* Re: [Bug 112211] New: ATI Radeon Graphics not rendering correctly
[not found] <bug-112211-27@https.bugzilla.kernel.org/>
@ 2016-02-09 20:20 ` Andrew Morton
2016-02-09 20:36 ` Dan Williams
0 siblings, 1 reply; 3+ messages in thread
From: Andrew Morton @ 2016-02-09 20:20 UTC (permalink / raw)
To: smf.linux; +Cc: bugzilla-daemon, Dan Williams, linux-mm
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
On Tue, 09 Feb 2016 08:41:39 +0000 bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=112211
>
> Bug ID: 112211
> Summary: ATI Radeon Graphics not rendering correctly
> Product: Memory Management
> Version: 2.5
> Kernel Version: Linux 4.5-rc3
> Hardware: IA-32
> OS: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Page Allocator
> Assignee: akpm@linux-foundation.org
> Reporter: smf.linux@ntlworld.com
> Regression: No
>
> On testing linux 4.5-rc( 1,2 and 3) I have found that my display is not
> rendered correctly on starting the X server. My screen is mainly black with
> portions of the desktop appearing from time to time. I initially raised this
> with the DRM/Radeon team:
>
> https://bugs.freedesktop.org/show_bug.cgi?id=93998
>
> On investigation a bisect identified the following commit as the source of my
> problem:
>
> 01c8f1c44b83a0825b573e7c723b033cece37b86 is the first bad commit
> commit 01c8f1c44b83a0825b573e7c723b033cece37b86
> Author: Dan Williams <dan.j.williams@intel.com>
> Date: Fri Jan 15 16:56:40 2016 -0800
>
> mm, dax, gpu: convert vm_insert_mixed to pfn_t
>
> Convert the raw unsigned long 'pfn' argument to pfn_t for the purpose of
> evaluating the PFN_MAP and PFN_DEV flags. When both are set it triggers
> _PAGE_DEVMAP to be set in the resulting pte.
>
> There are no functional changes to the gpu drivers as a result of this
> conversion.
>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
> Cc: Dave Hansen <dave@sr71.net>
> Cc: David Airlie <airlied@linux.ie>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
>
> The problem is present on two AMD/ATI systems I have tried but is absent from
> my Intel based laptop. All my systems are 32 bit LFS builds.
>
> I did try to contact Dan Williams but I am not sure that my e-mail got through,
> can anyone suggest a way forward please ?
>
Does your kernel include
commit 03fc2da63b9a33dce784a2075c7e068bb97cbf69
Author: Dan Williams <dan.j.williams@intel.com>
Date: Tue Jan 26 09:48:05 2016 -0800
mm: fix pfn_t to page conversion in vm_insert_mixed
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Bug 112211] New: ATI Radeon Graphics not rendering correctly
2016-02-09 20:20 ` [Bug 112211] New: ATI Radeon Graphics not rendering correctly Andrew Morton
@ 2016-02-09 20:36 ` Dan Williams
2016-02-11 2:21 ` Dan Williams
0 siblings, 1 reply; 3+ messages in thread
From: Dan Williams @ 2016-02-09 20:36 UTC (permalink / raw)
To: Andrew Morton; +Cc: smf.linux, bugzilla-daemon, Linux MM
On Tue, Feb 9, 2016 at 12:20 PM, Andrew Morton
<akpm@linux-foundation.org> wrote:
>
> (switched to email. Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> On Tue, 09 Feb 2016 08:41:39 +0000 bugzilla-daemon@bugzilla.kernel.org wrote:
>
>> https://bugzilla.kernel.org/show_bug.cgi?id=112211
>>
>> Bug ID: 112211
>> Summary: ATI Radeon Graphics not rendering correctly
>> Product: Memory Management
>> Version: 2.5
>> Kernel Version: Linux 4.5-rc3
>> Hardware: IA-32
>> OS: Linux
>> Tree: Mainline
>> Status: NEW
>> Severity: normal
>> Priority: P1
>> Component: Page Allocator
>> Assignee: akpm@linux-foundation.org
>> Reporter: smf.linux@ntlworld.com
>> Regression: No
>>
>> On testing linux 4.5-rc( 1,2 and 3) I have found that my display is not
>> rendered correctly on starting the X server. My screen is mainly black with
>> portions of the desktop appearing from time to time. I initially raised this
>> with the DRM/Radeon team:
>>
>> https://bugs.freedesktop.org/show_bug.cgi?id=93998
>>
>> On investigation a bisect identified the following commit as the source of my
>> problem:
>>
>> 01c8f1c44b83a0825b573e7c723b033cece37b86 is the first bad commit
>> commit 01c8f1c44b83a0825b573e7c723b033cece37b86
>> Author: Dan Williams <dan.j.williams@intel.com>
>> Date: Fri Jan 15 16:56:40 2016 -0800
>>
>> mm, dax, gpu: convert vm_insert_mixed to pfn_t
>>
>> Convert the raw unsigned long 'pfn' argument to pfn_t for the purpose of
>> evaluating the PFN_MAP and PFN_DEV flags. When both are set it triggers
>> _PAGE_DEVMAP to be set in the resulting pte.
>>
>> There are no functional changes to the gpu drivers as a result of this
>> conversion.
>>
>> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
>> Cc: Dave Hansen <dave@sr71.net>
>> Cc: David Airlie <airlied@linux.ie>
>> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
>>
>> The problem is present on two AMD/ATI systems I have tried but is absent from
>> my Intel based laptop. All my systems are 32 bit LFS builds.
>>
>> I did try to contact Dan Williams but I am not sure that my e-mail got through,
>> can anyone suggest a way forward please ?
>>
>
> Does your kernel include
>
> commit 03fc2da63b9a33dce784a2075c7e068bb97cbf69
> Author: Dan Williams <dan.j.williams@intel.com>
> Date: Tue Jan 26 09:48:05 2016 -0800
>
> mm: fix pfn_t to page conversion in vm_insert_mixed
>
Hi Stuart, from the bugzilla activity it looks like you are already
running with this fix. Can you append you kernel config file to the
bugzilla. There's something particular about 32-bit builds I'm
missing...
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Bug 112211] New: ATI Radeon Graphics not rendering correctly
2016-02-09 20:36 ` Dan Williams
@ 2016-02-11 2:21 ` Dan Williams
0 siblings, 0 replies; 3+ messages in thread
From: Dan Williams @ 2016-02-11 2:21 UTC (permalink / raw)
To: Andrew Morton; +Cc: smf.linux, bugzilla-daemon, Linux MM
On Tue, Feb 9, 2016 at 12:36 PM, Dan Williams <dan.j.williams@intel.com> wrote:
> On Tue, Feb 9, 2016 at 12:20 PM, Andrew Morton
> <akpm@linux-foundation.org> wrote:
>>
>> (switched to email. Please respond via emailed reply-to-all, not via the
>> bugzilla web interface).
>>
>> On Tue, 09 Feb 2016 08:41:39 +0000 bugzilla-daemon@bugzilla.kernel.org wrote:
>>
>>> https://bugzilla.kernel.org/show_bug.cgi?id=112211
>>>
>>> Bug ID: 112211
>>> Summary: ATI Radeon Graphics not rendering correctly
>>> Product: Memory Management
>>> Version: 2.5
>>> Kernel Version: Linux 4.5-rc3
>>> Hardware: IA-32
>>> OS: Linux
>>> Tree: Mainline
>>> Status: NEW
>>> Severity: normal
>>> Priority: P1
>>> Component: Page Allocator
>>> Assignee: akpm@linux-foundation.org
>>> Reporter: smf.linux@ntlworld.com
>>> Regression: No
>>>
>>> On testing linux 4.5-rc( 1,2 and 3) I have found that my display is not
>>> rendered correctly on starting the X server. My screen is mainly black with
>>> portions of the desktop appearing from time to time. I initially raised this
>>> with the DRM/Radeon team:
>>>
>>> https://bugs.freedesktop.org/show_bug.cgi?id=93998
>>>
>>> On investigation a bisect identified the following commit as the source of my
>>> problem:
>>>
>>> 01c8f1c44b83a0825b573e7c723b033cece37b86 is the first bad commit
>>> commit 01c8f1c44b83a0825b573e7c723b033cece37b86
>>> Author: Dan Williams <dan.j.williams@intel.com>
>>> Date: Fri Jan 15 16:56:40 2016 -0800
>>>
>>> mm, dax, gpu: convert vm_insert_mixed to pfn_t
>>>
>>> Convert the raw unsigned long 'pfn' argument to pfn_t for the purpose of
>>> evaluating the PFN_MAP and PFN_DEV flags. When both are set it triggers
>>> _PAGE_DEVMAP to be set in the resulting pte.
>>>
>>> There are no functional changes to the gpu drivers as a result of this
>>> conversion.
>>>
>>> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
>>> Cc: Dave Hansen <dave@sr71.net>
>>> Cc: David Airlie <airlied@linux.ie>
>>> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>>> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
>>>
>>> The problem is present on two AMD/ATI systems I have tried but is absent from
>>> my Intel based laptop. All my systems are 32 bit LFS builds.
>>>
>>> I did try to contact Dan Williams but I am not sure that my e-mail got through,
>>> can anyone suggest a way forward please ?
>>>
>>
>> Does your kernel include
>>
>> commit 03fc2da63b9a33dce784a2075c7e068bb97cbf69
>> Author: Dan Williams <dan.j.williams@intel.com>
>> Date: Tue Jan 26 09:48:05 2016 -0800
>>
>> mm: fix pfn_t to page conversion in vm_insert_mixed
>>
>
> Hi Stuart, from the bugzilla activity it looks like you are already
> running with this fix. Can you append you kernel config file to the
> bugzilla. There's something particular about 32-bit builds I'm
> missing...
Thanks for the config file. I was able to reproduce this in a VM that
uses the DRM layer. The fix that works for me is available here in
patchwork [1]. Let me know if it works in your environment.
[1]: https://patchwork.kernel.org/patch/8276171/
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-02-11 2:21 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <bug-112211-27@https.bugzilla.kernel.org/>
2016-02-09 20:20 ` [Bug 112211] New: ATI Radeon Graphics not rendering correctly Andrew Morton
2016-02-09 20:36 ` Dan Williams
2016-02-11 2:21 ` Dan Williams
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).