[Bug 67391] [IVB]igt/prime_nv_api cause WARNING: CPU: 6 PID: 4095 at drivers/gpu/drm/i915/i915_gem.c:3977 i915_gem_free_object+0xf3/0x19d [i915]()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67391

--- Comment #3 from yangguang <guang.a.yang at intel.com> ---
(In reply to comment #2)
> Fix merged to dinq:
> 
> commit 48ca155d15d439d5d035a3daf1c56ed1a30afb17
> Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> Date:   Thu Aug 8 09:10:37 2013 +0200
> 
>     drm/i915: unpin backing storage in dmabuf_unmap
>     
>     This fixes a WARN in i915_gem_free_object when the
>     obj->pages_pin_count isn't 0.
>     
>     v2: Add locking to unmap, noticed by Chris Wilson. Note that even
>     though we call unmap with our own dev->struct_mutex held that won't
>     result in an immediate deadlock since we never go through the dma_buf
>     interfaces for our own, reimported buffers. But it's still easy to
>     blow up and anger lockdep, but that's already the case with our ->map
>     implementation. Fixing this for real will involve per dma-buf ww mutex
>     locking by the callers. And lots of fun. So go with the duct-tape
>     approach for now.
>     
>     Cc: Chris Wilson <chris at chris-wilson.co.uk>
>     Reported-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
>     Cc: Maarten Lankhorst <maarten.lankhorst at canonical.com>
>     Tested-by: Armin K. <krejzi at email.com> (v1)
>     Acked-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
>     Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
The Call Trace issue disappears, but after running it shows:
Test requirement not met in function main, file prime_nv_api.c:522:
Test requirement: (intel_fd != -1)
Test requirement not met in function main, file prime_nv_api.c:523:
Test requirement: (intel_fd2 != -1)
DRM_IOCTL_I915_GEM_APERTURE failed: Bad file descriptor
Assuming 131072kB available aperture size.
May lead to reduced performance or incorrect rendering.
get chip id failed: -1 [9]
param: 4, val: 0
Test assertion failure function main, file prime_nv_api.c:527:
Failed assertion: bufmgr
prime_nv_api: drmtest.c:816: igt_fail: Assertion `!test_with_subtests' failed.

So do I need to file a new bug?

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