User over on users@ list reports booting Fedora 22 Workstation (live media), and doing: # dnf install "Developer Tools" Implodes. I've reproduced the problem, and the gist is that there's a dm snapshot that's too small for this task, it gets full quickly, the file system face plants, and the kernel oopses. No recovery is possible. Long version [1]. Question 1: Should this work better and be a supported use case? Question 2: If so how to fix it? Change the configuration for a bigger snapshot? Or use thin provisioning snapshot? Or overlayfs? I haven't tested livecd-iso-to-disk --overlay-size-mb option, but I give it better than even odds that for the baremetal case it will work and might be a suitable work around. Thoughts? [1] If a bug should be filed, let me know what to file it against. I have no idea what's responsible for the configuration of the install media's live environment itself. # dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 230544/1048576 912 # dnf group install "Development Tools" ## I allow metadata to download. Total metadata downloaded 41MB (stable branch) and 13MB (updates branch). # dmsetup status [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 484016/1048576 1896 So the snapshot is filling up. Continue with download and install of packages, while continue to check dmsetup status and eventually I get to this: [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 691048/1048576 2704 [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 703536/1048576 2752 [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 716320/1048576 2800 [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 716400/1048576 2800 [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot 716464/1048576 2800 [root@localhost ~]# dmsetup status live-base: 0 12582912 linear live-osimg-min: 0 12582912 snapshot 3664/3664 24 live-rw: 0 12582912 snapshot Invalid [root@localhost ~]# dmesg -bash: /usr/bin/dmesg: Input/output error Separately I had a journalctl -f running and it captures [ 928.709182] localhost kernel: device-mapper: snapshots: Invalidating snapshot: Unable to allocate exception. And then a long pile of ext4 errors. -- Chris Murphy -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
