336.454450] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 The little bit of log I managed to salvage is attached. This has happened to two identical VMs. Unusually it has not occurred on a third VM which is configured the same but has less RAM (fingers crossed it won't). Irrelevant information: I thought the lock-ups were due to me using a BTRFS filesystem, however I swapped over to NILFS2 and this still occurs. The only difference seems to be that I am now able to grab some of the kernel output. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.18.0-14-generic 4.18.0-14.15~18.04.1 ProcVersionSignature: Ubuntu 4.18.0-14.15~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-14-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 Date: Wed Feb 6 10:55:05 2019 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: linux-signed-hwe UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux Importance: High Status: Fix Released ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic kernel-bug kernel-fixed-upstream -- NULL pointer dereference when using z3fold and zswap https://bugs.launchpad.net/bugs/1814874 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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
