Hi! Faced with this problem. There are RAID5, assembled by mdadm (/dev/md127), which is divided into 2 partitions (md127p1 and md127p2). In both reiserfs. The second partition is exported via NFS. Everything works, the array is intact and fully synchronized. SMART says disks are healthy. But when copy too many files all hangs and saves only the reset. After a reset of course runs fsck, and then synchronize the array. I have a brand new computer. Sleaze is not set. Motherboard gigabyte 870-UD3, Power Supply FSP 700W, memory 16Gb Kingston, CPU Phenom II X6 1090T. I reported an error on bugs.gentoo.org: https://bugs.gentoo.org/show_bug.cgi?id=385047 Was compiling a custom kernel with support for debugging and debug messages are received. Duane Griffin then sent me upstream. Now I have have BUG spinlock lockup on screen: Nov 26 13:34:46 localhost kernel: BUG: spinlock lockup on CPU#2, mc/7609, ffff880419c37200 Oct 4 15:55:50 localhost kernel: BUG: spinlock lockup on CPU#3, flush-9:127/2391, ffff880419c37200 Full log from /var/log/messages: Oct 4 15:53:09 localhost kernel: INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0 2} (detected by 5, t=60028 jiffies) Oct 4 15:53:15 localhost kernel: INFO: rcu_bh_state detected stalls on CPUs/tasks: { 0 2 3} (detected by 5, t=60025 jiffies) Oct 4 15:55:25 localhost kernel: INFO: task sync_supers:151 blocked for more than 120 seconds. Oct 4 15:55:25 localhost kernel: "echo 0> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 4 15:55:25 localhost kernel: sync_supers D 0000000000000000 0 151 2 0x00000000 Oct 4 15:55:25 localhost kernel: ffff88042dba5740 0000000000000046 ffffffff81493e95 0000000000000008 Oct 4 15:55:25 localhost kernel: ffff88042dba8000 00000000000001ec 0000000000010b40 ffff88042dba8000 Oct 4 15:55:25 localhost kernel: 0000000000010b40 ffff88042dba5fd8 ffff88042dba4000 0000000000004000 Oct 4 15:55:25 localhost kernel: Call Trace: Oct 4 15:55:25 localhost kernel: [<ffffffff81493e95>] ? schedule+0x695/0xa10 Oct 4 15:55:25 localhost kernel: [<ffffffff8107b462>] ? mark_held_locks+0x72/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff8103fa41>] ? get_parent_ip+0x11/0x50 Oct 4 15:55:25 localhost kernel: [<ffffffff8138de22>] get_active_stripe+0x312/0x6f0 Oct 4 15:55:25 localhost kernel: [<ffffffff8103e7f0>] ? try_to_wake_up+0x2d0/0x2d0 Oct 4 15:55:25 localhost kernel: [<ffffffff81391bb8>] make_request+0x1a8/0x720 Oct 4 15:55:25 localhost kernel: [<ffffffff81064430>] ? wake_up_bit+0x40/0x40 Oct 4 15:55:25 localhost kernel: [<ffffffff8139c6be>] md_make_request+0x16e/0x2f0 Oct 4 15:55:25 localhost kernel: [<ffffffff8139c5a8>] ? md_make_request+0x58/0x2f0 Oct 4 15:55:25 localhost kernel: [<ffffffff810fcbb3>] ? kmem_cache_alloc+0x33/0xc0 Oct 4 15:55:25 localhost kernel: [<ffffffff81242dac>] generic_make_request+0x14c/0x2f0 Oct 4 15:55:25 localhost kernel: [<ffffffff81242fb1>] submit_bio+0x61/0xd0 Oct 4 15:55:25 localhost kernel: [<ffffffff81131e26>] submit_bh+0xe6/0x120 Oct 4 15:55:25 localhost kernel: [<ffffffff81192c8b>] write_ordered_chunk+0x5b/0x90 Oct 4 15:55:25 localhost kernel: [<ffffffff81192bfc>] add_to_chunk+0x4c/0x80 Oct 4 15:55:25 localhost kernel: [<ffffffff81192c30>] ? add_to_chunk+0x80/0x80 Oct 4 15:55:25 localhost kernel: [<ffffffff8119407d>] write_ordered_buffers.clone.31+0x8d/0x2a0 Oct 4 15:55:25 localhost kernel: [<ffffffff8107b60d>] ? trace_hardirqs_on+0xd/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff8119444f>] flush_commit_list+0x1bf/0x6e0 Oct 4 15:55:25 localhost kernel: [<ffffffff811984d4>] do_journal_end.clone.34+0xdb4/0xf20 Oct 4 15:55:25 localhost kernel: [<ffffffff810d4b90>] ? bdi_sched_wait+0x10/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff81198f54>] journal_end_sync+0x64/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff81186178>] reiserfs_sync_fs+0x58/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff8149608f>] ? down_read+0x2f/0x50 Oct 4 15:55:25 localhost kernel: [<ffffffff8118619e>] reiserfs_write_super+0xe/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff81109cca>] sync_supers+0xfa/0x100 Oct 4 15:55:25 localhost kernel: [<ffffffff810d4bd1>] bdi_sync_supers+0x41/0x60 Oct 4 15:55:25 localhost kernel: [<ffffffff810d4b90>] ? bdi_sched_wait+0x10/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff81063f36>] kthread+0x96/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff81499194>] kernel_thread_helper+0x4/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff810368b0>] ? finish_task_switch+0x80/0x110 Oct 4 15:55:25 localhost kernel: [<ffffffff814978c4>] ? retint_restore_args+0xe/0xe Oct 4 15:55:25 localhost kernel: [<ffffffff81063ea0>] ? __init_kthread_worker+0x70/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff81499190>] ? gs_change+0xb/0xb Oct 4 15:55:25 localhost kernel: 2 locks held by sync_supers/151: Oct 4 15:55:25 localhost kernel: #0: (&type->s_umount_key#18){+++++.}, at: [<ffffffff81109c53>] sync_supers+0x83/0x100 Oct 4 15:55:25 localhost kernel: #1: (&jl->j_commit_mutex){+.+...}, at: [<ffffffff811943c8>] flush_commit_list+0x138/0x6e0 Oct 4 15:55:25 localhost kernel: INFO: task md127_resync:3773 blocked for more than 120 seconds. Oct 4 15:55:25 localhost kernel: "echo 0> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 4 15:55:25 localhost kernel: md127_resync D 0000000000000000 0 3773 2 0x00000000 Oct 4 15:55:25 localhost kernel: ffff88041880fbb0 0000000000000046 ffffffff81493e95 0000000000000000 Oct 4 15:55:25 localhost kernel: 0000000000000000 ffff88041822e158 0000000000010b40 ffff88042d935b20 Oct 4 15:55:25 localhost kernel: 0000000000010b40 ffff88041880ffd8 ffff88041880e000 0000000000004000 Oct 4 15:55:25 localhost kernel: Call Trace: Oct 4 15:55:25 localhost kernel: [<ffffffff81493e95>] ? schedule+0x695/0xa10 Oct 4 15:55:25 localhost kernel: [<ffffffff8103fa41>] ? get_parent_ip+0x11/0x50 Oct 4 15:55:25 localhost kernel: [<ffffffff81494742>] schedule_timeout+0x152/0x220 Oct 4 15:55:25 localhost kernel: [<ffffffff81053490>] ? run_timer_softirq+0x2c0/0x2c0 Oct 4 15:55:25 localhost kernel: [<ffffffff81494829>] schedule_timeout_uninterruptible+0x19/0x20 Oct 4 15:55:25 localhost kernel: [<ffffffff81053d58>] msleep+0x18/0x20 Oct 4 15:55:25 localhost kernel: [<ffffffff8139dc7c>] md_do_sync+0x93c/0xd60 Oct 4 15:55:25 localhost kernel: [<ffffffff8149743b>] ? _raw_spin_unlock_irq+0x2b/0x60 Oct 4 15:55:25 localhost kernel: [<ffffffff81064430>] ? wake_up_bit+0x40/0x40 Oct 4 15:55:25 localhost kernel: [<ffffffff81054676>] ? recalc_sigpending+0x16/0x40 Oct 4 15:55:25 localhost kernel: [<ffffffff8139e3e6>] md_thread+0x116/0x150 Oct 4 15:55:25 localhost kernel: [<ffffffff814974ad>] ? _raw_spin_unlock_irqrestore+0x3d/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff8139e2d0>] ? md_register_thread+0x110/0x110 Oct 4 15:55:25 localhost kernel: [<ffffffff81063f36>] kthread+0x96/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff81499194>] kernel_thread_helper+0x4/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff810368b0>] ? finish_task_switch+0x80/0x110 Oct 4 15:55:25 localhost kernel: [<ffffffff814978c4>] ? retint_restore_args+0xe/0xe Oct 4 15:55:25 localhost kernel: [<ffffffff81063ea0>] ? __init_kthread_worker+0x70/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff81499190>] ? gs_change+0xb/0xb Oct 4 15:55:25 localhost kernel: no locks held by md127_resync/3773. Oct 4 15:55:25 localhost kernel: INFO: task mc:7609 blocked for more than 120 seconds. Oct 4 15:55:25 localhost kernel: "echo 0> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 4 15:55:25 localhost kernel: mc D 00000000000213da 0 7609 7603 0x00000000 Oct 4 15:55:25 localhost kernel: 0000000091827364 ffff880418bb9af0 ffff880418bb9af0 ffff880418bb9b00 Oct 4 15:55:25 localhost kernel: ffff880418bb9b00 ffffffff00000000 0000000000000087 0000000000521e7f Oct 4 15:55:25 localhost kernel: 00000000000000ca 00000000000000cb 0000000000000133 ffff880418bb9bd8 Oct 4 15:55:25 localhost kernel: Call Trace: Oct 4 15:55:25 localhost kernel: [<ffffffff8117b5a8>] ? reiserfs_readpages+0x18/0x20 Oct 4 15:55:25 localhost kernel: [<ffffffff810c75ad>] ? __do_page_cache_readahead+0x20d/0x2c0 Oct 4 15:55:25 localhost kernel: [<ffffffff810c7455>] ? __do_page_cache_readahead+0xb5/0x2c0 Oct 4 15:55:25 localhost kernel: [<ffffffff812cc920>] ? fbcon_decor_cursor+0x150/0x1e0 Oct 4 15:55:25 localhost kernel: [<ffffffff810c798c>] ? ra_submit+0x1c/0x20 Oct 4 15:55:25 localhost kernel: [<ffffffff810c7a96>] ? ondemand_readahead+0x106/0x2b0 Oct 4 15:55:25 localhost kernel: [<ffffffff810c7d0c>] ? page_cache_sync_readahead+0x2c/0x40 Oct 4 15:55:25 localhost kernel: [<ffffffff810be8d8>] ? generic_file_aio_read+0x428/0x770 Oct 4 15:55:25 localhost kernel: [<ffffffff811064c2>] ? do_sync_read+0xd2/0x110 Oct 4 15:55:25 localhost kernel: [<ffffffff8123266c>] ? security_file_permission+0x8c/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff81106c33>] ? vfs_read+0xc3/0x170 Oct 4 15:55:25 localhost kernel: [<ffffffff81106d2c>] ? sys_read+0x4c/0x90 Oct 4 15:55:25 localhost kernel: [<ffffffff8149803b>] ? system_call_fastpath+0x16/0x1b Oct 4 15:55:25 localhost kernel: 1 lock held by mc/7609: Oct 4 15:55:25 localhost kernel: #0: (&(&conf->device_lock)->rlock){..-...}, at: [<ffffffff8138c862>] release_stripe+0x32/0x60 Oct 4 15:55:25 localhost kernel: INFO: task kworker/1:2:7644 blocked for more than 120 seconds. Oct 4 15:55:25 localhost kernel: "echo 0> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 4 15:55:25 localhost kernel: kworker/1:2 D 0000000000000000 0 7644 2 0x00000000 Oct 4 15:55:25 localhost kernel: ffff88041b761c50 0000000000000046 ffffffff81493e95 0000000000000002 Oct 4 15:55:25 localhost kernel: ffff88041b761c10 0000000000000046 0000000000010b40 ffff88041b57ad90 Oct 4 15:55:25 localhost kernel: 0000000000010b40 ffff88041b761fd8 ffff88041b760000 0000000000004000 Oct 4 15:55:25 localhost kernel: Call Trace: Oct 4 15:55:25 localhost kernel: [<ffffffff81493e95>] ? schedule+0x695/0xa10 Oct 4 15:55:25 localhost kernel: [<ffffffff8103d861>] ? load_balance+0xd1/0x830 Oct 4 15:55:25 localhost kernel: [<ffffffff8107b462>] ? mark_held_locks+0x72/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff814959d7>] mutex_lock_nested+0x167/0x380 Oct 4 15:55:25 localhost kernel: [<ffffffff811943c8>] ? flush_commit_list+0x138/0x6e0 Oct 4 15:55:25 localhost kernel: [<ffffffff8107b5bd>] ? trace_hardirqs_on_caller+0x12d/0x170 Oct 4 15:55:25 localhost kernel: [<ffffffff811943c8>] flush_commit_list+0x138/0x6e0 Oct 4 15:55:25 localhost kernel: [<ffffffff8119532a>] flush_async_commits+0x5a/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff8105cdcb>] process_one_work+0x18b/0x440 Oct 4 15:55:25 localhost kernel: [<ffffffff8105cd6a>] ? process_one_work+0x12a/0x440 Oct 4 15:55:25 localhost kernel: [<ffffffff811952d0>] ? get_list_bitmap+0xc0/0xc0 Oct 4 15:55:25 localhost kernel: [<ffffffff8105f062>] worker_thread+0x162/0x340 Oct 4 15:55:25 localhost kernel: [<ffffffff8105ef00>] ? manage_workers.clone.25+0x230/0x230 Oct 4 15:55:25 localhost kernel: [<ffffffff8105ef00>] ? manage_workers.clone.25+0x230/0x230 Oct 4 15:55:25 localhost kernel: [<ffffffff81063f36>] kthread+0x96/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff81499194>] kernel_thread_helper+0x4/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff810368b0>] ? finish_task_switch+0x80/0x110 Oct 4 15:55:25 localhost kernel: [<ffffffff814978c4>] ? retint_restore_args+0xe/0xe Oct 4 15:55:25 localhost kernel: [<ffffffff81063ea0>] ? __init_kthread_worker+0x70/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff81499190>] ? gs_change+0xb/0xb Oct 4 15:55:25 localhost kernel: 3 locks held by kworker/1:2/7644: Oct 4 15:55:25 localhost kernel: #0: (reiserfs){.+.+..}, at: [<ffffffff8105cd6a>] process_one_work+0x12a/0x440 Oct 4 15:55:25 localhost kernel: #1: ((&(&journal->j_work)->work)){+.+...}, at: [<ffffffff8105cd6a>] process_one_work+0x12a/0x440 Oct 4 15:55:25 localhost kernel: #2: (&jl->j_commit_mutex){+.+...}, at: [<ffffffff811943c8>] flush_commit_list+0x138/0x6e0 Oct 4 15:55:25 localhost kernel: INFO: task flush-9:127:2391 blocked for more than 120 seconds. Oct 4 15:55:25 localhost kernel: "echo 0> /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 4 15:55:25 localhost kernel: flush-9:127 D ffffffff8112b988 0 2391 2 0x00000000 Oct 4 15:55:25 localhost kernel: 0000000000000000 ffffffff81897e00 ffff8804184bd808 ffff880419c2c980 Oct 4 15:55:25 localhost kernel: ffff88040367fc80 ffff88042f019800 ffff880419c2c8e0 ffff880419c2c970 Oct 4 15:55:25 localhost kernel: ffff88040367fd00 ffff88042f019868 ffff88040367fcd0 ffffffff8112c4b3 Oct 4 15:55:25 localhost kernel: Call Trace: Oct 4 15:55:25 localhost kernel: [<ffffffff8112c4b3>] ? writeback_inodes_wb+0x83/0x180 Oct 4 15:55:25 localhost kernel: [<ffffffff8112c86b>] ? wb_writeback+0x2bb/0x330 Oct 4 15:55:25 localhost kernel: [<ffffffff8103fb15>] ? sub_preempt_count+0x95/0xd0 Oct 4 15:55:25 localhost kernel: [<ffffffff8112cb20>] ? wb_do_writeback+0x240/0x250 Oct 4 15:55:25 localhost kernel: [<ffffffff8112cbc2>] ? bdi_writeback_thread+0x92/0x180 Oct 4 15:55:25 localhost kernel: [<ffffffff8112cb30>] ? wb_do_writeback+0x250/0x250 Oct 4 15:55:25 localhost kernel: [<ffffffff81063f36>] ? kthread+0x96/0xa0 Oct 4 15:55:25 localhost kernel: [<ffffffff81499194>] ? kernel_thread_helper+0x4/0x10 Oct 4 15:55:25 localhost kernel: [<ffffffff810368b0>] ? finish_task_switch+0x80/0x110 Oct 4 15:55:25 localhost kernel: [<ffffffff814978c4>] ? retint_restore_args+0xe/0xe Oct 4 15:55:25 localhost kernel: [<ffffffff81063ea0>] ? __init_kthread_worker+0x70/0x70 Oct 4 15:55:25 localhost kernel: [<ffffffff81499190>] ? gs_change+0xb/0xb Oct 4 15:55:25 localhost kernel: 2 locks held by flush-9:127/2391: Oct 4 15:55:25 localhost kernel: #0: (&type->s_umount_key#24){.+.+..}, at: [<ffffffff8112c52c>] writeback_inodes_wb+0xfc/0x180 Oct 4 15:55:25 localhost kernel: #1: (&(&conf->device_lock)->rlock){..-...}, at: [<ffffffff8138db45>] get_active_stripe+0x35/0x6f0 Nov 26 13:34:46 localhost -- MARK -- Nov 26 13:34:46 localhost kernel: BUG: spinlock lockup on CPU#2, mc/7609, ffff880419c37200 Nov 26 13:34:46 localhost kernel: Pid: 7609, comm: mc Tainted: G W 3.0.4-gentoo-r1 #7 Nov 26 13:34:46 localhost kernel: Call Trace: Nov 26 13:34:46 localhost kernel:<IRQ> [<ffffffff81267866>] do_raw_spin_lock+0x156/0x170 Nov 26 13:34:46 localhost kernel: [<ffffffff81496cc9>] _raw_spin_lock_irqsave+0x49/0x60 Nov 26 13:34:46 localhost kernel: [<ffffffff8138c862>] ? release_stripe+0x32/0x60 Nov 26 13:34:46 localhost kernel: [<ffffffff814974ad>] ? _raw_spin_unlock_irqrestore+0x3d/0x70 Nov 26 13:34:46 localhost kernel: [<ffffffff8138c862>] release_stripe+0x32/0x60 Nov 26 13:34:46 localhost kernel: [<ffffffff8138e80f>] raid5_end_write_request+0xcf/0x120 Nov 26 13:34:46 localhost kernel: [<ffffffff81136318>] bio_endio+0x18/0x30 Nov 26 13:34:46 localhost syslog-ng[6446]: Log statistics; processed='center(received)=0', processed='center(queued)=0', processed='source(src)=999', processed='destination(console_all)=999', processed='destination(messages)=999', processed='global(payload_reallocs)=0', processed='global(sdata_updates)=0', processed='src.internal(src#1)=2', stamp='src.internal(src#1)=2584593286', processed='global(msg_clones)=0' Nov 26 13:36:43 localhost kernel: [<ffffffff812444fb>] req_bio_endio.clone.39+0x8b/0xd0 Nov 26 13:36:43 localhost kernel: [<ffffffff81244633>] blk_update_request+0xf3/0x500 Nov 26 13:36:43 localhost kernel: [<ffffffff81244869>] ? blk_update_request+0x329/0x500 Nov 26 13:36:43 localhost kernel: [<ffffffff8132f765>] ? ata_scsi_qc_complete+0x65/0x460 Nov 26 13:36:43 localhost kernel: [<ffffffff81244a6f>] blk_update_bidi_request+0x2f/0x90 Nov 26 13:36:43 localhost kernel: [<ffffffff81244c3a>] blk_end_bidi_request+0x2a/0x80 Nov 26 13:36:43 localhost kernel: [<ffffffff81244ccb>] blk_end_request+0xb/0x10 Nov 26 13:36:43 localhost kernel: [<ffffffff81319ab7>] scsi_io_completion+0x97/0x5d0 Nov 26 13:36:43 localhost kernel: [<ffffffff813124c2>] scsi_finish_command+0xb2/0xe0 Nov 26 13:36:43 localhost kernel: [<ffffffff813198ad>] scsi_softirq_done+0x9d/0x130 Oct 4 15:55:50 localhost kernel: [<ffffffff81249b4d>] blk_done_softirq+0x7d/0x90 Oct 4 15:55:50 localhost kernel: [<ffffffff8104cbf8>] __do_softirq+0xa8/0x140 Oct 4 15:55:50 localhost kernel: [<ffffffff8149928c>] call_softirq+0x1c/0x30 Oct 4 15:55:50 localhost kernel: [<ffffffff810047b5>] do_softirq+0x85/0xc0 Oct 4 15:55:50 localhost kernel: [<ffffffff8104cf9e>] irq_exit+0x9e/0xc0 Oct 4 15:55:50 localhost kernel: [<ffffffff810043d1>] do_IRQ+0x61/0xd0 Oct 4 15:55:50 localhost kernel: [<ffffffff81497813>] common_interrupt+0x13/0x13 Oct 4 15:55:50 localhost kernel:<EOI> [<ffffffff81497441>] ? _raw_spin_unlock_irq+0x31/0x60 Oct 4 15:55:50 localhost kernel: [<ffffffff8149743b>] ? _raw_spin_unlock_irq+0x2b/0x60 Oct 4 15:55:50 localhost kernel: [<ffffffff8131958e>] scsi_request_fn+0x34e/0x400 Oct 4 15:55:50 localhost kernel: [<ffffffff812424a9>] __blk_run_queue+0x19/0x20 Oct 4 15:55:50 localhost kernel: [<ffffffff812537b5>] cfq_insert_request+0x345/0x4d0 Oct 4 15:55:50 localhost kernel: [<ffffffff81241a56>] __elv_add_request+0x126/0x1e0 Oct 4 15:55:50 localhost kernel: [<ffffffff81245880>] blk_flush_plug_list+0x1b0/0x200 Oct 4 15:55:50 localhost kernel: [<ffffffff81493c32>] schedule+0x432/0xa10 Oct 4 15:55:50 localhost kernel: [<ffffffff8103fa41>] ? get_parent_ip+0x11/0x50 Oct 4 15:55:50 localhost kernel: [<ffffffff8103fb15>] ? sub_preempt_count+0x95/0xd0 Oct 4 15:55:50 localhost kernel: [<ffffffff8138de22>] get_active_stripe+0x312/0x6f0 Oct 4 15:55:50 localhost kernel: [<ffffffff8103e7f0>] ? try_to_wake_up+0x2d0/0x2d0 Oct 4 15:55:50 localhost kernel: [<ffffffff81391bb8>] make_request+0x1a8/0x720 Oct 4 15:55:50 localhost kernel: [<ffffffff81064430>] ? wake_up_bit+0x40/0x40 Oct 4 15:55:50 localhost kernel: [<ffffffff8139c6be>] md_make_request+0x16e/0x2f0 Oct 4 15:55:50 localhost kernel: [<ffffffff8139c5a8>] ? md_make_request+0x58/0x2f0 Oct 4 15:55:50 localhost kernel: [<ffffffff81242dac>] generic_make_request+0x14c/0x2f0 Oct 4 15:55:50 localhost kernel: [<ffffffff8113741a>] ? bvec_alloc_bs+0x6a/0x100 Oct 4 15:55:50 localhost kernel: [<ffffffff81242fb1>] submit_bio+0x61/0xd0 Oct 4 15:55:50 localhost kernel: [<ffffffff8113c3f7>] do_mpage_readpage+0x317/0x650 Oct 4 15:55:50 localhost kernel: [<ffffffff810c8c46>] ? __lru_cache_add+0x76/0xc0 Oct 4 15:55:50 localhost kernel: [<ffffffff8113c89c>] mpage_readpages+0xfc/0x150 Oct 4 15:55:50 localhost kernel: [<ffffffff8117d7a0>] ? restart_transaction+0xb0/0xb0 Oct 4 15:55:50 localhost kernel: [<ffffffff8117d7a0>] ? restart_transaction+0xb0/0xb0 Oct 4 15:55:50 localhost kernel: [<ffffffff8117b5a8>] reiserfs_readpages+0x18/0x20 Oct 4 15:55:50 localhost kernel: [<ffffffff810c75ad>] __do_page_cache_readahead+0x20d/0x2c0 Oct 4 15:55:50 localhost kernel: [<ffffffff810c7455>] ? __do_page_cache_readahead+0xb5/0x2c0 Oct 4 15:55:50 localhost kernel: [<ffffffff812cc920>] ? fbcon_decor_cursor+0x150/0x1e0 Oct 4 15:55:50 localhost kernel: [<ffffffff810c798c>] ra_submit+0x1c/0x20 Oct 4 15:55:50 localhost kernel: [<ffffffff810c7a96>] ondemand_readahead+0x106/0x2b0 Oct 4 15:55:50 localhost kernel: [<ffffffff810c7d0c>] page_cache_sync_readahead+0x2c/0x40 Oct 4 15:55:50 localhost kernel: [<ffffffff810be8d8>] generic_file_aio_read+0x428/0x770 Oct 4 15:55:50 localhost kernel: [<ffffffff811064c2>] do_sync_read+0xd2/0x110 Oct 4 15:55:50 localhost kernel: [<ffffffff8123266c>] ? security_file_permission+0x8c/0xa0 Oct 4 15:55:50 localhost kernel: [<ffffffff81106c33>] vfs_read+0xc3/0x170 Oct 4 15:55:50 localhost kernel: [<ffffffff81106d2c>] sys_read+0x4c/0x90 Oct 4 15:55:50 localhost kernel: [<ffffffff8149803b>] system_call_fastpath+0x16/0x1b Oct 4 15:55:50 localhost kernel: BUG: spinlock lockup on CPU#3, flush-9:127/2391, ffff880419c37200 Oct 4 15:55:50 localhost kernel: Pid: 2391, comm: flush-9:127 Tainted: G W 3.0.4-gentoo-r1 #7 Oct 4 15:55:50 localhost kernel: Call Trace: Oct 4 15:55:50 localhost kernel: [<ffffffff81267866>] do_raw_spin_lock+0x156/0x170 Oct 4 15:55:50 localhost kernel: [<ffffffff81496c74>] _raw_spin_lock_irq+0x44/0x50 Oct 4 15:55:50 localhost kernel: [<ffffffff8138db45>] ? get_active_stripe+0x35/0x6f0 Oct 4 15:55:50 localhost kernel: [<ffffffff8138db45>] get_active_stripe+0x35/0x6f0 Oct 4 15:55:50 localhost kernel: [<ffffffff8107b462>] ? mark_held_locks+0x72/0xa0 Oct 4 15:55:50 localhost kernel: [<ffffffff8103fa41>] ? get_parent_ip+0x11/0x50 Oct 4 15:55:50 localhost kernel: [<ffffffff8103fb15>] ? sub_preempt_count+0x95/0xd0 Oct 4 15:55:50 localhost kernel: [<ffffffff814974ad>] ? _raw_spin_unlock_irqrestore+0x3d/0x70 Oct 4 15:55:50 localhost kernel: [<ffffffff810646cb>] ? prepare_to_wait+0x5b/0x90 Oct 4 15:55:50 localhost kernel: [<ffffffff81391bb8>] make_request+0x1a8/0x720 Oct 4 15:55:50 localhost kernel: [<ffffffff81064430>] ? wake_up_bit+0x40/0x40 Oct 4 15:55:50 localhost kernel: [<ffffffff8139c6be>] md_make_request+0x16e/0x2f0 Oct 4 15:55:50 localhost kernel: [<ffffffff8139c5a8>] ? md_make_request+0x58/0x2f0 Oct 4 15:55:50 localhost kernel: [<ffffffff810fcbb3>] ? kmem_cache_alloc+0x33/0xc0 Oct 4 15:55:50 localhost kernel: [<ffffffff81242dac>] generic_make_request+0x14c/0x2f0 Oct 4 15:55:50 localhost kernel: [<ffffffff81242fb1>] submit_bio+0x61/0xd0 Oct 4 15:55:50 localhost kernel: [<ffffffff81131e26>] submit_bh+0xe6/0x120 Oct 4 15:55:50 localhost kernel: [<ffffffff811352c7>] __block_write_full_page+0x1f7/0x370 Oct 4 15:55:50 localhost kernel: [<ffffffff81133db0>] ? block_read_full_page+0x3b0/0x3b0 Oct 4 15:55:50 localhost kernel: [<ffffffff81138040>] ? I_BDEV+0x10/0x10 Oct 4 15:55:50 localhost kernel: [<ffffffff81138040>] ? I_BDEV+0x10/0x10 Oct 4 15:55:50 localhost kernel: [<ffffffff8113552e>] block_write_full_page_endio+0xee/0x130 Oct 4 15:55:50 localhost kernel: [<ffffffff8107b462>] ? mark_held_locks+0x72/0xa0 Oct 4 15:55:50 localhost kernel: [<ffffffff81135580>] block_write_full_page+0x10/0x20 Oct 4 15:55:50 localhost kernel: [<ffffffff81138ef3>] blkdev_writepage+0x13/0x20 Oct 4 15:55:50 localhost kernel: [<ffffffff810c5925>] __writepage+0x15/0x50 Oct 4 15:55:50 localhost kernel: [<ffffffff810c60a1>] write_cache_pages+0x1f1/0x420 Oct 4 15:55:50 localhost kernel: [<ffffffff810c5910>] ? set_page_dirty+0x70/0x70 Oct 4 15:55:50 localhost kernel: [<ffffffff810c6318>] generic_writepages+0x48/0x60 Oct 4 15:55:50 localhost kernel: [<ffffffff810c71ff>] do_writepages+0x1f/0x40 Oct 4 15:55:50 localhost kernel: [<ffffffff8112b5a9>] writeback_single_inode+0xf9/0x260 Oct 4 15:55:50 localhost kernel: [<ffffffff8112b988>] writeback_sb_inodes+0xe8/0x1c0 Oct 4 15:55:50 localhost kernel: [<ffffffff8112c4b3>] writeback_inodes_wb+0x83/0x180 Oct 4 15:55:50 localhost kernel: [<ffffffff8112c86b>] wb_writeback+0x2bb/0x330 Oct 4 15:55:50 localhost kernel: [<ffffffff8103fb15>] ? sub_preempt_count+0x95/0xd0 Oct 4 15:55:50 localhost kernel: [<ffffffff8112cb20>] wb_do_writeback+0x240/0x250 Oct 4 15:55:50 localhost kernel: [<ffffffff8112cbc2>] bdi_writeback_thread+0x92/0x180 Oct 4 15:55:50 localhost kernel: [<ffffffff8112cb30>] ? wb_do_writeback+0x250/0x250 Oct 4 15:55:50 localhost kernel: [<ffffffff81063f36>] kthread+0x96/0xa0 Oct 4 15:55:50 localhost kernel: [<ffffffff81499194>] kernel_thread_helper+0x4/0x10 Oct 4 15:55:50 localhost kernel: [<ffffffff810368b0>] ? finish_task_switch+0x80/0x110 Oct 4 15:55:50 localhost kernel: [<ffffffff814978c4>] ? retint_restore_args+0xe/0xe Oct 4 15:55:50 localhost kernel: [<ffffffff81063ea0>] ? __init_kthread_worker+0x70/0x70 Oct 4 15:55:50 localhost kernel: [<ffffffff81499190>] ? gs_change+0xb/0xb Why date a failure to report?What next? Thanks. --- ParamonovValery. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html