This still looks like the getrandom() hang described in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=897572. This was caused by the fix in the kernel for CVE-2018-1108. Two complementary fixes have been discussed in the Debian bug neither of which modify the kernel. The first is a change to the Plymouth package to avoid fontconfig generating uuids, which reportedly has the added bonus of speeding up boot compared to pre-CVE-fix times. The second is a change to randutils in the utils-linux package so they don't block on getrandom().
There's a link to the updated plymouth package which I tried: https://packages.debian.org/sid/amd64/plymouth/download Unfortunately all I got was a black screen, with or without haveged installed. This is not the getrandom hang. The screen remains black and no log is displayed. I suspect this is because some modification to the package or config files is needed for Ubuntu. Or maybe some other package needed reconfiguring due to the change plymouth. I'm no Ubuntu expert. As I stated in comment #48, if these fixes indeed work, when properly incorporated into Ubuntu, they are preferable to backing out the CVE fix. -- 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/1779827 Title: failure to boot with linux-image-4.15.0-24-generic Status in Ubuntu: Confirmed Status in linux package in Ubuntu: In Progress Status in The Bionic Beaver: Confirmed Status in linux source package in Bionic: Fix Committed Bug description: This was the last OK then my 18.04 hangs after an update this morning. 07:00 AM CEST Last Ok in boot was Started gnome display manager. dispatcher service ...... tem changes.pp link was shut down Tried install lightdm from command line and the response was lastest already installed. Probably it is what is coming after the lastest OK which is to be the error. And here I have lots of guesses...... Any Ideas ? I need to do some work and I may not be waiting long. Search and browsed and now close to give up. Yeah it is a Lenovo. Guys: turn of auto update it is a machine killer. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1779827/+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
