Hi there was a slight issue in the repro relying on sda5, I changed that to be on shm as well. 2x800M are easy to spare. Hope it triggers with that as well.
# Get a 3G guest with full console logging $ uvt-simplestreams-libvirt --verbose sync --source http://cloud-images.ubuntu.com/daily arch=amd64 label=daily release=xenial $ uvt-kvm create --password=ubuntu --log-console-output --memory 3096 xenial-bcache-test release=xenial arch=amd64 label=daily # setup guest into the crash in the guest $ sudo apt update $ sudo apt install fio $ wget https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1724173/+attachment/5008126/+files/bcachecrash.tgz $ tar xvf bcachecrash.tgz # Add in the fixed version of crash-setup from http://paste.ubuntu.com/26063669/ $ sudo ./bcachecrash/crash-setup $ sudo ./bcachecrash/crash-attach # now on two consoles $ sudo ./bcachecrash/crash-grep $ sudo ./bcachecrash/crash-fio Not sure if it triggers the bug, but with those fixes it runs ... Will let you know if it crashed the kernel before I needed to recycle the machine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1724173 Title: bcache makes the whole io system hang after long run time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-xenial/+bug/1724173/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
