* [Bug 205853] New: amdgpu kernel bug: kernel null pointer dereference
@ 2019-12-14 6:55 bugzilla-daemon
2019-12-14 6:56 ` [Bug 205853] " bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-12-14 6:55 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=205853
Bug ID: 205853
Summary: amdgpu kernel bug: kernel null pointer dereference
Product: Drivers
Version: 2.5
Kernel Version: 5.4.2
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: janpieter.sollie@dommel.be
Regression: No
Created attachment 286277
--> https://bugzilla.kernel.org/attachment.cgi?id=286277&action=edit
dmesg of kernel 5.4.2
possible duplicate of #204181, but as they are talking about X software, and I
don't even have an xorg setup (issue happens at boot, device is only present
for opencl software), I decided to file a new one:
AMDGPU kernel NULL pointer dereference, address: 0000000000000d71
using fiji device
lspci, dmesg and .config attached.
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* [Bug 205853] amdgpu kernel bug: kernel null pointer dereference
2019-12-14 6:55 [Bug 205853] New: amdgpu kernel bug: kernel null pointer dereference bugzilla-daemon
@ 2019-12-14 6:56 ` bugzilla-daemon
2019-12-14 6:58 ` bugzilla-daemon
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-12-14 6:56 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=205853
--- Comment #1 from Janpieter Sollie (janpieter.sollie@dommel.be) ---
Created attachment 286279
--> https://bugzilla.kernel.org/attachment.cgi?id=286279&action=edit
lspci -v output
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* [Bug 205853] amdgpu kernel bug: kernel null pointer dereference
2019-12-14 6:55 [Bug 205853] New: amdgpu kernel bug: kernel null pointer dereference bugzilla-daemon
2019-12-14 6:56 ` [Bug 205853] " bugzilla-daemon
@ 2019-12-14 6:58 ` bugzilla-daemon
2019-12-14 7:52 ` bugzilla-daemon
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-12-14 6:58 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=205853
--- Comment #2 from Janpieter Sollie (janpieter.sollie@dommel.be) ---
Created attachment 286281
--> https://bugzilla.kernel.org/attachment.cgi?id=286281&action=edit
kernel config file
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* [Bug 205853] amdgpu kernel bug: kernel null pointer dereference
2019-12-14 6:55 [Bug 205853] New: amdgpu kernel bug: kernel null pointer dereference bugzilla-daemon
2019-12-14 6:56 ` [Bug 205853] " bugzilla-daemon
2019-12-14 6:58 ` bugzilla-daemon
@ 2019-12-14 7:52 ` bugzilla-daemon
2020-01-02 8:08 ` bugzilla-daemon
2020-01-02 8:08 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-12-14 7:52 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=205853
--- Comment #3 from Janpieter Sollie (janpieter.sollie@dommel.be) ---
the issue seems to be in the DC driver: booting the amdgpu kernel module with
"dc=0" reduces the output to:
========================
[ 7.050414] amdgpu 0000:0a:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR*
IB test failed on uvd (-110).
[ 7.151761] [drm:process_one_work] *ERROR* ib ring test failed (-110).
========================
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* [Bug 205853] amdgpu kernel bug: kernel null pointer dereference
2019-12-14 6:55 [Bug 205853] New: amdgpu kernel bug: kernel null pointer dereference bugzilla-daemon
` (2 preceding siblings ...)
2019-12-14 7:52 ` bugzilla-daemon
@ 2020-01-02 8:08 ` bugzilla-daemon
2020-01-02 8:08 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2020-01-02 8:08 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=205853
--- Comment #4 from Janpieter Sollie (janpieter.sollie@dommel.be) ---
Created attachment 286571
--> https://bugzilla.kernel.org/attachment.cgi?id=286571&action=edit
working .config
this modified .config file allows the DC driver to get things up and running;
however: as the IB ring error still exists, I'll have to look further into
that, but that's another bug
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* [Bug 205853] amdgpu kernel bug: kernel null pointer dereference
2019-12-14 6:55 [Bug 205853] New: amdgpu kernel bug: kernel null pointer dereference bugzilla-daemon
` (3 preceding siblings ...)
2020-01-02 8:08 ` bugzilla-daemon
@ 2020-01-02 8:08 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2020-01-02 8:08 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=205853
Janpieter Sollie (janpieter.sollie@dommel.be) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DOCUMENTED
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