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** Changed in: linux (Ubuntu)
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/891115

Title:
  megasas driver - device goes to offline

Status in Xen:
  New
Status in linux package in Ubuntu:
  Won't Fix

Bug description:
  I have ubuntu server 11.10 (amd64) installed on my dell R510 with
  Perc6/i. I am using xen hypervisor and I have one guest at the moment.
  Under io load (guest) my dom0 freezes and after couple minutes I get
  following dump:

  [ 1053.020258] sd 4:2:0:0: [sda] megasas: RESET cmd=2a retries=0
  [ 1053.020262] megasas: [ 0]waiting for 92 commands to complete
  [ 1054.024201] megaraid_sas: no pending cmds after reset
  [ 1054.024203] megasas: reset successful
  [ 1064.024203] sd 4:2:0:0: [sda] megasas: RESET cmd=0 retries=0
  [ 1064.024206] megasas: [ 0]waiting for 1 commands to complete
  [ 1065.028204] megaraid_sas: no pending cmds after reset
  [ 1065.028206] megasas: reset successful
  [ 1065.028214] sd 4:2:0:0: [sda] megasas: RESET cmd=2a retries=0
  [ 1065.028218] megaraid_sas: no pending cmds after reset
  [ 1065.028219] megasas: reset successful
  [ 1085.032209] sd 4:2:0:0: [sda] megasas: RESET cmd=0 retries=0
  [ 1085.032212] megasas: [ 0]waiting for 1 commands to complete
  [ 1086.036199] megaraid_sas: no pending cmds after reset
  [ 1086.036201] megasas: reset successful
  [ 1086.036206] sd 4:2:0:0: [sda] megasas: RESET cmd=2a retries=0
  [ 1086.036211] megaraid_sas: no pending cmds after reset
  [ 1086.036212] megasas: reset successful
  [ 1088.460225] INFO: task jbd2/dm-4-8:425 blocked for more than 120 seconds.
  [ 1088.460296] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables 
this message.
  [ 1088.460380] jbd2/dm-4-8     D ffff880bcf6a3a40     0   425      2 
0x00000000
  [ 1088.460387]  ffff880b7478fbf0 0000000000000246 ffff880b7478fb90 
ffffffff81007730
  [ 1088.460396]  ffff880b7478ffd8 ffff880b7478ffd8 ffff880b7478ffd8 
0000000000012a40
  [ 1088.460403]  ffff880b7a33c560 ffff880b75b35c80 ffff880bcf9ce8c0 
ffff880bcf6a42c0
  [ 1088.460411] Call Trace:
  [ 1088.460423]  [<ffffffff81007730>] ? xen_clocksource_read+0x20/0x30
  [ 1088.460430]  [<ffffffff81195300>] ? __wait_on_buffer+0x30/0x30
  [ 1088.460437]  [<ffffffff815fc9ef>] io_schedule+0x8f/0xd0
  [ 1088.460442]  [<ffffffff8119530e>] sleep_on_buffer+0xe/0x20
  [ 1088.460447]  [<ffffffff815fd29f>] __wait_on_bit+0x5f/0x90
  [ 1088.460454]  [<ffffffff812e8670>] ? kobject_del+0x40/0x40
  [ 1088.460459]  [<ffffffff81195300>] ? __wait_on_buffer+0x30/0x30
  [ 1088.460463]  [<ffffffff815fd34c>] out_of_line_wait_on_bit+0x7c/0x90
  [ 1088.460470]  [<ffffffff81081740>] ? autoremove_wake_function+0x40/0x40
  [ 1088.460475]  [<ffffffff811952fe>] __wait_on_buffer+0x2e/0x30
  [ 1088.460482]  [<ffffffff81246620>] 
jbd2_journal_commit_transaction+0x720/0x1250
  [ 1088.460488]  [<ffffffff8106ee32>] ? try_to_del_timer_sync+0x92/0x130
  [ 1088.460493]  [<ffffffff8124af7b>] kjournald2+0xbb/0x220
  [ 1088.460499]  [<ffffffff81081700>] ? add_wait_queue+0x60/0x60
  [ 1088.460503]  [<ffffffff8124aec0>] ? commit_timeout+0x10/0x10
  [ 1088.460509]  [<ffffffff81080c5c>] kthread+0x8c/0xa0
  [ 1088.460515]  [<ffffffff81607d24>] kernel_thread_helper+0x4/0x10
  [ 1088.460521]  [<ffffffff81606e23>] ? int_ret_from_sys_call+0x7/0x1b
  [ 1088.460526]  [<ffffffff815feda1>] ? retint_restore_args+0x5/0x6
  [ 1088.460532]  [<ffffffff81607d20>] ? gs_change+0x13/0x13
  [ 1088.460539] INFO: task flush-252:4:1204 blocked for more than 120 seconds.
  [ 1088.460605] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables 
this message.
  [ 1088.460690] flush-252:4     D ffff880bcf66da40     0  1204      2 
0x00000000
  [ 1088.460696]  ffff880b6fc375a0 0000000000000246 ffff880b6fc37540 
ffffffff81007730
  [ 1088.460704]  ffff880b6fc37fd8 ffff880b6fc37fd8 ffff880b6fc37fd8 
0000000000012a40
  [ 1088.460712]  ffffffff81c0b020 ffff880b6fcd5c80 ffff880bcf9c5938 
ffff880bcf66e2c0
  [ 1088.460719] Call Trace:
  [ 1088.460724]  [<ffffffff81007730>] ? xen_clocksource_read+0x20/0x30
  [ 1088.460730]  [<ffffffff81195300>] ? __wait_on_buffer+0x30/0x30
  [ 1088.460734]  [<ffffffff815fc9ef>] io_schedule+0x8f/0xd0
  [ 1088.460739]  [<ffffffff8119530e>] sleep_on_buffer+0xe/0x20
  [ 1088.460744]  [<ffffffff815fd14a>] __wait_on_bit_lock+0x5a/0xc0
  [ 1088.460749]  [<ffffffff81195300>] ? __wait_on_buffer+0x30/0x30
  [ 1088.460754]  [<ffffffff815fd22c>] out_of_line_wait_on_bit_lock+0x7c/0x90
  [ 1088.460760]  [<ffffffff81081740>] ? autoremove_wake_function+0x40/0x40
  [ 1088.460765]  [<ffffffff81195356>] __lock_buffer+0x36/0x40
  [ 1088.460769]  [<ffffffff8124529a>] do_get_write_access+0x48a/0x500
  [ 1088.460775]  [<ffffffff81245450>] jbd2_journal_get_write_access+0x30/0x50
  [ 1088.460782]  [<ffffffff8122b55e>] __ext4_journal_get_write_access+0x3e/0x80
  [ 1088.460788]  [<ffffffff8123274b>] ext4_mb_mark_diskspace_used+0xfb/0x4e0
  [ 1088.460793]  [<ffffffff81231139>] ? ext4_mb_new_inode_pa+0x299/0x3a0
  [ 1088.460798]  [<ffffffff81233cbf>] ext4_mb_new_blocks+0x29f/0x460
  [ 1088.460803]  [<ffffffff8122a4b1>] ext4_ext_map_blocks+0x5a1/0xb30
  [ 1088.460810]  [<ffffffff81114d65>] ? pagevec_lookup_tag+0x25/0x40
  [ 1088.460816]  [<ffffffff81207225>] ext4_map_blocks+0x1b5/0x240
  [ 1088.460821]  [<ffffffff81209dab>] mpage_da_map_and_submit+0xbb/0x360
  [ 1088.460828]  [<ffffffff81243b73>] ? jbd2_journal_start+0x13/0x20
  [ 1088.460833]  [<ffffffff81220849>] ? ext4_journal_start_sb+0x69/0x170
  [ 1088.460838]  [<ffffffff81007b62>] ? check_events+0x12/0x20
  [ 1088.460843]  [<ffffffff8120a89c>] ext4_da_writepages+0x32c/0x5e0
  [ 1088.460849]  [<ffffffff812e68a6>] ? cpumask_next_and+0x36/0x50
  [ 1088.460854]  [<ffffffff81114271>] do_writepages+0x21/0x40
  [ 1088.460859]  [<ffffffff8118ea03>] writeback_single_inode+0x103/0x270
  [ 1088.460864]  [<ffffffff8118ee01>] writeback_sb_inodes+0xe1/0x1b0
  [ 1088.460869]  [<ffffffff8118f166>] writeback_inodes_wb+0xa6/0xf0
  [ 1088.460874]  [<ffffffff81007b4f>] ? xen_restore_fl_direct_reloc+0x4/0x4
  [ 1088.460879]  [<ffffffff8118f4df>] wb_writeback+0x32f/0x430
  [ 1088.460884]  [<ffffffff8118f678>] wb_check_old_data_flush+0x98/0xa0
  [ 1088.460889]  [<ffffffff8118f7d1>] wb_do_writeback+0x151/0x1f0
  [ 1088.460896]  [<ffffffff8106dd70>] ? usleep_range+0x50/0x50
  [ 1088.460901]  [<ffffffff8118f8f3>] bdi_writeback_thread+0x83/0x2a0
  [ 1088.460906]  [<ffffffff8118f870>] ? wb_do_writeback+0x1f0/0x1f0
  [ 1088.460911]  [<ffffffff81080c5c>] kthread+0x8c/0xa0
  [ 1088.460916]  [<ffffffff81607d24>] kernel_thread_helper+0x4/0x10
  [ 1088.460921]  [<ffffffff81606e23>] ? int_ret_from_sys_call+0x7/0x1b
  [ 1088.460926]  [<ffffffff815feda1>] ? retint_restore_args+0x5/0x6
  [ 1088.460932]  [<ffffffff81607d20>] ? gs_change+0x13/0x13
  [ 1088.460937] INFO: task bash:2443 blocked for more than 120 seconds.
  [ 1088.461002] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables 
this message.
  [ 1088.461085] bash            D ffff880bcf745a40     0  2443   2217 
0x00000000
  [ 1088.461092]  ffff880b75c8d818 0000000000000282 ffff880b75c8d7b8 
ffffffff81007730
  [ 1088.461100]  ffff880b75c8dfd8 ffff880b75c8dfd8 ffff880b75c8dfd8 
0000000000012a40
  [ 1088.461107]  ffff880b7a36dc80 ffff880b79249720 ffff880bcf9d0138 
ffff880bcf7462c0
  [ 1088.461115] Call Trace:
  [ 1088.461120]  [<ffffffff81007730>] ? xen_clocksource_read+0x20/0x30
  [ 1088.461125]  [<ffffffff81195300>] ? __wait_on_buffer+0x30/0x30
  [ 1088.461130]  [<ffffffff815fc9ef>] io_schedule+0x8f/0xd0
  [ 1088.461135]  [<ffffffff8119530e>] sleep_on_buffer+0xe/0x20
  [ 1088.461140]  [<ffffffff815fd14a>] __wait_on_bit_lock+0x5a/0xc0
  [ 1088.461145]  [<ffffffff81195300>] ? __wait_on_buffer+0x30/0x30
  [ 1088.461149]  [<ffffffff815fd22c>] out_of_line_wait_on_bit_lock+0x7c/0x90
  [ 1088.461155]  [<ffffffff8100743d>] ? xen_force_evtchn_callback+0xd/0x10
  [ 1088.461160]  [<ffffffff81081740>] ? autoremove_wake_function+0x40/0x40
  [ 1088.461165]  [<ffffffff81195356>] __lock_buffer+0x36/0x40
  [ 1088.461170]  [<ffffffff8124529a>] do_get_write_access+0x48a/0x500
  [ 1088.461176]  [<ffffffff81196067>] ? __find_get_block+0x87/0xe0
  [ 1088.461181]  [<ffffffff81196217>] ? __getblk+0x27/0x60
  [ 1088.461185]  [<ffffffff81245450>] jbd2_journal_get_write_access+0x30/0x50
  [ 1088.461191]  [<ffffffff8122b55e>] __ext4_journal_get_write_access+0x3e/0x80
  [ 1088.461196]  [<ffffffff812061b8>] ext4_reserve_inode_write+0x78/0xa0
  [ 1088.461201]  [<ffffffff8120622e>] ext4_mark_inode_dirty+0x4e/0x210
  [ 1088.461206]  [<ffffffff8120af1c>] ? ext4_dirty_inode+0x3c/0x60
  [ 1088.461211]  [<ffffffff81007b62>] ? check_events+0x12/0x20
  [ 1088.461216]  [<ffffffff8120af1c>] ext4_dirty_inode+0x3c/0x60
  [ 1088.461223]  [<ffffffff8118df20>] __mark_inode_dirty+0x40/0x280
  [ 1088.461228]  [<ffffffff8100743d>] ? xen_force_evtchn_callback+0xd/0x10
  [ 1088.461233]  [<ffffffff81111cc3>] ? prep_new_page+0x163/0x1f0
  [ 1088.461239]  [<ffffffff81180997>] touch_atime+0x137/0x180
  [ 1088.461246]  [<ffffffff8110a437>] 
do_generic_file_read.constprop.36+0x367/0x440
  [ 1088.461252]  [<ffffffff8110b300>] generic_file_aio_read+0x120/0x290
  [ 1088.461259]  [<ffffffff81167012>] do_sync_read+0xd2/0x110
  [ 1088.461264]  [<ffffffff812b1b33>] ? __attach_match+0x43/0xc0
  [ 1088.461270]  [<ffffffff81281bc3>] ? security_file_permission+0x93/0xb0
  [ 1088.461275]  [<ffffffff81167351>] ? rw_verify_area+0x61/0xf0
  [ 1088.461281]  [<ffffffff81167830>] vfs_read+0xb0/0x180
  [ 1088.461286]  [<ffffffff8116cbd6>] kernel_read+0x46/0x60
  [ 1088.461291]  [<ffffffff8116cd0b>] prepare_binprm+0x11b/0x1c0
  [ 1088.461296]  [<ffffffff8116efc3>] do_execve_common.isra.27+0x1f3/0x300
  [ 1088.461301]  [<ffffffff8116f0eb>] do_execve+0x1b/0x20
  [ 1088.461307]  [<ffffffff81012ba7>] sys_execve+0x47/0x70
  [ 1088.461312]  [<ffffffff8160705c>] stub_execve+0x6c/0xc0
  [ 1106.040202] sd 4:2:0:0: [sda] megasas: RESET cmd=0 retries=0
  [ 1106.040205] megasas: [ 0]waiting for 1 commands to complete
  [ 1107.044209] megaraid_sas: no pending cmds after reset
  [ 1107.044211] megasas: reset successful
  [ 1107.044218] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044220] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044222] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044224] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044225] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044227] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044229] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044231] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044232] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044234] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044236] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044237] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044239] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044241] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044242] sd 4:2:0:0: Device offlined - not ready after error recovery
  ....
  ....
  [ 1107.044364] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044366] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044367] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044369] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044371] sd 4:2:0:0: Device offlined - not ready after error recovery
  [ 1107.044380] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.044382] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.044386] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 87 b7 78 00 00 28 00
  [ 1107.044397] end_request: I/O error, dev sda, sector 8894328
  [ 1107.044458] quiet_error: 1 callbacks suppressed
  [ 1107.044461] Buffer I/O error on device dm-4, logical block 1049023
  [ 1107.044514] lost page write due to I/O error on dm-4
  [ 1107.044524] Buffer I/O error on device dm-4, logical block 1049024
  [ 1107.044578] lost page write due to I/O error on dm-4
  [ 1107.044583] Buffer I/O error on device dm-4, logical block 1049025
  [ 1107.044638] lost page write due to I/O error on dm-4
  [ 1107.044644] Buffer I/O error on device dm-4, logical block 1049026
  [ 1107.044703] lost page write due to I/O error on dm-4
  [ 1107.044708] Buffer I/O error on device dm-4, logical block 1049027
  [ 1107.044764] lost page write due to I/O error on dm-4
  [ 1107.044774] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.044833] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.044835] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.044838] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 87 b7 60 00 00
  [ 1107.044848] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.044853] sd 4:2:0:0: [sda]  Result: hostbyte=DID_NO_CONNECT 
driverbyte=DRIVER_OK
  [ 1107.044861] sd 4:2:0:0: [sda] CDB: Read(10): 28 00 02 0c ce 10 00 00 20 00
  [ 1107.044886] end_request: I/O error, dev sda, sector 34393616
  [ 1107.044944]  08 00
  [ 1107.044947] end_request: I/O error, dev sda, sector 8894304
  [ 1107.045002] Buffer I/O error on device dm-4, logical block 1049020
  [ 1107.045057] lost page write due to I/O error on dm-4
  [ 1107.045065] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045067] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045070] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 87 b4 78 00 00 08 00
  [ 1107.045080] end_request: I/O error, dev sda, sector 8893560
  [ 1107.045134] Buffer I/O error on device dm-4, logical block 1048927
  [ 1107.045188] lost page write due to I/O error on dm-4
  [ 1107.045194] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045196] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045199] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 87 aa 80 00 00 08 00
  [ 1107.045208] end_request: I/O error, dev sda, sector 8891008
  [ 1107.045263] Buffer I/O error on device dm-4, logical block 1048608
  [ 1107.045317] lost page write due to I/O error on dm-4
  [ 1107.045323] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045324] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045327] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 87 aa 00 00 00 08 00
  [ 1107.045336] end_request: I/O error, dev sda, sector 8890880
  [ 1107.045391] Buffer I/O error on device dm-4, logical block 1048592
  [ 1107.045446] lost page write due to I/O error on dm-4
  [ 1107.045452] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045454] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045456] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 87 a9 80 00 00 08 00
  [ 1107.045466] end_request: I/O error, dev sda, sector 8890752
  [ 1107.045522] Buffer I/O error on device dm-4, logical block 1048576
  [ 1107.045576] lost page write due to I/O error on dm-4
  [ 1107.045582] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045583] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045586] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 07 c9 b0 00 00 08 00
  [ 1107.045595] end_request: I/O error, dev sda, sector 510384
  [ 1107.045658] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045660] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045663] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 07 a9 80 00 00 10 00
  [ 1107.045672] end_request: I/O error, dev sda, sector 502144
  [ 1107.045736] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045738] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045741] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 08 b3 70 00 00 08 00
  [ 1107.045751] end_request: I/O error, dev sda, sector 34124656
  [ 1107.045795] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.045801] Buffer I/O error on device dm-4, logical block 272517
  [ 1107.045809] EXT4-fs warning (device dm-4): ext4_end_bio:242: I/O error 
writing to inode 1051510 (offset 282624 size 4096 starting block 272517)
  [ 1107.045932] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.045934] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.045937] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 08 ac 40 00 00 08 00
  [ 1107.045946] end_request: I/O error, dev sda, sector 34122816
  [ 1107.046011] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046013] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046015] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 08 ac 18 00 00 08 00
  [ 1107.046025] end_request: I/O error, dev sda, sector 34122776
  [ 1107.046086] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046088] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046090] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 08 ab b0 00 00 08 00
  [ 1107.046100] end_request: I/O error, dev sda, sector 34122672
  [ 1107.046160] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046162] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046164] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 08 aa f8 00 00 08 00
  [ 1107.046174] end_request: I/O error, dev sda, sector 34122488
  [ 1107.046236] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046238] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046240] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 08 aa e0 00 00 08 00
  [ 1107.046250] end_request: I/O error, dev sda, sector 34122464
  [ 1107.046311] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046312] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046315] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 b0 40 00 00 70 00
  [ 1107.046324] end_request: I/O error, dev sda, sector 34058304
  [ 1107.046408] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046410] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046413] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 b0 20 00 00 10 00
  [ 1107.046422] end_request: I/O error, dev sda, sector 34058272
  [ 1107.046485] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046487] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046489] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 af 88 00 00 78 00
  [ 1107.046499] end_request: I/O error, dev sda, sector 34058120
  [ 1107.046585] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046586] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046589] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 af 48 00 00 30 00
  [ 1107.046599] end_request: I/O error, dev sda, sector 34058056
  [ 1107.046668] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046670] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046673] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 af 10 00 00 28 00
  [ 1107.046682] end_request: I/O error, dev sda, sector 34058000
  [ 1107.046750] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046751] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046754] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ae b8 00 00 50 00
  [ 1107.046764] end_request: I/O error, dev sda, sector 34057912
  [ 1107.046837] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046839] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046841] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ae a8 00 00 08 00
  [ 1107.046851] end_request: I/O error, dev sda, sector 34057896
  [ 1107.046913] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046915] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046918] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ae 90 00 00 10 00
  [ 1107.046927] end_request: I/O error, dev sda, sector 34057872
  [ 1107.046994] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.046996] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.046999] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ae 18 00 00 70 00
  [ 1107.047008] end_request: I/O error, dev sda, sector 34057752
  [ 1107.047086] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047088] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047091] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ae 00 00 00 10 00
  [ 1107.047100] end_request: I/O error, dev sda, sector 34057728
  [ 1107.047163] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047165] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047168] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ad d0 00 00 28 00
  [ 1107.047177] end_request: I/O error, dev sda, sector 34057680
  [ 1107.047242] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047244] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047246] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ad c0 00 00 08 00
  [ 1107.047256] end_request: I/O error, dev sda, sector 34057664
  [ 1107.047314] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047316] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047318] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ad 98 00 00 08 00
  [ 1107.047328] end_request: I/O error, dev sda, sector 34057624
  [ 1107.047386] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047388] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047392] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 98 00 00 20 00
  [ 1107.047402] end_request: I/O error, dev sda, sector 34057368
  [ 1107.047467] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047469] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047471] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 70 00 00 20 00
  [ 1107.047481] end_request: I/O error, dev sda, sector 34057328
  [ 1107.047544] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047546] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047548] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 60 00 00 08 00
  [ 1107.047558] end_request: I/O error, dev sda, sector 34057312
  [ 1107.047619] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047620] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047623] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 50 00 00 08 00
  [ 1107.047633] end_request: I/O error, dev sda, sector 34057296
  [ 1107.047691] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047693] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047695] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 28 00 00 18 00
  [ 1107.047704] end_request: I/O error, dev sda, sector 34057256
  [ 1107.047766] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047768] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047770] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 10 00 00 10 00
  [ 1107.047780] end_request: I/O error, dev sda, sector 34057232
  [ 1107.047839] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047841] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047844] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ac 00 00 00 08 00
  [ 1107.047853] end_request: I/O error, dev sda, sector 34057216
  [ 1107.047912] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047914] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047916] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ab d0 00 00 28 00
  [ 1107.047926] end_request: I/O error, dev sda, sector 34057168
  [ 1107.047990] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.047992] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.047994] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ab 90 00 00 30 00
  [ 1107.048004] end_request: I/O error, dev sda, sector 34057104
  [ 1107.048070] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048072] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048074] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ab 78 00 00 10 00
  [ 1107.048084] end_request: I/O error, dev sda, sector 34057080
  [ 1107.048144] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048146] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048149] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ab 28 00 00 30 00
  [ 1107.048158] end_request: I/O error, dev sda, sector 34057000
  [ 1107.048236] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048239] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048243] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 ab 00 00 00 20 00
  [ 1107.048256] end_request: I/O error, dev sda, sector 34056960
  [ 1107.048331] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048333] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048337] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 aa e0 00 00 08 00
  [ 1107.048350] end_request: I/O error, dev sda, sector 34056928
  [ 1107.048415] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048417] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048417] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048420] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 aa b8 00 00 18 00
  [ 1107.048434] end_request: I/O error, dev sda, sector 34056888
  [ 1107.048507] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048510] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048514] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 aa 88 00 00 20 00
  [ 1107.048528] end_request: I/O error, dev sda, sector 34056840
  [ 1107.048601] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048604] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048608] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 02 07 a9 80 00 00 10 00
  [ 1107.048620] end_request: I/O error, dev sda, sector 34056576
  [ 1107.048691] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048694] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048697] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 48 aa 80 00 00 08 00
  [ 1107.048710] end_request: I/O error, dev sda, sector 21539456
  [ 1107.048776] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048778] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048783] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 47 ab 70 00 00 08 00
  [ 1107.048796] end_request: I/O error, dev sda, sector 21474160
  [ 1107.048864] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048867] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048871] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 47 aa e0 00 00 08 00
  [ 1107.048884] end_request: I/O error, dev sda, sector 21474016
  [ 1107.048953] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.048956] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.048959] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 47 aa 80 00 00 08 00
  [ 1107.048972] end_request: I/O error, dev sda, sector 21473920
  [ 1107.049037] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049039] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049043] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 47 aa 00 00 00 08 00
  [ 1107.049055] end_request: I/O error, dev sda, sector 21473792
  [ 1107.049120] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049122] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049126] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 47 a9 88 00 00 08 00
  [ 1107.049140] end_request: I/O error, dev sda, sector 21473672
  [ 1107.049212] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049215] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049218] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 da 50 00 00 10 00
  [ 1107.049232] end_request: I/O error, dev sda, sector 8968784
  [ 1107.049306] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049309] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049313] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 d8 e0 00 00 08 00
  [ 1107.049326] end_request: I/O error, dev sda, sector 8968416
  [ 1107.049397] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049400] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049405] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 d7 a8 00 00 08 00
  [ 1107.049418] end_request: I/O error, dev sda, sector 8968104
  [ 1107.049483] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049485] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049489] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 be b8 00 00 08 00
  [ 1107.049502] end_request: I/O error, dev sda, sector 8961720
  [ 1107.049571] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049574] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049578] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 bd 30 00 00 08 00
  [ 1107.049592] end_request: I/O error, dev sda, sector 8961328
  [ 1107.049670] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049672] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049676] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 b7 e0 00 00 08 00
  [ 1107.049693] end_request: I/O error, dev sda, sector 8959968
  [ 1107.049770] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049775] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049779] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 00 88 aa 88 00 00 08 00
  [ 1107.049796] end_request: I/O error, dev sda, sector 8956552
  [ 1107.049865] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049869] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049873] sd 4:2:0:0: [sda] CDB: Read(10): 28 00 01 4c 01 88 00 00 08 00
  [ 1107.049886] end_request: I/O error, dev sda, sector 21758344
  [ 1107.049961] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.049964] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.049967] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 01 0b bf f0 00 01 50 00
  [ 1107.049980] end_request: I/O error, dev sda, sector 17547248
  [ 1107.050122] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.050125] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.050129] sd 4:2:0:0: [sda] CDB: Read(10): 28 00 08 b7 25 10 00 00 08 00
  [ 1107.050142] end_request: I/O error, dev sda, sector 146220304
  [ 1107.050175] Aborting journal on device dm-4-8.
  [ 1107.050192] EXT4-fs (dm-4): delayed block allocation failed for inode 
1050262 at logical offset 0 with max blocks 2 with error -30
  [ 1107.050200] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.050205] EXT4-fs (dm-4): This should not happen!! Data will be lost
  [ 1107.050209]
  [ 1107.050212] JBD2: I/O error detected when updating journal superblock for 
dm-4-8.
  [ 1107.050220] EXT4-fs error (device dm-4) in ext4_da_writepages:3033: 
Journal has aborted
  [ 1107.050228] EXT4-fs (dm-4): previous I/O error to superblock detected
  [ 1107.050246] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.050256] EXT4-fs (dm-4): Remounting filesystem read-only
  [ 1107.050263] EXT4-fs (dm-4): ext4_da_writepages: jbd2_start: 1023 pages, 
ino 1050262; err -30
  [ 1107.050269] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.050279] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.050287] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.050296] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.050308] JBD2: Detected IO errors while flushing file data on dm-4-8
  [ 1107.050338] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051224] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.051228] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.051231] sd 4:2:0:0: [sda] CDB: Read(10): 28 00 00 8c 16 c8 00 00 08 00
  [ 1107.051244] end_request: I/O error, dev sda, sector 9180872
  [ 1107.051266] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051310] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051339] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051381] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051413] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051438] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051464] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051484] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051502] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051524] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051544] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051566] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.051954] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.051956] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.051958] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 20 f4 ab 60 00 00 58 00
  [ 1107.051968] end_request: I/O error, dev sda, sector 552905568
  [ 1107.051982] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.052098] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.052100] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.052103] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 20 f4 ab 08 00 00 58 00
  [ 1107.052112] end_request: I/O error, dev sda, sector 552905480
  [ 1107.052135] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.052267] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.052270] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.052273] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 20 f4 aa b0 00 00 58 00
  [ 1107.052286] end_request: I/O error, dev sda, sector 552905392
  [ 1107.052314] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.052434] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.052438] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.052442] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 20 f4 aa 58 00 00 58 00
  [ 1107.052455] end_request: I/O error, dev sda, sector 552905304
  [ 1107.052550] sd 4:2:0:0: [sda] Unhandled error code
  [ 1107.052553] sd 4:2:0:0: [sda]  Result: hostbyte=DID_OK 
driverbyte=DRIVER_TIMEOUT
  [ 1107.052556] sd 4:2:0:0: [sda] CDB: Write(10): 2a 00 20 f4 aa 00 00 00 58 00
  [ 1107.052568] end_request: I/O error, dev sda, sector 552905216
  [ 1107.052596] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.052652] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.052695] sd 4:2:0:0: rejecting I/O to offline device
  [ 1107.052741] sd 4:2:0:0: rejecting I/O to offline device
  .....

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