Gentoo Archives: gentoo-user

From: Peter Humphrey <peter@××××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Any fix yet for PTE Read access is not set error?
Date: Fri, 03 Feb 2017 09:03:27
Message-Id: 2214963.C2gLTB4nak@peak
In Reply to: Re: [gentoo-user] Any fix yet for PTE Read access is not set error? by Dale
1 On Thursday 02 Feb 2017 05:12:17 Dale wrote:
2 > Peter Humphrey wrote:
3 > > Hello list,
4 > >
5 > > I was looking through dmesg this morning and found 1231 instances (!) of
6 > > this error:
7 > >
8 > > DMAR: DMAR:[DMA Read] Request device [01:00.0] fault addr f400156000
9 > > DMAR: [fault reason 06] PTE Read access is not set
10 > >
11 > > This is an Intel i7 box with an NVMe SSD and an AMD/ATI Amethyst XT
12 > > Radeon R9 M295X display card. The kernel is gentoo-sources-4.4.39. I've
13 > > tried setting intel_iommu=on or =pt as kernel parameter to no effect. I
14 > > don't want to set it =off because I've read that it slows the machine
15 > > dramatically.
16 > >
17 > > Googling has shown nothing, other than playing with that kernel
18 > > parameter. Does anyone here know what the problem is?
19 >
20 > I'm not sure if it applies but I found this:
21 >
22 > https://forums.gentoo.org/viewtopic-p-7904584.html#7904584
23 >
24 > It should scroll down a bit to the post. The last comment seems to have
25 > a solution.
26 >
27 > Hope that helps. If not, maybe someone else has a better idea.
28
29 Thanks, but no, it makes no difference here.
30
31 --
32 Regards
33 Peter

Replies

Subject Author
Re: [gentoo-user] Any fix yet for PTE Read access is not set error? Mick <michaelkintzios@×××××.com>