* [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
@ 2022-09-06 16:43 bugzilla-daemon
2022-09-06 16:43 ` [Bug 216455] " bugzilla-daemon
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From: bugzilla-daemon @ 2022-09-06 16:43 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
Bug ID: 216455
Summary: PCI AER error caused by LTR enablement on amdgpu with
LTR disabled on video card PCIe bridge
Product: Drivers
Version: 2.5
Kernel Version: 5.19.6
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: wielkiegie@gmail.com
Regression: No
Created attachment 301753
--> https://bugzilla.kernel.org/attachment.cgi?id=301753&action=edit
dmesg with pci=earlydump (v5.19.5 + ltr debug patch)
Split off bug 216373 as this is a different issue than what it was initially
about.
To quote Bjorn:
> The issue you're seeing is an Unsupported Request error logged by a Switch
> Downstream Port when it received an LTR message sent by 44:00.0 when the
> Switch has LTR disabled:
>
> pcieport 0000:43:00.0: device [1022:1471] error
> status/mask=00100000/00000000
> pcieport 0000:43:00.0: [20] UnsupReq (First)
> pcieport 0000:43:00.0: AER: TLP Header: 34000000 44000010 00000000
> 84288428
The errors themselves can be masked by providing pci=noaer to the kernel.
The amdgpu.aspm=0 kernel option makes this issue disappear.
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
@ 2022-09-06 16:43 ` bugzilla-daemon
2022-09-06 16:44 ` bugzilla-daemon
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7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2022-09-06 16:43 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #1 from Gustaw Smolarczyk (wielkiegie@gmail.com) ---
Created attachment 301754
--> https://bugzilla.kernel.org/attachment.cgi?id=301754&action=edit
lspci -vvnn on vega10 system
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
2022-09-06 16:43 ` [Bug 216455] " bugzilla-daemon
@ 2022-09-06 16:44 ` bugzilla-daemon
2022-09-07 12:45 ` bugzilla-daemon
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2022-09-06 16:44 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #2 from Gustaw Smolarczyk (wielkiegie@gmail.com) ---
Hardware:
CPU: Ryzen Threadripper 1950X
MB: Asrock X399 Taichi
GPU: Radeon Vega 64 [1002:687f]
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
2022-09-06 16:43 ` [Bug 216455] " bugzilla-daemon
2022-09-06 16:44 ` bugzilla-daemon
@ 2022-09-07 12:45 ` bugzilla-daemon
2022-09-07 16:09 ` bugzilla-daemon
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From: bugzilla-daemon @ 2022-09-07 12:45 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #3 from Lijo Lazar (lijo.lazar@gmail.com) ---
Created attachment 301760
--> https://bugzilla.kernel.org/attachment.cgi?id=301760&action=edit
LTR Fix
Does the attached patch help?
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
` (2 preceding siblings ...)
2022-09-07 12:45 ` bugzilla-daemon
@ 2022-09-07 16:09 ` bugzilla-daemon
2022-09-07 16:13 ` bugzilla-daemon
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From: bugzilla-daemon @ 2022-09-07 16:09 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #4 from Gustaw Smolarczyk (wielkiegie@gmail.com) ---
Yes, it does. LTR+ is no longer being enabled with this patch.
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
` (3 preceding siblings ...)
2022-09-07 16:09 ` bugzilla-daemon
@ 2022-09-07 16:13 ` bugzilla-daemon
2022-09-08 3:22 ` bugzilla-daemon
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From: bugzilla-daemon @ 2022-09-07 16:13 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
Alex Deucher (alexdeucher@gmail.com) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |alexdeucher@gmail.com
--- Comment #5 from Alex Deucher (alexdeucher@gmail.com) ---
(In reply to Lijo Lazar from comment #3)
> Created attachment 301760 [details]
> LTR Fix
>
> Does the attached patch help?
The ASPM code in vi.c and cik.c and si.c should be similarly protected.
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
` (4 preceding siblings ...)
2022-09-07 16:13 ` bugzilla-daemon
@ 2022-09-08 3:22 ` bugzilla-daemon
2022-09-08 3:26 ` bugzilla-daemon
2022-09-13 15:00 ` bugzilla-daemon
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2022-09-08 3:22 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #6 from Lijo Lazar (lijo.lazar@gmail.com) ---
(In reply to Alex Deucher from comment #5)
> (In reply to Lijo Lazar from comment #3)
> > Created attachment 301760 [details]
> > LTR Fix
> >
> > Does the attached patch help?
>
> The ASPM code in vi.c and cik.c and si.c should be similarly protected.
Just checked. Actually, LTR settings are not changed in them.
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
` (5 preceding siblings ...)
2022-09-08 3:22 ` bugzilla-daemon
@ 2022-09-08 3:26 ` bugzilla-daemon
2022-09-13 15:00 ` bugzilla-daemon
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2022-09-08 3:26 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #7 from Alex Deucher (alexdeucher@gmail.com) ---
(In reply to Lijo Lazar from comment #6)
> (In reply to Alex Deucher from comment #5)
> > (In reply to Lijo Lazar from comment #3)
> > > Created attachment 301760 [details]
> > > LTR Fix
> > >
> > > Does the attached patch help?
> >
> > The ASPM code in vi.c and cik.c and si.c should be similarly protected.
>
> Just checked. Actually, LTR settings are not changed in them.
Yes, but they do setup ASPM which should be protected with CONFIG_PCIEASPM?
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* [Bug 216455] PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge
2022-09-06 16:43 [Bug 216455] New: PCI AER error caused by LTR enablement on amdgpu with LTR disabled on video card PCIe bridge bugzilla-daemon
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2022-09-08 3:26 ` bugzilla-daemon
@ 2022-09-13 15:00 ` bugzilla-daemon
7 siblings, 0 replies; 9+ messages in thread
From: bugzilla-daemon @ 2022-09-13 15:00 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=216455
--- Comment #8 from Alex Deucher (alexdeucher@gmail.com) ---
Patch:
https://patchwork.freedesktop.org/patch/501912/
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