Ubuntu
linux package

  1. Bug #653238
  2. Comment #8

Comment 8 for bug 653238

Revision history for this message
Bjorn Helgaas (bjorn-helgaas) wrote :

This is a different problem from bug #64703.

In this problem, the Dell T3500 panics when we move a USB device into an e820-reserved area. There's a patch upstream that fixes this (commit 4dc2287c1805e7fe8a7cb90bbcd44abee8cdb914, see https://bugzilla.kernel.org/show_bug.cgi?id=16228).

In bug #647043, Dell 1536 we also move USB devices, but the new address is not in an e820-reserved area, and the machine doesn't panic. The USB devices just don't work. We don't understand this problem yet (see https://bugzilla.kernel.org/show_bug.cgi?id=31602).

Coincidentally, the same workaround, "pci=nocrs", works for both bugs.