Thank you very much for reporting this issue. Could you please provide more information? Please boot into the Ubuntu kernel and run the following command in a terminal to collect debugging information and attach it to this report.
$ sudo apport-collect 2168717 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2168717 Title: [7.0.0-34-generic] ThinkPad W520 panics in iommu_dma_unmap_sg during USB/UAS recovery To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2168717/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
