The other night I plugged a thumb drive into a Belkin 4-port USB hub. This had the side effect of disconnecting an Iomega USB drive that was plugged into the same hub.
I have since been unable to reproduce the problem, but I'm concerned about the possibility of data loss when a drive gets disconnected like that. The system is running Xfce on Debian Testing. Linux allegro 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt7-1 (2015-03-01) x86_64 GNU/Linux I've put the relevant excerpt from /dev/log/syslog below. A couple questions: - Do I need to have a reproducible test case before opening a bug? - What sort of information should I gather if I see this happen again? thanks, mike Mar 9 18:01:37 allegro kernel: [34452.783990] usb 1-4.3: USB disconnect, device number 6 Mar 9 18:01:37 allegro udisksd[1059]: Cleaning up mount point /media/kupfer/external (device 8:17 no longer exist) Mar 9 18:01:37 allegro kernel: [34453.236267] Buffer I/O error on device sdb1, logical block 39027202 Mar 9 18:01:37 allegro kernel: [34453.236272] lost page write due to I/O error on sdb1 Mar 9 18:01:37 allegro kernel: [34453.236275] JBD2: Error -5 detected when updating journal superblock for sdb1-8. Mar 9 18:01:38 allegro kernel: [34453.327437] usb 1-4.3: new high-speed USB device number 7 using ehci-pci Mar 9 18:01:38 allegro kernel: [34453.421021] usb 1-4.3: New USB device found, idVendor=059b, idProduct=0470 Mar 9 18:01:38 allegro kernel: [34453.421034] usb 1-4.3: New USB device strings: Mfr=10, Product=11, SerialNumber=5 Mar 9 18:01:38 allegro kernel: [34453.421040] usb 1-4.3: Product: Storage Mar 9 18:01:38 allegro kernel: [34453.421046] usb 1-4.3: Manufacturer: Iomega Mar 9 18:01:38 allegro kernel: [34453.421051] usb 1-4.3: SerialNumber: 6E4B81FFFFFF Mar 9 18:01:38 allegro kernel: [34453.422875] usb-storage 1-4.3:1.0: USB Mass Storage device detected Mar 9 18:01:38 allegro kernel: [34453.423543] scsi7 : usb-storage 1-4.3:1.0 Mar 9 18:01:38 allegro kernel: [34453.623357] usb 1-4.4: new high-speed USB device number 8 using ehci-pci Mar 9 18:01:38 allegro kernel: [34453.716211] usb 1-4.4: New USB device found, idVendor=1976, idProduct=6025 Mar 9 18:01:38 allegro kernel: [34453.716223] usb 1-4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Mar 9 18:01:38 allegro kernel: [34453.716230] usb 1-4.4: Product: Flash Disk Mar 9 18:01:38 allegro kernel: [34453.716236] usb 1-4.4: Manufacturer: USB 2.0 Mar 9 18:01:38 allegro kernel: [34453.716240] usb 1-4.4: SerialNumber: 2708390023C94111 Mar 9 18:01:38 allegro kernel: [34453.717614] usb-storage 1-4.4:1.0: USB Mass Storage device detected Mar 9 18:01:38 allegro kernel: [34453.718137] scsi8 : usb-storage 1-4.4:1.0 Mar 9 18:01:38 allegro mtp-probe: checking bus 1, device 7: "/sys/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.3" Mar 9 18:01:38 allegro mtp-probe: checking bus 1, device 8: "/sys/devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.4" Mar 9 18:01:38 allegro mtp-probe: bus: 1, device: 7 was not an MTP device Mar 9 18:01:38 allegro mtp-probe: bus: 1, device: 8 was not an MTP device Mar 9 18:01:39 allegro kernel: [34454.465747] scsi 7:0:0:0: Direct-Access ST932032 5AS PQ: 0 ANSI: 2 CCS Mar 9 18:01:39 allegro kernel: [34454.466532] sd 7:0:0:0: Attached scsi generic sg2 type 0 Mar 9 18:01:39 allegro kernel: [34454.468758] sd 7:0:0:0: [sdb] 625142448 512-byte logical blocks: (320 GB/298 GiB) Mar 9 18:01:39 allegro kernel: [34454.469870] sd 7:0:0:0: [sdb] Write Protect is off Mar 9 18:01:39 allegro kernel: [34454.469882] sd 7:0:0:0: [sdb] Mode Sense: 28 00 00 00 Mar 9 18:01:39 allegro kernel: [34454.471025] sd 7:0:0:0: [sdb] No Caching mode page found Mar 9 18:01:39 allegro kernel: [34454.471038] sd 7:0:0:0: [sdb] Assuming drive cache: write through Mar 9 18:01:39 allegro kernel: [34454.539419] sdb: sdb1 Mar 9 18:01:39 allegro kernel: [34454.543881] sd 7:0:0:0: [sdb] Attached SCSI disk Mar 9 18:01:39 allegro kernel: [34454.715867] scsi 8:0:0:0: Direct-Access USB 2.0 Flash Disk 5.00 PQ: 0 ANSI: 2 Mar 9 18:01:39 allegro kernel: [34454.716715] sd 8:0:0:0: Attached scsi generic sg3 type 0 Mar 9 18:01:39 allegro kernel: [34454.717660] sd 8:0:0:0: [sdc] 514560 512-byte logical blocks: (263 MB/251 MiB) Mar 9 18:01:39 allegro kernel: [34454.722017] sd 8:0:0:0: [sdc] Write Protect is off Mar 9 18:01:39 allegro kernel: [34454.722029] sd 8:0:0:0: [sdc] Mode Sense: 0b 00 00 08 Mar 9 18:01:39 allegro kernel: [34454.723151] sd 8:0:0:0: [sdc] No Caching mode page found Mar 9 18:01:39 allegro kernel: [34454.723159] sd 8:0:0:0: [sdc] Assuming drive cache: write through Mar 9 18:01:39 allegro kernel: [34454.727341] sdc: sdc1 Mar 9 18:01:39 allegro kernel: [34454.730775] sd 8:0:0:0: [sdc] Attached SCSI removable disk -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/10257.1426176291@allegro.localdomain
