[Bug 89305] WARNING: CPU: 0 PID: 3200 at drivers/gpu/drm/i915/i915_gem.c:4285 with Linux v3.19-8975-g3d883483dc0a

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89305

alex_y_xu at yahoo.ca changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alex_y_xu at yahoo.ca

--- Comment #1 from alex_y_xu at yahoo.ca ---
Reproducible with 023a6007a08d342b64895a7342e426d12d9627dd (4.0-rc1+):

-----

WARNING: CPU: 0 PID: 260 at drivers/gpu/drm/i915/i915_gem.c:4284
i915_gem_object_unpin_fence+0x75/0xa0()
WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0)
Modules linked in: af_packet uvcvideo ath3k videobuf2_vmalloc btusb
videobuf2_memops videobuf2_core bluetooth v4l2_common videodev rtsx_usb_sdmmc
mmc_core rtsx_usb mfd_core ath9k ath9k_common ath9k_hw ath firmware_class
mac80211 x86_pkg_temp_thermal kvm_intel cfg80211   kvm ehci_pci xhci_pci
xhci_hcd ehci_hcd usbcore rfkill usb_common
CPU: 0 PID: 260 Comm: X Not tainted 4.0.0-rc1+ #230
Hardware name: Acer Aspire S3-391/Hummingbird2, BIOS V1.29 07/03/2013
 0000000000000000 ffffffff817699b8 ffffffff81537da8 ffff880147e0f8c8
 ffffffff81041f5c ffff8800001d0000 ffff880000121880 ffffffff81681740
 ffff88009d18bf00 ffff880087321840 ffffffff81041fd5 ffffffff81769b08
Call Trace:
 [<ffffffff81537da8>] ? dump_stack+0x40/0x50
 [<ffffffff81041f5c>] ? warn_slowpath_common+0x7c/0xb0
 [<ffffffff81041fd5>] ? warn_slowpath_fmt+0x45/0x50
 [<ffffffff8132fe35>] ? i915_gem_object_unpin_fence+0x75/0xa0
 [<ffffffff813685b8>] ? intel_unpin_fb_obj+0x18/0x50
 [<ffffffff81374237>] ? intel_cleanup_plane_fb+0x37/0x80
 [<ffffffff812dbab2>] ? drm_plane_helper_commit+0x1c2/0x2b0
 [<ffffffff81373d41>] ? intel_crtc_set_config+0xd31/0xfc0
 [<ffffffff812f59af>] ? drm_mode_set_config_internal+0x5f/0x100
 [<ffffffff812e3929>] ? restore_fbdev_mode+0xb9/0xe0
 [<ffffffff812e57db>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1b/0x60
 [<ffffffff812e583d>] ? drm_fb_helper_set_par+0x1d/0x40
 [<ffffffff813820b1>] ? intel_fbdev_set_par+0x11/0x60
 [<ffffffff810765bf>] ? __wake_up+0x2f/0x50
 [<ffffffff81274bcc>] ? fb_set_var+0x16c/0x3a0
 [<ffffffff811e5219>] ? jbd2_journal_stop+0x199/0x380
 [<ffffffff81159b8a>] ? inode_to_bdi+0x1a/0x60
 [<ffffffff810f104c>] ? balance_dirty_pages_ratelimited+0x1c/0xa90
 [<ffffffff8126f3e5>] ? fbcon_blank+0x225/0x2e0
 [<ffffffff81001856>] ? __switch_to+0x436/0x5c0
 [<ffffffff812c8c02>] ? do_unblank_screen+0xb2/0x1e0
 [<ffffffff812bf23f>] ? complete_change_console+0x4f/0xd0
 [<ffffffff812c0366>] ? vt_ioctl+0x10a6/0x1330
 [<ffffffff8110eae9>] ? do_wp_page+0x359/0x840
 [<ffffffff812eb175>] ? drm_ioctl+0x85/0x5a0
 [<ffffffff812b3d9e>] ? tty_ioctl+0x3de/0xc20
 [<ffffffff81145bd8>] ? do_vfs_ioctl+0x2e8/0x4f0
 [<ffffffff81034c93>] ? __do_page_fault+0x123/0x3c0
 [<ffffffff81145e16>] ? SyS_ioctl+0x36/0x80
 [<ffffffff8153f08f>] ? page_fault+0x1f/0x30
 [<ffffffff8153d692>] ? system_call_fastpath+0x12/0x17
---[ end trace 2f8f33a70f93b3eb ]---

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