[Bug 97829] New: [BAT] [SKL Gt4e] gem_exec_suspend at basic-s3 dmesg warning

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97829

            Bug ID: 97829
           Summary: [BAT] [SKL Gt4e] gem_exec_suspend at basic-s3 dmesg
                    warning
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jani.saarinen at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

On fi-skl-6770hq (newly added) gem_exec_suspend at basic-s3 gets dmesg warning.

E.g. for the last incomplete run CI_DRM_1640 (15-Sep-2016) dmesg has following
...
dmesg   
[  380.357615] Suspending console(s) (use no_console_suspend to debug)
[  380.362507] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[  380.365508] sd 0:0:0:0: [sda] Stopping disk
[  380.549425] Broke affinity for irq 123
[  380.564050] Broke affinity for irq 123
[  380.583338] Broke affinity for irq 121
[  380.583341] Broke affinity for irq 123
[  380.602692] Broke affinity for irq 8
[  380.602706] Broke affinity for irq 9
[  380.602718] Broke affinity for irq 120
[  380.602722] Broke affinity for irq 121
[  380.602725] Broke affinity for irq 123
[  380.617164]  cache: parent cpu1 should not be sleeping
[  380.622504]  cache: parent cpu2 should not be sleeping
[  380.627852]  cache: parent cpu3 should not be sleeping
[  380.633436]  cache: parent cpu4 should not be sleeping
[  380.639013]  cache: parent cpu5 should not be sleeping
[  380.644518]  cache: parent cpu6 should not be sleeping
[  380.650026]  cache: parent cpu7 should not be sleeping
[  380.970873] sd 0:0:0:0: [sda] Starting disk
[  381.275808] ata1.00: supports DRM functions and may not be fully accessible
[  381.283883] ata1.00: supports DRM functions and may not be fully accessible
[  382.630079] [drm:intel_dp_link_training_clock_recovery] *ERROR* failed to
enable link training
[  382.906189] [drm:intel_dp_link_training_channel_equalization] *ERROR* failed
to start channel equalization

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