Also ran across this bug. It came up on my VMware system under a Windows 10 host, seemingly due to an issue with VMWare kicking network in and out very, very rapidly. Constant disk and CPU activity perked up as soon as I connected the VM to the host bridge, and the "network is disconnected" message came and went. The activity never stopped, I fell asleep (... yep), and when I came back to it, a new message about low disk space was there as well. I examined the drive and found this log file exploded to 11 GB. Googled it, found this thread.
VMWare apparently has an issue with networking in Windows 10, where bridged networking no longer works at all even with the VMWare Bridge networking service added back after the upgrade, and with VMWare repaired with the latest installer. It's a pretty clean system but it's been upgraded from one version to the next as Ubuntu's been updated over the years. In the interest of bug-squishing, I compressed the 11GB file down to 11MB (yay, 7-Zip!), and posted it here. I'm primarily a Windows guy with fair knowledge of Linux, so hopefully this isn't a hassle to open... Dropbox has become too unreliable to use for hosting files, so I've got to post it on my OneDrive. http://1drv.ms/1pPNTjH Hope this helps! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1269838 Title: gnome-session.log takes 8 GB in a few hours To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1269838/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs