[Bug 7457] New: Kernel OOPS on rmmod i915

[<bug...@an...>]

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https://bugs.freedesktop.org/show_bug.cgi?id=7457          
     
           Summary: Kernel OOPS on rmmod i915
           Product: DRI
           Version: XOrg CVS
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DRM modules
        AssignedTo: dri...@li...
        ReportedBy: ja...@ry...


10:29:27 [drm] Initialized drm 1.0.1 20051102
10:29:27 ACPI: PCI Interrupt 0000:00:02.0[A] -> Link [LNKA] -> GSI 11 (level,
low) -> IRQ 11
10:29:27 PCI: Setting latency timer of device 0000:00:02.0 to 64
10:29:27 [drm] Initialized i915 1.5.0 20060119 on minor 0:
10:29:27 PCI: Enabling device 0000:00:02.1 (0004 -> 0006)
10:29:27 PCI: Setting latency timer of device 0000:00:02.1 to 64
10:29:27 [drm] Initialized i915 1.5.0 20060119 on minor 1:
10:29:27 [drm] Used old pci detect: framebuffer loaded
[...]
11:02:10 Unable to handle kernel NULL pointer dereference at virtual address
00000000
11:02:10 printing eip:
11:02:10 f3ba07d8
11:02:10 *pde = 00000000
11:02:10 Oops: 0000 [#1]
11:02:10 Modules linked in: i915 drm snd_pcm_oss snd_mixer_oss snd_seq_oss
snd_seq_midi_event
q snd_seqsnd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd
soundcore snd_page_al
i_hcd ehciswrapper usbhid sd_mod usb_storage isofs zlib_inflate pcmcia
yenta_socket rsrc_nons
cmcia_corvmmon rtc fjbtndrv speedstep_centrino processor loop tun 8250 serial_core
11:02:10 CPU:    0
11:02:10 EIP:    0060:[<f3ba07d8>]    Tainted: P      VLI
11:02:10 EFLAGS: 00010246   (2.6.15.6-skas3-v9-pre8-sw22)
11:02:10 EIP is at drm_lastclose+0xcc/0x2f4 [drm]
11:02:10 eax: 00000000   ebx: fffffff4   ecx: 00000000   edx: 00000000
11:02:10 esi: e7798c00   edi: f3a3ed60   ebp: c4370000   esp: c4371f30
11:02:10 ds: 007b   es: 007b   ss: 0068
11:02:10 Process rmmod (pid: 8548, threadinfo=c4370000 task=eeedc540)
11:02:10 Stack: e7798c00 00000001 f3a3ed60 f3ba5ec1 e7798c00 e7798c00 f3ba601a
e7798c00
11:02:10 f3a3efc0 00000000 c4370000 f3a3d19e f3a3ed60 c012590d 00000000 35313969
11:02:10 ffffff00 ef2e36fc 40018000 c014216c e75943c0 ef2e36fc ef2e364c e75943c0
11:02:10 Call Trace:
11:02:10 [<f3ba5ec1>] drm_cleanup+0x38/0x12b [drm]
11:02:10 [<f3ba601a>] drm_exit+0x66/0x87 [drm]
11:02:10 [<f3a3d19e>] i915_exit+0xa/0x30 [i915]
11:02:10 [<c012590d>] sys_delete_module+0x125/0x154
11:02:10 [<c014216c>] do_munmap+0xe7/0xf3
11:02:10 [<c01421b7>] sys_munmap+0x3f/0x5a
11:02:10 [<c0102a0f>] sysenter_past_esp+0x54/0x75
11:02:10 Code: 74 20 31 c0 83 c9 ff 89 d7 f2 ae f7 d1 49 52 e8 b1 a1 59 cc 59 c7
06 00 00 00
00 c7 46 04 00 00 00 00 8b 96 cc 00 00 00 8d 5a f4 <8b> 7b 0c 83 ef 0c 8d 86 cc
00 00 00 39 c2 74 3f 8d 4b 0
c 8b 43





This is using:

X Window System Version 7.1.0
Release Date: 22 May 2006
X Protocol Version 11, Revision 0, Release 7.1
Build Operating System: Linux 2.6.15.6-skas3-v9-pre8-sw22 i686 
Current Operating System: Linux tnuctip.rychter.com 2.6.17.3-skas3-v9-pre9-sw227
#1 Thu Jul 6 14:31:41 CEST 2006 i686
Build Date: 05 July 2006
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present

and the current kernel is:

Linux tnuctip 2.6.17.3-skas3-v9-pre9-sw227 #1 Thu Jul 6 14:31:41 CEST 2006 i686
Intel(R) Pentium(R) M processor 1.10GHz GNU/Linux


the i915 and drm modules are the in-kernel ones from 2.6.17.3.          
     
     
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