after doing a wipefs on the cache drive the BUG still occured; wipefs's the backing drive corrected that. I haven't yet tried wiping just the backing drive.
** Summary changed: - 8k bcache cache NULL pointer deref on mount / can't boot + 8k bcache NULL pointer deref on mount / can't boot -- 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/1809748 Title: 8k bcache NULL pointer deref on mount / can't boot Status in linux package in Ubuntu: Confirmed Bug description: After creating a bcache cache device with an 8k block size (see #1662407), a kernel oops happens every time device is probed. I'm not sure that there is any userspace bug present in #1662407 at all - it may just be kernel. I've attached a dmesg there, but can't actually get into the system at the moment to get apport-collect or other diagnostics. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1809748/+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
