[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

            Bug ID: 105308
           Summary: X log ballooning in size with "drmmode_wait_vblank
                    failed for scanout update" and "get vblank counter
                    failed"
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: rah@settrans.net

Created attachment 137717
  --> https://bugs.freedesktop.org/attachment.cgi?id=137717&action=edit
First 3900 lines of Xorg log

Hi,

My X log is on occassion filling up my hard disk, reaching a size of 18G with
mostly repeats of two lines.  The X server is working and running fine; I'm
typing this on it now.  The first indication that there is a problem is seeing
"No space left on device".  It looks like the woes begin with this line:

[   668.860] (WW) AMDGPU(0): flip queue failed in amdgpu_scanout_flip: Invalid
argument, TearFree inactive until next modeset

The kernel also reported this although I've no idea when in relation to other
events:

[57903.995504] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
amdgpu_cs_list_validate(validated) failed.
[57903.995539] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to process the
buffer list -22!
[58014.990950] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
amdgpu_cs_list_validate(validated) failed.
[58014.990998] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to process the
buffer list -22!


rah@lotus:~/store-f$ ls -lh Xorg.0.log 
-rw-r--r-- 1 rah rah 18G Mar  1 09:52 Xorg.0.log
rah@lotus:~/store-f$ grep "drmmode_wait_vblank failed for scanout update"
Xorg.0.log | head -n 1
[   668.860] (WW) AMDGPU(0): drmmode_wait_vblank failed for scanout update:
Invalid argument
rah@lotus:~/store-f$ grep "get vblank counter failed" Xorg.0.log | head -n 1
[ 10749.146] (WW) AMDGPU(0): get vblank counter failed: Invalid argument
rah@lotus:~/store-f$ wc -l Xorg.0.log 
203212490 Xorg.0.log
rah@lotus:~/store-f$ egrep -vc "(drmmode_wait_vblank failed for scanout
update|get vblank counter failed)" Xorg.0.log 
1509
rah@lotus:~/store-f$ grep -c "drmmode_wait_vblank failed for scanout update"
Xorg.0.log 
200689290
rah@lotus:~/store-f$ grep -c "get vblank counter failed" Xorg.0.log 
2521692

I'll attach the first 3900 lines of the Xorg log and the kernel log.

Thanks,

Bob

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #1 from Bob Ham <rah@settrans.net> ---
Created attachment 137718
  --> https://bugs.freedesktop.org/attachment.cgi?id=137718&action=edit
Kernel log

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Bob Ham from comment #0)
> 
> [   668.860] (WW) AMDGPU(0): flip queue failed in amdgpu_scanout_flip:
> Invalid argument, TearFree inactive until next modeset

Did anything in particular happen, or did you do anything in particular, around
this time (about 11 minutes after system boot)?


> The kernel also reported this although I've no idea when in relation to
> other events:
> 
> [57903.995504] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
> amdgpu_cs_list_validate(validated) failed.
> [57903.995539] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to process the
> buffer list -22!

The timestamps should be comparable, so this happened much later and is
probably not directly related. Looks like the kernel ran out of memory or some
other resource while processing GPU commands.


Please attach the output of

 xrandr --verbose

while the problem is occurring.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #3 from Bob Ham <rah@settrans.net> ---
Created attachment 137719
  --> https://bugs.freedesktop.org/attachment.cgi?id=137719&action=edit
Output of xrandr --verbose

(In reply to Michel Dänzer from comment #2)
> (In reply to Bob Ham from comment #0)
> > 
> > [   668.860] (WW) AMDGPU(0): flip queue failed in amdgpu_scanout_flip:
> > Invalid argument, TearFree inactive until next modeset
> 
> Did anything in particular happen, or did you do anything in particular,
> around this time (about 11 minutes after system boot)?

Not that I recall, no.  FYI, current uptime is 2 days, 17:25.


> Please attach the output of
> 
>  xrandr --verbose
> 
> while the problem is occurring.

I'll attach the output as requested.  It's from the same X session but I ran
"truncate /var/log/Xorg.0.log" and since then the file has been at 0 size so I
can only assume the problem is still occurring.

Thanks,

Bob

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #4 from Michel Dänzer <michel@daenzer.net> ---
While the problem is occurring, and the screen contents are being updated at
least once per second, please run the following as root:

 echo 255 >/sys/module/drm/parameters/debug"; sleep 1; echo 0
>/sys/module/drm/parameters/debug

and attach the resulting dmesg output.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #5 from Bob Ham <rah@settrans.net> ---
Created attachment 137723
  --> https://bugs.freedesktop.org/attachment.cgi?id=137723&action=edit
Kernel output while setting /sys/module/drm/parameters/debug to 255

This was done while playing video on the display.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #137723|text/x-log                  |text/plain
          mime type|                            |

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
There's nothing in there that would correspond to the Xorg log messages. Please
make sure the problem is actually occurring when you capture the dmesg
debugging output.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #7 from Bob Ham <rah@settrans.net> ---
(In reply to Michel Dänzer from comment #6)
> Please make sure the problem is actually occurring when you capture the
> dmesg debugging output.

I've discovered that the problem occurs when the monitor is switched off.  With
just the monitor off, the "get vblank counter failed: Invalid argument" error
appears.  With the monitor off while playing a video, both the aforementioned
error and "drmmode_wait_vblank failed for scanout update: Invalid argument"
appears.  I'll attach two kernel logs as instructed, one for each condition.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

Bob Ham <rah@settrans.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #137723|0                           |1
        is obsolete|                            |

--- Comment #8 from Bob Ham <rah@settrans.net> ---
Created attachment 137774
  --> https://bugs.freedesktop.org/attachment.cgi?id=137774&action=edit
Kernel output while setting /sys/module/drm/parameters/debug to 255 with
monitor off

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #9 from Bob Ham <rah@settrans.net> ---
Created attachment 137775
  --> https://bugs.freedesktop.org/attachment.cgi?id=137775&action=edit
Kernel output while setting /sys/module/drm/parameters/debug to 255 with
monitor off while playing video

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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[-- Attachment #1.1: Type: text/plain, Size: 658 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=105308

Bob Ham <rah@settrans.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #137719|0                           |1
        is obsolete|                            |

--- Comment #10 from Bob Ham <rah@settrans.net> ---
Created attachment 137776
  --> https://bugs.freedesktop.org/attachment.cgi?id=137776&action=edit
Output of xrandr --verbose

Output of xrandr --verbose while the error is really occurring

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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[-- Attachment #1.1: Type: text/plain, Size: 462 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #11 from Bob Ham <rah@settrans.net> ---
Created attachment 137777
  --> https://bugs.freedesktop.org/attachment.cgi?id=137777&action=edit
First 1000 lines of /var/log/Xorg.0.log (2018-03-04)

Here is an updated version of the Xorg.0.log.  The "flip queue failed in
amdgpu_scanout_flip" error is present again.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #12 from Michel Dänzer <michel@daenzer.net> ---
This might work better if you enable DC with

 amdgpu.dc=1

on the kernel command line.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #13 from Michel Dänzer <michel@daenzer.net> ---
https://patchwork.freedesktop.org/patch/209464/ fixes this for me with DC
disabled.

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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https://bugs.freedesktop.org/show_bug.cgi?id=105308

--- Comment #14 from Mariusz Mazur <mariusz.g.mazur@gmail.com> ---
So, I'm not 100% sure yet, I need time to rebuild 4.14.28 with Michel's patch
and run it for a bit, but at this point I'm about 90% certain that a patch in
4.14.29 introduces a regression, as described in bug 106529. And from reading
the changelog and looking at the code, it does seem to me that this patch is
the most likely culprit.

Short version of what's wrong: on a multi-monitor setup, if the primary display
is on DP and this code toggles it off/on, the window manager doesn't take it
well and you end up with windows all over the place. 

(I don't know if this is the same codepath as is used with amdgpu.dc=1 on more
recent kernels, though I do now the same bug occurs on 4.16+ with dc=1.)

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[Bug 105308] X log ballooning in size with "drmmode_wait_vblank failed for scanout update" and "get vblank counter failed"

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Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #15 from Michel Dänzer <michel@daenzer.net> ---
Resolving this report, as it should be fixed or at least much better with the
kernel change referenced in comment 13.

Mariusz, please keep the discussion about your issue on bug 106529, or maybe
file a new report for the non-DC case.

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