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SubjectRe: 2.6.19-rc5-mm2

got the following when removing ohci1394 (also happens in -mm1), config
and full dmesg are here:

ieee1394: Node removed: ID:BUS[0-00:1023] GUID[080046030227e7bb]
ieee1394: Node removed: ID:BUS[20754571-38:0391] GUID[00000000f8eb5067]
BUG: unable to handle kernel NULL pointer dereference at virtual address 000000a4
printing eip:
*pde = 00000000
Oops: 0000 [#1]
last sysfs file: /devices/pci0000:00/0000:00:1c.1/0000:06:00.0/cmd
Modules linked in: ipv6 cpufreq_ondemand acpi_cpufreq freq_table thermal fan button processor ac battery ipt_MASQUERADE iptable_nat ip_nat xt_tcpudp xt_state ip_conntrack nfnetlink iptable_filter ip_tables x_tables dm_snapshot dm_mirror dm_mod sonypi sony_acpi backlight loop hci_usb bluetooth eth1394 usb_storage pcmcia snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss ipw3945 snd_pcm ieee80211 ieee80211_crypt i2c_i801 intel_agp ohci1394 ide_cd firmware_class yenta_socket rsrc_nonstatic pcmcia_core sky2 tifm_7xx1 tifm_core agpgart rtc uhci_hcd psmouse tpm_infineon tpm tpm_bios ieee1394 snd_timer evdev usbcore pcspkr cdrom snd soundcore snd_page_alloc
CPU: 0
EIP: 0060:[<c0238c60>] Not tainted VLI
EFLAGS: 00010246 (2.6.19-rc5-mm2-1 #9)
EIP is at class_device_remove_attrs+0xd/0x34
eax: f7f7938c ebx: 00000000 ecx: c012013a edx: 00000000
esi: 00000000 edi: f7f7938c ebp: f71a7df4 esp: f71a7de8
ds: 007b es: 007b ss: 0068
Process rmmod (pid: 2398, ti=f71a6000 task=c1974030 task.ti=f71a6000)
Stack: f7f7938c f7f79394 00000000 f71a7e10 c0238d47 00000000 f7f791f4 f7f7938c
f7f79230 00000000 f71a7e1c c0238d82 f7f791f4 f71a7e44 f8d49ea9 f8d4f495
013cb08b 00000026 00000187 f8eb5067 00000000 00000000 f8d49ebe f71a7e4c
Call Trace:
[<c0238d47>] class_device_del+0xc0/0xf0
[<c0238d82>] class_device_unregister+0xb/0x15
[<f8d49ea9>] nodemgr_remove_ne+0x64/0x79 [ieee1394]
[<f8d49ec9>] __nodemgr_remove_host_dev+0xb/0xf [ieee1394]
[<c02366dc>] device_for_each_child+0x1d/0x46
[<f8d49f9a>] nodemgr_remove_host+0x33/0x90 [ieee1394]
[<f8d47500>] __unregister_host+0x1b/0x9b [ieee1394]
[<f8d47716>] highlevel_remove_host+0x24/0x47 [ieee1394]
[<f8d4715e>] hpsb_remove_host+0x3b/0x5d [ieee1394]
[<f8dca212>] ohci1394_pci_remove+0x47/0x1c7 [ohci1394]
[<c01dd619>] pci_device_remove+0x19/0x39
[<c02383f7>] __device_release_driver+0x71/0x86
[<c023885f>] driver_detach+0x83/0xc4
[<c023802b>] bus_remove_driver+0x5a/0x76
[<c02388c7>] driver_unregister+0xb/0x18
[<c01dd787>] pci_unregister_driver+0xf/0x5b
[<f8dcd2de>] ohci1394_cleanup+0xd/0xf [ohci1394]
[<c013b193>] sys_delete_module+0x18c/0x1b5
[<c0102d66>] sysenter_past_esp+0x5f/0x85
DWARF2 unwinder stuck at sysenter_past_esp+0x5f/0x85
Leftover inexact backtrace:
Code: c0 08 e8 fb f2 f5 ff 89 c1 5d 89 c8 c3 55 85 c0 89 e5 74 08 83 c0 08 e8 6b d9 f5 ff 5d c3 55 89 e5 57 89 c7 56 53 31 db 8b 70 48 <83> be a4 00 00 00 00 75 09 eb 17 89 f8 e8 d0 ff ff ff 89 da 83
EIP: [<c0238c60>] class_device_remove_attrs+0xd/0x34 SS:ESP 0068:f71a7de8

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