Ubuntu
linux package

BUG: unable to handle kernel NULL pointer dereference agp_generic_create_gatt_table

Bug #352407 reported by Shahar Or on 2009-03-31

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Expired	Medium	Unassigned

Bug Description

Dear interested parties,

Please look at trace soon after "[ 11.852331] Linux agpgart interface v0.103"

I wasn't sure if I should report this, since it makes no obvious problem in the system's operation.

[ 12.086651] BUG: unable to handle kernel NULL pointer dereference at 00000008
[ 12.086657] IP: [<de99e1e0>] :agpgart:agp_generic_create_gatt_table+0x150/0x1f0
[ 12.086671] *pde = 00000000
[ 12.086676] Oops: 0000 [#1] SMP
[ 12.086680] Modules linked in: amd64_agp(+) soundcore sis_agp snd_page_alloc agpgart shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom sd_mod crc_t10dif sg pata_acpi pata_sis ata_generic ohci_hcd ehci_hcd sis900 mii libata usbcore scsi_mod dock thermal processor fan fbcon tileblit font bitblit softcursor fuse
[ 12.086707]
[ 12.086711] Pid: 2318, comm: modprobe Not tainted (2.6.27-11-generic #1)
[ 12.086714] EIP: 0060:[<de99e1e0>] EFLAGS: 00010246 CPU: 0
[ 12.086724] EIP is at agp_generic_create_gatt_table+0x150/0x1f0 [agpgart]
[ 12.086727] EAX: 00000000 EBX: 000000cc ECX: 00000010 EDX: 00000002
[ 12.086731] ESI: db14a500 EDI: 00000000 EBP: dc23be74 ESP: dc23be58
[ 12.086734] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 12.086738] Process modprobe (pid: 2318, ti=dc23a000 task=dd0f0c90 task.ti=dc23a000)
[ 12.086741] Stack: dc23be64 db165000 00000007 00000010 000000cc 00000100 db14a500 dc23be9c
[ 12.086749] de99c1f4 dd0ffc00 dc23bed0 de9a88e1 db14a500 c0263f8d dd11e400 ffffffed
[ 12.086757] db14a500 dc23bed0 de99c456 c0263fd0 ffffffff dd0c0000 00000070 00000000
[ 12.086765] Call Trace:
[ 12.086768] [<de99c1f4>] ? agp_backend_initialize+0xc4/0x2a0 [agpgart]
[ 12.086778] [<de9a88e1>] ? fix_northbridge+0x66/0x2b6 [amd64_agp]
[ 12.086785] [<c0263f8d>] ? pci_get_subsys+0x5d/0x80
[ 12.086793] [<de99c456>] ? agp_add_bridge+0x56/0x1a0 [agpgart]
[ 12.086802] [<c0263fd0>] ? pci_get_device+0x20/0x30
[ 12.086807] [<c0119a02>] ? cache_k8_northbridges+0xd2/0x100
[ 12.086815] [<de9a8c33>] ? agp_amd64_probe+0x102/0x270 [amd64_agp]
[ 12.086822] [<de86c000>] ? agp_amd64_init+0x0/0xcd [amd64_agp]
[ 12.086828] [<de86c0c3>] ? agp_amd64_init+0xc3/0xcd [amd64_agp]
[ 12.086833] [<c0101120>] ? _stext+0x30/0x160
[ 12.086838] [<c012b55e>] ? try_to_wake_up+0xde/0x290
[ 12.086846] [<c014c6b4>] ? __blocking_notifier_call_chain+0x14/0x70
[ 12.086855] [<c015c2b8>] ? sys_init_module+0x88/0x1b0
[ 12.086863] [<c0103f7b>] ? sysenter_do_call+0x12/0x2f
[ 12.086868] =======================
[ 12.086870] Code: 31 db 90 8d 04 9d 00 00 00 00 8b 4e 24 89 c2 03 56 1c 89 0a 03 46 1c 8b 00 83 c3 01 3b 5d ec 7c e2 31 c0 e9 d9 fe ff ff 8d 76 00 <8b> 50 08 89 55 e8 8b 40 04 89 45 ec e9 17 ff ff ff 8d b4 26 00
[ 12.086907] EIP: [<de99e1e0>] agp_generic_create_gatt_table+0x150/0x1f0 [agpgart] SS:ESP 0068:dc23be58
[ 12.086920] ---[ end trace 59d3649cd64e978f ]---

Many blessings.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
LsUsb:
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 03f0:6004 Hewlett-Packard DeskJet 5550
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
NonfreeKernelModules: ath_hal
Package: linux-image-2.6.27-11-generic 2.6.27-11.27
ProcCmdLine: root=UUID=c4fa4819-89ed-41dd-ac15-8c3f3de302b5 ro quiet splash
ProcEnviron:
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
LANG=he_IL.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.27-11.27-generic
SourcePackage: linux

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