A unidade USB externa está falhando

Question

Eu tenho uma unidade USB 2.0 externa WD My Book Mirror Edition , em execução no RAID 1 ( espelhamento). Um tempo atrás, o disco rígido começou a falhar: ele parou de responder (diretórios não são listados retornando um erro após um grande tempo limite). Às vezes funciona por semanas antes de uma falha, às vezes - poucas horas. Pequenas operações de gravação (como remover poucos arquivos ou editar um arquivo pequeno) não causam danos, mas ao copiar arquivos grandes para a unidade através da rede ou ao criar o arquivo localmente, o kernel faz o dump. Também é interessante notar que, uma vez que o kernel falhou, o Linux não quer reiniciar normalmente ( reboot trava); Quando a caixa Linux é desligada com o botão de energia, unidade WD não vai para o modo de suspensão (como costuma fazer): leds continuam a executar, pressionando e segurando o botão "shutdown" no painel traseiro da unidade não faz nada; apenas desconectar o cabo de energia ajuda.

Aqui vai o log de inicialização:

Aug 16 00:32:21 kernel: [    1.514106] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
Aug 16 00:32:21 kernel: [    1.657738] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23
Aug 16 00:32:21 kernel: [    1.673747] ehci_hcd 0000:00:1d.7: setting latency timer to 64
Aug 16 00:32:21 kernel: [    1.673751] ehci_hcd 0000:00:1d.7: EHCI Host Controller
Aug 16 00:32:21 kernel: [    1.725224] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
Aug 16 00:32:21 kernel: [    1.741647] ehci_hcd 0000:00:1d.7: using broken periodic workaround
Aug 16 00:32:21 kernel: [    1.761790] ehci_hcd 0000:00:1d.7: cache line size of 32 is not supported
Aug 16 00:32:21 kernel: [    1.761873] ehci_hcd 0000:00:1d.7: irq 23, io mem 0xfdfff000
Aug 16 00:32:21 kernel: [    1.796043] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00
Aug 16 00:32:21 kernel: [    1.879069] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
Aug 16 00:32:21 kernel: [    1.895446] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Aug 16 00:32:21 kernel: [    1.911796] usb usb1: Product: EHCI Host Controller
Aug 16 00:32:21 kernel: [    1.928015] usb usb1: Manufacturer: Linux 2.6.32-5-686 ehci_hcd
Aug 16 00:32:21 kernel: [    1.944331] usb usb1: SerialNumber: 0000:00:1d.7
Aug 16 00:32:21 kernel: [    1.961285] usb usb1: configuration #1 chosen from 1 choice
Aug 16 00:32:21 kernel: [    1.994412] hub 1-0:1.0: USB hub found
Aug 16 00:32:21 kernel: [    2.010864] hub 1-0:1.0: 8 ports detected
Aug 16 00:32:21 kernel: [    2.085939] uhci_hcd: USB Universal Host Controller Interface driver
Aug 16 00:32:21 kernel: [    2.191945] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
Aug 16 00:32:21 kernel: [    2.226029] uhci_hcd 0000:00:1d.0: setting latency timer to 64
Aug 16 00:32:21 kernel: [    2.226034] uhci_hcd 0000:00:1d.0: UHCI Host Controller
Aug 16 00:32:21 kernel: [    2.243237] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
Aug 16 00:32:21 kernel: [    2.260390] uhci_hcd 0000:00:1d.0: irq 23, io base 0x0000fe00
Aug 16 00:32:21 kernel: [    2.277517] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
Aug 16 00:32:21 kernel: [    2.294815] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Aug 16 00:32:21 kernel: [    2.312173] usb usb2: Product: UHCI Host Controller
Aug 16 00:32:21 kernel: [    2.329534] usb usb2: Manufacturer: Linux 2.6.32-5-686 uhci_hcd
Aug 16 00:32:21 kernel: [    2.346828] usb usb2: SerialNumber: 0000:00:1d.0
Aug 16 00:32:21 kernel: [    2.412989] usb usb2: configuration #1 chosen from 1 choice
Aug 16 00:32:21 kernel: [    2.430651] usb 1-2: new high speed USB device using ehci_hcd and address 2
Aug 16 00:32:21 kernel: [    2.449046] hub 2-0:1.0: USB hub found
Aug 16 00:32:21 kernel: [    2.466514] hub 2-0:1.0: 2 ports detected
Aug 16 00:32:21 kernel: [    2.484639] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
Aug 16 00:32:21 kernel: [    2.537750] uhci_hcd 0000:00:1d.1: setting latency timer to 64
Aug 16 00:32:21 kernel: [    2.537756] uhci_hcd 0000:00:1d.1: UHCI Host Controller
Aug 16 00:32:21 kernel: [    2.555085] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
Aug 16 00:32:21 kernel: [    2.572231] uhci_hcd 0000:00:1d.1: irq 19, io base 0x0000fd00
Aug 16 00:32:21 kernel: [    2.589593] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
Aug 16 00:32:21 kernel: [    2.606869] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Aug 16 00:32:21 kernel: [    2.624134] usb usb3: Product: UHCI Host Controller
Aug 16 00:32:21 kernel: [    2.641329] usb usb3: Manufacturer: Linux 2.6.32-5-686 uhci_hcd
Aug 16 00:32:21 kernel: [    2.658505] usb usb3: SerialNumber: 0000:00:1d.1
Aug 16 00:32:21 kernel: [    2.675843] usb usb3: configuration #1 chosen from 1 choice
Aug 16 00:32:21 kernel: [    2.692864] hub 3-0:1.0: USB hub found
Aug 16 00:32:21 kernel: [    2.709651] hub 3-0:1.0: 2 ports detected
Aug 16 00:32:21 kernel: [    2.727378] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
Aug 16 00:32:21 kernel: [    2.768252] uhci_hcd 0000:00:1d.2: setting latency timer to 64
Aug 16 00:32:21 kernel: [    2.768258] uhci_hcd 0000:00:1d.2: UHCI Host Controller
Aug 16 00:32:21 kernel: [    2.806679] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
Aug 16 00:32:21 kernel: [    2.824117] uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000fc00
Aug 16 00:32:21 kernel: [    2.841405] usb 1-2: New USB device found, idVendor=1058, idProduct=1104
Aug 16 00:32:21 kernel: [    2.858448] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Aug 16 00:32:21 kernel: [    2.875347] usb 1-2: Product: My Book
Aug 16 00:32:21 kernel: [    2.892113] usb 1-2: Manufacturer: Western Digital
Aug 16 00:32:21 kernel: [    2.908915] usb 1-2: SerialNumber: 575532553130303530353538
Aug 16 00:32:21 kernel: [    2.943242] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
Aug 16 00:32:21 kernel: [    2.960405] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Aug 16 00:32:21 kernel: [    2.977615] usb usb4: Product: UHCI Host Controller
Aug 16 00:32:21 kernel: [    2.994687] usb usb4: Manufacturer: Linux 2.6.32-5-686 uhci_hcd
Aug 16 00:32:21 kernel: [    3.011711] usb usb4: SerialNumber: 0000:00:1d.2
Aug 16 00:32:21 kernel: [    3.029589] usb usb4: configuration #1 chosen from 1 choice
Aug 16 00:32:21 kernel: [    3.082027] sd 2:0:0:0: [sda] Attached SCSI disk
Aug 16 00:32:21 kernel: [    3.103953] usb 1-2: configuration #1 chosen from 1 choice
Aug 16 00:32:21 kernel: [    3.122625] hub 4-0:1.0: USB hub found
Aug 16 00:32:21 kernel: [    3.140484] hub 4-0:1.0: 2 ports detected
Aug 16 00:32:21 kernel: [    3.161680] uhci_hcd 0000:00:1d.3: PCI INT D -> GSI 16 (level, low) -> IRQ 16
Aug 16 00:32:21 kernel: [    3.181257] uhci_hcd 0000:00:1d.3: setting latency timer to 64
Aug 16 00:32:21 kernel: [    3.181263] uhci_hcd 0000:00:1d.3: UHCI Host Controller
Aug 16 00:32:21 kernel: [    3.198614] uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 5
Aug 16 00:32:21 kernel: [    3.216012] uhci_hcd 0000:00:1d.3: irq 16, io base 0x0000fb00
Aug 16 00:32:21 kernel: [    3.249877] Uniform CD-ROM driver Revision: 3.20
Aug 16 00:32:21 kernel: [    3.267765] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
Aug 16 00:32:21 kernel: [    3.284947] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Aug 16 00:32:21 kernel: [    3.302023] usb usb5: Product: UHCI Host Controller
Aug 16 00:32:21 kernel: [    3.319215] usb usb5: Manufacturer: Linux 2.6.32-5-686 uhci_hcd
Aug 16 00:32:21 kernel: [    3.336298] usb usb5: SerialNumber: 0000:00:1d.3
Aug 16 00:32:21 kernel: [    3.368377] Initializing USB Mass Storage driver...
Aug 16 00:32:21 kernel: [    3.390652] usbcore: registered new interface driver hiddev
Aug 16 00:32:21 kernel: [    3.408109] scsi4 : SCSI emulation for USB Mass Storage devices
Aug 16 00:32:21 kernel: [    3.425281] sr 0:0:1:0: Attached scsi CD-ROM sr0
Aug 16 00:32:21 kernel: [    3.438978] sr 0:0:1:0: Attached scsi generic sg0 type 5
Aug 16 00:32:21 kernel: [    3.456328] usbcore: registered new interface driver usb-storage
Aug 16 00:32:21 kernel: [    3.474564] usb-storage: device found at 2
Aug 16 00:32:21 kernel: [    3.474567] usb-storage: waiting for device to settle before scanning
Aug 16 00:32:21 kernel: [    3.475320] sd 2:0:0:0: Attached scsi generic sg1 type 0
Aug 16 00:32:21 kernel: [    3.492587] USB Mass Storage support registered.
Aug 16 00:32:21 kernel: [    3.510930] usb usb5: configuration #1 chosen from 1 choice
Aug 16 00:32:21 kernel: [    3.531076] hub 5-0:1.0: USB hub found
Aug 16 00:32:21 kernel: [    3.548399] hub 5-0:1.0: 2 ports detected
Aug 16 00:32:21 kernel: [    3.591743] input: Western Digital My Book as /devices/pci0000:00/0000:00:1d.7/usb1/1-2/1-2:1.1/input/input2
Aug 16 00:32:21 kernel: [    3.609515] generic-usb 0003:1058:1104.0001: input,hidraw0: USB HID v1.11 Device [Western Digital My Book] on usb-0000:00:1d.7-2/input1
Aug 16 00:32:21 kernel: [    3.627466] usbcore: registered new interface driver usbhid
Aug 16 00:32:21 kernel: [    8.581664] usb-storage: device scan complete
Aug 16 00:32:21 kernel: [    8.624270] scsi 4:0:0:0: Direct-Access     WD       My Book          1008 PQ: 0 ANSI: 4
Aug 16 00:32:21 kernel: [    8.655135] scsi 4:0:0:1: Enclosure         WD       My Book Device   1008 PQ: 0 ANSI: 4
Aug 16 00:32:21 kernel: [    8.675393] sd 4:0:0:0: Attached scsi generic sg2 type 0
Aug 16 00:32:21 kernel: [    8.698669] scsi 4:0:0:1: Attached scsi generic sg3 type 13
Aug 16 00:32:21 kernel: [    8.723370] sd 4:0:0:0: [sdb] 1953513472 512-byte logical blocks: (1.00 TB/931 GiB)
Aug 16 00:32:21 kernel: [    8.750477] sd 4:0:0:0: [sdb] Write Protect is off
Aug 16 00:32:21 kernel: [    8.769411] sd 4:0:0:0: [sdb] Mode Sense: 10 00 00 00
Aug 16 00:32:21 kernel: [    8.769414] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Aug 16 00:32:21 kernel: [    8.822971] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Aug 16 00:32:21 kernel: [    8.841978]  sdb: sdb1
Aug 16 00:32:21 kernel: [    8.905580] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Aug 16 00:32:21 kernel: [    8.924173] sd 4:0:0:0: [sdb] Attached SCSI disk
Aug 16 00:32:21 kernel: [   11.600492] XFS mounting filesystem sdb1
Aug 16 00:32:21 kernel: [   12.222948] Ending clean XFS mount for filesystem: sdb1

Depois de um tempo, o seguinte aparece em um registro:

Aug 16 09:30:56 kernel: [32359.112029] usb 1-2: reset high speed USB device using ehci_hcd and address 2
Aug 16 09:31:59 kernel: [32422.112035] usb 1-2: reset high speed USB device using ehci_hcd and address 2
Aug 16 09:33:00 kernel: [32483.112029] usb 1-2: reset high speed USB device using ehci_hcd and address 2

E, em seguida, ele é seguido por alguns dumps de kernel, que, na minha opinião, não são bons:

Aug 16 09:33:40 kernel: [32520.428027] INFO: task xfssyncd:1002 blocked for more than 120 seconds.
Aug 16 09:33:40 kernel: [32520.462689] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 16 09:33:40 kernel: [32520.497422] xfssyncd      D c3d84a60     0  1002      2 0x00000000
Aug 16 09:33:40 kernel: [32520.532117]  f6c9aa80 00000046 c1132742 c3d84a60 00000286 c1418100 c1418100 00000000
Aug 16 09:33:40 kernel: [32520.566867]  f6c9ac3c c2808100 00000000 f653b18b 00001d76 00000001 f6c9aa80 c3c3f0e0
Aug 16 09:33:40 kernel: [32520.601343]  08e59242 f6c9ac3c 2e41392b 00000000 08e59242 00000000 c3f7fb48 0067385a
Aug 16 09:33:40 kernel: [32520.635533] Call Trace:
Aug 16 09:33:40 kernel: [32520.668991]  [<c1132742>] ? cfq_set_request+0x0/0x290
Aug 16 09:33:40 kernel: [32520.702804]  [<c126b532>] ? io_schedule+0x5f/0x98
Aug 16 09:33:40 kernel: [32520.736555]  [<c1128be0>] ? get_request_wait+0xcb/0x146
Aug 16 09:33:40 kernel: [32520.770360]  [<c10437ba>] ? autoremove_wake_function+0x0/0x2d
Aug 16 09:33:40 kernel: [32520.804110]  [<c112907c>] ? __make_request+0x2cc/0x3d9
Aug 16 09:33:40 kernel: [32520.837713]  [<c1128230>] ? blk_peek_request+0x135/0x143
Aug 16 09:33:40 kernel: [32520.871265]  [<f8582987>] ? scsi_dispatch_cmd+0x185/0x1e5 [scsi_mod]
Aug 16 09:33:40 kernel: [32520.904407]  [<c1127cf1>] ? generic_make_request+0x266/0x2b4
Aug 16 09:33:40 kernel: [32520.937007]  [<c10cf821>] ? bvec_alloc_bs+0x95/0xaf
Aug 16 09:33:40 kernel: [32520.969033]  [<c1127dfb>] ? submit_bio+0xbc/0xd6
Aug 16 09:33:40 kernel: [32521.000485]  [<c10cffd1>] ? bio_add_page+0x28/0x2e
Aug 16 09:33:40 kernel: [32521.031403]  [<f8918d38>] ? _xfs_buf_ioapply+0x206/0x22b [xfs]
Aug 16 09:33:40 kernel: [32521.061888]  [<f89197bd>] ? xfs_buf_iorequest+0x38/0x60 [xfs]
Aug 16 09:33:40 kernel: [32521.091845]  [<f8907230>] ? xlog_bdstrat_cb+0x16/0x3d [xfs]
Aug 16 09:33:40 kernel: [32521.121222]  [<f8905781>] ? XFS_bwrite+0x32/0x64 [xfs]
Aug 16 09:33:40 kernel: [32521.150007]  [<f89059be>] ? xlog_sync+0x20b/0x311 [xfs]
Aug 16 09:33:40 kernel: [32521.178214]  [<f89112fc>] ? xfs_trans_ail_tail+0x12/0x27 [xfs]
Aug 16 09:33:40 kernel: [32521.205914]  [<f8906261>] ? xlog_state_sync_all+0xa2/0x141 [xfs]
Aug 16 09:33:40 kernel: [32521.233074]  [<f8906611>] ? _xfs_log_force+0x51/0x68 [xfs]
Aug 16 09:33:40 kernel: [32521.259664]  [<c103abaf>] ? process_timeout+0x0/0x5
Aug 16 09:33:40 kernel: [32521.285662]  [<f8906636>] ? xfs_log_force+0xe/0x27 [xfs]
Aug 16 09:33:40 kernel: [32521.311171]  [<f89202df>] ? xfs_sync_worker+0x17/0x5c [xfs]
Aug 16 09:33:40 kernel: [32521.336117]  [<f891fbb7>] ? xfssyncd+0x134/0x17d [xfs]
Aug 16 09:33:40 kernel: [32521.360498]  [<f891fa83>] ? xfssyncd+0x0/0x17d [xfs]
Aug 16 09:33:40 kernel: [32521.384211]  [<c1043588>] ? kthread+0x61/0x66
Aug 16 09:33:40 kernel: [32521.407890]  [<c1043527>] ? kthread+0x0/0x66
Aug 16 09:33:40 kernel: [32521.430876]  [<c1003d47>] ? kernel_thread_helper+0x7/0x10
Aug 16 09:33:40 kernel: [32521.453394] INFO: task flush-8:16:12945 blocked for more than 120 seconds.
Aug 16 09:33:40 kernel: [32521.476116] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 16 09:33:40 kernel: [32521.498579] flush-8:16    D 00000000     0 12945      2 0x00000000
Aug 16 09:33:40 kernel: [32521.520649]  f4e4d540 00000046 e412e940 00000000 00000002 c1418100 c1418100 c14136ac
Aug 16 09:33:40 kernel: [32521.542426]  f4e4d6fc c2808100 00000000 00000000 000008b4 00000001 f4e4d540 c3c3f0e0
Aug 16 09:33:40 kernel: [32521.563745]  02e905a8 f4e4d6fc 007a5399 00000000 02e905a8 00000000 f4e2db48 00670b98
Aug 16 09:33:40 kernel: [32521.585077] Call Trace:
Aug 16 09:33:40 kernel: [32521.605790]  [<c126b532>] ? io_schedule+0x5f/0x98
Aug 16 09:33:40 kernel: [32521.626184]  [<c1128be0>] ? get_request_wait+0xcb/0x146
Aug 16 09:33:40 kernel: [32521.646133]  [<c10437ba>] ? autoremove_wake_function+0x0/0x2d
Aug 16 09:33:40 kernel: [32521.665659]  [<c112907c>] ? __make_request+0x2cc/0x3d9
Aug 16 09:33:40 kernel: [32521.684716]  [<f891796e>] ? xfs_convert_page+0x30a/0x331 [xfs]
Aug 16 09:33:40 kernel: [32521.703366]  [<c1127cf1>] ? generic_make_request+0x266/0x2b4
Aug 16 09:33:40 kernel: [32521.721644]  [<c10cf821>] ? bvec_alloc_bs+0x95/0xaf
Aug 16 09:33:40 kernel: [32521.739465]  [<c1127dfb>] ? submit_bio+0xbc/0xd6
Aug 16 09:33:40 kernel: [32521.756896]  [<c10cfa45>] ? bio_alloc_bioset+0x7b/0xba
Aug 16 09:33:40 kernel: [32521.774046]  [<f8917af0>] ? xfs_submit_ioend_bio+0x3b/0x44 [xfs]
Aug 16 09:33:40 kernel: [32521.790694]  [<f8917ba3>] ? xfs_submit_ioend+0xaa/0xc4 [xfs]
Aug 16 09:33:40 kernel: [32521.806736]  [<f891817d>] ? xfs_page_state_convert+0x5c0/0x61c [xfs]
Aug 16 09:33:40 kernel: [32521.822859]  [<c113705b>] ? __lookup_tag+0x8e/0xee
Aug 16 09:33:40 kernel: [32521.838958]  [<f891840d>] ? xfs_vm_writepage+0x91/0xc4 [xfs]
Aug 16 09:33:40 kernel: [32521.855039]  [<c108bbcc>] ? __writepage+0x8/0x22
Aug 16 09:33:40 kernel: [32521.871067]  [<c108c17b>] ? write_cache_pages+0x1af/0x29f
Aug 16 09:33:40 kernel: [32521.886616]  [<c108bbc4>] ? __writepage+0x0/0x22
Aug 16 09:33:40 kernel: [32521.901593]  [<c108c285>] ? generic_writepages+0x1a/0x21
Aug 16 09:33:40 kernel: [32521.916455]  [<f8918338>] ? xfs_vm_writepages+0x0/0x38 [xfs]
Aug 16 09:33:40 kernel: [32521.931484]  [<c108c2a5>] ? do_writepages+0x19/0x25
Aug 16 09:33:40 kernel: [32521.946648]  [<c10c80d9>] ? writeback_single_inode+0xc7/0x273
Aug 16 09:33:40 kernel: [32521.961675]  [<c10c8c44>] ? writeback_inodes_wb+0x3dd/0x49c
Aug 16 09:33:40 kernel: [32521.976831]  [<c10c8e18>] ? wb_writeback+0x115/0x178
Aug 16 09:33:40 kernel: [32521.991778]  [<c10c901f>] ? wb_do_writeback+0x121/0x131
Aug 16 09:33:40 kernel: [32522.006538]  [<c103abaf>] ? process_timeout+0x0/0x5
Aug 16 09:33:40 kernel: [32522.021091]  [<c10c9050>] ? bdi_writeback_task+0x21/0x89
Aug 16 09:33:40 kernel: [32522.035493]  [<c10979e5>] ? bdi_start_fn+0x59/0xa4
Aug 16 09:33:40 kernel: [32522.049765]  [<c109798c>] ? bdi_start_fn+0x0/0xa4
Aug 16 09:33:40 kernel: [32522.063792]  [<c1043588>] ? kthread+0x61/0x66
Aug 16 09:33:40 kernel: [32522.077612]  [<c1043527>] ? kthread+0x0/0x66
Aug 16 09:33:40 kernel: [32522.091260]  [<c1003d47>] ? kernel_thread_helper+0x7/0x10
Aug 16 09:33:40 kernel: [32522.104966] INFO: task smartctl:13098 blocked for more than 120 seconds.
Aug 16 09:33:40 kernel: [32522.118883] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 16 09:33:40 kernel: [32522.133012] smartctl      D 00000020     0 13098  13097 0x00000000
Aug 16 09:33:40 kernel: [32522.147221]  e50b9540 00000086 c11d28a8 00000020 00000770 c1418100 c1418100 c14136ac
Aug 16 09:33:40 kernel: [32522.161720]  e50b96fc c2808100 00000000 e53e8800 00000000 00000020 c3cec000 c13886c0
Aug 16 09:33:40 kernel: [32522.176217]  f99dab68 e50b96fc 007a4f1e 00000001 c4082f24 c4082ed8 00000001 c3c3f0e0
Aug 16 09:33:40 kernel: [32522.190737] Call Trace:
Aug 16 09:33:40 kernel: [32522.205038]  [<c11d28a8>] ? __netdev_alloc_skb+0x14/0x2d
Aug 16 09:33:40 kernel: [32522.219605]  [<c126b799>] ? schedule_timeout+0x20/0xb0
Aug 16 09:33:40 kernel: [32522.234144]  [<c112820d>] ? blk_peek_request+0x112/0x143
Aug 16 09:33:40 kernel: [32522.248649]  [<f85873b6>] ? scsi_request_fn+0x3c1/0x47a [scsi_mod]
Aug 16 09:33:40 kernel: [32522.263233]  [<c103aba8>] ? del_timer+0x55/0x5c
Aug 16 09:33:40 kernel: [32522.277773]  [<c126b6a2>] ? wait_for_common+0xa4/0x100
Aug 16 09:33:40 kernel: [32522.292342]  [<c102cd8d>] ? default_wake_function+0x0/0x8
Aug 16 09:33:40 kernel: [32522.306958]  [<c112b3d1>] ? blk_execute_rq+0x8b/0xb2
Aug 16 09:33:40 kernel: [32522.321569]  [<c112b2ac>] ? blk_end_sync_rq+0x0/0x23
Aug 16 09:33:40 kernel: [32522.336070]  [<c112b58b>] ? blk_recount_segments+0x13/0x20
Aug 16 09:33:40 kernel: [32522.350583]  [<c1127307>] ? blk_rq_bio_prep+0x44/0x74
Aug 16 09:33:40 kernel: [32522.365059]  [<c112b0b2>] ? blk_rq_map_kern+0xc5/0xee
Aug 16 09:33:40 kernel: [32522.379439]  [<c112e2a5>] ? sg_scsi_ioctl+0x221/0x2aa
Aug 16 09:33:40 kernel: [32522.393801]  [<c112e672>] ? scsi_cmd_ioctl+0x344/0x39a
Aug 16 09:33:40 kernel: [32522.408140]  [<c1024c87>] ? update_curr+0x106/0x1b3
Aug 16 09:33:40 kernel: [32522.422566]  [<c1024c87>] ? update_curr+0x106/0x1b3
Aug 16 09:33:40 kernel: [32522.436832]  [<f87676aa>] ? sd_ioctl+0x90/0xb5 [sd_mod]
Aug 16 09:33:40 kernel: [32522.451228]  [<c112c35f>] ? __blkdev_driver_ioctl+0x53/0x63
Aug 16 09:33:40 kernel: [32522.465689]  [<c112cbbf>] ? blkdev_ioctl+0x850/0x891
Aug 16 09:33:40 kernel: [32522.479982]  [<c1020474>] ? __wake_up_common+0x34/0x59
Aug 16 09:33:40 kernel: [32522.494138]  [<c10244cd>] ? complete+0x28/0x36
Aug 16 09:33:40 kernel: [32522.507986]  [<c1086c64>] ? find_get_page+0x1f/0x81
Aug 16 09:33:40 kernel: [32522.521671]  [<c10abed5>] ? add_partial+0xe/0x40
Aug 16 09:33:40 kernel: [32522.535285]  [<c1086e68>] ? lock_page+0x8/0x1d
Aug 16 09:33:40 kernel: [32522.548797]  [<c1087432>] ? filemap_fault+0xb5/0x2e6
Aug 16 09:33:40 kernel: [32522.562141]  [<c109941c>] ? __do_fault+0x381/0x3b1
Aug 16 09:33:40 kernel: [32522.575441]  [<c10d0c30>] ? block_ioctl+0x27/0x2c
Aug 16 09:33:40 kernel: [32522.588708]  [<c10d0c09>] ? block_ioctl+0x0/0x2c
Aug 16 09:33:40 kernel: [32522.601858]  [<c10bcd78>] ? vfs_ioctl+0x1c/0x5f
Aug 16 09:33:40 kernel: [32522.614917]  [<c10bd30c>] ? do_vfs_ioctl+0x4aa/0x4e5
Aug 16 09:33:40 kernel: [32522.627961]  [<c10350db>] ? __do_softirq+0x115/0x151
Aug 16 09:33:40 kernel: [32522.640901]  [<c126e270>] ? do_page_fault+0x2f1/0x307
Aug 16 09:33:40 kernel: [32522.653803]  [<c10bd388>] ? sys_ioctl+0x41/0x58
Aug 16 09:33:40 kernel: [32522.666674]  [<c10030fb>] ? sysenter_do_call+0x12/0x28

Então, novamente, algumas mensagens reset high speed USB device using ehci_hcd and address 2 .

Naveguei e li relatórios de erros semelhantes aqui e lá e eu tentei:

• Eu atualizei o kernel da v2.6.26-2 para a 2.6.32-5, o que não resolveu o problema.
• Eles dizem que isso pode ser um problema no cabo. Eu tentei substituir o cabo USB para miniUSB (que conecta a unidade externa com o computador) por outro. Nenhuma alteração.
• Alguém sugere tentar outra porta USB. Eu tenho apenas 4 portas USB externas, tentei outra sem sucesso.
• Eles dizem para tentar uhci_hcd . Desmontei o dispositivo, descarreguei ehci_hcd e montei novamente. A diferença foi que agora no log eu recebo reset full speed USB device using uhci_hcd and address 2 e dump de kernel similar depois de um tempo.
• Dizem para echo 128 > /sys/block/sdb/device/max_sectors . Eu tentei com ehci_hcd sem sucesso (nota: Eu emiti este comando depois que a unidade foi montada, mas antes de usá-la ativamente).
• Eu aumentei smartmond e verifiquei periodicamente a saída de smartctl : a temperatura do inversor está OK, o número de setores defeituosos e erros incorrigíveis é 0.

Nada suspeito é relatado por S.M.A.R.T. exceto talvez o seguinte:

Aug 16 12:40:12 kernel: [43715.314566] program smartctl is using a deprecated SCSI ioctl, please convert it to SG_IO
Aug 16 12:40:13 kernel: [43715.705622] program smartctl is using a deprecated SCSI ioctl, please convert it to SG_IO  

Claro, eu não tentei todas as combinações acima. Mas infelizmente, estou sem ideias cardeais. Se alguém puder sugerir algo específico sobre o problema, você é muito bem-vindo.

    

Answer 1

• Verifique / altere o cabo USB
• Experimente outra porta USB
• Tente reduzir o número de setores para ler / gravar no dispositivo (consulte Perguntas frequentes sobre o Linux USB ) : %código%
• Desative o módulo echo 16 > /sys/block/sdb/device/max_sectors ( isso fará o downgrade do USB de 2.0 para 1.1 ): %código%

Parece que é um problema de energia / hardware ou um erro em ehci_hcd . Leitura adicional:

• O disco trava; redefinir dispositivo USB de alta velocidade usando ehci_hcd e endereço 2
• " redefinir dispositivo USB de alta velocidade usando ehci_hcd e endereço 3 "no seu syslog e o que foi corrigido para mim