[Bug 74002] New: [un]docking Lenovo W530 results in interrupt storm

[Bug 74002] New: [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

          Priority: medium
            Bug ID: 74002
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: [un]docking Lenovo W530 results in interrupt storm
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 92699
  --> https://bugs.freedesktop.org/attachment.cgi?id=92699&action=edit
vbios

Running a 3.13 kernel, built from upstream git repository (commit
d8ec26d7f8287f5788a494f56e8814210f0e64be).

I'm able to consistently generate an ongoing interrupt storm by [un]docking my
Lenovo W530 when using the nouveau driver.  This problem was first noticed
under a 3.10 kernel and associated nouveau driver.  I then switched to the
above 3.13 kernel for the MSI interrupt support and to see if the problem
persisted.

The attached nouveau.interrupts is the output of read_interrupts, the source
for which is here: http://www.darnok.org/xen/read_interrupts.c.  This file
shows the interrupts generated during 5 second intervals.

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[Bug 74002] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #1 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92700
  --> https://bugs.freedesktop.org/attachment.cgi?id=92700&action=edit
Generated interrupts

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[Bug 74002] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #2 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92701
  --> https://bugs.freedesktop.org/attachment.cgi?id=92701&action=edit
real vbios

vbios of the card captured via:
sudo cat /sys/kernel/debug/dri/0/vbios.rom > vbios.rom

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[Bug 74002] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #3 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92702
  --> https://bugs.freedesktop.org/attachment.cgi?id=92702&action=edit
perf report

Linux perf tool report captured during the interrupt storm

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[Bug 74002] [un]docking Lenovo W530 results in interrupt storm

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #4 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92703
  --> https://bugs.freedesktop.org/attachment.cgi?id=92703&action=edit
dmesg output

Requested kernel log

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[Bug 74002] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #92699|0                           |1
        is obsolete|                            |

--- Comment #5 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Comment on attachment 92699
  --> https://bugs.freedesktop.org/attachment.cgi?id=92699
vbios

Incorrectly labeled upload, sorry.

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[Bug 74002] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #6 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Should also note that I attempted booting with the nouveau.config=NvI2C=1
kernel parameter.  However, with this parameter present, both the VT text and
splash screen were corrupted (appeared interleaved), there was no display from
X (though I could hear the startup sound indicating it had started), and the
system was not reliably connected to the network (couldn't ping or ssh to it).

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[Bug 74002] [NVE7] [un]docking Lenovo W530 results in interrupt storm

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[un]docking Lenovo W530     |[NVE7] [un]docking Lenovo
                   |results in interrupt storm  |W530 results in interrupt
                   |                            |storm

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[Bug 74002] [NVE7] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #7 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92709
  --> https://bugs.freedesktop.org/attachment.cgi?id=92709&action=edit
dmesg output with debugging enabled

Reproduced the storm with a few additional kernel command line options to
increase logging verbosity.

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[Bug 74002] [NVE7] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #8 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
This xrandr output seems very strange, I don't recall seeing resolutions for
disconnected displays before.  Nor, do I recall seeing output like the 6 lines
below DP-3:

jcollins@odin:~$ xrandr
Screen 0: minimum 320 x 200, current 5280 x 1080, maximum 8192 x 8192
LVDS-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm
x 193mm
   1920x1080      60.0*+   60.0     50.0  
   1680x1050      60.0  
   1400x1050      60.0  
   1280x1024      59.9  
   1280x960       59.9  
   1152x864       60.0  
   1024x768       59.9  
   800x600        59.9  
   640x480        59.4  
   720x400        59.6  
   640x400        60.0  
   640x350        59.8  
VGA-1 disconnected 1440x900+3840+0 (normal left inverted right x axis y axis)
0mm x 0mm
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected 1920x1080+1920+0 (normal left inverted right x axis y axis)
0mm x 0mm
DP-3 disconnected (normal left inverted right x axis y axis)
  1920x1080 (0x77)  148.5MHz
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock   67.5KHz
        v: height 1080 start 1084 end 1089 total 1125           clock   60.0Hz
  1440x900 (0x82)  106.5MHz
        h: width  1440 start 1520 end 1672 total 1904 skew    0 clock   55.9KHz
        v: height  900 start  903 end  909 total  934           clock   59.9Hz

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[Bug 74002] [NVE7] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #9 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
It seems that undocking the laptop is not required to trigger the interrupt
storm.  All that is necessary is disconnecting the display connected to DP-3. 
As long as DP-3 is never connected, I can dock and undock the laptop repeatedly
without triggering the storm.  Simply attaching a monitor to that port and
disconnecting it triggers the storm.  Going to try a few other scenarios and
report back.

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[Bug 74002] [NVE7] [un]docking Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #10 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92716
  --> https://bugs.freedesktop.org/attachment.cgi?id=92716&action=edit
Xorg log for normal connections

To further complicate matters, it appears to matter which monitor it is that is
connected to DP-3.  If I change the order of the monitors and and place the
monitor that is normally connected to DP-2 on DP-3 and the one that is normally
connected to DP-3 on DP-2, this problem goes away at least here at home.

Monitor that is normally connected to DP-2:
Manufacturer: DEL  Model: a05c  Serial#: 843992405

Monitor that is normally connected to DP-3:
Manufacturer: GWY  Model: 777  Serial#: 16843009

However, at work the unit is normally connected to three 24" monitors which
require the use of DP-3 and trigger this issue as well.  So, simply changing
the connection order will only work around the issue at one location.

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[Bug 74002] [NVE7] [un]plugging DP-3 on Lenovo W530 results in interrupt storm

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[NVE7] [un]docking Lenovo   |[NVE7] [un]plugging DP-3 on
                   |W530 results in interrupt   |Lenovo W530 results in
                   |storm                       |interrupt storm

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[Bug 74002] [NVE7] [un]plugging DP-3 on Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #11 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Created attachment 92739
  --> https://bugs.freedesktop.org/attachment.cgi?id=92739&action=edit
both sets of displays

I've confirmed I can replicate this problem with the displays at work as well. 
Attaching an Xorg log containing information for both sets of displays.

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[Bug 74002] [NVE7] [un]plugging DP-3 on Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #12 from Jamin Collins <jcollins-u0TlgVUp4POoiH3BShWgcg@public.gmane.org> ---
Any update?

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[Bug 74002] [NVE7] [un]plugging DP-3 on Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #13 from patrick.clara-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ---
Hello Jamin.

I have reported this bug https://bugs.freedesktop.org/show_bug.cgi?id=76732 a
week ago. I though that it may be a small possibility that the two bugs are
correlated.

You wrote you noticed the bug first in 3.10. Did you ever tested 3.8 (in
specific 3.8 rc6) and 3.9? 
Just to understand if the bug appared in 3.10 of if you just noticed it in
3.10.

Thanks

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[Bug 74002] [NVE7] [un]plugging DP-3 on Lenovo W530 results in interrupt storm

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https://bugs.freedesktop.org/show_bug.cgi?id=74002

--- Comment #14 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
There is a substantial DP rework bound for 3.16. Can you give
http://cgit.freedesktop.org/~airlied/linux/log/?h=drm-next a shot?

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[Bug 74002] [NVE7] [un]plugging DP-3 on Lenovo W530 results in interrupt storm

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Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

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

--- Comment #15 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

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