I tried the card in a USB card reader in the same laptop and it also failed and gave a SW-IOMMU warning in dmesg (with no kernel stracktrace though).
I have now rebooted the machine and both the built-in and USB card readers work perfectly with no warnings. Beforehand, the laptop had been in and out of suspend all week and IIRC hadn't been rebooted so it might have been caused by something else and just triggered here. I will try to isolate the cause next week. BTW, There was no kernel update applied over the reboot that fixed it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001871 Title: 'DMA: Out of SW-IOMMU space' errors using SD cards on Thinkpad X220 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1001871/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
