From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 214259] New: Discrete Thunderbold Controller 8086:1137 throws DMAR and XHCI errors and is only partially functional
Date: Wed, 01 Sep 2021 13:44:11 +0000 [thread overview]
Message-ID: <bug-214259-208809@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=214259
Bug ID: 214259
Summary: Discrete Thunderbold Controller 8086:1137 throws DMAR
and XHCI errors and is only partially functional
Product: Drivers
Version: 2.5
Kernel Version: 5.13.12 and 5.14-rc7
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: USB
Assignee: drivers_usb@kernel-bugs.kernel.org
Reporter: wse@tuxedocomputers.com
Regression: No
Affected devices: Clevo X170KM Barebone (I have one here) and according to this
reddit thread that describes the exact same problem a Thunderbold PCIe
exapansion card:
https://www.reddit.com/r/Thunderbolt/comments/ohjakr/asus_thunderboltex_4_linux_compatability/
The Clevo does not use the build in thunderbold controler of the CPU but a
discrete Thunderbold controler, which seems to be the exact same one from that
expansion card with the pci id of 8086:1137.
High level problem desciption: I have Thunderbold dock with DP-out, USB ports
and an Ethernet port. When I plug it in, only the DP port works. When its
plugged in before boot, ethernet also works. The USB ports on the Dock never
work.
dmesg is showing several erros regarding DMAR and xhci, since the DMAR errors
are shwing up first is suspect them to be the root cause making the rest
afterwards fails also.
The error is slightly different between 5.13 and 5.14
5.14-rc7:
[ 3.148557] DMAR: DRHD: handling fault status reg 2
[ 3.148561] DMAR: [DMA Write NO_PASID] Request device [0x04:0x00.0] fault
addr 0x69974000 [fault reason 0x05] PTE Write access is not set
5.13.12:
[ 3.737783] DMAR: DRHD: handling fault status reg 2
[ 3.737790] DMAR: [DMA Write] Request device [04:00.0] PASID ffffffff fault
addr 69974000 [fault reason 05] PTE Write access is not set
04.00.0 is the thunderbold controller:
04:00.0 USB controller [0c03]: Intel Corporation Thunderbolt 4 NHI [Maple Ridge
4C 2020] [8086:1137] (prog-if 40 [USB4 Host Interface])
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next reply other threads:[~2021-09-01 13:44 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 13:44 bugzilla-daemon [this message]
2021-09-01 13:45 ` [Bug 214259] Discrete Thunderbold Controller 8086:1137 throws DMAR and XHCI errors and is only partially functional bugzilla-daemon
2021-09-01 13:45 ` bugzilla-daemon
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