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  1. Bug #1415859
  2. Activity log

Activity log for bug #1415859

Date Who What changed Old value New value Message
2015-01-29 11:48:28 Lenz Grimmer bug added bug
2015-01-29 11:48:28 Lenz Grimmer attachment added Output of lspic -vnvn https://bugs.launchpad.net/bugs/1415859/+attachment/4307841/+files/lspci-vnvn.log
2015-01-29 11:49:06 Lenz Grimmer attachment added Output of lsusb -v https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1415859/+attachment/4307842/+files/lsusb.log
2015-01-29 12:00:12 Brad Figg linux (Ubuntu): status New Incomplete
2015-01-29 12:00:15 Brad Figg tags trusty
2015-01-29 12:21:14 Lenz Grimmer tags trusty apport-collected trusty
2015-01-29 12:21:16 Lenz Grimmer description I discovered this bug while trying to dd a potentially corrupt Btrfs file system to an external hard disk (see #1415510 for details). Unfortunately "ubuntu-bug" refused to file this report, as I'm running the mainline kernel (as requested in the other bug report). I'm running Linux 3.19.0-031900rc6-generic (x86_64) in Ubuntu Trusty on an IBM Thinkpad T440. I am using an external 4TB Samsung USB3 hard disk drive for backup purposes. % cat /proc/version Linux version 3.19.0-031900rc6-generic (kernel@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201501261152 SMP Mon Jan 26 16:53:27 UTC 2015 When trying to dd the content of a logical volume into an image file on the external disk drive (/dev/sdc1, formatted using ext4), the kernel immediately begins to throw I/O Errors: % sudo dd bs=8k if=/dev/mapper/ubuntu--vg-container of=/media/lenz/e2a4dc71-4c96-4dab-982c-29918e556afd/vg-container.img Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.321122] usb 2-1: new SuperSpeed USB device number 5 using xhci_hcd Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337777] usb 2-1: New USB device found, idVendor=04e8, idProduct=6125 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337781] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337783] usb 2-1: Product: D3 Station Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337785] usb 2-1: Manufacturer: Samsung Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337786] usb 2-1: SerialNumber: 00000000011E0A49 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.352472] usb-storage 2-1:1.0: USB Mass Storage device detected Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.352561] scsi host3: usb-storage 2-1:1.0 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.352644] usbcore: registered new interface driver usb-storage Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.354202] usbcore: registered new interface driver uas Jan 29 12:18:11 lenz-ThinkPad-T440 kernel: [ 521.349445] scsi 3:0:0:0: Direct-Access Samsung D3 Station 0202 PQ: 0 ANSI: 6 Jan 29 12:18:11 lenz-ThinkPad-T440 kernel: [ 521.349740] sd 3:0:0:0: Attached scsi generic sg2 type 0 Jan 29 12:18:11 lenz-ThinkPad-T440 kernel: [ 521.351547] sd 3:0:0:0: [sdc] Spinning up disk... Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 526.766731] .......ready Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.788913] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.789457] sd 3:0:0:0: [sdc] Write Protect is off Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.789459] sd 3:0:0:0: [sdc] Mode Sense: 2b 00 10 08 Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.789992] sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.790315] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.813839] sdc: sdc1 Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.814333] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.843305] sd 3:0:0:0: [sdc] Attached SCSI disk Jan 29 12:18:23 lenz-ThinkPad-T440 kernel: [ 533.145443] EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts: (null) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192217] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192222] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192223] Write(10): 2a 00 01 a7 a4 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192230] blk_update_request: I/O error, dev sdc, sector 222109696 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192236] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27763968) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192239] Buffer I/O error on device sdc1, logical block 27763456 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192242] Buffer I/O error on device sdc1, logical block 27763457 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192244] Buffer I/O error on device sdc1, logical block 27763458 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192245] Buffer I/O error on device sdc1, logical block 27763459 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192247] Buffer I/O error on device sdc1, logical block 27763460 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192248] Buffer I/O error on device sdc1, logical block 27763461 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192249] Buffer I/O error on device sdc1, logical block 27763462 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192251] Buffer I/O error on device sdc1, logical block 27763463 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192252] Buffer I/O error on device sdc1, logical block 27763464 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192254] Buffer I/O error on device sdc1, logical block 27763465 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192336] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764224) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192412] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764480) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192486] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764736) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192561] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764992) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192637] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27765248) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192717] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27765504) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192787] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27765760) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192856] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27766016) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192928] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27766272) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236033] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236038] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236039] Write(10): 2a 00 01 a7 e0 00 00 21 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236047] blk_update_request: I/O error, dev sdc, sector 222232576 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759490] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759522] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759527] Write(10): 2a 00 01 a8 9d 00 00 34 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759538] blk_update_request: I/O error, dev sdc, sector 222619648 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792110] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792114] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792116] Write(10): 2a 00 01 a8 d1 00 00 34 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792123] blk_update_request: I/O error, dev sdc, sector 222726144 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.827998] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.828003] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.828004] Write(10): 2a 00 01 a9 05 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.828011] blk_update_request: I/O error, dev sdc, sector 222832640 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868047] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868052] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868053] Write(10): 2a 00 01 a9 41 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868060] blk_update_request: I/O error, dev sdc, sector 222955520 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904054] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904058] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904059] Write(10): 2a 00 01 a9 7d 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904066] blk_update_request: I/O error, dev sdc, sector 223078400 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948161] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948165] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948167] Write(10): 2a 00 01 a9 b9 00 00 3c 00 00 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948174] blk_update_request: I/O error, dev sdc, sector 223201280 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119910] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119916] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119919] Write(10): 2a 00 01 aa 09 00 00 3c 00 00 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119928] blk_update_request: I/O error, dev sdc, sector 223365120 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163964] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163970] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163973] Write(10): 2a 00 01 aa 45 00 00 3c 00 00 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163983] blk_update_request: I/O error, dev sdc, sector 223488000 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053115] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053121] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053123] Write(10): 2a 00 01 aa a0 5c 00 34 00 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053132] blk_update_request: I/O error, dev sdc, sector 223675104 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053137] EXT4-fs warning: 547 callbacks suppressed Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053140] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 703971328 size 671744 starting block 27959552) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053144] buffer_io_error: 142582 callbacks suppressed Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053146] Buffer I/O error on device sdc1, logical block 27959132 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053150] Buffer I/O error on device sdc1, logical block 27959133 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053152] Buffer I/O error on device sdc1, logical block 27959134 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053154] Buffer I/O error on device sdc1, logical block 27959135 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053157] Buffer I/O error on device sdc1, logical block 27959136 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053159] Buffer I/O error on device sdc1, logical block 27959137 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053162] Buffer I/O error on device sdc1, logical block 27959138 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053164] Buffer I/O error on device sdc1, logical block 27959139 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053167] Buffer I/O error on device sdc1, logical block 27959140 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053169] Buffer I/O error on device sdc1, logical block 27959141 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053250] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27959808) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053364] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960064) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053477] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960320) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053586] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960576) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053696] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960832) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053805] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27961088) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053915] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27961344) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.054019] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27961600) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.054210] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 713031680 size 8388608 starting block 27961856) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097102] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097106] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097108] Write(10): 2a 00 01 aa d4 5c 00 34 00 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097115] blk_update_request: I/O error, dev sdc, sector 223781600 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137353] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137357] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137359] Write(10): 2a 00 01 ab 08 5c 00 3b a4 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137366] blk_update_request: I/O error, dev sdc, sector 223888096 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.176987] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.176991] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.176993] Write(10): 2a 00 01 ab 44 00 00 3c 00 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.177000] blk_update_request: I/O error, dev sdc, sector 224010240 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216930] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216935] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216937] Write(10): 2a 00 01 ab 80 00 00 23 1c 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216943] blk_update_request: I/O error, dev sdc, sector 224133120 This seems to be a regression in the mainline Kernel, as the default kernel (3.13.0-44-generic) performed this dd operation without issues - but it seems to be using a different USB driver for the disk: Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.440600] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457727] usb 3-1: New USB device found, idVendor=04e8, idProduct=6125 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457737] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457741] usb 3-1: Product: D3 Station Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457745] usb 3-1: Manufacturer: Samsung Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457749] usb 3-1: SerialNumber: 00000000011E0A49 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.476665] usb-storage 3-1:1.0: USB Mass Storage device detected Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.476777] scsi3 : usb-storage 3-1:1.0 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.477201] usbcore: registered new interface driver usb-storage Jan 29 11:38:14 lenz-ThinkPad-T440 kernel: [ 146.477555] scsi 3:0:0:0: Direct-Access Samsung D3 Station 0202 PQ: 0 ANSI: 6 Jan 29 11:38:14 lenz-ThinkPad-T440 kernel: [ 146.478329] sd 3:0:0:0: Attached scsi generic sg2 type 0 Jan 29 11:38:14 lenz-ThinkPad-T440 kernel: [ 146.479586] sd 3:0:0:0: [sdc] Spinning up disk... Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 151.993125] ......ready Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.014200] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.014797] sd 3:0:0:0: [sdc] Write Protect is off Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.014807] sd 3:0:0:0: [sdc] Mode Sense: 2b 00 10 08 Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.015382] sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.015967] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.041599] sdc: sdc1 Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.042036] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.043099] sd 3:0:0:0: [sdc] Attached SCSI disk Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.375933] EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts: (null) Another (probably unrelated) observation: even if the file system is just mounted and idle (no processes accessing it), the disk drive LED shows activity. "iostat 3 /dev/sdc" reveals that something seems to be writing to the disk continuously: avg-cpu: %user %nice %system %iowait %steal %idle 2,85 0,00 0,67 1,43 0,00 95,05 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdc 5,33 0,00 4782,67 0 14348 avg-cpu: %user %nice %system %iowait %steal %idle 2,35 0,00 0,84 1,34 0,00 95,47 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdc 5,00 0,00 4781,33 0 14344 avg-cpu: %user %nice %system %iowait %steal %idle 4,85 0,00 0,75 1,34 0,00 93,05 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdc 4,33 0,00 4097,33 0 12292 I discovered this bug while trying to dd a potentially corrupt Btrfs file system to an external hard disk (see #1415510 for details). Unfortunately "ubuntu-bug" refused to file this report, as I'm running the mainline kernel (as requested in the other bug report). I'm running Linux 3.19.0-031900rc6-generic (x86_64) in Ubuntu Trusty on an IBM Thinkpad T440. I am using an external 4TB Samsung USB3 hard disk drive for backup purposes. % cat /proc/version Linux version 3.19.0-031900rc6-generic (kernel@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201501261152 SMP Mon Jan 26 16:53:27 UTC 2015 When trying to dd the content of a logical volume into an image file on the external disk drive (/dev/sdc1, formatted using ext4), the kernel immediately begins to throw I/O Errors: % sudo dd bs=8k if=/dev/mapper/ubuntu--vg-container of=/media/lenz/e2a4dc71-4c96-4dab-982c-29918e556afd/vg-container.img Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.321122] usb 2-1: new SuperSpeed USB device number 5 using xhci_hcd Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337777] usb 2-1: New USB device found, idVendor=04e8, idProduct=6125 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337781] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337783] usb 2-1: Product: D3 Station Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337785] usb 2-1: Manufacturer: Samsung Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.337786] usb 2-1: SerialNumber: 00000000011E0A49 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.352472] usb-storage 2-1:1.0: USB Mass Storage device detected Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.352561] scsi host3: usb-storage 2-1:1.0 Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.352644] usbcore: registered new interface driver usb-storage Jan 29 12:18:10 lenz-ThinkPad-T440 kernel: [ 520.354202] usbcore: registered new interface driver uas Jan 29 12:18:11 lenz-ThinkPad-T440 kernel: [ 521.349445] scsi 3:0:0:0: Direct-Access Samsung D3 Station 0202 PQ: 0 ANSI: 6 Jan 29 12:18:11 lenz-ThinkPad-T440 kernel: [ 521.349740] sd 3:0:0:0: Attached scsi generic sg2 type 0 Jan 29 12:18:11 lenz-ThinkPad-T440 kernel: [ 521.351547] sd 3:0:0:0: [sdc] Spinning up disk... Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 526.766731] .......ready Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.788913] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.789457] sd 3:0:0:0: [sdc] Write Protect is off Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.789459] sd 3:0:0:0: [sdc] Mode Sense: 2b 00 10 08 Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.789992] sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.790315] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.813839] sdc: sdc1 Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.814333] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 12:18:22 lenz-ThinkPad-T440 kernel: [ 532.843305] sd 3:0:0:0: [sdc] Attached SCSI disk Jan 29 12:18:23 lenz-ThinkPad-T440 kernel: [ 533.145443] EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts: (null) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192217] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192222] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192223] Write(10): 2a 00 01 a7 a4 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192230] blk_update_request: I/O error, dev sdc, sector 222109696 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192236] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27763968) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192239] Buffer I/O error on device sdc1, logical block 27763456 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192242] Buffer I/O error on device sdc1, logical block 27763457 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192244] Buffer I/O error on device sdc1, logical block 27763458 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192245] Buffer I/O error on device sdc1, logical block 27763459 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192247] Buffer I/O error on device sdc1, logical block 27763460 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192248] Buffer I/O error on device sdc1, logical block 27763461 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192249] Buffer I/O error on device sdc1, logical block 27763462 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192251] Buffer I/O error on device sdc1, logical block 27763463 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192252] Buffer I/O error on device sdc1, logical block 27763464 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192254] Buffer I/O error on device sdc1, logical block 27763465 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192336] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764224) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192412] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764480) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192486] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764736) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192561] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 33554432 size 8388608 starting block 27764992) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192637] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27765248) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192717] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27765504) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192787] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27765760) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192856] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27766016) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.192928] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 41943040 size 8388608 starting block 27766272) Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236033] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236038] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236039] Write(10): 2a 00 01 a7 e0 00 00 21 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.236047] blk_update_request: I/O error, dev sdc, sector 222232576 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759490] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759522] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759527] Write(10): 2a 00 01 a8 9d 00 00 34 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.759538] blk_update_request: I/O error, dev sdc, sector 222619648 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792110] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792114] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792116] Write(10): 2a 00 01 a8 d1 00 00 34 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.792123] blk_update_request: I/O error, dev sdc, sector 222726144 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.827998] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.828003] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.828004] Write(10): 2a 00 01 a9 05 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.828011] blk_update_request: I/O error, dev sdc, sector 222832640 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868047] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868052] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868053] Write(10): 2a 00 01 a9 41 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.868060] blk_update_request: I/O error, dev sdc, sector 222955520 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904054] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904058] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904059] Write(10): 2a 00 01 a9 7d 00 00 3c 00 00 Jan 29 12:18:58 lenz-ThinkPad-T440 kernel: [ 568.904066] blk_update_request: I/O error, dev sdc, sector 223078400 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948161] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948165] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948167] Write(10): 2a 00 01 a9 b9 00 00 3c 00 00 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 568.948174] blk_update_request: I/O error, dev sdc, sector 223201280 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119910] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119916] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119919] Write(10): 2a 00 01 aa 09 00 00 3c 00 00 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.119928] blk_update_request: I/O error, dev sdc, sector 223365120 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163964] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163970] sd 3:0:0:0: [sdc] CDB: Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163973] Write(10): 2a 00 01 aa 45 00 00 3c 00 00 Jan 29 12:18:59 lenz-ThinkPad-T440 kernel: [ 569.163983] blk_update_request: I/O error, dev sdc, sector 223488000 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053115] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053121] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053123] Write(10): 2a 00 01 aa a0 5c 00 34 00 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053132] blk_update_request: I/O error, dev sdc, sector 223675104 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053137] EXT4-fs warning: 547 callbacks suppressed Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053140] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 703971328 size 671744 starting block 27959552) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053144] buffer_io_error: 142582 callbacks suppressed Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053146] Buffer I/O error on device sdc1, logical block 27959132 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053150] Buffer I/O error on device sdc1, logical block 27959133 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053152] Buffer I/O error on device sdc1, logical block 27959134 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053154] Buffer I/O error on device sdc1, logical block 27959135 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053157] Buffer I/O error on device sdc1, logical block 27959136 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053159] Buffer I/O error on device sdc1, logical block 27959137 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053162] Buffer I/O error on device sdc1, logical block 27959138 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053164] Buffer I/O error on device sdc1, logical block 27959139 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053167] Buffer I/O error on device sdc1, logical block 27959140 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053169] Buffer I/O error on device sdc1, logical block 27959141 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053250] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27959808) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053364] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960064) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053477] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960320) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053586] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960576) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053696] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27960832) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053805] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27961088) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.053915] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27961344) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.054019] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 704643072 size 8388608 starting block 27961600) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.054210] EXT4-fs warning (device sdc1): ext4_end_bio:317: I/O error -5 writing to inode 13 (offset 713031680 size 8388608 starting block 27961856) Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097102] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097106] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097108] Write(10): 2a 00 01 aa d4 5c 00 34 00 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.097115] blk_update_request: I/O error, dev sdc, sector 223781600 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137353] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137357] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137359] Write(10): 2a 00 01 ab 08 5c 00 3b a4 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.137366] blk_update_request: I/O error, dev sdc, sector 223888096 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.176987] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.176991] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.176993] Write(10): 2a 00 01 ab 44 00 00 3c 00 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.177000] blk_update_request: I/O error, dev sdc, sector 224010240 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216930] sd 3:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216935] sd 3:0:0:0: [sdc] CDB: Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216937] Write(10): 2a 00 01 ab 80 00 00 23 1c 00 Jan 29 12:19:29 lenz-ThinkPad-T440 kernel: [ 599.216943] blk_update_request: I/O error, dev sdc, sector 224133120 This seems to be a regression in the mainline Kernel, as the default kernel (3.13.0-44-generic) performed this dd operation without issues - but it seems to be using a different USB driver for the disk: Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.440600] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457727] usb 3-1: New USB device found, idVendor=04e8, idProduct=6125 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457737] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457741] usb 3-1: Product: D3 Station Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457745] usb 3-1: Manufacturer: Samsung Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.457749] usb 3-1: SerialNumber: 00000000011E0A49 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.476665] usb-storage 3-1:1.0: USB Mass Storage device detected Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.476777] scsi3 : usb-storage 3-1:1.0 Jan 29 11:38:13 lenz-ThinkPad-T440 kernel: [ 145.477201] usbcore: registered new interface driver usb-storage Jan 29 11:38:14 lenz-ThinkPad-T440 kernel: [ 146.477555] scsi 3:0:0:0: Direct-Access Samsung D3 Station 0202 PQ: 0 ANSI: 6 Jan 29 11:38:14 lenz-ThinkPad-T440 kernel: [ 146.478329] sd 3:0:0:0: Attached scsi generic sg2 type 0 Jan 29 11:38:14 lenz-ThinkPad-T440 kernel: [ 146.479586] sd 3:0:0:0: [sdc] Spinning up disk... Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 151.993125] ......ready Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.014200] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.014797] sd 3:0:0:0: [sdc] Write Protect is off Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.014807] sd 3:0:0:0: [sdc] Mode Sense: 2b 00 10 08 Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.015382] sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, supports DPO and FUA Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.015967] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.041599] sdc: sdc1 Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.042036] sd 3:0:0:0: [sdc] 976754645 4096-byte logical blocks: (4.00 TB/3.63 TiB) Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.043099] sd 3:0:0:0: [sdc] Attached SCSI disk Jan 29 11:38:25 lenz-ThinkPad-T440 kernel: [ 157.375933] EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts: (null) Another (probably unrelated) observation: even if the file system is just mounted and idle (no processes accessing it), the disk drive LED shows activity. "iostat 3 /dev/sdc" reveals that something seems to be writing to the disk continuously: avg-cpu: %user %nice %system %iowait %steal %idle 2,85 0,00 0,67 1,43 0,00 95,05 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdc 5,33 0,00 4782,67 0 14348 avg-cpu: %user %nice %system %iowait %steal %idle 2,35 0,00 0,84 1,34 0,00 95,47 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdc 5,00 0,00 4781,33 0 14344 avg-cpu: %user %nice %system %iowait %steal %idle 4,85 0,00 0,75 1,34 0,00 93,05 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdc 4,33 0,00 4097,33 0 12292 --- ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 InstallationDate: Installed on 2014-09-15 (136 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) Package: linux (not installed) Tags: trusty Uname: Linux 3.19.0-031900rc6-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip disk docker lpadmin plugdev sambashare sudo _MarkForUpload: True
2015-01-29 12:21:18 Lenz Grimmer attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1415859/+attachment/4307898/+files/ProcEnviron.txt
2015-01-29 12:23:04 Lenz Grimmer linux (Ubuntu): status Incomplete Confirmed
2015-01-29 17:25:56 Joseph Salisbury tags apport-collected trusty apport-collected kernel-da-key trusty
2015-01-29 17:26:52 Joseph Salisbury linux (Ubuntu): importance Undecided Medium
2015-03-02 10:00:17 penalvch linux (Ubuntu): status Confirmed Invalid