My backlog is full too and this isn't a joke:). I am out of a context of overlayfs, so I will need to read its sources, then figure out what change in the ubuntu kernel has introduced this issue, learn how to compile and test the ubuntu kernel... All these could sound fun 10 years ago, but now there are too much fun around me to eat it all :).
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1857257 Title: linux-image-5.0.0-35-generic breaks checkpointing of container Status in linux package in Ubuntu: Confirmed Bug description: Trying to checkpoint a container (docker/podman) on 18.04 fails starting with linux-image-5.0.0-35-generic. We (CRIU upstream) see this in Travis starting a few weeks ago. Manually testing it locally shows that linux-image-5.0.0-32-generic still works and linux- image-5.0.0-35-generic does not longer work. It seems to be overlayfs related, at least that is what we believe. The CRIU error message we see is: (00.170944) Error (criu/files-reg.c:1277): Can't lookup mount=410 for fd=-3 path=/bin/busybox (00.170987) Error (criu/cr-dump.c:1246): Collect mappings (pid: 1637) failed with -1 We have not seen this only in Travis, but also multiple CRIU users reported that bug already. Currently we have to tell them to downgrade the kernel. I also able to reproduce it with linux-image-5.3.0-24-generic. Staying on the 4.18.0 kernel series does not show this error. 4.18.0-25-generic works without problems. See also https://github.com/checkpoint-restore/criu/issues/860 One of the possible explanations from our side include: "Looks like we have the same as for st_dev now with mnt_id, that is bad, because we can't find on which mount to open the file if kernel hides these information from us." Running on the upstream 5.5.0-rc1 kernel does not show this error. --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 7 18:52 seq crw-rw---- 1 root audio 116, 33 Jan 7 18:52 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 19.10 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: DigitalOcean Droplet Package: linux (not installed) PciMultimedia: ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-26-generic root=PARTUUID=5b57f3f9-086a-4a7d-ae78-efdee8842586 ro console=tty1 console=ttyS0 ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13 RelatedPackageVersions: linux-restricted-modules-5.3.0-26-generic N/A linux-backports-modules-5.3.0-26-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: eoan uec-images Uname: Linux 5.3.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 12/12/2017 dmi.bios.vendor: DigitalOcean dmi.bios.version: 20171212 dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnDigitalOcean:bvr20171212:bd12/12/2017:svnDigitalOcean:pnDroplet:pvr20171212:cvnBochs:ct1:cvr: dmi.product.family: DigitalOcean_Droplet dmi.product.name: Droplet dmi.product.version: 20171212 dmi.sys.vendor: DigitalOcean To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857257/+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
