[Bug 84681] New: No network after some S4 suspend/resume cycles

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=84681

            Bug ID: 84681
           Summary: No network after some S4 suspend/resume cycles
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.17-rc4
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jens-bugzilla.kernel.org at spamfreemail.de
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

This is an addendum to Bug #59321 which got fixed.
Same hardware (Haswell step 2, i4570, MSI-7817 B85m mainboard.

Here's the challenge:
Occasionally (about every fifth time) when I do S4 suspend and resume cycle,
after resuming I have no network, meaning the interface is not coming up again. 

This is the dmesg of a SUCCESSFUL resume with networking:

...
[  335.912525] PM: restore of devices complete after 764.543 msecs
[  335.912632] PM: Image restored successfully.
[  335.912644] PM: Basic memory bitmaps freed
[  335.912645] Restarting tasks ... 
[  335.912708] r8169 0000:02:00.0: no hotplug settings from platform
[  335.914229] done.
[  335.914233] video LNXVIDEO:00: Restoring backlight state
[  336.112423] r8169 0000:02:00.0 eth1: link down
[  336.112457] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[  336.112479] r8169 0000:02:00.0 eth1: link down
[  338.889059] r8169 0000:02:00.0 eth1: link up
[  338.889064] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
...

This is the dmesg of a FAILED resume, without networking:

...
[ 1083.025140] PM: restore of devices complete after 764.906 msecs
[ 1083.025263] PM: Image restored successfully.
[ 1083.025275] PM: Basic memory bitmaps freed
[ 1083.025277] Restarting tasks ... 
[ 1083.025350] r8169 0000:02:00.0: no hotplug settings from platform
[ 1083.032115] done.
[ 1083.032120] video LNXVIDEO:00: Restoring backlight state
...

If I do S4 again it usually works again.

What can I do to get this fixed? 
Thank you! :)

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