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 -- -- http://pgp.mit.edu:11371/pks/lookup?op=vindex&search=0x1D936C72FA35B44B +-------------------------+-----------------------------------+ | Dennis Clarke | Solaris and Linux and Open Source | | dcla...@blastwave.org | Respect for open standards. | +-------------------------+-----------------------------------+ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/37271.10.0.66.17.1332885610.squir...@interact.purplecow.org
