Yes, the kernel in comment 20 for bug 844957 fixes the kernel panic for me too.
Here is my dmesg with 3.0.0-13-generic kernel for plugging in and then ejecting external hd: [ 73.844080] usb 1-4: new high speed USB device number 5 using ehci_hcd [ 74.360577] usbcore: registered new interface driver uas [ 74.375522] Initializing USB Mass Storage driver... [ 74.375654] scsi6 : usb-storage 1-4:1.0 [ 74.375726] usbcore: registered new interface driver usb-storage [ 74.375727] USB Mass Storage support registered. [ 75.372744] scsi 6:0:0:0: Direct-Access WD 5000AAK External 1.05 PQ: 0 ANSI: 4 [ 75.404295] sd 6:0:0:0: Attached scsi generic sg2 type 0 [ 75.406481] sd 6:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB) [ 75.407362] sd 6:0:0:0: [sdb] Write Protect is off [ 75.407366] sd 6:0:0:0: [sdb] Mode Sense: 21 00 00 00 [ 75.408209] sd 6:0:0:0: [sdb] No Caching mode page present [ 75.408214] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 75.410991] sd 6:0:0:0: [sdb] No Caching mode page present [ 75.410995] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 75.430111] sdb: sdb1 sdb2 [ 75.433487] sd 6:0:0:0: [sdb] No Caching mode page present [ 75.433491] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 75.433494] sd 6:0:0:0: [sdb] Attached SCSI disk [ 188.559318] scsi: killing requests for dead queue [ 188.559420] quiet_error: 15 callbacks suppressed [ 188.559428] Buffer I/O error on device sdb1, logical block 122 [ 188.559439] Buffer I/O error on device sdb1, logical block 122 [ 188.559489] Buffer I/O error on device sdb1, logical block 0 [ 188.559496] Buffer I/O error on device sdb1, logical block 0 [ 188.559512] Buffer I/O error on device sdb1, logical block 2 [ 188.559519] Buffer I/O error on device sdb1, logical block 2 [ 188.559528] Buffer I/O error on device sdb1, logical block 0 [ 188.559537] Buffer I/O error on device sdb1, logical block 0 [ 188.559552] Buffer I/O error on device sdb1, logical block 30524500 [ 188.559567] Buffer I/O error on device sdb1, logical block 0 [ 188.559717] WARNING! power/level is deprecated; use power/control instead [ 188.636148] usb 1-4: USB disconnect, device number 5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/880044 Title: Kernel panic while "ejecting" external hd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880044/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
