http://bugs.freedesktop.org/show_bug.cgi?id=14425
Summary: drm crash when agp not available
Product: DRI
Version: DRI CVS
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM modules
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: [EMAIL PROTECTED]
---from today's git drm tree---
kernel panic, quite obviously because drm continues to do work while it has
previously established that agp is not available. drm should just stop
immediately and exit.
[drm] Initialized drm 1.1.0 20060810
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:02.0 to 64
[drm:drm_fill_in_dev] *ERROR* Cannot initialize the agpgart module.
Unable to handle kernel NULL pointer dereference at 00000000000000f0 RIP:
[<ffffffff880e7eee>] :i915:i915_driver_lastclose+0x8e/0x130
PGD 5d196067 PUD 5d0f4067 PMD 0
Oops: 0000 [1] PREEMPT SMP
CPU 2
Modules linked in: i915 drm ipv6 uhci_hcd ehci_hcd e1000e e1000 e100 ohci1394
ie
ee1394
Pid: 15694, comm: modprobe Not tainted 2.6.24 #1
RIP: 0010:[<ffffffff880e7eee>] [<ffffffff880e7eee>]
:i915:i915_driver_lastclose
+0x8e/0x130
RSP: 0000:ffff81005b99fc58 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff810050eb5000 RCX: ffff810050eb5348
RDX: 0000000000000000 RSI: ffff810050eb5348 RDI: 0000002000000002
RBP: ffff810050eb5000 R08: 00000020ffffffff R09: 0000000000000000
R10: 0000000000000001 R11: ffffffff8055ada0 R12: ffff810050eb5000
R13: 0000000000000000 R14: ffff810050eb5380 R15: ffffffff880f0cc0
FS: 00002b805de996f0(0000) GS:ffff81007e00d580(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000000000f0 CR3: 0000000050ef6000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process modprobe (pid: 15694, threadinfo ffff81005b99e000, task
ffff81007e17c000
)
Stack: 00000000ffffffea ffff810050eb5000 00000000ffffffea ffff810050eb5000
ffffffff880f0720 ffffffff880bf75d 0000000000000000 ffff810050eb5000
00000000ffffffea ffff81007e122000 ffffffff880f0720 ffff810050eb5380
Call Trace:
[<ffffffff880bf75d>] :drm:drm_lastclose+0x3d/0x470
[<ffffffff880c4351>] :drm:drm_get_dev+0x401/0x650
[<ffffffff802f21b9>] sysfs_create_link+0xa9/0x150
[<ffffffff803559b6>] pci_device_probe+0x76/0xa0
[<ffffffff803b45fc>] driver_probe_device+0x9c/0x1b0
[<ffffffff803b47f0>] __driver_attach+0x0/0xb0
[<ffffffff803b4895>] __driver_attach+0xa5/0xb0
[<ffffffff803b380d>] bus_for_each_dev+0x4d/0x80
[<ffffffff803b3c7c>] bus_add_driver+0xac/0x220
[<ffffffff80355be3>] __pci_register_driver+0x73/0xc0
[<ffffffff80260f0e>] sys_init_module+0x18e/0x1a30
[<ffffffff8020be0e>] system_call+0x7e/0x83
Code: 49 83 bd f0 00 00 00 00 74 0c 49 8d bd f0 00 00 00 e8 cc 27
RIP [<ffffffff880e7eee>] :i915:i915_driver_lastclose+0x8e/0x130
RSP <ffff81005b99fc58>
CR2: 00000000000000f0
---[ end trace 3b414a88856b3b97 ]---
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