Ubuntu
linux package

  1. Bug #238118
  2. Comment #24

Comment 24 for bug 238118

Revision history for this message
Timm Essigke (essigke) wrote :

I found bug #232017 which sounds very similar to me. Setting swiotlb=128 fixed the problem in this case. I get an error similar to swiotlb=force. For values of 64 and 16 I get "BUG: soft lockup - CPU#1 stuck for 11s!", while 16 seems a bit more stable.
With swiotlb=0, 2 or 8 I am back to the original kernel bug.
I searched for the "soft lockup" bug, but couldn't find anything useful so far. acpi=off does not help. Somewhere a kernel >= 2.6.25 was suggested... - not sure if it is worth trying to compile.
Most reports are X related, but I don't have X on the machine.

I'll keep on digging!