*** This bug is a duplicate of bug 811745 ***
    https://bugs.launchpad.net/bugs/811745

Hello,
1) Same diagnostic : freeze issue when unplugging USB Hard Disk using LTS 10.4 
/ Linux-image-2.6.32-33-generic (last upgrade).

/var/log/message :
Jul 26 21:16:32 tux-laptop kernel: [   62.674963]  sdb: sdb1
Jul 26 21:16:32 tux-laptop kernel: [   62.705811] sd 6:0:0:0: [sdb] Attached 
SCSI disk
Jul 26 21:18:37 tux-laptop kernel: imklog 4.2.0, log source = /proc/kmsg 
started.
Jul 26 21:18:37 tux-laptop rsyslogd: [origin software="rsyslogd" 
swVersion="4.2.0" x-pid="964" x-info="http://www.rsyslog.com";] (re)start
Jul 26 21:18:37 tux-laptop rsyslogd: rsyslogd's groupid changed to 102
Jul 26 21:18:37 tux-laptop rsyslogd: rsyslogd's userid changed to 101
Jul 26 21:18:37 tux-laptop kernel: [    0.000000] Initializing cgroup subsys 
cpuset
Jul 26 21:18:37 tux-laptop kernel: [    0.000000] Initializing cgroup subsys cpu
     End of the messages...

/var/log/kern.log
     Noindicationc


2) No trouble with previous Linux-image-2.6.32-32_generic.

/var/log/message :

Jul 26 21:19:41 tux-laptop kernel: [   93.119843] sd 6:0:0:0: [sdb] Attached 
SCSI disk
Jul 26 21:19:57 tux-laptop kernel: [  108.486374] usb 2-3: USB disconnect, 
address 3
Jul 26 21:23:08 tux-laptop kernel: [  299.876617] Machine check events logged

/var/log/kern.log
Jul 26 21:19:41 tux-laptop kernel: [   93.088224]  sdb: sdb1
Jul 26 21:19:41 tux-laptop kernel: [   93.119837] sd 6:0:0:0: [sdb] Assuming 
drive cache: write through
Jul 26 21:19:41 tux-laptop kernel: [   93.119843] sd 6:0:0:0: [sdb] Attached 
SCSI disk
Jul 26 21:19:57 tux-laptop kernel: [  108.486374] usb 2-3: USB disconnect, 
address 3
Jul 26 21:23:08 tux-laptop kernel: [  299.876617] Machine check events logged

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https://bugs.launchpad.net/bugs/811408

Title:
  [10.04 LTS] Freeze when unplugging USB devices (pb with 2.6.32-33)

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