megasas driver - device goes to offline

[Kari Kallioinen]

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
.....

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 891115

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Kari Kallioinen (karbas)]

Because disk IO is freezing I can't run that software.

[Kari Kallioinen (karbas)]

I checked raid controllers bios and it showed no errors for the disks or virtual disks.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . If possible, please test the latest v3.2-rcN kernel (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the others). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed by the mainline kernel, please add the following tag 'kernel-fixed-upstream-KERNEL-VERSION'. For example, if kernel version 3.2-rc1 fixed and issue, the tag would be: 'kernel-fixed-upstream-v3.2-rc1'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. If you believe this bug does not require upstream testing, please add the tag: 'kernel-upstream-testing-not-needed'.

Thanks in advance.

[Kari Kallioinen (karbas)]

I tried with mainline kernel v3.2-rc2-oneiric and same problem exists. We have also changed hardware (the raid controller and it's battery) and it didn't help either.

This problem exists in Dell R510 Which is allmost the same as R710. Atleast both have same Perc 6/i (MegaRAID SAS 1078) raid controllers. So this same problem might exist in Ubuntu certified hardware (http://www.ubuntu.com/certification/hardware/200905-2781)

[Kari Kallioinen (karbas)]

I have been now testing this and I think this is related to Xen. I have been running system now without Xen hypervisor and using bonnie++ same way and my system haven't crashed.

[Joseph Salisbury (jsalisbury)]

Is the crash happening on the host or the guest?

[Kari Kallioinen (karbas)]

On the host.

[Naviathan (naviathan)]

This is not related to Xen. I'm running a small file server at home with Ubuntu Server 11.10 and an LSI MegaRAID 8480E controller and I've been getting the same errors and the card going offline randomly. Aside from the listed output above from syslog there's no errors or logs that can be taken of this problem.

I have a theory I'm testing that it might be heat related. It's happened to me 3 times and the last two times it happened the heat sink on the controller was burning hot. I've applied new compound and added a small fan to it. I'll post back my results, it may take a couple days to fully test.

[Naviathan (naviathan)]

I think this boils down to heat issues. So far I've been going strong with no drop outs after applying some fresh heat sink compound and adding a small fan to the heat sink. To the OP Kari, check your thermals.

[penalvch (penalvch)]

Kari Kallioinen, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest server release of Ubuntu? ISO images are available from http://releases.ubuntu.com/raring/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.