Comment 9 for bug 663182

This seems to be a duplicate of:

 - https://bugs.launchpad.net/ubuntu/+bug/653238
 - https://bugs.launchpad.net/ubuntu/+bug/658560
 - https://bugs.launchpad.net/ubuntu/+bug/659149

There was already a bugzilla entry on kernel.org:

 - https://bugzilla.kernel.org/show_bug.cgi?id=16228

Other distros had been affected as well, most of them in June already:

 - https://bugzilla.redhat.com/show_bug.cgi?id=620313
 - http://fedoraproject.org/wiki/KernelCommonProblems (at the bottom of the page)
 - http://forums.gentoo.org/viewtopic-p-6455079.html
 - https://bbs.archlinux.org/viewtopic.php?pid=779136

Inserting pci=nocrs in the kernel line in grub seems to solve it. Since this bug is so well known, I wonder why Ubuntu didn't include it by default for the Dell T3500.