linux-kernel - 2.6.20-mm1 USB-related OOPS

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Date:	Fri, 16 Feb 2007 18:17:54 -0700
From:	"Berck E. Nash" <flyboy@...il.com>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: 2.6.20-mm1 USB-related OOPS

I get the following OOPS on boot, presumably connected with USB driver
loading.  I've attached the entire log.  Please CC on replies as I'm not
subscribed.

[  149.525742] Unable to handle kernel NULL pointer dereference at
0000000000000008 RIP:
[  149.531302]  [<ffffffff8887eec3>] :cdc_acm:acm_probe+0x1dd/0x741
[  149.539958] PGD 3d248067 PUD 3d23c067 PMD 0
[  149.544431] Oops: 0000 [1] PREEMPT SMP
[  149.548475] last sysfs file: /class/net/lo/operstate
[  149.553510] CPU 0
[  149.555618] Modules linked in: cdc_acm snd_rtctimer w83627ehf eeprom
i2c_isa nvidia(P) usb_storage usbhid 8139cp snd_hda_intel snd_hda_codec
snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss
snd_seq_midi_event snd_seq snd_timer snd_seq_device snd 8139too uhci_hcd
mii soundcore snd_page_alloc i2c_i801 evdev usbcore i2c_core floppy
[  149.587337] Pid: 1620, comm: modprobe Tainted: P       2.6.20-mm1 #3
[  149.593785] RIP: 0010:[<ffffffff8887eec3>]  [<ffffffff8887eec3>]
:cdc_acm:acm_probe+0x1dd/0x741
[  149.602650] RSP: 0018:ffff81003df29c98  EFLAGS: 00010246
[  149.608045] RAX: ffff81003eb14800 RBX: ffff81003eb14820 RCX:
ffff81003eb21008
[  149.615278] RDX: ffff81003eb14800 RSI: 0000000000000000 RDI:
0000000000000000
[  149.622507] RBP: 0000000000000000 R08: 0000000000000001 R09:
ffffffff88880d80
[  149.629730] R10: 0000000000000000 R11: ffffc2000019a7f8 R12:
ffffffff88880d80
[  149.636960] R13: ffff81003f555800 R14: 0000000000000000 R15:
ffff81003eb14800
[  149.644183] FS:  00002abc668716d0(0000) GS:ffffffff80544000(0000)
knlGS:0000000000000000
[  149.652393] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  149.658217] CR2: 0000000000000008 CR3: 000000003d25d000 CR4:
00000000000006e0
[  149.665458] Process modprobe (pid: 1620, threadinfo ffff81003df28000,
task ffff81003eeb0950)
[  149.674014] Stack:  ffff81003d21af20 ffff81003eb14800
ffff81003edf3418 ffff81003d21af20
[  149.682317]  00000000fffffff4 ffff81003d4e3820 00ffffff804db922
0000000000000001
[  149.689981]  0000001088880db0 ffff81003d21af20 ffffffff8801cbe5
ffff81003eb14820
[  149.697455] Call Trace:
[  149.700194]  [<ffffffff8801cbe5>] :usbcore:usb_match_one_id+0x26/0x84
[  149.706742]  [<ffffffff8801d78e>] :usbcore:usb_probe_interface+0x7d/0xa5
[  149.713544]  [<ffffffff8039ac88>] driver_probe_device+0xf6/0x17f
[  149.719654]  [<ffffffff8039ad94>] __driver_attach+0x0/0x93
[  149.725230]  [<ffffffff8039adee>] __driver_attach+0x5a/0x93
[  149.730893]  [<ffffffff8039a14e>] bus_for_each_dev+0x43/0x6e
[  149.736644]  [<ffffffff8039a48e>] bus_add_driver+0x6b/0x18d
[  149.742310]  [<ffffffff8801d2b0>] :usbcore:usb_register_driver+0x85/0xeb
[  149.749113]  [<ffffffff880560cc>] :cdc_acm:acm_init+0xcc/0x105
[  149.755037]  [<ffffffff8028dd0b>] sys_init_module+0x1572/0x16d2
[  149.761058]  [<ffffffff802561ce>] system_call+0x7e/0x83
[  149.766361]
[  149.767898]
[  149.767898] Code: 49 8b 46 08 80 78 05 0a 74 17 49 8b 47 08 80 78 05
0a 0f 85
[  149.777661] RIP  [<ffffffff8887eec3>] :cdc_acm:acm_probe+0x1dd/0x741
[  149.784146]  RSP <ffff81003df29c98>
[  149.787694] CR2: 0000000000000008

View attachment "oops" of type "text/plain" (41599 bytes)