[Bug 52441] New: WARNING: at drivers/gpu/drm/i915/intel_display.c:3871

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=52441

           Summary: WARNING: at drivers/gpu/drm/i915/intel_display.c:3871
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.8.0-rc2
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
        AssignedTo: intel-gfx-bugs at lists.freedesktop.org
        ReportedBy: rkmahefa at gmail.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No


Created an attachment (id=90631)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90631)
dmesg

I constantly had the following WARNING from dmesg even if X.Org seems to work
well :


[ 3197.969647] WARNING: at drivers/gpu/drm/i915/intel_display.c:3871
intel_modeset_check_state+0x58a/0x620()
[ 3197.969658] Hardware name: Inspiron 1525                   
[ 3197.969662] Modules linked in: fuse r852 sm_common b43 bcma nand r592
iTCO_wdt iTCO_vendor_support dell_wmi lpc_ich mfd_core nand_ecc memstick
nand_ids mtd ssb serio_raw coretemp joydev wmi dell_laptop dcdbas firewire_ohci
firewire_core crc_itu_t sdhci_pci sdhci mmc_core
[ 3197.969700] Pid: 3725, comm: Xorg Tainted: G        W   
3.8.0-rc2-rak-060113+ #2
[ 3197.969703] Call Trace:
[ 3197.969709]  [<c10337cd>] warn_slowpath_common+0x6d/0xa0
[ 3197.969716]  [<c133cbea>] ? intel_modeset_check_state+0x58a/0x620
[ 3197.969722]  [<c133cbea>] ? intel_modeset_check_state+0x58a/0x620
[ 3197.969728]  [<c103381d>] warn_slowpath_null+0x1d/0x20
[ 3197.969734]  [<c133cbea>] intel_modeset_check_state+0x58a/0x620
[ 3197.969741]  [<c133d430>] intel_set_mode+0x750/0x9a0
[ 3197.969752]  [<c133dfd4>] intel_release_load_detect_pipe+0xd4/0xf0
[ 3197.969759]  [<c1358c60>] intel_tv_detect+0x2e0/0x4a0
[ 3197.969768]  [<c12f70a8>]
drm_helper_probe_single_connector_modes+0x278/0x330
[ 3197.969775]  [<c1308943>] drm_mode_getconnector+0x303/0x350
[ 3197.969781]  [<c1308640>] ? drm_mode_getcrtc+0xd0/0xd0
[ 3197.969787]  [<c12fbd02>] drm_ioctl+0x3e2/0x460
[ 3197.969793]  [<c1308640>] ? drm_mode_getcrtc+0xd0/0xd0
[ 3197.969800]  [<c110102f>] ? kmem_cache_free+0xdf/0x100
[ 3197.969805]  [<c1117b43>] ? __d_free+0x33/0x50
[ 3197.969810]  [<c1117b43>] ? __d_free+0x33/0x50
[ 3197.969816]  [<c1117b43>] ? __d_free+0x33/0x50
[ 3197.969821]  [<c1117b43>] ? __d_free+0x33/0x50
[ 3197.969827]  [<c12fb920>] ? drm_copy_field+0x80/0x80
[ 3197.969832]  [<c1115425>] do_vfs_ioctl+0x75/0x590
[ 3197.969839]  [<c1213ca5>] ? inode_has_perm.isra.34.constprop.65+0x35/0x40
[ 3197.969845]  [<c1214f38>] ? file_has_perm+0x98/0xb0
[ 3197.969852]  [<c1215343>] ? selinux_file_ioctl+0x43/0xe0
[ 3197.969858]  [<c11159a3>] sys_ioctl+0x63/0x70
[ 3197.969863]  [<c16d97fa>] sysenter_do_call+0x12/0x22
[ 3197.969868] ---[ end trace c23fc060432242a8 ]---


# lspci -vv -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (primary) (rev 0c) (prog-if 00 [VGA controller])
    Subsystem: Dell Device 022f
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 43
    Region 0: Memory at fea00000 (64-bit, non-prefetchable) [size=1M]
    Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
    Region 4: I/O ports at eff8 [size=8]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: <access denied>
    Kernel driver in use: i915


Please find attached the full dmesg.

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