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Old 03-27-2012, 10:00 PM
Dennis Clarke
 
Default Strange USB issue on 6.0.4 : kernel: SMP

I have a HP external USB attached disk plugged into a USB port on my system.

Periodically, every eight or twelve hours or so, and without any real pattern
or trigger cause, I see the following message :

root@aster:~#
Message from syslogd@aster at Mar 26 15:23:02 ...
kernel:[1202001.893158] Oops: 0010 [#5] SMP

Message from syslogd@aster at Mar 26 15:23:02 ...
kernel:[1202001.893165] last sysfs file:
/sys/devices/pci0000:00/0000:00:02.0/usb3/3-1/3-1.3/3-1.3:1.0/host8/target8:0:0/8:0:0:0/block/sdc/uevent

Message from syslogd@aster at Mar 26 15:23:02 ...
kernel:[1202001.893435] Stack:

Message from syslogd@aster at Mar 26 15:23:02 ...
kernel:[1202001.893469] Call Trace:

Message from syslogd@aster at Mar 26 15:23:02 ...
kernel:[1202001.893735] Code: Bad RIP value.

Message from syslogd@aster at Mar 26 15:23:02 ...
kernel:[1202001.893754] CR2: 000000fd00000019

The external USB disk is no longer mounted and any attemp to read it ( with a
simple ls ) results in IO errors.

I unplug it.

Wait 30 secs or so.

Plug it back in and then I see in /dev/sd? thus :

root@aster:~# ls -laptr /dev/sd*
brw-rw---- 1 root disk 8, 16 Mar 12 17:29 /dev/sdb
brw-rw---- 1 root disk 8, 0 Mar 12 17:29 /dev/sda
brw-rw---- 1 root disk 8, 17 Mar 12 17:29 /dev/sdb1
brw-rw---- 1 root disk 8, 3 Mar 12 17:29 /dev/sda3
brw-rw---- 1 root disk 8, 2 Mar 12 17:29 /dev/sda2
brw-rw---- 1 root disk 8, 1 Mar 12 17:29 /dev/sda1
brw-rw---- 1 root disk 8, 4 Mar 12 17:29 /dev/sda4
brw-rw---- 1 root floppy 8, 33 Mar 12 17:29 /dev/sdc1
brw-rw---- 1 root floppy 8, 32 Mar 12 17:29 /dev/sdc
brw-rw---- 1 root floppy 8, 96 Mar 27 21:53 /dev/sdg
brw-rw---- 1 root floppy 8, 97 Mar 27 21:53 /dev/sdg1

The last entry there /dev/sdg1 would be my external HP disk which I can now
mount :

root@aster:~# /bin/mount -v -t ext4 -o rw /dev/sdg1 /hp

Now the filesystem is usable with no real issues.

I have to repeat this process daily, once or twice, and the message on the
console are generally the same. More or less.

How would I go about debugging this issue if it is caused by the USB driver ?

Thank you in advance for any insights.

Dennis



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+-------------------------+-----------------------------------+
| Dennis Clarke | Solaris and Linux and Open Source |
| dclarke@blastwave.org | Respect for open standards. |
+-------------------------+-----------------------------------+


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Old 03-28-2012, 03:43 PM
Camaleón
 
Default Strange USB issue on 6.0.4 : kernel: SMP

On Tue, 27 Mar 2012 18:00:10 -0400, Dennis Clarke wrote:

> I have a HP external USB attached disk plugged into a USB port on my
> system.
>
> Periodically, every eight or twelve hours or so, and without any real
> pattern or trigger cause, I see the following message :
>
> root@aster:~#
> Message from syslogd@aster at Mar 26 15:23:02 ...
> kernel:[1202001.893158] Oops: 0010 [#5] SMP

(...)

Being a kernel oops, I would report it in Debian BTS.

Greetings,

--
Camaleón


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Old 03-28-2012, 03:49 PM
Dennis Clarke
 
Default Strange USB issue on 6.0.4 : kernel: SMP

> On Tue, 27 Mar 2012 18:00:10 -0400, Dennis Clarke wrote:
>
>> I have a HP external USB attached disk plugged into a USB port on my
>> system.
>>
>> Periodically, every eight or twelve hours or so, and without any real
>> pattern or trigger cause, I see the following message :
>>
>> root@aster:~#
>> Message from syslogd@aster at Mar 26 15:23:02 ...
>> kernel:[1202001.893158] Oops: 0010 [#5] SMP
>
> (...)
>
> Being a kernel oops, I would report it in Debian BTS.

okay, will do. thanks

--
--
http://pgp.mit.edu:11371/pks/lookup?op=vindex&search=0x1D936C72FA35B44B
+-------------------------+-----------------------------------+
| Dennis Clarke | Solaris and Linux and Open Source |
| dclarke@blastwave.org | Respect for open standards. |
+-------------------------+-----------------------------------+


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