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Date: Sun, 07 Dec 2003 23:54:23 +0100
From: Vince <fuzzy77@free.fr>
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To: Duncan Sands <baldrick@free.fr>
CC: "Randy.Dunlap" <rddunlap@osdl.org>, mfedyk@matchmail.com,
       zwane@holomorphy.com, linux-kernel@vger.kernel.org
Subject: Re: [OOPS,  usbcore, releaseintf] 2.6.0-test10-mm1
References: <3FC4E8C8.4070902@free.fr> <200312070125.56251.baldrick@free.fr> <3FD39722.8000500@free.fr> <200312072224.32417.baldrick@free.fr>
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Duncan Sands wrote:
> Hi Vincent, that's great!  I think the fix is solid, but can you please beat on it
> a bit just to be sure...
> 
> Thanks,
> 
> Duncan.

I'm not sure how to reproduce the previous oops (not even if it was 
really related to your patch...), but here follows a real, untainted 
oops I finally got:

[9889]: shutting down for system reboot
printing eip:
c8ae8999
Oops: 0000 [#1]
PREEMPT
CPU:    0
EIP:    0060:[<c8ae8999>]    Not tainted VLI
EFLAGS: 00010286
EIP is at hcd_pci_release+0x19/0x20 [usbcore]
eax: c8c69d80   ebx: c637f050   ecx: c8af6c20   edx: c637f000
esi: c031e65c   edi: c031e680   ebp: c0019ec4   esp: c0019ec0
ds: 007b   es: 007b   ss: 0068
Process modem_run (pid: 8460, threadinfo=c0018000 task=c1508080)
Stack: c637f000 c0019ed0 c8ae455d c637f000 c0019ee8 c0203738 c637f048 
c0019f00
c8ae77d6 c031e450 c0019f00 c01bc88f c637f050 c6b09200 c031e428 c031e440
c0019f10 c8ae08b6 c637f050 00000000 c0019f2c c02019e1 c6b092cc c0019f2c
Call Trace:
[<c8ae455d>] usb_host_release+0x1d/0x20 [usbcore]
[<c0203738>] class_dev_release+0x58/0x60
[<c8ae77d6>] usb_destroy_configuration+0xb6/0xf0 [usbcore]
[<c01bc88f>] kobject_cleanup+0x6f/0x80
[<c8ae08b6>] usb_release_dev+0x46/0x60 [usbcore]
[<c02019e1>] device_release+0x21/0x80
[<c01bc88f>] kobject_cleanup+0x6f/0x80
[<c8ae9b38>] usbdev_release+0x88/0xc0 [usbcore]
[<c0157a5c>] __fput+0x10c/0x120
[<c0156047>] filp_close+0x57/0x80
[<c01560d1>] sys_close+0x61/0x90
[<c02a302e>] sysenter_past_esp+0x43/0x65

Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 89 e5 83 
ec 04 8b 45 08 8b 50 30 85 d2 74 0c 8b 82 08 01 00 00 89 14 24 <ff> 50 
28 c9 c3 89 f6 55 89 e5 57 56 53 83 ec 34 8b 5d 0c e8 3f
<0>Fatal exception: panic in 5 seconds