[Bug 66610] New: [PNV]igt/module_reload fails and causes many cases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66610

          Priority: medium
            Bug ID: 66610
                CC: xunx.fang at intel.com, yangweix.shui at intel.com
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [PNV]igt/module_reload fails and causes many cases
                    fail
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

System Environment:
--------------------------
Arch:           i386
Platform:       pineview
Kernel:    (drm-intel-fixes) 446f8d81ca2d9cefb614e87f2fabcc996a9e4e7e

Bug detailed description:
-------------------------
It fails on pineview with drm-intel-fixes kernel and drm-intel-next-queued
kernel. I can't find a good commit. It also has this issue on (drm-intel-fixes)
8abbbaf6adb46157b6bd416f7616b555cc6a332f.
Run ./module_reload then run following cases, they also fail.
igt/gem_ctx_bad_destroy    
igt/gem_hangcheck_forcewake    
igt/gem_largeobject    
igt/gem_mmap_offset_exhaustion    
igt/gem_ring_sync_loop    
igt/gem_storedw_loop_bsd    
igt/gem_storedw_loop_render    
igt/gem_tiled_pread    
igt/gen3_mixed_blits    
igt/gen3_render_linear_blits    
igt/module_reload    
igt/prime_self_import/with_two_bos

output:
module successfully unloaded
FATAL: Could not load
/lib/modules/3.10.0-rc7_drm-intel-fixes_446f8d_20130704_+/modules.dep: No such
file or directory
./module_reload: line 39: /sys/class/vtconsole/vtcon1/bind: No such file or
directory
gem_create:487 failed, ret=-1, errno=9
./module_reload: line 42:  3759 Aborted                 (core dumped)
$SOURCE_DIR/gem_exec_nop > /dev/null


dmesg:
[  127.169426] Console: switching to colour VGA+ 80x25
[  127.175588] [drm:intel_crtc_cursor_set], cursor off
[  127.175597] [drm:intel_crtc_set_config], [CRTC:3] [NOFB]
[  127.175607] [drm:intel_modeset_stage_output_state], [CONNECTOR:5:LVDS-1] to
[CRTC:4]
[  127.175613] [drm:intel_crtc_cursor_set], cursor off
[  127.175617] [drm:intel_crtc_set_config], [CRTC:4] [FB:14] #connectors=1 (x
y) (0 0)
[  127.175625] [drm:intel_modeset_stage_output_state], [CONNECTOR:5:LVDS-1] to
[CRTC:4]
[  127.183992] drm_kms_helper: drm: unregistered panic notifier
[  127.188110] [drm:i915_get_vblank_counter], trying to get vblank count for
disabled pipe A
[  127.188953] [drm:intel_crtc_cursor_set], cursor off
[  127.188966] [drm:intel_crtc_cursor_set], cursor off
[  127.193990] [drm] Module unloaded


Reproduce steps:
----------------
1. ./module_reload

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