[ltp] x201s experience?

[Nathaniel Smith]

On Fri, Jul 29, 2011 at 3:21 PM, Yves-Alexis Perez <corsac@debian.org> wrote:
> On ven., 2011-07-29 at 09:32 -0400, Robert Tomsick wrote:
>> What distro/version are you running?
>>
>> There have been a couple of nasty i915 bugs over the last couple
>> years,
>> so knowing what you're running might provide some insight into whether
>> or not they're what's biting you.
>
> As said somewhere else in the thread, Debian Sid. But I've found the
> culprit, I use intel_iommu=on in order to activate the I/O MMU. I've
> reported a bug (https://bugzilla.kernel.org/show_bug.cgi?id=40332) but
> it was marked as invalid. I cooked a patch which (for now) seem to work
> so I'll submit it there.

Hmm. I don't use that; my dmesg says
  [    1.282462] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
But like I said, I've still been seeing similar issues, which must
have a different cause. So I'd be curious to know whether or not you
still get crashes if you leave the iommu off. (And I've set up
netconsole now too, thanks for the idea.)

-- Nathaniel