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

[bugzilla-daemon at freedesktop.org]

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

          Priority: medium
            Bug ID: 74002
          Assignee: nouveau at lists.freedesktop.org
           Summary: [un]docking Lenovo W530 results in interrupt storm
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jcollins at asgardsrealm.net
          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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