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Date: Tue, 16 Jul 2002 10:35:04 -0700
From: Matthew Dharm <mdharm-kernel@one-eyed-alien.net>
To: Stelian Pop <stelian.pop@fr.alcove.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Breakage with "usb-storage: catch bad commands"
Message-ID: <20020716103503.B14269@one-eyed-alien.net>
Mail-Followup-To: Stelian Pop <stelian.pop@fr.alcove.com>,
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References: <20020716140722.GM7955@tahoe.alcove-fr>
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In-Reply-To: <20020716140722.GM7955@tahoe.alcove-fr>; from stelian.pop@fr.alcove.com on Tue, Jul 16, 2002 at 04:07:22PM +0200
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Can you recompile with the verbose debugging turned on so we can see which
command caused the problem?

Matt

On Tue, Jul 16, 2002 at 04:07:22PM +0200, Stelian Pop wrote:
> Hi,
>=20
> Using the linux 2.5 BK head, I get an oops, just after:
> 	Initializing USB Mass Storage driver...
> 	usb.c: registered new driver usb-storage
> 	scsi0 : SCSI emulation for USB Mass Storage devices
> 	  Vendor: Sony      Model: MSC-U01N          Rev: 1.00
> 	  Type:   Direct-Access                      ANSI SCSI revision: 02
>=20
> Just FYI, since the driver (probably more likely the SCSI layer)
> stopped working some (2-3) kernel releases ago...
>=20
> Thanks,
>=20
> Stelian.
>=20
> ksymoops 2.4.4 on i586 2.5.25.  Options used
>      -V (default)
>      -k /proc/ksyms (default)
>      -l /proc/modules (default)
>      -o /lib/modules/2.5.25/ (default)
>      -m /boot/System.map-2.5.25 (default)
>=20
> Warning: You did not tell me where to find symbol information.  I will
> assume that the log matches the kernel and modules that are running
> right now and I'll use the default options above for symbol resolution.
> If the current kernel and/or modules do not match the log, you can get
> more accurate output by telling me the kernel version and where to find
> map, modules, ksyms etc.  ksymoops -h explains the options.
>=20
> kernel BUG at transport.c:351!
> invalid operand: 0000
> CPU:    0
> EIP:    0010:[<c78ed363>]    Not tainted
> Using defaults from ksymoops -t elf32-i386 -a i386
> EFLAGS: 00010293
> eax: 000000ff   ebx: c137be00   ecx: c78efc20   edx: 00000024
> esi: ffffffff   edi: 00000000   ebp: c137be00   esp: c4ebdf34
> ds: 0018   es: 0018   ss: 0018
> Stack: c137b800 c137be00 c137b800 c78edd1c c137be00 c137b800 00000000 c78=
ed7b5=20
>        c137be00 c137b800 00000000 c5650580 00000246 00000000 00000001 c56=
50580=20
>        c01128e1 c137be00 00000000 c137b800 c137b800 c78ed0ce c137be00 c13=
7b800=20
> Call Trace: [<c78edd1c>] [<c78ed7b5>] [<c01128e1>] [<c78ed0ce>] [<c78f126=
c>]=20
>    [<c78ee74a>] [<c01122f0>] [<c0108519>] [<c78ee447>] [<c0106ea6>] [<c78=
ee447>]=20
>    [<c78f126c>]=20
> Code: 0f 0b 5f 01 c4 02 8f c7 5b 89 d0 5e 5f c3 8b 44 24 04 8b 40=20
>=20
> >>EIP; c78ed363 <[usb-storage]usb_stor_transfer_length+16b/179>   <=3D=3D=
=3D=3D=3D
> Trace; c78edd1c <[usb-storage]usb_stor_CB_transport+8c/b9>
> Trace; c78ed7b5 <[usb-storage]usb_stor_invoke_transport+1b/239>
> Trace; c01128e1 <default_wake_function+0/36>
> Trace; c78ed0ce <[usb-storage]usb_stor_ufi_command+10a/132>
> Trace; c78f126c <[usb-storage]usb_stor_sense_notready+0/14>
> Trace; c78ee74a <[usb-storage]usb_stor_control_thread+303/3aa>
> Trace; c01122f0 <schedule_tail+1a/1d>
> Trace; c0108519 <ret_from_fork+5/14>
> Trace; c78ee447 <[usb-storage]usb_stor_control_thread+0/3aa>
> Trace; c0106ea6 <kernel_thread+26/30>
> Trace; c78ee447 <[usb-storage]usb_stor_control_thread+0/3aa>
> Trace; c78f126c <[usb-storage]usb_stor_sense_notready+0/14>
> Code;  c78ed363 <[usb-storage]usb_stor_transfer_length+16b/179>
> 00000000 <_EIP>:
> Code;  c78ed363 <[usb-storage]usb_stor_transfer_length+16b/179>   <=3D=3D=
=3D=3D=3D
>    0:   0f 0b                     ud2a      <=3D=3D=3D=3D=3D
> Code;  c78ed365 <[usb-storage]usb_stor_transfer_length+16d/179>
>    2:   5f                        pop    %edi
> Code;  c78ed366 <[usb-storage]usb_stor_transfer_length+16e/179>
>    3:   01 c4                     add    %eax,%esp
> Code;  c78ed368 <[usb-storage]usb_stor_transfer_length+170/179>
>    5:   02 8f c7 5b 89 d0         add    0xd0895bc7(%edi),%cl
> Code;  c78ed36e <[usb-storage]usb_stor_transfer_length+176/179>
>    b:   5e                        pop    %esi
> Code;  c78ed36f <[usb-storage]usb_stor_transfer_length+177/179>
>    c:   5f                        pop    %edi
> Code;  c78ed370 <[usb-storage]usb_stor_transfer_length+178/179>
>    d:   c3                        ret   =20
> Code;  c78ed371 <[usb-storage]usb_stor_blocking_completion+0/c>
>    e:   8b 44 24 04               mov    0x4(%esp,1),%eax
> Code;  c78ed375 <[usb-storage]usb_stor_blocking_completion+4/c>
>   12:   8b 40 00                  mov    0x0(%eax),%eax
>=20
>  kernel BUG at scsiglue.c:150!
> invalid operand: 0000
> CPU:    0
> EIP:    0010:[<c78ec18f>]    Not tainted
> EFLAGS: 00010002
> eax: 00000003   ebx: 00000001   ecx: c137be00   edx: c137b800
> esi: 00000292   edi: c137be00   ebp: c4efff28   esp: c4effef4
> ds: 0018   es: 0018   ss: 0018
> Stack: c4efe000 c788356b c137be00 c788303e c137ba00 00000000 00000000 000=
00000=20
>        c4efff34 c4efff34 43434700 00000086 c0256e90 00000000 00000000 000=
00000=20
>        c4efff34 c4efff34 00000246 c4efff58 c4efe000 c137be00 c137be58 000=
00000=20
> Call Trace: [<c788356b>] [<c788303e>] [<c7883398>] [<c7883f02>] [<c78ec06=
6>]=20
>    [<c78846aa>] [<c0108519>] [<c78ec066>] [<c0106ea6>] [<c788454a>]=20
> Code: 0f 0b 96 00 c8 01 8f c7 8b 44 24 0c 89 81 00 01 00 00 89 8a=20
>=20
> >>EIP; c78ec18f <[usb-storage]queuecommand+32/60>   <=3D=3D=3D=3D=3D
> Trace; c788356b <[scsi_mod]scsi_send_eh_cmnd+ac/1e0>
> Trace; c788303e <[scsi_mod]scsi_eh_done+0/6c>
> Trace; c7883398 <[scsi_mod]scsi_test_unit_ready+85/10b>
> Trace; c7883f02 <[scsi_mod]scsi_unjam_host+31f/967>
> Trace; c78ec066 <[usb-storage]detect+0/28>
> Trace; c78846aa <[scsi_mod]scsi_error_handler+160/1b2>
> Trace; c0108519 <ret_from_fork+5/14>
> Trace; c78ec066 <[usb-storage]detect+0/28>
> Trace; c0106ea6 <kernel_thread+26/30>
> Trace; c788454a <[scsi_mod]scsi_error_handler+0/1b2>
> Code;  c78ec18f <[usb-storage]queuecommand+32/60>
> 00000000 <_EIP>:
> Code;  c78ec18f <[usb-storage]queuecommand+32/60>   <=3D=3D=3D=3D=3D
>    0:   0f 0b                     ud2a      <=3D=3D=3D=3D=3D
> Code;  c78ec191 <[usb-storage]queuecommand+34/60>
>    2:   96                        xchg   %eax,%esi
> Code;  c78ec192 <[usb-storage]queuecommand+35/60>
>    3:   00 c8                     add    %cl,%al
> Code;  c78ec194 <[usb-storage]queuecommand+37/60>
>    5:   01 8f c7 8b 44 24         add    %ecx,0x24448bc7(%edi)
> Code;  c78ec19a <[usb-storage]queuecommand+3d/60>
>    b:   0c 89                     or     $0x89,%al
> Code;  c78ec19c <[usb-storage]queuecommand+3f/60>
>    d:   81 00 01 00 00 89         addl   $0x89000001,(%eax)
> Code;  c78ec1a2 <[usb-storage]queuecommand+45/60>
>   13:   8a 00                     mov    (%eax),%al
>=20
>=20
> 1 warning issued.  Results may not be reliable.
> --=20
> Stelian Pop <stelian.pop@fr.alcove.com>
> Alcove - http://www.alcove.com

--=20
Matthew Dharm                              Home: mdharm-usb@one-eyed-alien.=
net=20
Maintainer, Linux USB Mass Storage Driver

God, root, what is difference?
					-- Pitr
User Friendly, 11/11/1999

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