Re: hpsa: hung task on boot

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On Sun, 2018-02-18 at 17:03 +0200, Mark Bloch wrote:
> Hi,
> 
> Trying to boot 4.16-rc1 I'm hitting this:
> 
> [   68.600133] hpsa 0000:02:00.0: scsi 2:1:0:0: resetting
> logical  Direct-Access     HP       LOGICAL VOLUME   RAID-0
> SSDSmartPathCap- En- Exp=1              
> [   97.391584] systemd-udevd[361]: seq 3310
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda7' is taking a long time    
> [   97.464708] systemd-udevd[361]: seq 3308
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda5' is taking a long time    
> [   97.529588] systemd-udevd[361]: seq 3307
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda2' is taking a long time    
> [   97.594326] systemd-udevd[361]: seq 3306
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda1' is taking a long time    
> [   97.661573] systemd-udevd[361]: seq 3309
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda6' is taking a long time    
> [  217.391581] systemd-udevd[361]: seq 3306
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda1' killed                   
> [  217.456892] systemd-udevd[361]: seq 3308
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda5' killed                   
> [  217.519926] systemd-udevd[361]: seq 3310
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda7' killed                   
> [  217.579005] systemd-udevd[361]: seq 3307
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda2' killed                   
> [  217.638554] systemd-udevd[361]: seq 3309
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda6' killed                   
> [  217.697731] systemd-udevd[361]: worker [392] terminated by signal
> 9
> (Killed)                                                             
>                   
> [  217.731567] systemd-udevd[361]: worker [392] failed while handling
> '/devices/pci0000:00/0000:00:02.2/0000:02:00.0/host2/target2:1:0/2:1:
> 0:0/block/sda/sda1'
> [  242.652048] INFO: task scsi_eh_2:405 blocked for more than 120
> seconds.                                                             
>                        
> [  242.687059]       Not tainted 4.16.0-rc1+
> #20                                                                  
>                                             
> [  242.710430] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this
> message.                                                             
>          
> [  242.748217] scsi_eh_2       D    0   405      2
> 0x80000000                                                           
>                                       
> [  242.776101] Call
> Trace:                                                               
>                                                                      
> [  242.789343]  ?
> __schedule+0x3cb/0x850                                               
>                                                                      
>   
> [  242.808664]  schedule+0x32/0x80                                   
>                                                                      
>                     
> [  242.824328]  hpsa_eh_device_reset_handler+0x6b2/0x720
> [hpsa]                                                               
>                                 
> [  242.851889]  ?
> wait_woken+0x80/0x80                                                 
>                                                                      
>   
> [  242.870089]  scsi_eh_ready_devs+0x35a/0xc10                       
>                                                                      
>                     
> [  242.890486]  ?
> __pm_runtime_resume+0x54/0x70                                        
>                                                                      
>   
> [  242.911263]  scsi_error_handler+0x4dc/0x5d0                       
>                                                                      
>                     
> [  242.931646]  kthread+0xf5/0x130                                   
>                                                                      
>                     
> [  242.947270]  ?
> scsi_eh_get_sense+0x210/0x210                                        
>                                                                      
>   
> [  242.968063]  ?
> kthread_create_worker_on_cpu+0x70/0x70                               
>                                                                      
>   
> [  242.992494]  ret_from_fork+0x35/0x40                              
>                                                                      
>                     
> [  363.484028] INFO: task systemd-udevd:379 blocked for more than 120
> seconds.                                                             
>                    
> [  363.521118]       Not tainted 4.16.0-rc1+
> #20                                                                  
>                                             
> [  363.545331] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this
> message.                                                             
>          
> [  363.583333] systemd-udevd   D    0   379    361
> 0x80000006                                                           
>                                       
> [  363.609509] Call
> Trace:                                                               
>                                                                      
> [  363.621716]  ?
> __schedule+0x3cb/0x850                                               
>                                                                      
>   
> [  363.639944]  schedule+0x32/0x80                                   
>                                                                      
>                     
> [  363.655934]  io_schedule+0x12/0x40                                
>                                                                      
>                     
> [  363.672515]  __lock_page+0xfb/0x140                               
>                                                                      
>                     
> [  363.689496]  ?
> page_cache_tree_insert+0xe0/0xe0                                     
>                                                                      
>   
> [  363.711315]  truncate_inode_pages_range+0x4ef/0x880               
>                                                                      
>                     
> [  363.734728]  ?
> select_task_rq_fair+0x4b3/0xc10                                      
>                                                                      
>   
> [  363.756522]  ?
> find_get_pages_range_tag+0x189/0x240                                 
>                                                                      
>   
> [  363.779725]  ?
> show_free_areas+0x461/0x900                                          
>                                                                      
>   
> [  363.799331]  ?
> pagevec_lookup_range_tag+0x24/0x30                                   
>                                                                      
>   
> [  363.821747]  ?
> __filemap_fdatawait_range+0x7d/0x130                                 
>                                                                      
>   
> [  363.844956]  ?
> cpumask_next_and+0x1a/0x20                                           
>                                                                      
>   
> [  363.864801]  ?
> smp_call_function_many+0x5b/0x250                                    
>                                                                      
>   
> [  363.887130]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  363.903152]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  363.919106]  ?
> on_each_cpu_mask+0x23/0x60                                           
>                                                                      
>   
> [  363.938325]  ?
> proc_ns_fget+0x40/0x40                                               
>                                                                      
>   
> [  363.955719]  ?
> on_each_cpu_cond+0xb2/0x140                                          
>                                                                      
>   
> [  363.975129]  __blkdev_put+0x76/0x200                              
>                                                                      
>                     
> [  363.992096]  ?
> disk_flush_events+0x5c/0x60                                          
>                                                                      
>   
> [  364.012562]  blkdev_close+0x21/0x30                               
>                                                                      
>                     
> [  364.029730]  __fput+0xd5/0x210                                    
>                                                                      
>                     
> [  364.045169]  task_work_run+0x84/0xa0                              
>                                                                      
>                     
> [  364.062456]  do_exit+0x2e0/0xae0                                  
>                                                                      
>                     
> [  364.079953]  ?
> touch_atime+0xc1/0xd0                                                
>                                                                      
>   
> [  364.098231]  do_group_exit+0x3a/0xa0                              
>                                                                      
>                     
> [  364.116796]  get_signal+0x29b/0x610                               
>                                                                      
>                     
> [  364.134796]  do_signal+0x36/0x6a0                                 
>                                                                      
>                     
> [  364.151819]  ?
> vfs_read+0x91/0x130                                                  
>                                                                      
>   
> [  364.167945]  exit_to_usermode_loop+0x88/0xc0                      
>                                                                      
>                     
> [  364.188401]  do_syscall_64+0xe7/0x120                             
>                                                                      
>                     
> [  364.205569]  entry_SYSCALL_64_after_hwframe+0x21/0x86             
>                                                                      
>                     
> [  364.229235] RIP:
> 0033:0x7f332b31f6d0                                                  
>                                                                      
> [  364.246045] RSP: 002b:00007ffff0bce8e8 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000000                                                     
>                     
> [  364.281274] RAX: fffffffffffffffc RBX: 0000559be683fb10 RCX:
> 00007f332b31f6d0                                                     
>                          
> [  364.314540] RDX: 0000000000000400 RSI: 0000559be683fb38 RDI:
> 000000000000000d                                                     
>                          
> [  364.347939] RBP: 0000559be6835cd0 R08: 00007f332b309ee8 R09:
> 0000000000000000                                                     
>                          
> [  364.381191] R10: 000000000000006b R11: 0000000000000246 R12:
> 0000000000000000                                                     
>                          
> [  364.414513] R13: 0000000000000400 R14: 0000559be6835d20 R15:
> 0000000000000400                                                     
>                          
> [  364.450149] INFO: task systemd-udevd:383 blocked for more than 120
> seconds.                                                             
>                    
> [  364.484411]       Not tainted 4.16.0-rc1+
> #20                                                                  
>                                             
> [  364.504947] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this
> message.                                                             
>          
> [  364.541386] systemd-udevd   D    0   383    361
> 0x80000006                                                           
>                                       
> [  364.567293] Call
> Trace:                                                               
>                                                                      
> [  364.578993]  ?
> __schedule+0x3cb/0x850                                               
>                                                                      
>   
> [  364.597658]  schedule+0x32/0x80                                   
>                                                                      
>                     
> [  364.614136]  io_schedule+0x12/0x40                                
>                                                                      
>                     
> [  364.631998]  __lock_page+0xfb/0x140                               
>                                                                      
>                     
> [  364.650190]  ?
> page_cache_tree_insert+0xe0/0xe0                                     
>                                                                      
>   
> [  364.674101]  truncate_inode_pages_range+0x4ef/0x880               
>                                                                      
>                     
> [  364.696914]  ?
> select_task_rq_fair+0x4b3/0xc10                                      
>                                                                      
>   
> [  364.717758]  ?
> find_get_pages_range_tag+0x189/0x240                                 
>                                                                      
>   
> [  364.740645]  ?
> show_free_areas+0x461/0x900                                          
>                                                                      
>   
> [  364.760003]  ?
> pagevec_lookup_range_tag+0x24/0x30                                   
>                                                                      
>   
> [  364.782208]  ?
> __filemap_fdatawait_range+0x7d/0x130                                 
>                                                                      
>   
> [  364.805078]  ?
> cpumask_next_and+0x1a/0x20                                           
>                                                                      
>   
> [  364.823888]  ?
> smp_call_function_many+0x5b/0x250                                    
>                                                                      
>   
> [  364.845497]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  364.861105]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  364.876728]  ?
> on_each_cpu_mask+0x23/0x60                                           
>                                                                      
>   
> [  364.896769]  ?
> proc_ns_fget+0x40/0x40                                               
>                                                                      
>   
> [  364.914174]  ?
> on_each_cpu_cond+0xb2/0x140                                          
>                                                                      
>   
> [  364.933370]  __blkdev_put+0x76/0x200                              
>                                                                      
>                     
> [  364.950209]  ?
> disk_flush_events+0x5c/0x60                                          
>                                                                      
>   
> [  364.969419]  blkdev_close+0x21/0x30                               
>                                                                      
>                     
> [  364.985873]  __fput+0xd5/0x210                                    
>                                                                      
>                     
> [  365.000261]  task_work_run+0x84/0xa0                              
>                                                                      
>                     
> [  365.017090]  do_exit+0x2e0/0xae0                                  
>                                                                      
>                     
> [  365.032296]  ?
> touch_atime+0xc1/0xd0                                                
>                                                                      
>   
> [  365.049108]  do_group_exit+0x3a/0xa0                              
>                                                                      
>                     
> [  365.066216]  get_signal+0x29b/0x610                               
>                                                                      
>                     
> [  365.083800]  do_signal+0x36/0x6a0                                 
>                                                                      
>                     
> [  365.100525]  ?
> vfs_read+0x91/0x130                                                  
>                                                                      
>   
> [  365.118129]  exit_to_usermode_loop+0x88/0xc0                      
>                                                                      
>                     
> [  365.140427]  do_syscall_64+0xe7/0x120                             
>                                                                      
>                     
> [  365.159571]  entry_SYSCALL_64_after_hwframe+0x21/0x86             
>                                                                      
>                     
> [  365.185726] RIP:
> 0033:0x7f332b31f6d0                                                  
>                                                                      
> [  365.204122] RSP: 002b:00007ffff0bce918 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000000                                                     
>                     
> [  365.241380] RAX: fffffffffffffffc RBX: 0000559be683fba0 RCX:
> 00007f332b31f6d0                                                     
>                          
> [  365.274783] RDX: 0000000000000040 RSI: 0000559be683fbc8 RDI:
> 000000000000000d                                                     
>                          
> [  365.308016] RBP: 0000559be683fc50 R08: 00007f332b30a148 R09:
> 0000000000000070                                                     
>                          
> [  365.341263] R10: 000000000000006b R11: 0000000000000246 R12:
> 00000000772f0000                                                     
>                          
> [  365.374685] R13: 00000000772f0040 R14: 0000559be683fca0 R15:
> 0000000000000040                                                     
>                          
> [  365.407915] INFO: task systemd-udevd:387 blocked for more than 120
> seconds.                                                             
>                    
> [  365.447179]       Not tainted 4.16.0-rc1+
> #20                                                                  
>                                             
> [  365.467796] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this
> message.                                                             
>          
> [  365.504458] systemd-udevd   D    0   387    361
> 0x80000006                                                           
>                                       
> [  365.530259] Call
> Trace:                                                               
>                                                                      
> [  365.541876]  ?
> __schedule+0x3cb/0x850                                               
>                                                                      
>   
> [  365.559052]  schedule+0x32/0x80                                   
>                                                                      
>                     
> [  365.573895]  io_schedule+0x12/0x40                                
>                                                                      
>                     
> [  365.589900]  __lock_page+0xfb/0x140                               
>                                                                      
>                     
> [  365.606318]  ?
> page_cache_tree_insert+0xe0/0xe0                                     
>                                                                      
>   
> [  365.627558]  truncate_inode_pages_range+0x4ef/0x880               
>                                                                      
>                     
> [  365.650815]  ?
> select_task_rq_fair+0x4b3/0xc10                                      
>                                                                      
>   
> [  365.673259]  ?
> find_get_pages_range_tag+0x189/0x240                                 
>                                                                      
>   
> [  365.698674]  ?
> show_free_areas+0x461/0x900                                          
>                                                                      
>   
> [  365.720046]  ?
> pagevec_lookup_range_tag+0x24/0x30                                   
>                                                                      
>   
> [  365.742103]  ?
> __filemap_fdatawait_range+0x7d/0x130                                 
>                                                                      
>   
> [  365.765514]  ?
> cpumask_next_and+0x1a/0x20                                           
>                                                                      
>   
> [  365.784341]  ?
> smp_call_function_many+0x5b/0x250                                    
>                                                                      
>   
> [  365.805952]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  365.821575]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  365.837174]  ?
> on_each_cpu_mask+0x23/0x60                                           
>                                                                      
>   
> [  365.855979]  ?
> proc_ns_fget+0x40/0x40                                               
>                                                                      
>   
> [  365.873223]  ?
> on_each_cpu_cond+0xb2/0x140                                          
>                                                                      
>   
> [  365.892436]  __blkdev_put+0x76/0x200                              
>                                                                      
>                     
> [  365.910691]  ?
> disk_flush_events+0x5c/0x60                                          
>                                                                      
>   
> [  365.930074]  blkdev_close+0x21/0x30                               
>                                                                      
>                     
> [  365.946488]  __fput+0xd5/0x210                                    
>                                                                      
>                     
> [  365.960952]  task_work_run+0x84/0xa0                              
>                                                                      
>                     
> [  365.977945]  do_exit+0x2e0/0xae0                                  
>                                                                      
>                     
> [  365.993173]  ?
> touch_atime+0xc1/0xd0                                                
>                                                                      
>   
> [  366.009982]  do_group_exit+0x3a/0xa0                              
>                                                                      
>                     
> [  366.026783]  get_signal+0x29b/0x610                               
>                                                                      
>                     
> [  366.043198]  do_signal+0x36/0x6a0                                 
>                                                                      
>                     
> [  366.058814]  ?
> vfs_read+0x91/0x130                                                  
>                                                                      
>   
> [  366.074833]  exit_to_usermode_loop+0x88/0xc0                      
>                                                                      
>                     
> [  366.094861]  do_syscall_64+0xe7/0x120                             
>                                                                      
>                     
> [  366.112088]  entry_SYSCALL_64_after_hwframe+0x21/0x86             
>                                                                      
>                     
> [  366.137357] RIP:
> 0033:0x7f332b31f6d0                                                  
>                                                                      
> [  366.155255] RSP: 002b:00007ffff0bce868 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000000                                                     
>                     
> [  366.201501] RAX: fffffffffffffffc RBX: 0000559be6836040 RCX:
> 00007f332b31f6d0                                                     
>                          
> [  366.238422] RDX: 0000000000000040 RSI: 0000559be6836068 RDI:
> 000000000000000d                                                     
>                          
> [  366.275081] RBP: 0000559be683fcb0 R08: 00007f332b30a128 R09:
> 0000000000000070                                                     
>                          
> [  366.308324] R10: 000000000000006b R11: 0000000000000246 R12:
> 0000000a7a1f0000                                                     
>                          
> [  366.341360] R13: 0000000a7a1f0040 R14: 0000559be683fd00 R15:
> 0000000000000040                                                     
>                          
> [  366.374789] INFO: task systemd-udevd:402 blocked for more than 120
> seconds.                                                             
>                    
> [  366.407232]       Not tainted 4.16.0-rc1+
> #20                                                                  
>                                             
> [  366.427637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this
> message.                                                             
>          
> [  366.464095] systemd-udevd   D    0   402    361
> 0x80000006                                                           
>                                       
> [  366.489925] Call
> Trace:                                                               
>                                                                      
> [  366.501537]  ?
> __schedule+0x3cb/0x850                                               
>                                                                      
>   
> [  366.518933]  schedule+0x32/0x80                                   
>                                                                      
>                     
> [  366.535436]  io_schedule+0x12/0x40                                
>                                                                      
>                     
> [  366.552261]  __lock_page+0xfb/0x140                               
>                                                                      
>                     
> [  366.569671]  ?
> page_cache_tree_insert+0xe0/0xe0                                     
>                                                                      
>   
> [  366.591036]  truncate_inode_pages_range+0x4ef/0x880               
>                                                                      
>                     
> [  366.613648]  ?
> select_task_rq_fair+0x4b3/0xc10                                      
>                                                                      
>   
> [  366.634697]  ?
> find_get_pages_range_tag+0x189/0x240                                 
>                                                                      
>   
> [  366.657686]  ?
> show_free_areas+0x461/0x900                                          
>                                                                      
>   
> [  366.676903]  ?
> pagevec_lookup_range_tag+0x24/0x30                                   
>                                                                      
>   
> [  366.698918]  ?
> __filemap_fdatawait_range+0x7d/0x130                                 
>                                                                      
>   
> [  366.723657]  ?
> cpumask_next_and+0x1a/0x20                                           
>                                                                      
>   
> [  366.744559]  ?
> smp_call_function_many+0x5b/0x250                                    
>                                                                      
>   
> [  366.769116]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  366.786240]  ?
> __brelse+0x20/0x20                                                   
>                                                                      
>   
> [  366.801838]  ?
> on_each_cpu_mask+0x23/0x60                                           
>                                                                      
>   
> [  366.820652]  ?
> proc_ns_fget+0x40/0x40                                               
>                                                                      
>   
> [  366.837871]  ?
> on_each_cpu_cond+0xb2/0x140                                          
>                                                                      
>   
> [  366.857074]  __blkdev_put+0x76/0x200                              
>                                                                      
>                     
> [  366.873914]  ?
> disk_flush_events+0x5c/0x60                                          
>                                                                      
>   
> [  366.893340]  blkdev_close+0x21/0x30                               
>                                                                      
>                     
> [  366.909954]  __fput+0xd5/0x210                                    
>                                                                      
>                     
> [  366.924823]  task_work_run+0x84/0xa0                              
>                                                                      
>                     
> [  366.942276]  do_exit+0x2e0/0xae0                                  
>                                                                      
>                     
> [  366.957594]  ?
> touch_atime+0xc1/0xd0                                                
>                                                                      
>   
> [  366.974420]  do_group_exit+0x3a/0xa0                              
>                                                                      
>                     
> [  366.991233]  get_signal+0x29b/0x610                               
>                                                                      
>                     
> [  367.007710]  do_signal+0x36/0x6a0                                 
>                                                                      
>                     
> [  367.023499]  ?
> vfs_read+0x91/0x130                                                  
>                                                                      
>   
> [  367.039482]  exit_to_usermode_loop+0x88/0xc0                      
>                                                                      
>                     
> [  367.059507]  do_syscall_64+0xe7/0x120                             
>                                                                      
>                     
> [  367.076718]  entry_SYSCALL_64_after_hwframe+0x21/0x86             
>                                                                      
>                     
> [  367.100443] RIP:
> 0033:0x7f332b31f6d0                                                  
>                                                                      
> [  367.117380] RSP: 002b:00007ffff0bce918 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000000                                                     
>                     
> [  367.152690] RAX: fffffffffffffffc RBX: 0000559be68677a0 RCX:
> 00007f332b31f6d0                                                     
>                          
> [  367.187303] RDX: 0000000000000040 RSI: 0000559be68677c8 RDI:
> 000000000000000e                                                     
>                          
> [  367.223247] RBP: 0000559be6867660 R08: 00007f332b30a2c8 R09:
> 0000000000000070                                                     
>                          
> [  367.260423] R10: 000000000000006b R11: 0000000000000246 R12:
> 000000804e2f0000                                                     
>                          
> [  367.297417] R13: 000000804e2f0040 R14: 0000559be68676b0 R15:
> 0000000000000040                                                     
>                          
> [  367.330436] INFO: task scsi_eh_2:405 blocked for more than 120
> seconds.                                                             
>                        
> [  367.361467]       Not tainted 4.16.0-rc1+
> #20                                                                  
>                                             
> [  367.381702] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this
> message.                                                             
>          
> [  367.418428] scsi_eh_2       D    0   405      2
> 0x80000000                                                           
>                                       
> [  367.444172] Call
> Trace:                                                               
>                                                                      
> [  367.455964]  ?
> __schedule+0x3cb/0x850                                               
>                                                                      
>   
> [  367.473156]  schedule+0x32/0x80                                   
>                                                                      
>                     
> [  367.487976]  hpsa_eh_device_reset_handler+0x6b2/0x720
> [hpsa]                                                               
>                                 
> [  367.514412]  ?
> wait_woken+0x80/0x80                                                 
>                                                                      
>   
> [  367.530819]  scsi_eh_ready_devs+0x35a/0xc10                       
>                                                                      
>                     
> [  367.550454]  ?
> __pm_runtime_resume+0x54/0x70                                        
>                                                                      
>   
> [  367.570472]  scsi_error_handler+0x4dc/0x5d0                       
>                                                                      
>                     
> [  367.590109]  kthread+0xf5/0x130
> [  367.604912]  ? scsi_eh_get_sense+0x210/0x210
> [  367.624934]  ? kthread_create_worker_on_cpu+0x70/0x70
> [  367.648558]  ret_from_fork+0x35/0x40
> [  367.665362] INFO: task kworker/u130:1:413 blocked for more than
> 120 seconds.
> [  367.697847]       Not tainted 4.16.0-rc1+ #20
> [  367.718529] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this message.
> [  367.758398] kworker/u130:1  D    0   413      2 0x80000000
> [  367.787859] Workqueue: events_freezable_power_ disk_events_workfn
> [  367.824862] Call Trace:
> [  367.837554]  ? __schedule+0x3cb/0x850
> [  367.859785]  ? __slab_free+0x11c/0x330
> [  367.881283]  schedule+0x32/0x80
> [  367.898395]  scsi_block_when_processing_errors+0xd4/0x110
> [  367.925576]  ? wait_woken+0x80/0x80
> [  367.942277]  sd_check_events+0xe6/0x1a0
> [  367.961470]  disk_check_events+0x63/0x150
> [  367.980183]  process_one_work+0x1e3/0x3c0
> [  367.999215]  worker_thread+0x4a/0x410
> [  368.016884]  kthread+0xf5/0x130
> [  368.031813]  ? rescuer_thread+0x380/0x380
> [  368.050844]  ? kthread_create_worker_on_cpu+0x70/0x70
> [  368.074696]  ? kthread_create_worker_on_cpu+0x70/0x70
> [  368.098503]  ret_from_fork+0x35/0x40
> 
> 
> On the same machine 4.15 works without issues, the server is ProLiant
> DL380p Gen8,
> I believe the smart array is P420i. if any additional information
> is needed I'm more than happy to provide it.
> 
> Mark
> 

Hi Mark

Can you try please revert this commit and see if it works.
commit 84676c1f21e8ff54befe985f4f14dc1edc10046b

Thanks
Laurence





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