https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #27 from David Breese ---
*** Bug 93911 has been marked as a duplicate of this bug. ***
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Michel D�nzer changed:
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CC||dabreese00 at gmail.com
--- Comment
https://bugs.freedesktop.org/show_bug.cgi?id=91268
Michel Dänzer changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #24 from Laurento Frittella ---
I'm trying the attached patch to disable WC on my r6xx and it seems to help
here as well.
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
RV620/M82 [Mobility Radeon HD
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #23 from Kajzer ---
Still working fine with disabled WC, not a single crash since.
Also, I wasn't able to notice any difference with disabled WC, I mean regarding
performance or something.
Disabling WC on RV6xx is definitely a good
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #22 from Michel Dänzer ---
Seeing as both Kajzer and Fedja Beader are using RV6xx GPUs, maybe we could
just disable WC for those for now?
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--- Comment #21 from Fedja Beader ---
(In reply to Kajzer from comment #13)
> If I don't set performance to high then it hangs all the time
It gave me that impression, yes
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Fedja Beader changed:
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CC||fedja.beader at t-2.net
--- Comment #20
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #19 from Michel Dänzer ---
(In reply to Michel Dänzer from comment #18)
> I was hoping that we'd find something to key off a quirk in the dmesg
> output, but since we can't seem to get that, maybe this is the best we can
> do for
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #18 from Michel Dänzer ---
(In reply to Christian König from comment #11)
> Considering how old the hardware is I suggest that we just disable that
> feature for anything older than R7XX.
fglrx was already using write-combined CPU
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #17 from Kajzer ---
(In reply to Alex Deucher from comment #16)
> (In reply to Kajzer from comment #15)
> > (In reply to Alex Deucher from comment #14)
> > > Do you see this bug if you don't enable dpm at all (which is the default)?
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #16 from Alex Deucher ---
(In reply to Kajzer from comment #15)
> (In reply to Alex Deucher from comment #14)
> > Do you see this bug if you don't enable dpm at all (which is the default)?
>
> Ah I get you now... I don't know,
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #15 from Kajzer ---
(In reply to Alex Deucher from comment #14)
> Do you see this bug if you don't enable dpm at all (which is the default)?
Ah I get you now... I don't know, there's no point for me to even be on Linux
without dpm,
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #14 from Alex Deucher ---
(In reply to Kajzer from comment #13)
> If I don't set performance to high then it hangs all the time (not just in
> gaming) and I can provoke it within minutes, regardless of kernel version.
> This bug (CPU
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #13 from Kajzer ---
(In reply to Alex Deucher from comment #12)
> Just to be clear, does this bug only happen when you force dpm on or all the
> time?
If I don't set performance to high then it hangs all the time (not just in
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #12 from Alex Deucher ---
Just to be clear, does this bug only happen when you force dpm on or all the
time?
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Christian König changed:
What|Removed |Added
Attachment #117089|0 |1
is obsolete|
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #10 from Kajzer ---
(In reply to Michel Dänzer from comment #9)
> That's expected. Alex's patch isn't a fix but just to confirm the problem is
> really directly related to write-combined CPU mappings.
Yeah I know, that's what I
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #9 from Michel Dänzer ---
(In reply to Kajzer from comment #8)
> I suspect you need one when hang happens,
No, as I said I'm mostly interested in the initialization messages.
> I'm trying really hard to make it hang with the
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #8 from Kajzer ---
(In reply to Michel Dänzer from comment #6)
> Please attach the output of dmesg, including all the drm/radeon
> initialization messages.
I suspect you need one when hang happens, I'm trying really hard to make it
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #7 from Kajzer ---
Created attachment 117136
--> https://bugs.freedesktop.org/attachment.cgi?id=117136=edit
dmesg output
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--- Comment #6 from Michel Dänzer ---
Please attach the output of dmesg, including all the drm/radeon initialization
messages.
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--- Comment #5 from Kajzer ---
(In reply to Alex Deucher from comment #4)
> Created attachment 117089 [details] [review]
> disable uc/wc
>
> The attached patch will disable uncached mappings.
Thanks Alex !
I've patched kernel 3.18.8 and I'm
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #4 from Alex Deucher ---
Created attachment 117089
--> https://bugs.freedesktop.org/attachment.cgi?id=117089=edit
disable uc/wc
The attached patch will disable uncached mappings.
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https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #3 from Kajzer ---
Trouble is that kernel won't compile now.
CC [M] drivers/gpu/drm/radeon/radeon_object.o
drivers/gpu/drm/radeon/radeon_object.c: In function
âradeon_ttm_placement_from_domainâ:
https://bugs.freedesktop.org/show_bug.cgi?id=91268
--- Comment #2 from Kajzer ---
I made a patch using git show and I've patched last known good kernel 3.16.7
I guess that's one way to find out is this commit the real culprit or not.
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--- Comment #1 from Kajzer ---
Quote from another thread where this bug initially started :
(In reply to Michel Dänzer from comment #273)
> Please run a kernel built from commit
> 77497f2735ad6e29c55475e15e9790dbfa2c2ef8 (the commit before
>
https://bugs.freedesktop.org/show_bug.cgi?id=91268
Bug ID: 91268
Summary: R6xx freezes with kernel 3.17 and up
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
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