Hi! I was copying between two SD cards. One SDHC 32 GB and one SDXC 64 GB from Samsung. With rsync -aAHXSP and after a way I got this: ATOP - merkaba 2014/08/31 12:49:03 --------- 10s elapsed PRC | sys 5.11s | user 1.19s | #proc 327 | #tslpu 3 | #zombie 0 | no procacct | CPU | sys 70% | user 13% | irq 10% | idle 140% | wait 168% | curscal ?% | cpu | sys 29% | user 2% | irq 10% | idle 59% | cpu000 w 0% | curscal ?% | cpu | sys 17% | user 7% | irq 0% | idle 0% | cpu003 w 75% | curscal ?% | cpu | sys 17% | user 2% | irq 0% | idle 82% | cpu002 w 0% | curscal ?% | cpu | sys 7% | user 2% | irq 0% | idle 0% | cpu001 w 92% | curscal ?% | CPL | avg1 3.07 | avg5 2.69 | avg15 1.93 | csw 679567 | intr 344431 | numcpu 4 | MEM | tot 15.5G | free 551.8M | cache 10.7G | buff 20.1M | slab 1.3G | shmem 308.8M | SWP | tot 12.0G | free 11.2G | | | vmcom 6.0G | vmlim 19.7G | LVM | msata-debian | busy 0% | read 0 | write 4 | MBw/s 0.00 | avio 2.75 ms | LVM | sata-debian | busy 0% | read 0 | write 4 | MBw/s 0.00 | avio 0.25 ms | LVM | msata-home | busy 0% | read 0 | write 11 | MBw/s 0.00 | avio 0.00 ms | LVM | sata-home | busy 0% | read 0 | write 11 | MBw/s 0.00 | avio 0.00 ms | DSK | sdb | busy 0% | read 0 | write 9 | MBw/s 0.01 | avio 1.22 ms | DSK | sda | busy 0% | read 0 | write 9 | MBw/s 0.01 | avio 0.11 ms | NET | transport | tcpi 20 | tcpo 22 | udpi 0 | udpo 0 | tcpao 0 | NET | network | ipi 20 | ipo 22 | ipfrw 0 | deliv 20 | icmpo 0 | NET | eth0 0% | pcki 7 | pcko 9 | si 1 Kbps | so 1 Kbps | erro 0 | NET | lo ---- | pcki 14 | pcko 14 | si 3 Kbps | so 3 Kbps | erro 0 | PID TID SYSCPU USRCPU VGROW RGROW RUID EUID THR ST EXC S CPU CMD 1/2 22955 - 4.67s 0.00s 0K 0K root root 1 -- - D 48% mmcqd/0 It was using about 50% of one Sandybridge core for minutes. But I also got this: Aug 31 11:53:12 merkaba kernel: [220463.531770] mmc0: card 0001 removed Aug 31 11:53:13 merkaba kernel: [220464.458765] mmc0: new high speed SDXC card at address 0001 Aug 31 11:53:13 merkaba kernel: [220464.459361] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 11:53:13 merkaba kernel: [220464.460729] mmcblk0: p1 Aug 31 11:53:37 merkaba kernel: [220488.672502] mmc0: card 0001 removed Aug 31 11:53:38 merkaba kernel: [220489.502114] mmc0: new high speed SDXC card at address 0001 Aug 31 11:53:38 merkaba kernel: [220489.502698] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 11:53:38 merkaba kernel: [220489.503849] mmcblk0: p1 Aug 31 11:53:40 merkaba kernel: [220491.157022] FAT-fs (mmcblk0p1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! Aug 31 11:54:45 merkaba kernel: [220556.403446] mmc0: card 0001 removed Aug 31 11:57:46 merkaba kernel: [220737.878471] usb 1-1.1: USB disconnect, device number 7 Aug 31 11:57:47 merkaba kernel: [220738.142201] usb 1-1.1: new high-speed USB device number 8 using ehci-pci Aug 31 11:57:47 merkaba kernel: [220738.425552] usb 1-1.1: New USB device found, idVendor=1307, idProduct=0330 Aug 31 11:57:47 merkaba kernel: [220738.425567] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Aug 31 11:57:47 merkaba kernel: [220738.425574] usb 1-1.1: Product: Mass Storage Device Aug 31 11:57:47 merkaba kernel: [220738.425579] usb 1-1.1: Manufacturer: Generic Aug 31 11:57:47 merkaba kernel: [220738.425584] usb 1-1.1: SerialNumber: 00000000000006 Aug 31 11:57:47 merkaba kernel: [220738.426620] usb-storage 1-1.1:1.0: USB Mass Storage device detected Aug 31 11:57:47 merkaba kernel: [220738.427012] scsi host16: usb-storage 1-1.1:1.0 Aug 31 11:57:48 merkaba kernel: [220739.429572] scsi 16:0:0:0: Direct-Access Generic USB CF Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:48 merkaba kernel: [220739.430502] scsi 16:0:0:1: Direct-Access Generic USB SD Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:48 merkaba kernel: [220739.431049] scsi 16:0:0:2: Direct-Access Generic Mini SD Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:48 merkaba kernel: [220739.432062] scsi 16:0:0:3: Direct-Access Generic USB MS Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:48 merkaba kernel: [220739.460845] usb 1-1.1: USB disconnect, device number 8 Aug 31 11:57:48 merkaba kernel: [220739.467305] sd 16:0:0:0: [sdc] READ CAPACITY failed Aug 31 11:57:48 merkaba kernel: [220739.467321] sd 16:0:0:0: [sdc] Aug 31 11:57:48 merkaba kernel: [220739.467330] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Aug 31 11:57:48 merkaba kernel: [220739.467339] sd 16:0:0:0: [sdc] Sense not available. Aug 31 11:57:48 merkaba kernel: [220739.467405] sd 16:0:0:0: [sdc] Write Protect is off Aug 31 11:57:48 merkaba kernel: [220739.467417] sd 16:0:0:0: [sdc] Mode Sense: 2e 2e 2f 2e Aug 31 11:57:48 merkaba kernel: [220739.467478] sd 16:0:0:0: [sdc] No Caching mode page found Aug 31 11:57:48 merkaba kernel: [220739.467489] sd 16:0:0:0: [sdc] Assuming drive cache: write through Aug 31 11:57:48 merkaba kernel: [220739.467731] sd 16:0:0:0: Attached scsi generic sg3 type 0 Aug 31 11:57:48 merkaba kernel: [220739.469143] sd 16:0:0:0: [sdc] READ CAPACITY failed Aug 31 11:57:48 merkaba kernel: [220739.469164] sd 16:0:0:0: [sdc] Aug 31 11:57:48 merkaba kernel: [220739.469172] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Aug 31 11:57:48 merkaba kernel: [220739.469180] sd 16:0:0:0: [sdc] Sense not available. Aug 31 11:57:48 merkaba kernel: [220739.469290] sd 16:0:0:0: [sdc] Attached SCSI removable disk Aug 31 11:57:48 merkaba kernel: [220739.470851] sd 16:0:0:1: [sdd] READ CAPACITY failed Aug 31 11:57:48 merkaba kernel: [220739.470863] sd 16:0:0:1: [sdd] Aug 31 11:57:48 merkaba kernel: [220739.470870] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Aug 31 11:57:48 merkaba kernel: [220739.470878] sd 16:0:0:1: [sdd] Sense not available. Aug 31 11:57:48 merkaba kernel: [220739.470940] sd 16:0:0:1: [sdd] Write Protect is off Aug 31 11:57:48 merkaba kernel: [220739.470952] sd 16:0:0:1: [sdd] Mode Sense: 00 00 00 00 Aug 31 11:57:48 merkaba kernel: [220739.471009] sd 16:0:0:1: [sdd] Asking for cache data failed Aug 31 11:57:48 merkaba kernel: [220739.471018] sd 16:0:0:1: [sdd] Assuming drive cache: write through Aug 31 11:57:48 merkaba kernel: [220739.471921] sd 16:0:0:1: Attached scsi generic sg4 type 0 Aug 31 11:57:48 merkaba kernel: [220739.472690] sd 16:0:0:1: [sdd] READ CAPACITY failed Aug 31 11:57:48 merkaba kernel: [220739.472700] sd 16:0:0:1: [sdd] Aug 31 11:57:48 merkaba kernel: [220739.472707] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Aug 31 11:57:48 merkaba kernel: [220739.472716] sd 16:0:0:1: [sdd] Sense not available. Aug 31 11:57:48 merkaba kernel: [220739.472818] sd 16:0:0:1: [sdd] Attached SCSI removable disk Aug 31 11:57:48 merkaba kernel: [220739.474166] sd 16:0:0:2: [sde] READ CAPACITY failed Aug 31 11:57:48 merkaba kernel: [220739.474178] sd 16:0:0:2: [sde] Aug 31 11:57:48 merkaba kernel: [220739.474185] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Aug 31 11:57:48 merkaba kernel: [220739.474194] sd 16:0:0:2: [sde] Sense not available. Aug 31 11:57:48 merkaba kernel: [220739.474253] sd 16:0:0:2: [sde] Write Protect is off Aug 31 11:57:48 merkaba kernel: [220739.474268] sd 16:0:0:2: [sde] Mode Sense: 00 00 00 00 Aug 31 11:57:48 merkaba kernel: [220739.474323] sd 16:0:0:2: [sde] Asking for cache data failed Aug 31 11:57:48 merkaba kernel: [220739.474333] sd 16:0:0:2: [sde] Assuming drive cache: write through Aug 31 11:57:48 merkaba kernel: [220739.474408] sd 16:0:0:2: Attached scsi generic sg5 type 0 Aug 31 11:57:48 merkaba kernel: [220739.475806] sd 16:0:0:3: [sdf] READ CAPACITY failed Aug 31 11:57:48 merkaba kernel: [220739.475817] sd 16:0:0:3: [sdf] Aug 31 11:57:48 merkaba kernel: [220739.475824] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Aug 31 11:57:48 merkaba kernel: [220739.475831] sd 16:0:0:3: [sdf] Sense not available. Aug 31 11:57:48 merkaba kernel: [220739.475888] sd 16:0:0:3: [sdf] Write Protect is off Aug 31 11:57:48 merkaba kernel: [220739.475898] sd 16:0:0:3: [sdf] Mode Sense: 00 00 00 00 Aug 31 11:57:48 merkaba kernel: [220739.475953] sd 16:0:0:3: [sdf] Asking for cache data failed Aug 31 11:57:48 merkaba kernel: [220739.475962] sd 16:0:0:3: [sdf] Assuming drive cache: write through Aug 31 11:57:48 merkaba kernel: [220739.476207] sd 16:0:0:3: Attached scsi generic sg6 type 0 Aug 31 11:57:48 merkaba kernel: [220739.477176] sd 16:0:0:3: [sdf] Attached SCSI removable disk Aug 31 11:57:48 merkaba kernel: [220739.477198] sd 16:0:0:2: [sde] Attached SCSI removable disk Aug 31 11:57:48 merkaba kernel: [220739.737383] usb 1-1.1: new high-speed USB device number 9 using ehci-pci Aug 31 11:57:49 merkaba kernel: [220740.020680] usb 1-1.1: New USB device found, idVendor=1307, idProduct=0330 Aug 31 11:57:49 merkaba kernel: [220740.020695] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Aug 31 11:57:49 merkaba kernel: [220740.020702] usb 1-1.1: Product: Mass Storage Device Aug 31 11:57:49 merkaba kernel: [220740.020708] usb 1-1.1: Manufacturer: Generic Aug 31 11:57:49 merkaba kernel: [220740.020713] usb 1-1.1: SerialNumber: 00000000000006 Aug 31 11:57:49 merkaba kernel: [220740.021293] usb-storage 1-1.1:1.0: USB Mass Storage device detected Aug 31 11:57:49 merkaba kernel: [220740.021488] scsi host17: usb-storage 1-1.1:1.0 Aug 31 11:57:49 merkaba kernel: [220740.182534] usb 1-1.1: USB disconnect, device number 9 Aug 31 11:57:49 merkaba kernel: [220740.360439] usb 1-1.1: new high-speed USB device number 10 using ehci-pci Aug 31 11:57:49 merkaba kernel: [220740.643728] usb 1-1.1: New USB device found, idVendor=1307, idProduct=0330 Aug 31 11:57:49 merkaba kernel: [220740.643743] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Aug 31 11:57:49 merkaba kernel: [220740.643749] usb 1-1.1: Product: Mass Storage Device Aug 31 11:57:49 merkaba kernel: [220740.643755] usb 1-1.1: Manufacturer: Generic Aug 31 11:57:49 merkaba kernel: [220740.643760] usb 1-1.1: SerialNumber: 00000000000006 Aug 31 11:57:49 merkaba kernel: [220740.644877] usb-storage 1-1.1:1.0: USB Mass Storage device detected Aug 31 11:57:49 merkaba kernel: [220740.646208] scsi host18: usb-storage 1-1.1:1.0 Aug 31 11:57:50 merkaba kernel: [220741.649819] scsi 18:0:0:0: Direct-Access Generic USB CF Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:51 merkaba kernel: [220742.317727] scsi 18:0:0:1: Direct-Access Generic USB SD Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:51 merkaba kernel: [220742.318751] scsi 18:0:0:2: Direct-Access Generic Mini SD Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:51 merkaba kernel: [220742.319435] scsi 18:0:0:3: Direct-Access Generic USB MS Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:51 merkaba kernel: [220742.320223] scsi 18:0:0:4: Direct-Access Generic USB SM Reader 0.00 PQ: 0 ANSI: 2 Aug 31 11:57:51 merkaba kernel: [220742.321937] sd 18:0:0:0: Attached scsi generic sg3 type 0 Aug 31 11:57:51 merkaba kernel: [220742.323850] sd 18:0:0:1: Attached scsi generic sg4 type 0 Aug 31 11:57:51 merkaba kernel: [220742.323914] sd 18:0:0:0: [sdc] Attached SCSI removable disk Aug 31 11:57:51 merkaba kernel: [220742.325800] sd 18:0:0:1: [sdd] 61405184 512-byte logical blocks: (31.4 GB/29.2 GiB) Aug 31 11:57:51 merkaba kernel: [220742.325935] sd 18:0:0:2: Attached scsi generic sg5 type 0 Aug 31 11:57:51 merkaba kernel: [220742.328802] sd 18:0:0:3: Attached scsi generic sg6 type 0 Aug 31 11:57:51 merkaba kernel: [220742.330279] sd 18:0:0:1: [sdd] Write Protect is off Aug 31 11:57:51 merkaba kernel: [220742.330293] sd 18:0:0:1: [sdd] Mode Sense: 03 00 00 00 Aug 31 11:57:51 merkaba kernel: [220742.332898] sd 18:0:0:4: Attached scsi generic sg7 type 0 Aug 31 11:57:51 merkaba kernel: [220742.333264] sd 18:0:0:1: [sdd] No Caching mode page found Aug 31 11:57:51 merkaba kernel: [220742.333273] sd 18:0:0:1: [sdd] Assuming drive cache: write through Aug 31 11:57:51 merkaba kernel: [220742.335744] sd 18:0:0:2: [sde] Attached SCSI removable disk Aug 31 11:57:51 merkaba kernel: [220742.336718] sd 18:0:0:3: [sdf] Attached SCSI removable disk Aug 31 11:57:51 merkaba kernel: [220742.338992] sd 18:0:0:4: [sdg] Attached SCSI removable disk Aug 31 11:57:51 merkaba kernel: [220742.342044] sdd: sdd1 Aug 31 11:57:51 merkaba kernel: [220742.345003] sd 18:0:0:1: [sdd] Attached SCSI removable disk Aug 31 11:57:53 merkaba kernel: [220744.479122] FAT-fs (sdd1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! Aug 31 11:57:53 merkaba kernel: [220744.484244] FAT-fs (sdd1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. Aug 31 11:58:49 merkaba kernel: [220800.742446] mmc0: new high speed SDXC card at address 0001 Aug 31 11:58:49 merkaba kernel: [220800.743085] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 11:58:49 merkaba kernel: [220800.744594] mmcblk0: p1 Aug 31 11:59:20 merkaba kernel: [220831.145228] mmcblk0: p1 Aug 31 11:59:24 merkaba kernel: [220835.009789] mmc0: card 0001 removed Aug 31 11:59:25 merkaba kernel: [220836.284842] mmc0: new high speed SDXC card at address 0001 Aug 31 11:59:25 merkaba kernel: [220836.286639] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 11:59:25 merkaba kernel: [220836.288585] mmcblk0: p1 Aug 31 11:59:27 merkaba kernel: [220838.571368] mmc0: card 0001 removed Aug 31 11:59:33 merkaba kernel: [220843.920698] mmc0: new high speed SDXC card at address 0001 Aug 31 11:59:33 merkaba kernel: [220843.921263] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 11:59:33 merkaba kernel: [220843.923166] mmcblk0: p1 Aug 31 11:59:37 merkaba kernel: [220848.007145] mmc0: card 0001 removed Aug 31 12:00:51 merkaba kernel: [220922.230763] mmc0: new high speed SDXC card at address 0001 Aug 31 12:00:51 merkaba kernel: [220922.231236] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 12:00:51 merkaba kernel: [220922.233383] mmcblk0: p1 Aug 31 12:01:02 merkaba kernel: [220933.459915] mmc0: card 0001 removed Aug 31 12:25:27 merkaba kernel: [222398.615363] mmc0: new high speed SDXC card at address 0001 Aug 31 12:25:27 merkaba kernel: [222398.616536] mmcblk0: mmc0:0001 00000 58.5 GiB Aug 31 12:25:27 merkaba kernel: [222398.618443] mmcblk0: p1 Aug 31 12:25:36 merkaba kernel: [222407.847608] FAT-fs (mmcblk0p1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! Aug 31 12:26:04 merkaba kernel: [222436.070279] Process accounting resumed Aug 31 12:42:46 merkaba kernel: [223437.833858] mmc0: Got data interrupt 0x00100000 even though no data operation was in progress. Aug 31 12:42:53 merkaba kernel: [223445.164431] mmc0: Timeout waiting for hardware interrupt. Aug 31 12:42:53 merkaba kernel: [223445.164616] mmcblk0: error -110 sending stop command, original cmd response 0x900, card status 0xe00 Aug 31 12:45:23 merkaba kernel: [223594.270408] INFO: task kworker/u8:1:22926 blocked for more than 120 seconds. Aug 31 12:45:23 merkaba kernel: [223594.270413] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:45:23 merkaba kernel: [223594.270414] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:45:23 merkaba kernel: [223594.270416] kworker/u8:1 D ffff8803586d3628 0 22926 2 0x00000000 Aug 31 12:45:23 merkaba kernel: [223594.270423] Workqueue: writeback bdi_writeback_workfn (flush-179:0) Aug 31 12:45:23 merkaba kernel: [223594.270426] ffff8803af307798 0000000000000002 ffff880407fc0000 ffff8803af307fd8 Aug 31 12:45:23 merkaba kernel: [223594.270428] ffff8803586d30e0 0000000000013240 ffff8803586d30e0 ffff88041e393240 Aug 31 12:45:23 merkaba kernel: [223594.270431] ffff880405186558 0000000000000000 ffff880405186558 ffff88014f744ea0 Aug 31 12:45:23 merkaba kernel: [223594.270433] Call Trace: Aug 31 12:45:23 merkaba kernel: [223594.270437] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:45:23 merkaba kernel: [223594.270439] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:45:23 merkaba kernel: [223594.270443] [<ffffffff811e163d>] get_request+0x4e0/0x561 Aug 31 12:45:23 merkaba kernel: [223594.270445] [<ffffffff811e74f9>] ? ll_back_merge_fn+0x2d/0x89 Aug 31 12:45:23 merkaba kernel: [223594.270449] [<ffffffff8106b727>] ? finish_wait+0x5d/0x5d Aug 31 12:45:23 merkaba kernel: [223594.270451] [<ffffffff811e403f>] blk_queue_bio+0x175/0x25c Aug 31 12:45:23 merkaba kernel: [223594.270453] [<ffffffff811e201e>] generic_make_request+0xb2/0xf9 Aug 31 12:45:23 merkaba kernel: [223594.270455] [<ffffffff811e2165>] submit_bio+0x100/0x10b Aug 31 12:45:23 merkaba kernel: [223594.270458] [<ffffffff81162efc>] __mpage_writepage+0x461/0x568 Aug 31 12:45:23 merkaba kernel: [223594.270462] [<ffffffff81215d6f>] ? __this_cpu_preempt_check+0x13/0x15 Aug 31 12:45:23 merkaba kernel: [223594.270464] [<ffffffff8121eb63>] ? __percpu_counter_add+0x8e/0xa8 Aug 31 12:45:23 merkaba kernel: [223594.270467] [<ffffffff810e752c>] ? __add_bdi_stat+0x2b/0x2d Aug 31 12:45:23 merkaba kernel: [223594.270469] [<ffffffff810e7c3d>] write_cache_pages+0x251/0x366 Aug 31 12:45:23 merkaba kernel: [223594.270471] [<ffffffff81162a9b>] ? clean_buffers+0x57/0x57 Aug 31 12:45:23 merkaba kernel: [223594.270477] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270479] [<ffffffff81162a05>] mpage_writepages+0x6e/0xad Aug 31 12:45:23 merkaba kernel: [223594.270483] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270486] [<ffffffffc080e7f6>] fat_writepages+0x10/0x12 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270489] [<ffffffffc080e7f6>] ? fat_writepages+0x10/0x12 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270491] [<ffffffff810e93ea>] do_writepages+0x1b/0x24 Aug 31 12:45:23 merkaba kernel: [223594.270494] [<ffffffff81156743>] __writeback_single_inode+0x58/0x212 Aug 31 12:45:23 merkaba kernel: [223594.270496] [<ffffffff81157645>] writeback_sb_inodes+0x1e9/0x32e Aug 31 12:45:23 merkaba kernel: [223594.270499] [<ffffffff81157804>] __writeback_inodes_wb+0x7a/0xb0 Aug 31 12:45:23 merkaba kernel: [223594.270501] [<ffffffff81157950>] wb_writeback+0x116/0x270 Aug 31 12:45:23 merkaba kernel: [223594.270504] [<ffffffff81157d3d>] bdi_writeback_workfn+0x1af/0x313 Aug 31 12:45:23 merkaba kernel: [223594.270508] [<ffffffff81051252>] process_one_work+0x15e/0x2a7 Aug 31 12:45:23 merkaba kernel: [223594.270510] [<ffffffff810517cf>] worker_thread+0x1f6/0x2a3 Aug 31 12:45:23 merkaba kernel: [223594.270512] [<ffffffff810515d9>] ? rescuer_thread+0x214/0x214 Aug 31 12:45:23 merkaba kernel: [223594.270514] [<ffffffff810551e2>] kthread+0xb2/0xba Aug 31 12:45:23 merkaba kernel: [223594.270517] [<ffffffff81480000>] ? dcbnl_newmsg+0x3/0xa0 Aug 31 12:45:23 merkaba kernel: [223594.270519] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:45:23 merkaba kernel: [223594.270522] [<ffffffff8148b6ac>] ret_from_fork+0x7c/0xb0 Aug 31 12:45:23 merkaba kernel: [223594.270523] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:45:23 merkaba kernel: [223594.270526] INFO: task rsync:23096 blocked for more than 120 seconds. Aug 31 12:45:23 merkaba kernel: [223594.270527] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:45:23 merkaba kernel: [223594.270529] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:45:23 merkaba kernel: [223594.270530] rsync D ffff8801bbcece98 0 23096 23095 0x00000004 Aug 31 12:45:23 merkaba kernel: [223594.270532] ffff8800c9d5f890 0000000000000002 ffff880407f64950 ffff8800c9d5ffd8 Aug 31 12:45:23 merkaba kernel: [223594.270534] ffff8801bbcec950 0000000000013240 ffff8801bbcec950 ffff88041e293240 Aug 31 12:45:23 merkaba kernel: [223594.270536] ffff88041e5c7550 ffff8800c9d5f940 ffffffff814887a1 0000000000000002 Aug 31 12:45:23 merkaba kernel: [223594.270539] Call Trace: Aug 31 12:45:23 merkaba kernel: [223594.270548] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:45:23 merkaba kernel: [223594.270550] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:45:23 merkaba kernel: [223594.270552] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:45:23 merkaba kernel: [223594.270553] [<ffffffff814887cc>] bit_wait_io+0x2b/0x37 Aug 31 12:45:23 merkaba kernel: [223594.270555] [<ffffffff8148881e>] __wait_on_bit+0x46/0x78 Aug 31 12:45:23 merkaba kernel: [223594.270557] [<ffffffff814888bc>] out_of_line_wait_on_bit+0x6c/0x77 Aug 31 12:45:23 merkaba kernel: [223594.270559] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:45:23 merkaba kernel: [223594.270561] [<ffffffff8106b756>] ? autoremove_wake_function+0x2f/0x2f Aug 31 12:45:23 merkaba kernel: [223594.270564] [<ffffffff8115c90c>] __wait_on_buffer+0x21/0x23 Aug 31 12:45:23 merkaba kernel: [223594.270566] [<ffffffff8115c927>] wait_on_buffer+0x19/0x1c Aug 31 12:45:23 merkaba kernel: [223594.270568] [<ffffffff8115d904>] __bread+0x55/0x6c Aug 31 12:45:23 merkaba kernel: [223594.270572] [<ffffffffc080d359>] fat_ent_bread+0x66/0xb0 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270575] [<ffffffffc080cefd>] fat_ent_read_block+0x4d/0x56 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270578] [<ffffffffc080d993>] fat_alloc_clusters+0x170/0x33a [fat] Aug 31 12:45:23 merkaba kernel: [223594.270581] [<ffffffff8115c412>] ? recalc_bh_state+0x13/0x96 Aug 31 12:45:23 merkaba kernel: [223594.270583] [<ffffffff8115c4f0>] ? alloc_buffer_head+0x5b/0x72 Aug 31 12:45:23 merkaba kernel: [223594.270587] [<ffffffffc080fa97>] fat_get_block+0x139/0x1c7 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270589] [<ffffffff8115ea45>] __block_write_begin+0x126/0x26a Aug 31 12:45:23 merkaba kernel: [223594.270592] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270595] [<ffffffff8115ebd0>] block_write_begin+0x47/0x71 Aug 31 12:45:23 merkaba kernel: [223594.270598] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270600] [<ffffffff8115ede1>] cont_write_begin+0x1e7/0x1f6 Aug 31 12:45:23 merkaba kernel: [223594.270604] [<ffffffffc080f5e4>] fat_write_begin+0x30/0x57 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270607] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:45:23 merkaba kernel: [223594.270610] [<ffffffff810df557>] generic_perform_write+0xb0/0x189 Aug 31 12:45:23 merkaba kernel: [223594.270613] [<ffffffff810e0f05>] __generic_file_write_iter+0x174/0x1b1 Aug 31 12:45:23 merkaba kernel: [223594.270615] [<ffffffff810e0f7e>] generic_file_write_iter+0x3c/0xa7 Aug 31 12:45:23 merkaba kernel: [223594.270619] [<ffffffff81135ff3>] new_sync_write+0x77/0x9b Aug 31 12:45:23 merkaba kernel: [223594.270622] [<ffffffff8113666a>] vfs_write+0xab/0x10d Aug 31 12:45:23 merkaba kernel: [223594.270624] [<ffffffff81136dc4>] SyS_write+0x48/0x73 Aug 31 12:45:23 merkaba kernel: [223594.270626] [<ffffffff8148b94b>] tracesys+0xdd/0xe2 Aug 31 12:47:23 merkaba kernel: [223714.285623] INFO: task kworker/u8:1:22926 blocked for more than 120 seconds. Aug 31 12:47:23 merkaba kernel: [223714.285627] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:47:23 merkaba kernel: [223714.285628] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:47:23 merkaba kernel: [223714.285630] kworker/u8:1 D ffff8803586d3628 0 22926 2 0x00000000 Aug 31 12:47:23 merkaba kernel: [223714.285645] Workqueue: writeback bdi_writeback_workfn (flush-179:0) Aug 31 12:47:23 merkaba kernel: [223714.285648] ffff8803af307798 0000000000000002 ffff880407fc0000 ffff8803af307fd8 Aug 31 12:47:23 merkaba kernel: [223714.285651] ffff8803586d30e0 0000000000013240 ffff8803586d30e0 ffff88041e393240 Aug 31 12:47:23 merkaba kernel: [223714.285653] ffff880405186558 0000000000000000 ffff880405186558 ffff88014f744ea0 Aug 31 12:47:23 merkaba kernel: [223714.285657] Call Trace: Aug 31 12:47:23 merkaba kernel: [223714.285662] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:47:23 merkaba kernel: [223714.285666] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:47:23 merkaba kernel: [223714.285671] [<ffffffff811e163d>] get_request+0x4e0/0x561 Aug 31 12:47:23 merkaba kernel: [223714.285675] [<ffffffff811e74f9>] ? ll_back_merge_fn+0x2d/0x89 Aug 31 12:47:23 merkaba kernel: [223714.285680] [<ffffffff8106b727>] ? finish_wait+0x5d/0x5d Aug 31 12:47:23 merkaba kernel: [223714.285682] [<ffffffff811e403f>] blk_queue_bio+0x175/0x25c Aug 31 12:47:23 merkaba kernel: [223714.285685] [<ffffffff811e201e>] generic_make_request+0xb2/0xf9 Aug 31 12:47:23 merkaba kernel: [223714.285687] [<ffffffff811e2165>] submit_bio+0x100/0x10b Aug 31 12:47:23 merkaba kernel: [223714.285691] [<ffffffff81162efc>] __mpage_writepage+0x461/0x568 Aug 31 12:47:23 merkaba kernel: [223714.285696] [<ffffffff81215d6f>] ? __this_cpu_preempt_check+0x13/0x15 Aug 31 12:47:23 merkaba kernel: [223714.285701] [<ffffffff8121eb63>] ? __percpu_counter_add+0x8e/0xa8 Aug 31 12:47:23 merkaba kernel: [223714.285706] [<ffffffff810e752c>] ? __add_bdi_stat+0x2b/0x2d Aug 31 12:47:23 merkaba kernel: [223714.285709] [<ffffffff810e7c3d>] write_cache_pages+0x251/0x366 Aug 31 12:47:23 merkaba kernel: [223714.285711] [<ffffffff81162a9b>] ? clean_buffers+0x57/0x57 Aug 31 12:47:23 merkaba kernel: [223714.285718] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285720] [<ffffffff81162a05>] mpage_writepages+0x6e/0xad Aug 31 12:47:23 merkaba kernel: [223714.285726] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285733] [<ffffffffc080e7f6>] fat_writepages+0x10/0x12 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285738] [<ffffffffc080e7f6>] ? fat_writepages+0x10/0x12 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285740] [<ffffffff810e93ea>] do_writepages+0x1b/0x24 Aug 31 12:47:23 merkaba kernel: [223714.285743] [<ffffffff81156743>] __writeback_single_inode+0x58/0x212 Aug 31 12:47:23 merkaba kernel: [223714.285746] [<ffffffff81157645>] writeback_sb_inodes+0x1e9/0x32e Aug 31 12:47:23 merkaba kernel: [223714.285749] [<ffffffff81157804>] __writeback_inodes_wb+0x7a/0xb0 Aug 31 12:47:23 merkaba kernel: [223714.285755] [<ffffffff81157950>] wb_writeback+0x116/0x270 Aug 31 12:47:23 merkaba kernel: [223714.285758] [<ffffffff81157d3d>] bdi_writeback_workfn+0x1af/0x313 Aug 31 12:47:23 merkaba kernel: [223714.285764] [<ffffffff81051252>] process_one_work+0x15e/0x2a7 Aug 31 12:47:23 merkaba kernel: [223714.285768] [<ffffffff810517cf>] worker_thread+0x1f6/0x2a3 Aug 31 12:47:23 merkaba kernel: [223714.285771] [<ffffffff810515d9>] ? rescuer_thread+0x214/0x214 Aug 31 12:47:23 merkaba kernel: [223714.285773] [<ffffffff810551e2>] kthread+0xb2/0xba Aug 31 12:47:23 merkaba kernel: [223714.285775] [<ffffffff81480000>] ? dcbnl_newmsg+0x3/0xa0 Aug 31 12:47:23 merkaba kernel: [223714.285777] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:47:23 merkaba kernel: [223714.285781] [<ffffffff8148b6ac>] ret_from_fork+0x7c/0xb0 Aug 31 12:47:23 merkaba kernel: [223714.285784] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:47:23 merkaba kernel: [223714.285790] INFO: task rsync:23096 blocked for more than 120 seconds. Aug 31 12:47:23 merkaba kernel: [223714.285792] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:47:23 merkaba kernel: [223714.285795] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:47:23 merkaba kernel: [223714.285797] rsync D ffff8801bbcece98 0 23096 23095 0x00000004 Aug 31 12:47:23 merkaba kernel: [223714.285800] ffff8800c9d5f890 0000000000000002 ffff880407f64950 ffff8800c9d5ffd8 Aug 31 12:47:23 merkaba kernel: [223714.285803] ffff8801bbcec950 0000000000013240 ffff8801bbcec950 ffff88041e293240 Aug 31 12:47:23 merkaba kernel: [223714.285805] ffff88041e5c7550 ffff8800c9d5f940 ffffffff814887a1 0000000000000002 Aug 31 12:47:23 merkaba kernel: [223714.285807] Call Trace: Aug 31 12:47:23 merkaba kernel: [223714.285810] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:47:23 merkaba kernel: [223714.285812] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:47:23 merkaba kernel: [223714.285815] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:47:23 merkaba kernel: [223714.285818] [<ffffffff814887cc>] bit_wait_io+0x2b/0x37 Aug 31 12:47:23 merkaba kernel: [223714.285822] [<ffffffff8148881e>] __wait_on_bit+0x46/0x78 Aug 31 12:47:23 merkaba kernel: [223714.285826] [<ffffffff814888bc>] out_of_line_wait_on_bit+0x6c/0x77 Aug 31 12:47:23 merkaba kernel: [223714.285829] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:47:23 merkaba kernel: [223714.285831] [<ffffffff8106b756>] ? autoremove_wake_function+0x2f/0x2f Aug 31 12:47:23 merkaba kernel: [223714.285834] [<ffffffff8115c90c>] __wait_on_buffer+0x21/0x23 Aug 31 12:47:23 merkaba kernel: [223714.285837] [<ffffffff8115c927>] wait_on_buffer+0x19/0x1c Aug 31 12:47:23 merkaba kernel: [223714.285839] [<ffffffff8115d904>] __bread+0x55/0x6c Aug 31 12:47:23 merkaba kernel: [223714.285844] [<ffffffffc080d359>] fat_ent_bread+0x66/0xb0 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285850] [<ffffffffc080cefd>] fat_ent_read_block+0x4d/0x56 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285856] [<ffffffffc080d993>] fat_alloc_clusters+0x170/0x33a [fat] Aug 31 12:47:23 merkaba kernel: [223714.285860] [<ffffffff8115c412>] ? recalc_bh_state+0x13/0x96 Aug 31 12:47:23 merkaba kernel: [223714.285862] [<ffffffff8115c4f0>] ? alloc_buffer_head+0x5b/0x72 Aug 31 12:47:23 merkaba kernel: [223714.285866] [<ffffffffc080fa97>] fat_get_block+0x139/0x1c7 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285869] [<ffffffff8115ea45>] __block_write_begin+0x126/0x26a Aug 31 12:47:23 merkaba kernel: [223714.285872] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285877] [<ffffffff8115ebd0>] block_write_begin+0x47/0x71 Aug 31 12:47:23 merkaba kernel: [223714.285881] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285886] [<ffffffff8115ede1>] cont_write_begin+0x1e7/0x1f6 Aug 31 12:47:23 merkaba kernel: [223714.285891] [<ffffffffc080f5e4>] fat_write_begin+0x30/0x57 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285894] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:47:23 merkaba kernel: [223714.285897] [<ffffffff810df557>] generic_perform_write+0xb0/0x189 Aug 31 12:47:23 merkaba kernel: [223714.285901] [<ffffffff810e0f05>] __generic_file_write_iter+0x174/0x1b1 Aug 31 12:47:23 merkaba kernel: [223714.285906] [<ffffffff810e0f7e>] generic_file_write_iter+0x3c/0xa7 Aug 31 12:47:23 merkaba kernel: [223714.285911] [<ffffffff81135ff3>] new_sync_write+0x77/0x9b Aug 31 12:47:23 merkaba kernel: [223714.285916] [<ffffffff8113666a>] vfs_write+0xab/0x10d Aug 31 12:47:23 merkaba kernel: [223714.285919] [<ffffffff81136dc4>] SyS_write+0x48/0x73 Aug 31 12:47:23 merkaba kernel: [223714.285922] [<ffffffff8148b94b>] tracesys+0xdd/0xe2 Aug 31 12:49:23 merkaba kernel: [223834.300830] INFO: task kworker/u8:1:22926 blocked for more than 120 seconds. Aug 31 12:49:23 merkaba kernel: [223834.300836] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:49:23 merkaba kernel: [223834.300840] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:49:23 merkaba kernel: [223834.300841] kworker/u8:1 D ffff8803586d3628 0 22926 2 0x00000000 Aug 31 12:49:23 merkaba kernel: [223834.300854] Workqueue: writeback bdi_writeback_workfn (flush-179:0) Aug 31 12:49:23 merkaba kernel: [223834.300857] ffff8803af307798 0000000000000002 ffff880407fc0000 ffff8803af307fd8 Aug 31 12:49:23 merkaba kernel: [223834.300860] ffff8803586d30e0 0000000000013240 ffff8803586d30e0 ffff88041e393240 Aug 31 12:49:23 merkaba kernel: [223834.300863] ffff880405186558 0000000000000000 ffff880405186558 ffff88014f744ea0 Aug 31 12:49:23 merkaba kernel: [223834.300867] Call Trace: Aug 31 12:49:23 merkaba kernel: [223834.300874] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:49:23 merkaba kernel: [223834.300880] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:49:23 merkaba kernel: [223834.300884] [<ffffffff811e163d>] get_request+0x4e0/0x561 Aug 31 12:49:23 merkaba kernel: [223834.300887] [<ffffffff811e74f9>] ? ll_back_merge_fn+0x2d/0x89 Aug 31 12:49:23 merkaba kernel: [223834.300891] [<ffffffff8106b727>] ? finish_wait+0x5d/0x5d Aug 31 12:49:23 merkaba kernel: [223834.300894] [<ffffffff811e403f>] blk_queue_bio+0x175/0x25c Aug 31 12:49:23 merkaba kernel: [223834.300898] [<ffffffff811e201e>] generic_make_request+0xb2/0xf9 Aug 31 12:49:23 merkaba kernel: [223834.300901] [<ffffffff811e2165>] submit_bio+0x100/0x10b Aug 31 12:49:23 merkaba kernel: [223834.300905] [<ffffffff81162efc>] __mpage_writepage+0x461/0x568 Aug 31 12:49:23 merkaba kernel: [223834.300912] [<ffffffff81215d6f>] ? __this_cpu_preempt_check+0x13/0x15 Aug 31 12:49:23 merkaba kernel: [223834.300915] [<ffffffff8121eb63>] ? __percpu_counter_add+0x8e/0xa8 Aug 31 12:49:23 merkaba kernel: [223834.300919] [<ffffffff810e752c>] ? __add_bdi_stat+0x2b/0x2d Aug 31 12:49:23 merkaba kernel: [223834.300921] [<ffffffff810e7c3d>] write_cache_pages+0x251/0x366 Aug 31 12:49:23 merkaba kernel: [223834.300923] [<ffffffff81162a9b>] ? clean_buffers+0x57/0x57 Aug 31 12:49:23 merkaba kernel: [223834.300932] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:49:23 merkaba kernel: [223834.300936] [<ffffffff81162a05>] mpage_writepages+0x6e/0xad Aug 31 12:49:23 merkaba kernel: [223834.300943] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:49:23 merkaba kernel: [223834.300948] [<ffffffffc080e7f6>] fat_writepages+0x10/0x12 [fat] Aug 31 12:49:23 merkaba kernel: [223834.300951] [<ffffffffc080e7f6>] ? fat_writepages+0x10/0x12 [fat] Aug 31 12:49:23 merkaba kernel: [223834.300954] [<ffffffff810e93ea>] do_writepages+0x1b/0x24 Aug 31 12:49:23 merkaba kernel: [223834.300957] [<ffffffff81156743>] __writeback_single_inode+0x58/0x212 Aug 31 12:49:23 merkaba kernel: [223834.300962] [<ffffffff81157645>] writeback_sb_inodes+0x1e9/0x32e Aug 31 12:49:23 merkaba kernel: [223834.300968] [<ffffffff81157804>] __writeback_inodes_wb+0x7a/0xb0 Aug 31 12:49:23 merkaba kernel: [223834.300974] [<ffffffff81157950>] wb_writeback+0x116/0x270 Aug 31 12:49:23 merkaba kernel: [223834.300978] [<ffffffff81157d3d>] bdi_writeback_workfn+0x1af/0x313 Aug 31 12:49:23 merkaba kernel: [223834.300981] [<ffffffff81051252>] process_one_work+0x15e/0x2a7 Aug 31 12:49:23 merkaba kernel: [223834.300984] [<ffffffff810517cf>] worker_thread+0x1f6/0x2a3 Aug 31 12:49:23 merkaba kernel: [223834.300986] [<ffffffff810515d9>] ? rescuer_thread+0x214/0x214 Aug 31 12:49:23 merkaba kernel: [223834.300989] [<ffffffff810551e2>] kthread+0xb2/0xba Aug 31 12:49:23 merkaba kernel: [223834.300994] [<ffffffff81480000>] ? dcbnl_newmsg+0x3/0xa0 Aug 31 12:49:23 merkaba kernel: [223834.300997] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:49:23 merkaba kernel: [223834.301002] [<ffffffff8148b6ac>] ret_from_fork+0x7c/0xb0 Aug 31 12:49:23 merkaba kernel: [223834.301005] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:49:23 merkaba kernel: [223834.301010] INFO: task rsync:23096 blocked for more than 120 seconds. Aug 31 12:49:23 merkaba kernel: [223834.301011] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:49:23 merkaba kernel: [223834.301013] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:49:23 merkaba kernel: [223834.301014] rsync D ffff8801bbcece98 0 23096 23095 0x00000004 Aug 31 12:49:23 merkaba kernel: [223834.301017] ffff8800c9d5f890 0000000000000002 ffff880407f64950 ffff8800c9d5ffd8 Aug 31 12:49:23 merkaba kernel: [223834.301019] ffff8801bbcec950 0000000000013240 ffff8801bbcec950 ffff88041e293240 Aug 31 12:49:23 merkaba kernel: [223834.301023] ffff88041e5c7550 ffff8800c9d5f940 ffffffff814887a1 0000000000000002 Aug 31 12:49:23 merkaba kernel: [223834.301027] Call Trace: Aug 31 12:49:23 merkaba kernel: [223834.301033] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:49:23 merkaba kernel: [223834.301036] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:49:23 merkaba kernel: [223834.301039] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:49:23 merkaba kernel: [223834.301041] [<ffffffff814887cc>] bit_wait_io+0x2b/0x37 Aug 31 12:49:23 merkaba kernel: [223834.301043] [<ffffffff8148881e>] __wait_on_bit+0x46/0x78 Aug 31 12:49:23 merkaba kernel: [223834.301045] [<ffffffff814888bc>] out_of_line_wait_on_bit+0x6c/0x77 Aug 31 12:49:23 merkaba kernel: [223834.301047] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:49:23 merkaba kernel: [223834.301050] [<ffffffff8106b756>] ? autoremove_wake_function+0x2f/0x2f Aug 31 12:49:23 merkaba kernel: [223834.301054] [<ffffffff8115c90c>] __wait_on_buffer+0x21/0x23 Aug 31 12:49:23 merkaba kernel: [223834.301058] [<ffffffff8115c927>] wait_on_buffer+0x19/0x1c Aug 31 12:49:23 merkaba kernel: [223834.301061] [<ffffffff8115d904>] __bread+0x55/0x6c Aug 31 12:49:23 merkaba kernel: [223834.301067] [<ffffffffc080d359>] fat_ent_bread+0x66/0xb0 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301072] [<ffffffffc080cefd>] fat_ent_read_block+0x4d/0x56 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301076] [<ffffffffc080d993>] fat_alloc_clusters+0x170/0x33a [fat] Aug 31 12:49:23 merkaba kernel: [223834.301079] [<ffffffff8115c412>] ? recalc_bh_state+0x13/0x96 Aug 31 12:49:23 merkaba kernel: [223834.301082] [<ffffffff8115c4f0>] ? alloc_buffer_head+0x5b/0x72 Aug 31 12:49:23 merkaba kernel: [223834.301088] [<ffffffffc080fa97>] fat_get_block+0x139/0x1c7 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301092] [<ffffffff8115ea45>] __block_write_begin+0x126/0x26a Aug 31 12:49:23 merkaba kernel: [223834.301101] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301104] [<ffffffff8115ebd0>] block_write_begin+0x47/0x71 Aug 31 12:49:23 merkaba kernel: [223834.301107] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301110] [<ffffffff8115ede1>] cont_write_begin+0x1e7/0x1f6 Aug 31 12:49:23 merkaba kernel: [223834.301115] [<ffffffffc080f5e4>] fat_write_begin+0x30/0x57 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301120] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:49:23 merkaba kernel: [223834.301128] [<ffffffff810df557>] generic_perform_write+0xb0/0x189 Aug 31 12:49:23 merkaba kernel: [223834.301132] [<ffffffff810e0f05>] __generic_file_write_iter+0x174/0x1b1 Aug 31 12:49:23 merkaba kernel: [223834.301135] [<ffffffff810e0f7e>] generic_file_write_iter+0x3c/0xa7 Aug 31 12:49:23 merkaba kernel: [223834.301138] [<ffffffff81135ff3>] new_sync_write+0x77/0x9b Aug 31 12:49:23 merkaba kernel: [223834.301142] [<ffffffff8113666a>] vfs_write+0xab/0x10d Aug 31 12:49:23 merkaba kernel: [223834.301144] [<ffffffff81136dc4>] SyS_write+0x48/0x73 Aug 31 12:49:23 merkaba kernel: [223834.301147] [<ffffffff8148b94b>] tracesys+0xdd/0xe2 Aug 31 12:49:25 merkaba kernel: [223836.678440] Process accounting resumed Aug 31 12:50:06 merkaba kernel: [223877.992999] Process accounting resumed Aug 31 12:51:23 merkaba kernel: [223954.316040] INFO: task kworker/u8:1:22926 blocked for more than 120 seconds. Aug 31 12:51:23 merkaba kernel: [223954.316045] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:51:23 merkaba kernel: [223954.316048] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:51:23 merkaba kernel: [223954.316051] kworker/u8:1 D ffff8803586d3628 0 22926 2 0x00000000 Aug 31 12:51:23 merkaba kernel: [223954.316061] Workqueue: writeback bdi_writeback_workfn (flush-179:0) Aug 31 12:51:23 merkaba kernel: [223954.316064] ffff8803af307798 0000000000000002 ffff880407fc0000 ffff8803af307fd8 Aug 31 12:51:23 merkaba kernel: [223954.316067] ffff8803586d30e0 0000000000013240 ffff8803586d30e0 ffff88041e393240 Aug 31 12:51:23 merkaba kernel: [223954.316070] ffff880405186558 0000000000000000 ffff880405186558 ffff88014f744ea0 Aug 31 12:51:23 merkaba kernel: [223954.316075] Call Trace: Aug 31 12:51:23 merkaba kernel: [223954.316083] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:51:23 merkaba kernel: [223954.316087] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:51:23 merkaba kernel: [223954.316090] [<ffffffff811e163d>] get_request+0x4e0/0x561 Aug 31 12:51:23 merkaba kernel: [223954.316093] [<ffffffff811e74f9>] ? ll_back_merge_fn+0x2d/0x89 Aug 31 12:51:23 merkaba kernel: [223954.316097] [<ffffffff8106b727>] ? finish_wait+0x5d/0x5d Aug 31 12:51:23 merkaba kernel: [223954.316100] [<ffffffff811e403f>] blk_queue_bio+0x175/0x25c Aug 31 12:51:23 merkaba kernel: [223954.316104] [<ffffffff811e201e>] generic_make_request+0xb2/0xf9 Aug 31 12:51:23 merkaba kernel: [223954.316107] [<ffffffff811e2165>] submit_bio+0x100/0x10b Aug 31 12:51:23 merkaba kernel: [223954.316113] [<ffffffff81162efc>] __mpage_writepage+0x461/0x568 Aug 31 12:51:23 merkaba kernel: [223954.316119] [<ffffffff81215d6f>] ? __this_cpu_preempt_check+0x13/0x15 Aug 31 12:51:23 merkaba kernel: [223954.316122] [<ffffffff8121eb63>] ? __percpu_counter_add+0x8e/0xa8 Aug 31 12:51:23 merkaba kernel: [223954.316125] [<ffffffff810e752c>] ? __add_bdi_stat+0x2b/0x2d Aug 31 12:51:23 merkaba kernel: [223954.316128] [<ffffffff810e7c3d>] write_cache_pages+0x251/0x366 Aug 31 12:51:23 merkaba kernel: [223954.316131] [<ffffffff81162a9b>] ? clean_buffers+0x57/0x57 Aug 31 12:51:23 merkaba kernel: [223954.316142] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316146] [<ffffffff81162a05>] mpage_writepages+0x6e/0xad Aug 31 12:51:23 merkaba kernel: [223954.316150] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316154] [<ffffffffc080e7f6>] fat_writepages+0x10/0x12 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316157] [<ffffffffc080e7f6>] ? fat_writepages+0x10/0x12 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316160] [<ffffffff810e93ea>] do_writepages+0x1b/0x24 Aug 31 12:51:23 merkaba kernel: [223954.316165] [<ffffffff81156743>] __writeback_single_inode+0x58/0x212 Aug 31 12:51:23 merkaba kernel: [223954.316170] [<ffffffff81157645>] writeback_sb_inodes+0x1e9/0x32e Aug 31 12:51:23 merkaba kernel: [223954.316175] [<ffffffff81157804>] __writeback_inodes_wb+0x7a/0xb0 Aug 31 12:51:23 merkaba kernel: [223954.316178] [<ffffffff81157950>] wb_writeback+0x116/0x270 Aug 31 12:51:23 merkaba kernel: [223954.316181] [<ffffffff81157d3d>] bdi_writeback_workfn+0x1af/0x313 Aug 31 12:51:23 merkaba kernel: [223954.316185] [<ffffffff81051252>] process_one_work+0x15e/0x2a7 Aug 31 12:51:23 merkaba kernel: [223954.316187] [<ffffffff810517cf>] worker_thread+0x1f6/0x2a3 Aug 31 12:51:23 merkaba kernel: [223954.316191] [<ffffffff810515d9>] ? rescuer_thread+0x214/0x214 Aug 31 12:51:23 merkaba kernel: [223954.316195] [<ffffffff810551e2>] kthread+0xb2/0xba Aug 31 12:51:23 merkaba kernel: [223954.316199] [<ffffffff81480000>] ? dcbnl_newmsg+0x3/0xa0 Aug 31 12:51:23 merkaba kernel: [223954.316203] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:51:23 merkaba kernel: [223954.316208] [<ffffffff8148b6ac>] ret_from_fork+0x7c/0xb0 Aug 31 12:51:23 merkaba kernel: [223954.316210] [<ffffffff81055130>] ? __kthread_parkme+0x62/0x62 Aug 31 12:51:23 merkaba kernel: [223954.316213] INFO: task rsync:23096 blocked for more than 120 seconds. Aug 31 12:51:23 merkaba kernel: [223954.316215] Tainted: G W O 3.17.0-rc2-tp520-fixcompwritehang+ #2 Aug 31 12:51:23 merkaba kernel: [223954.316216] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 31 12:51:23 merkaba kernel: [223954.316217] rsync D ffff8801bbcece98 0 23096 23095 0x00000004 Aug 31 12:51:23 merkaba kernel: [223954.316221] ffff8800c9d5f890 0000000000000002 ffff880407f64950 ffff8800c9d5ffd8 Aug 31 12:51:23 merkaba kernel: [223954.316226] ffff8801bbcec950 0000000000013240 ffff8801bbcec950 ffff88041e293240 Aug 31 12:51:23 merkaba kernel: [223954.316230] ffff88041e5c7550 ffff8800c9d5f940 ffffffff814887a1 0000000000000002 Aug 31 12:51:23 merkaba kernel: [223954.316236] Call Trace: Aug 31 12:51:23 merkaba kernel: [223954.316238] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:51:23 merkaba kernel: [223954.316240] [<ffffffff81488352>] schedule+0x64/0x66 Aug 31 12:51:23 merkaba kernel: [223954.316242] [<ffffffff814884d6>] io_schedule+0x57/0x76 Aug 31 12:51:23 merkaba kernel: [223954.316243] [<ffffffff814887cc>] bit_wait_io+0x2b/0x37 Aug 31 12:51:23 merkaba kernel: [223954.316245] [<ffffffff8148881e>] __wait_on_bit+0x46/0x78 Aug 31 12:51:23 merkaba kernel: [223954.316248] [<ffffffff814888bc>] out_of_line_wait_on_bit+0x6c/0x77 Aug 31 12:51:23 merkaba kernel: [223954.316251] [<ffffffff814887a1>] ? bit_wait+0x37/0x37 Aug 31 12:51:23 merkaba kernel: [223954.316255] [<ffffffff8106b756>] ? autoremove_wake_function+0x2f/0x2f Aug 31 12:51:23 merkaba kernel: [223954.316262] [<ffffffff8115c90c>] __wait_on_buffer+0x21/0x23 Aug 31 12:51:23 merkaba kernel: [223954.316266] [<ffffffff8115c927>] wait_on_buffer+0x19/0x1c Aug 31 12:51:23 merkaba kernel: [223954.316269] [<ffffffff8115d904>] __bread+0x55/0x6c Aug 31 12:51:23 merkaba kernel: [223954.316272] [<ffffffffc080d359>] fat_ent_bread+0x66/0xb0 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316276] [<ffffffffc080cefd>] fat_ent_read_block+0x4d/0x56 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316280] [<ffffffffc080d993>] fat_alloc_clusters+0x170/0x33a [fat] Aug 31 12:51:23 merkaba kernel: [223954.316285] [<ffffffff8115c412>] ? recalc_bh_state+0x13/0x96 Aug 31 12:51:23 merkaba kernel: [223954.316290] [<ffffffff8115c4f0>] ? alloc_buffer_head+0x5b/0x72 Aug 31 12:51:23 merkaba kernel: [223954.316296] [<ffffffffc080fa97>] fat_get_block+0x139/0x1c7 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316299] [<ffffffff8115ea45>] __block_write_begin+0x126/0x26a Aug 31 12:51:23 merkaba kernel: [223954.316303] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316306] [<ffffffff8115ebd0>] block_write_begin+0x47/0x71 Aug 31 12:51:23 merkaba kernel: [223954.316309] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316314] [<ffffffff8115ede1>] cont_write_begin+0x1e7/0x1f6 Aug 31 12:51:23 merkaba kernel: [223954.316320] [<ffffffffc080f5e4>] fat_write_begin+0x30/0x57 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316326] [<ffffffffc080f95e>] ? fat_attach+0xe3/0xe3 [fat] Aug 31 12:51:23 merkaba kernel: [223954.316329] [<ffffffff810df557>] generic_perform_write+0xb0/0x189 Aug 31 12:51:23 merkaba kernel: [223954.316333] [<ffffffff810e0f05>] __generic_file_write_iter+0x174/0x1b1 Aug 31 12:51:23 merkaba kernel: [223954.316336] [<ffffffff810e0f7e>] generic_file_write_iter+0x3c/0xa7 Aug 31 12:51:23 merkaba kernel: [223954.316342] [<ffffffff81135ff3>] new_sync_write+0x77/0x9b Aug 31 12:51:23 merkaba kernel: [223954.316347] [<ffffffff8113666a>] vfs_write+0xab/0x10d Aug 31 12:51:23 merkaba kernel: [223954.316353] [<ffffffff81136dc4>] SyS_write+0x48/0x73 Aug 31 12:51:23 merkaba kernel: [223954.316356] [<ffffffff8148b94b>] tracesys+0xdd/0xe2 Aug 31 12:52:53 merkaba kernel: [224045.241525] mmc0: Card stuck in programming state! mmcblk0 card_busy_detect Aug 31 12:52:53 merkaba kernel: [224045.241606] blk_update_request: 152 callbacks suppressed Aug 31 12:52:53 merkaba kernel: [224045.241608] end_request: I/O error, dev mmcblk0, sector 14220786 Aug 31 12:52:53 merkaba kernel: [224045.241612] end_request: I/O error, dev mmcblk0, sector 14220794 Aug 31 12:52:53 merkaba kernel: [224045.241614] end_request: I/O error, dev mmcblk0, sector 14220802 Aug 31 12:52:53 merkaba kernel: [224045.241616] end_request: I/O error, dev mmcblk0, sector 14220810 Aug 31 12:52:53 merkaba kernel: [224045.241617] end_request: I/O error, dev mmcblk0, sector 14220818 Aug 31 12:52:53 merkaba kernel: [224045.241619] end_request: I/O error, dev mmcblk0, sector 14220826 Aug 31 12:52:53 merkaba kernel: [224045.241620] end_request: I/O error, dev mmcblk0, sector 14220834 Aug 31 12:52:53 merkaba kernel: [224045.241622] end_request: I/O error, dev mmcblk0, sector 14220842 Aug 31 12:52:53 merkaba kernel: [224045.241623] end_request: I/O error, dev mmcblk0, sector 14220850 Aug 31 12:52:53 merkaba kernel: [224045.241625] end_request: I/O error, dev mmcblk0, sector 14220858 Aug 31 12:52:53 merkaba kernel: [224045.251745] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:53 merkaba kernel: [224045.251828] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:53 merkaba kernel: [224045.251863] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.261973] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:53 merkaba kernel: [224045.262057] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:53 merkaba kernel: [224045.262094] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.272221] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:53 merkaba kernel: [224045.272310] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:53 merkaba kernel: [224045.272347] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.282466] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:53 merkaba kernel: [224045.282555] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:53 merkaba kernel: [224045.282591] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.292712] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:53 merkaba kernel: [224045.292812] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:53 merkaba kernel: [224045.292848] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.302966] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:53 merkaba kernel: [224045.303049] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:53 merkaba kernel: [224045.303084] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.303186] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.303263] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.303341] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.303418] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 Aug 31 12:52:53 merkaba kernel: [224045.303497] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 Aug 31 12:52:54 merkaba kernel: [224045.303583] mmcblk0: timed out sending r/w cmd command, card status 0x400e00 Aug 31 12:52:54 merkaba kernel: [224045.303596] FAT-fs (mmcblk0p1): FAT read failed (blocknr 1764) Aug 31 12:52:54 merkaba kernel: [224045.313798] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:54 merkaba kernel: [224045.313941] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:54 merkaba kernel: [224045.313984] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:54 merkaba kernel: [224045.324094] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:54 merkaba kernel: [224045.324186] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:54 merkaba kernel: [224045.324220] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 Aug 31 12:52:54 merkaba kernel: [224045.334337] mmc0: Controller never released inhibit bit(s). Aug 31 12:52:54 merkaba kernel: [224045.334441] mmcblk0: error -5 sending status command, retrying Aug 31 12:52:54 merkaba kernel: [224045.334485] mmcblk0: timed out sending SET_BLOCK_COUNT command, card status 0x400e00 [a tone more of these] I will attach kern.log excerpt as it may be that bugzilla wordwraps these lines. Reader is Digisol 5 in 1 card reader which seems to be based on Transcend stuff: merkaba:~> lsusb | grep Transcend Bus 002 Device 007: ID 1307:0330 Transcend Information, Inc. 63-in-1 Multi-Card Reader/Writer and has Samsung MB-MPBGC (I think), a 32 GB MicroSDHC card which I think does USH-I as well equipped. Writer is internal SD card slot in ThinkPad T520: merkaba:~> lspci -nn | grep MMC 0d:00.0 System peripheral [0880]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822] (rev 08) and has Samsung Memory MB-MP64D 64GB EVO MicroSDXC UHS-I Grade Class 10 MicroSDXC equipped. The card readers may or may not be capable to use UHS-1. I bet they are not, at least the ThinkPad T520 one Both cards use manufacturer partitioning. The 64 GB one I have reformatted from ExFAT to FAT32 with default settings. I think I will try rsync with reduced bandwidth or copy temporarily to SSD or harddisk, although I need to think where to stuff these 32 GiB temporarily. Thanks, Martin
Before this happened I also experienced this: Bug 83561 - Suboptimal chainsaw behavior in copying between to SD cards
Created attachment 148881 [details] kern.log while this happened I truncated it to the time span where this happened.
With merkaba:~> rsync -aP --bwlimit 5000 /media/martin/MUSIK1/ /media/martin/MUSIK/ the data transfer completed without any further errors in dmesg / kern.log. So probably this only happens on massive data transfers filling buffers and queues completely.
I did not see any errors like that in a long time. Closing.
Previously there was a state like WORKSFORME. Now there is only CODE_FIX and UNREPRODUCIBLE. I am not sure whether the code has been fixed and if so by what commit. Also initially it was reproducible. Thus reopening again. Feel free to close it with the proper flag. I don´t know what it would be. I did not see the erroneous behavior since years actually, but it has been there initially. It might have been that the code has been fixed, but it might also have any other cause that this did not reappear.