* Re: [PATCH v2] blk-rq-qos: remove redundant finish_wait to rq_qos_wait.
[not found] <20200628135625.3396636-1-guoxuenan@huawei.com>
@ 2020-07-14 23:21 ` Qian Cai
2020-07-15 2:19 ` Stephen Rothwell
0 siblings, 1 reply; 3+ messages in thread
From: Qian Cai @ 2020-07-14 23:21 UTC (permalink / raw)
To: Guo Xuenan
Cc: axboe, linux-block, wangli74, fangwei1, ming.lei, josef, sfr,
linux-next, linux-kernel
On Sun, Jun 28, 2020 at 09:56:25AM -0400, Guo Xuenan wrote:
> It is no need do finish_wait twice after acquiring inflight.
>
> Signed-off-by: Guo Xuenan <guoxuenan@huawei.com>
> ---
> block/blk-rq-qos.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c
> index 656460636ad3..18f3eab9f768 100644
> --- a/block/blk-rq-qos.c
> +++ b/block/blk-rq-qos.c
> @@ -273,8 +273,6 @@ void rq_qos_wait(struct rq_wait *rqw, void *private_data,
> if (data.got_token)
> break;
> if (!has_sleeper && acquire_inflight_cb(rqw, private_data)) {
> - finish_wait(&rqw->wait, &data.wq);
> -
> /*
> * We raced with wbt_wake_function() getting a token,
> * which means we now have two. Put our local token
> --
> 2.25.4
Reverting this commit fixed an issue that swapping workloads will stall for
days without being able to make any progress below.
One reproducer:
# git clone https://gitlab.com/cailca/linux-mm
# cd linux-mm; make
# ./random 5 (just mmap and CoW)
(x86.config is also in the repo. May need to run a few times.)
This happens on a few x86 bare-metal servers and is reproducible within 30
iterations. Reverting the commit makes it run smoothly to recover from the
kernel OOM-killer for hundreds of interations. For example, this affected
server,
Dell Poweredge R6415
AMD EPYC 7401P 24-Core Processor
24576 MB memory, 239 GB disk space
has the swapping partition on LVM and megaraid_sas.
[ 1244.008647][ T329] INFO: task NetworkManager:1191 blocked for more than 120 seconds.
[ 1244.102508][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1244.174462][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1244.276589][ T329] NetworkManager D22456 1191 1 0x00000000
[ 1244.350636][ T329] Call Trace:
[ 1244.388292][ T329] __schedule+0x768/0x1ba0
context_switch at kernel/sched/core.c:3448
(inlined by) __schedule at kernel/sched/core.c:4169
[ 1244.439457][ T329] ? __sched_text_start+0x8/0x8
[ 1244.495826][ T329] ? prepare_to_wait_exclusive+0x132/0x300
[ 1244.563623][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1244.621041][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1244.675322][ T329] schedule+0xc1/0x2b0
[ 1244.722331][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1244.775583][ T329] io_schedule+0x17/0x60
[ 1244.824664][ T329] rq_qos_wait+0x1ce/0x330
[ 1244.875838][ T329] ? __wbt_done+0x30/0x30
[ 1244.925965][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1244.985452][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1245.042855][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1245.103386][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1245.157667][ T329] ? print_irqtrace_events+0x270/0x270
[ 1245.221321][ T329] wbt_wait+0x144/0x290
[ 1245.269369][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1245.324694][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1245.382103][ T329] __rq_qos_throttle+0x47/0x90
[ 1245.437437][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1245.495882][ T329] ? lock_downgrade+0x720/0x720
[ 1245.552242][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1245.620068][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1245.684743][ T329] ? lock_downgrade+0x720/0x720
[ 1245.741111][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1245.802681][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1245.860081][ T329] ? lock_downgrade+0x720/0x720
[ 1245.916447][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1245.978029][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1246.042708][ T329] submit_bio_noacct+0x845/0xe90
[ 1246.100119][ T329] ? _cond_resched+0x10/0x20
[ 1246.153365][ T329] ? write_cache_pages+0x6c3/0xf40
[ 1246.212850][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1246.270262][ T329] ? submit_bio+0xe7/0x480
[ 1246.321423][ T329] submit_bio+0xe7/0x480
[ 1246.370511][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1246.430006][ T329] ? lock_downgrade+0x720/0x720
[ 1246.486366][ T329] ? rcu_read_unlock+0x50/0x50
[ 1246.541698][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1246.600143][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1246.657551][ T329] iomap_submit_ioend+0x105/0x200
[ 1246.716001][ T329] ? iomap_writepages+0x3d/0xa0
[ 1246.772369][ T329] xfs_vm_writepages+0xd7/0x130
[ 1246.828739][ T329] ? xfs_iomap_swapfile_activate+0x160/0x160
[ 1246.898624][ T329] ? find_held_lock+0x33/0x1c0
[ 1246.953953][ T329] do_writepages+0xcd/0x250
[ 1247.006158][ T329] ? lock_downgrade+0x720/0x720
[ 1247.062531][ T329] ? page_writeback_cpu_online+0x10/0x10
[ 1247.128258][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1247.186701][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1247.244118][ T329] __filemap_fdatawrite_range+0x247/0x310
[ 1247.310884][ T329] ? delete_from_page_cache_batch+0xac0/0xac0
[ 1247.381811][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1247.446491][ T329] file_write_and_wait_range+0x85/0xe0
[ 1247.510146][ T329] xfs_file_fsync+0x19a/0x7a0
[ 1247.564428][ T329] ? xfs_file_read_iter+0x6b0/0x6b0
[ 1247.624953][ T329] do_fsync+0x33/0x70
[ 1247.670931][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1247.729371][ T329] __x64_sys_fsync+0x2a/0x40
[ 1247.782626][ T329] do_syscall_64+0x5f/0x310
[ 1247.834833][ T329] ? trace_hardirqs_off+0x12/0x1a0
[ 1247.894316][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1247.951722][ T329] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1248.020573][ T329] RIP: 0033:0x7feaeccf1107
[ 1248.071736][ T329] Code: Bad RIP value.
[ 1248.118745][ T329] RSP: 002b:00007ffd031c7650 EFLAGS: 00000293 ORIG_RAX: 000000000000004a
[ 1248.217755][ T329] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007feaeccf1107
[ 1248.311557][ T329] RDX: 0000000000000000 RSI: 00007ffd031c7680 RDI: 0000000000000018
[ 1248.405368][ T329] RBP: 0000000000000018 R08: 0000000000000000 R09: 0000000000027c38
[ 1248.499173][ T329] R10: 000000000000003d R11: 0000000000000293 R12: 00007feaef4beec8
[ 1248.592990][ T329] R13: 00005594769c3be0 R14: 00005594769d2a8d R15: 0000000000000000
[ 1248.686829][ T329] INFO: task gmain:1219 blocked for more than 124 seconds.
[ 1248.771246][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1248.843204][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1248.945333][ T329] gmain D20120 1219 1 0x00004000
[ 1249.019374][ T329] Call Trace:
[ 1249.057034][ T329] __schedule+0x768/0x1ba0
[ 1249.108197][ T329] ? __sched_text_start+0x8/0x8
[ 1249.164608][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1249.232374][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1249.289777][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1249.344062][ T329] schedule+0xc1/0x2b0
[ 1249.391086][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1249.444330][ T329] io_schedule+0x17/0x60
[ 1249.493413][ T329] rq_qos_wait+0x1ce/0x330
[ 1249.544581][ T329] ? __wbt_done+0x30/0x30
[ 1249.594706][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1249.654193][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1249.711602][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1249.772126][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1249.826415][ T329] ? print_irqtrace_events+0x270/0x270
[ 1249.890070][ T329] wbt_wait+0x144/0x290
[ 1249.938113][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1249.993437][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1250.050851][ T329] __rq_qos_throttle+0x47/0x90
[ 1250.106175][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1250.164621][ T329] ? lock_downgrade+0x720/0x720
[ 1250.221035][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1250.288806][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1250.353489][ T329] ? lock_downgrade+0x720/0x720
[ 1250.409851][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1250.471419][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1250.528831][ T329] ? lock_downgrade+0x720/0x720
[ 1250.585198][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1250.646766][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1250.711454][ T329] submit_bio_noacct+0x845/0xe90
[ 1250.768859][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1250.826266][ T329] ? find_held_lock+0x33/0x1c0
[ 1250.881598][ T329] ? mark_held_locks+0xb0/0x110
[ 1250.937959][ T329] ? submit_bio+0xe7/0x480
[ 1250.989130][ T329] submit_bio+0xe7/0x480
[ 1251.038220][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1251.097704][ T329] ? lock_downgrade+0x720/0x720
[ 1251.154076][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1251.230206][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1251.300129][ T329] __swap_writepage+0xb29/0x15d0
[ 1251.357493][ T329] ? get_swap_bio+0x390/0x390
[ 1251.411806][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1251.479587][ T329] ? rcu_read_unlock+0x50/0x50
[ 1251.534917][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1251.593363][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1251.650773][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1251.716498][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1251.777026][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1251.836514][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1251.892882][ T329] ? page_swapcount+0xeb/0x180
[ 1251.948210][ T329] ? try_to_free_swap+0x487/0x670
[ 1252.006660][ T329] pageout+0x44b/0x1060
[ 1252.054706][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1252.107955][ T329] ? page_not_mapped+0x10/0x10
[ 1252.163279][ T329] ? page_get_anon_vma+0x290/0x290
[ 1252.222768][ T329] ? page_mapped+0xf2/0x2e0
[ 1252.274977][ T329] shrink_page_list+0x250f/0x3f10
[ 1252.333425][ T329] ? pageout+0x1060/0x1060
[ 1252.384591][ T329] ? mark_lock+0x50/0x1800
[ 1252.435761][ T329] ? find_held_lock+0x33/0x1c0
[ 1252.491088][ T329] ? print_irqtrace_events+0x270/0x270
[ 1252.554737][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1252.617343][ T329] ? mark_held_locks+0xb0/0x110
[ 1252.673710][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1252.743597][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1252.804125][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1252.862571][ T329] shrink_inactive_list+0x362/0xa10
[ 1252.923101][ T329] ? print_irqtrace_events+0x270/0x270
[ 1252.986747][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1253.048316][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1253.118204][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1253.175614][ T329] shrink_lruvec+0x841/0x19e0
[ 1253.229899][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1253.299788][ T329] ? shrink_active_list+0x1060/0x1060
[ 1253.362395][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1253.422922][ T329] ? lock_downgrade+0x720/0x720
[ 1253.479291][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1253.543979][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1253.602425][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1253.665032][ T329] shrink_node+0x42b/0x1700
[ 1253.717241][ T329] do_try_to_free_pages+0x348/0x1250
[ 1253.778809][ T329] ? shrink_node+0x1700/0x1700
[ 1253.834136][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1253.898823][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1253.960395][ T329] try_to_free_pages+0x244/0x690
[ 1254.017801][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1254.073127][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1254.143014][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1254.203542][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1254.261993][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1254.339158][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1254.404886][ T329] ? warn_alloc+0x120/0x120
[ 1254.457093][ T329] ? mark_held_locks+0xb0/0x110
[ 1254.513463][ T329] ? _raw_spin_unlock_irqrestore+0x39/0x40
[ 1254.581270][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1254.639719][ T329] ? __isolate_free_page+0x570/0x570
[ 1254.701284][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1254.763893][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1254.844181][ T329] xfs_buf_allocate_memory+0x33c/0xdf0
[ 1254.907828][ T329] xfs_buf_get_map+0x13b/0xe80
[ 1254.963156][ T329] ? xfs_buf_incore+0xd0/0xd0
[ 1255.017440][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1255.079009][ T329] ? xfs_buf_iowait+0x441/0x560
[ 1255.135377][ T329] xfs_buf_read_map+0xad/0x1130
[ 1255.191747][ T329] ? xfs_da_read_buf+0x1d4/0x2c0
[ 1255.249156][ T329] ? xfs_da_read_buf+0x1d4/0x2c0
[ 1255.306559][ T329] ? _xfs_buf_read+0x70/0x70
[ 1255.359810][ T329] xfs_trans_read_buf_map+0x2db/0xef0
[ 1255.422415][ T329] ? xfs_da_read_buf+0x1d4/0x2c0
[ 1255.479823][ T329] ? xfs_trans_read_buf_map+0x2db/0xef0
[ 1255.544512][ T329] ? xfs_trans_getsb+0x670/0x670
[ 1255.601920][ T329] ? mark_lock+0x147/0x1800
[ 1255.654127][ T329] xfs_da_read_buf+0x1d4/0x2c0
[ 1255.709455][ T329] ? xfs_da_read_buf+0x1f2/0x2c0
[ 1255.766863][ T329] ? xfs_da3_root_split+0xd50/0xd50
[ 1255.827392][ T329] ? xfs_da3_root_split+0xd50/0xd50
[ 1255.887919][ T329] ? mark_lock+0x147/0x1800
[ 1255.940129][ T329] ? print_irqtrace_events+0x270/0x270
[ 1256.003774][ T329] ? xfs_dir3_leaf_log_header+0xc0/0xc0
[ 1256.068460][ T329] xfs_dir3_data_read+0x20/0x290
[ 1256.125869][ T329] xfs_dir2_leaf_lookup_int+0x45e/0xaa0
[ 1256.190557][ T329] ? xfs_dir2_leaf_addname+0x1c10/0x1c10
[ 1256.256285][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1256.320972][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1256.382541][ T329] xfs_dir2_leaf_lookup+0x12c/0x630
[ 1256.443068][ T329] ? rcu_read_unlock+0x50/0x50
[ 1256.498396][ T329] ? xfs_dir2_leaf_lookup_int+0xaa0/0xaa0
[ 1256.565163][ T329] ? xfs_dir2_isleaf+0x84/0x1d0
[ 1256.621533][ T329] ? xfs_ilock+0x2ef/0x370
[ 1256.672698][ T329] xfs_dir_lookup+0x4e1/0x930
[ 1256.726986][ T329] ? xfs_dir_canenter+0x10/0x10
[ 1256.783353][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1256.848039][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1256.909608][ T329] xfs_lookup+0x13f/0x4a0
[ 1256.959737][ T329] ? xfs_ip2xflags+0xe0/0xe0
[ 1257.012987][ T329] ? __d_lookup_rcu+0x830/0x830
[ 1257.069351][ T329] xfs_vn_lookup+0x139/0x180
[ 1257.122600][ T329] ? xfs_vn_link+0x1b0/0x1b0
[ 1257.175849][ T329] ? lockdep_init_map_waits+0x267/0x7b0
[ 1257.240534][ T329] ? __raw_spin_lock_init+0x34/0x100
[ 1257.302104][ T329] __lookup_slow+0x211/0x3d0
[ 1257.355350][ T329] ? vfs_rmdir+0x440/0x440
[ 1257.406519][ T329] ? rcu_read_unlock+0x50/0x50
[ 1257.461847][ T329] ? __lock_acquire+0x1920/0x4da0
[ 1257.520292][ T329] walk_component+0x37b/0x5f0
[ 1257.574582][ T329] ? handle_dots.part.44+0x11d0/0x11d0
[ 1257.638232][ T329] ? generic_permission+0x3a/0x3b0
[ 1257.697716][ T329] link_path_walk+0x4d4/0xa30
[ 1257.752002][ T329] ? path_init+0xbbc/0x1490
[ 1257.804212][ T329] ? create_object+0x756/0xa70
[ 1257.859539][ T329] ? walk_component+0x5f0/0x5f0
[ 1257.915910][ T329] ? lock_downgrade+0x720/0x720
[ 1257.972276][ T329] path_lookupat+0x112/0x3a0
[ 1258.025525][ T329] filename_lookup.part.47+0x15c/0x290
[ 1258.089171][ T329] ? do_renameat2+0x900/0x900
[ 1258.143460][ T329] ? strncpy_from_user+0x8e/0x370
[ 1258.201907][ T329] ? getname_flags+0x88/0x3e0
[ 1258.256195][ T329] __x64_sys_inotify_add_watch+0x17e/0x930
[ 1258.324005][ T329] ? do_syscall_64+0x1f/0x310
[ 1258.378289][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1258.442978][ T329] ? switch_fpu_return+0x196/0x400
[ 1258.502466][ T329] ? __do_sys_inotify_init+0x10/0x10
[ 1258.564033][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1258.633920][ T329] ? do_syscall_64+0x24/0x310
[ 1258.688209][ T329] do_syscall_64+0x5f/0x310
[ 1258.740416][ T329] ? trace_hardirqs_off+0x12/0x1a0
[ 1258.799905][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1258.857310][ T329] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1258.926159][ T329] RIP: 0033:0x7feaeca198fb
[ 1258.977325][ T329] Code: Bad RIP value.
[ 1259.024331][ T329] RSP: 002b:00007feae6955818 EFLAGS: 00000202 ORIG_RAX: 00000000000000fe
[ 1259.123341][ T329] RAX: ffffffffffffffda RBX: 0000559476a1a900 RCX: 00007feaeca198fb
[ 1259.217148][ T329] RDX: 0000000001002fce RSI: 0000559476a21ff0 RDI: 000000000000000e
[ 1259.310956][ T329] RBP: 00007feae6955844 R08: 00007ffd031d0090 R09: 0000000000027a90
[ 1259.404765][ T329] R10: 0000000000027a90 R11: 0000000000000202 R12: 0000000000000000
[ 1259.498571][ T329] R13: 0000000000000000 R14: 00007feaed369120 R15: 0000559476a1ed60
[ 1259.592428][ T329] INFO: task runtest.sh:1543 blocked for more than 135 seconds.
[ 1259.682033][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1259.754012][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1259.856126][ T329] runtest.sh D21304 1543 1518 0x00004000
[ 1259.930173][ T329] Call Trace:
[ 1259.967820][ T329] __schedule+0x768/0x1ba0
[ 1260.018990][ T329] ? __sched_text_start+0x8/0x8
[ 1260.075355][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1260.143162][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1260.200573][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1260.254856][ T329] schedule+0xc1/0x2b0
[ 1260.301870][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1260.355116][ T329] io_schedule+0x17/0x60
[ 1260.404202][ T329] rq_qos_wait+0x1ce/0x330
[ 1260.455370][ T329] ? __wbt_done+0x30/0x30
[ 1260.505499][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1260.564985][ T329] ? find_held_lock+0x33/0x1c0
[ 1260.620313][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1260.680844][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1260.735127][ T329] ? lock_downgrade+0x720/0x720
[ 1260.791499][ T329] ? rcu_read_unlock+0x50/0x50
[ 1260.846841][ T329] wbt_wait+0x144/0x290
[ 1260.894871][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1260.950199][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1261.006569][ T329] __rq_qos_throttle+0x47/0x90
[ 1261.061896][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1261.120345][ T329] ? lock_downgrade+0x720/0x720
[ 1261.176712][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1261.244525][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1261.309209][ T329] ? lock_downgrade+0x720/0x720
[ 1261.365573][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1261.427147][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1261.484551][ T329] ? lock_downgrade+0x720/0x720
[ 1261.540915][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1261.602487][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1261.667173][ T329] submit_bio_noacct+0x845/0xe90
[ 1261.724581][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1261.781985][ T329] ? find_held_lock+0x33/0x1c0
[ 1261.837317][ T329] ? mark_held_locks+0xb0/0x110
[ 1261.893698][ T329] ? submit_bio+0xe7/0x480
[ 1261.944850][ T329] submit_bio+0xe7/0x480
[ 1261.993941][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1262.053427][ T329] ? lock_downgrade+0x720/0x720
[ 1262.109794][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1262.185923][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1262.255808][ T329] __swap_writepage+0xb29/0x15d0
[ 1262.313219][ T329] ? get_swap_bio+0x390/0x390
[ 1262.367501][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1262.435310][ T329] ? rcu_read_unlock+0x50/0x50
[ 1262.490643][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1262.549085][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1262.606494][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1262.672225][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1262.732749][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1262.792236][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1262.848608][ T329] ? page_swapcount+0xeb/0x180
[ 1262.903936][ T329] ? try_to_free_swap+0x487/0x670
[ 1262.962380][ T329] pageout+0x44b/0x1060
[ 1263.010446][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1263.063675][ T329] ? page_not_mapped+0x10/0x10
[ 1263.119003][ T329] ? page_get_anon_vma+0x290/0x290
[ 1263.178493][ T329] ? page_mapped+0xf2/0x2e0
[ 1263.230701][ T329] shrink_page_list+0x250f/0x3f10
[ 1263.289149][ T329] ? pageout+0x1060/0x1060
[ 1263.340319][ T329] ? mark_lock+0x50/0x1800
[ 1263.391482][ T329] ? find_held_lock+0x33/0x1c0
[ 1263.446813][ T329] ? print_irqtrace_events+0x270/0x270
[ 1263.510460][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1263.573067][ T329] ? mark_held_locks+0xb0/0x110
[ 1263.629433][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1263.699324][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1263.759849][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1263.818296][ T329] shrink_inactive_list+0x362/0xa10
[ 1263.878830][ T329] ? print_irqtrace_events+0x270/0x270
[ 1263.942471][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1264.004039][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1264.073928][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1264.131358][ T329] shrink_lruvec+0x841/0x19e0
[ 1264.185624][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1264.255515][ T329] ? shrink_active_list+0x1060/0x1060
[ 1264.318117][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1264.378651][ T329] ? lock_downgrade+0x720/0x720
[ 1264.435013][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1264.499699][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1264.558151][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1264.620756][ T329] shrink_node+0x42b/0x1700
[ 1264.672965][ T329] do_try_to_free_pages+0x348/0x1250
[ 1264.734536][ T329] ? shrink_node+0x1700/0x1700
[ 1264.789857][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1264.854548][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1264.916119][ T329] try_to_free_pages+0x244/0x690
[ 1264.973526][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1265.046532][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1265.101858][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1265.171748][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1265.248930][ T329] ? get_page_from_freelist+0x8e9/0x3930
[ 1265.314645][ T329] ? print_irqtrace_events+0x270/0x270
[ 1265.378293][ T329] ? warn_alloc+0x120/0x120
[ 1265.430497][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1265.495187][ T329] ? lock_downgrade+0x720/0x720
[ 1265.551550][ T329] ? __isolate_free_page+0x570/0x570
[ 1265.613119][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1265.675731][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1265.756017][ T329] __get_free_pages+0xc/0x90
[ 1265.809269][ T329] pgd_alloc+0x86/0x500
[ 1265.857313][ T329] ? lock_downgrade+0x720/0x720
[ 1265.913679][ T329] ? pgd_page_get_mm+0x30/0x30
[ 1265.969008][ T329] ? dup_mm+0x81/0xfc0
[ 1266.016011][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1266.080700][ T329] ? lockdep_init_map_waits+0x267/0x7b0
[ 1266.145392][ T329] ? lockdep_init_map_waits+0x267/0x7b0
[ 1266.210078][ T329] mm_init.isra.47+0x567/0x8e0
[ 1266.265406][ T329] ? memcpy+0x38/0x60
[ 1266.311373][ T329] dup_mm+0xa8/0xfc0
[ 1266.356314][ T329] ? lock_downgrade+0x720/0x720
[ 1266.412664][ T329] ? rcu_read_unlock+0x50/0x50
[ 1266.467998][ T329] ? vm_area_dup+0x2a0/0x2a0
[ 1266.521242][ T329] ? lockdep_init_map_waits+0x267/0x7b0
[ 1266.585932][ T329] copy_process+0x2875/0x6150
[ 1266.640222][ T329] ? __cleanup_sighand+0x60/0x60
[ 1266.697624][ T329] ? sigprocmask+0x14e/0x270
[ 1266.750873][ T329] ? find_held_lock+0x33/0x1c0
[ 1266.806204][ T329] _do_fork+0xbd/0xd60
[ 1266.853208][ T329] ? lock_downgrade+0x720/0x720
[ 1266.909576][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1266.970109][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1267.028556][ T329] ? copy_init_mm+0x10/0x10
[ 1267.080759][ T329] __do_sys_clone+0xc3/0x100
[ 1267.134010][ T329] ? _do_fork+0xd60/0xd60
[ 1267.184135][ T329] ? do_syscall_64+0x24/0x310
[ 1267.238425][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1267.296872][ T329] do_syscall_64+0x5f/0x310
[ 1267.349079][ T329] ? trace_hardirqs_off+0x12/0x1a0
[ 1267.408582][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1267.465977][ T329] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1267.534821][ T329] RIP: 0033:0x7f58395ed2e2
[ 1267.585987][ T329] Code: Bad RIP value.
[ 1267.633000][ T329] RSP: 002b:00007ffdfbafb490 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[ 1267.732001][ T329] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f58395ed2e2
[ 1267.825815][ T329] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[ 1267.919623][ T329] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f5839f30740
[ 1268.013429][ T329] R10: 00007f5839f30a10 R11: 0000000000000246 R12: 00007ffdfbafb4e0
[ 1268.107233][ T329] R13: 00007ffdfbafb560 R14: 0000555cc739aeb9 R15: 0000555cc80f4950
[ 1268.201105][ T329] INFO: task random:2918 blocked for more than 144 seconds.
[ 1268.286534][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1268.358516][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1268.460628][ T329] random D23704 2918 2020 0x00004002
[ 1268.534669][ T329] Call Trace:
[ 1268.572322][ T329] __schedule+0x768/0x1ba0
[ 1268.623494][ T329] ? __sched_text_start+0x8/0x8
[ 1268.679857][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1268.747664][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1268.805074][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1268.859357][ T329] schedule+0xc1/0x2b0
[ 1268.906370][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1268.959618][ T329] io_schedule+0x17/0x60
[ 1269.008702][ T329] rq_qos_wait+0x1ce/0x330
[ 1269.059870][ T329] ? __wbt_done+0x30/0x30
[ 1269.110001][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1269.169484][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1269.226896][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1269.287423][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1269.341708][ T329] ? print_irqtrace_events+0x270/0x270
[ 1269.405357][ T329] wbt_wait+0x144/0x290
[ 1269.453408][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1269.508731][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1269.566138][ T329] __rq_qos_throttle+0x47/0x90
[ 1269.621470][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1269.679915][ T329] ? lock_downgrade+0x720/0x720
[ 1269.736282][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1269.804099][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1269.868776][ T329] ? lock_downgrade+0x720/0x720
[ 1269.925145][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1269.986717][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1270.044124][ T329] ? lock_downgrade+0x720/0x720
[ 1270.100490][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1270.162065][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1270.226746][ T329] submit_bio_noacct+0x845/0xe90
[ 1270.284153][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1270.341563][ T329] ? find_held_lock+0x33/0x1c0
[ 1270.396886][ T329] ? mark_held_locks+0xb0/0x110
[ 1270.453257][ T329] ? submit_bio+0xe7/0x480
[ 1270.504424][ T329] submit_bio+0xe7/0x480
[ 1270.553511][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1270.613001][ T329] ? lock_downgrade+0x720/0x720
[ 1270.669369][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1270.745494][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1270.815386][ T329] __swap_writepage+0xb29/0x15d0
[ 1270.872791][ T329] ? get_swap_bio+0x390/0x390
[ 1270.927076][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1270.994890][ T329] ? rcu_read_unlock+0x50/0x50
[ 1271.050214][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1271.108658][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1271.166071][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1271.231799][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1271.292325][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1271.351808][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1271.408177][ T329] ? page_swapcount+0xeb/0x180
[ 1271.463508][ T329] ? try_to_free_swap+0x487/0x670
[ 1271.521951][ T329] pageout+0x44b/0x1060
[ 1271.570000][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1271.623254][ T329] ? page_not_mapped+0x10/0x10
[ 1271.678578][ T329] ? page_get_anon_vma+0x290/0x290
[ 1271.738063][ T329] ? page_mapped+0xf2/0x2e0
[ 1271.790276][ T329] shrink_page_list+0x250f/0x3f10
[ 1271.848721][ T329] ? pageout+0x1060/0x1060
[ 1271.899888][ T329] ? mark_lock+0x50/0x1800
[ 1271.951059][ T329] ? find_held_lock+0x33/0x1c0
[ 1272.006383][ T329] ? print_irqtrace_events+0x270/0x270
[ 1272.070033][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1272.132641][ T329] ? mark_held_locks+0xb0/0x110
[ 1272.189007][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1272.258897][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1272.319421][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1272.377868][ T329] shrink_inactive_list+0x362/0xa10
[ 1272.438400][ T329] ? print_irqtrace_events+0x270/0x270
[ 1272.502047][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1272.563612][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1272.633501][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1272.690908][ T329] shrink_lruvec+0x841/0x19e0
[ 1272.745194][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1272.815087][ T329] ? shrink_active_list+0x1060/0x1060
[ 1272.877693][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1272.938222][ T329] ? lock_downgrade+0x720/0x720
[ 1272.994588][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1273.059277][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1273.117721][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1273.180333][ T329] shrink_node+0x42b/0x1700
[ 1273.232537][ T329] do_try_to_free_pages+0x348/0x1250
[ 1273.294104][ T329] ? shrink_node+0x1700/0x1700
[ 1273.349437][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1273.414119][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1273.475688][ T329] try_to_free_pages+0x244/0x690
[ 1273.533097][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1273.606102][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1273.661434][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1273.731317][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1273.808491][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1273.874214][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1273.931621][ T329] ? warn_alloc+0x120/0x120
[ 1273.983832][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1274.048517][ T329] ? lock_downgrade+0x720/0x720
[ 1274.104884][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1274.174775][ T329] ? __isolate_free_page+0x570/0x570
[ 1274.236340][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1274.298950][ T329] ? handle_mm_fault+0x1f3/0x2ef0
[ 1274.357398][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1274.437686][ T329] ? mark_held_locks+0xb0/0x110
[ 1274.494052][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1274.548346][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1274.605749][ T329] ? copy_page_range+0x580/0x580
[ 1274.663158][ T329] do_user_addr_fault+0x2af/0x824
[ 1274.721602][ T329] exc_page_fault+0x56/0xa0
[ 1274.773811][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1274.831214][ T329] asm_exc_page_fault+0x1e/0x30
[ 1274.887583][ T329] RIP: 0033:0x7fef56ee9ed2
[ 1274.938754][ T329] Code: Bad RIP value.
[ 1274.985758][ T329] RSP: 002b:00007ffe2b9ddbf0 EFLAGS: 00010246
[ 1275.056691][ T329] RAX: 00007fe7203f9000 RBX: 00007fe720bf9700 RCX: 00007fef56c1599b
[ 1275.150496][ T329] RDX: 0000000000000003 RSI: 0000000000800000 RDI: 00007fe7203fa000
[ 1275.244301][ T329] RBP: 00007ffe2b9ddcc0 R08: 00000000ffffffff R09: 0000000000000000
[ 1275.338112][ T329] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000001000
[ 1275.431915][ T329] R13: 00007ffe2b9ddc50 R14: 0000000000000000 R15: 0000000000801000
[ 1275.525754][ T329] INFO: task random:2925 blocked for more than 151 seconds.
[ 1275.611212][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1275.683189][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1275.785310][ T329] random D22792 2925 2020 0x00004000
[ 1275.859359][ T329] Call Trace:
[ 1275.897005][ T329] __schedule+0x768/0x1ba0
[ 1275.948174][ T329] ? __sched_text_start+0x8/0x8
[ 1276.004539][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1276.072349][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1276.129752][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1276.184042][ T329] schedule+0xc1/0x2b0
[ 1276.231052][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1276.284299][ T329] io_schedule+0x17/0x60
[ 1276.333386][ T329] rq_qos_wait+0x1ce/0x330
[ 1276.384555][ T329] ? __wbt_done+0x30/0x30
[ 1276.434680][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1276.494168][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1276.551578][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1276.612103][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1276.666390][ T329] ? print_irqtrace_events+0x270/0x270
[ 1276.730042][ T329] wbt_wait+0x144/0x290
[ 1276.778084][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1276.833412][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1276.890827][ T329] __rq_qos_throttle+0x47/0x90
[ 1276.946152][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1277.004604][ T329] ? lock_downgrade+0x720/0x720
[ 1277.060968][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1277.128781][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1277.193463][ T329] ? lock_downgrade+0x720/0x720
[ 1277.249827][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1277.311395][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1277.368807][ T329] ? lock_downgrade+0x720/0x720
[ 1277.425169][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1277.486748][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1277.551432][ T329] submit_bio_noacct+0x845/0xe90
[ 1277.608835][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1277.666241][ T329] ? find_held_lock+0x33/0x1c0
[ 1277.721574][ T329] ? mark_held_locks+0xb0/0x110
[ 1277.777939][ T329] ? submit_bio+0xe7/0x480
[ 1277.829107][ T329] submit_bio+0xe7/0x480
[ 1277.878198][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1277.937677][ T329] ? lock_downgrade+0x720/0x720
[ 1277.994050][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1278.070178][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1278.140061][ T329] __swap_writepage+0xb29/0x15d0
[ 1278.197469][ T329] ? get_swap_bio+0x390/0x390
[ 1278.251761][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1278.319566][ T329] ? rcu_read_unlock+0x50/0x50
[ 1278.374894][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1278.433344][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1278.490750][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1278.556476][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1278.617009][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1278.676491][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1278.732860][ T329] ? page_swapcount+0xeb/0x180
[ 1278.788193][ T329] ? try_to_free_swap+0x487/0x670
[ 1278.846640][ T329] pageout+0x44b/0x1060
[ 1278.894683][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1278.947936][ T329] ? page_not_mapped+0x10/0x10
[ 1279.003264][ T329] ? page_get_anon_vma+0x290/0x290
[ 1279.062745][ T329] ? page_mapped+0xf2/0x2e0
[ 1279.114956][ T329] shrink_page_list+0x250f/0x3f10
[ 1279.173403][ T329] ? pageout+0x1060/0x1060
[ 1279.224568][ T329] ? mark_lock+0x50/0x1800
[ 1279.275741][ T329] ? find_held_lock+0x33/0x1c0
[ 1279.331065][ T329] ? print_irqtrace_events+0x270/0x270
[ 1279.394712][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1279.457324][ T329] ? mark_held_locks+0xb0/0x110
[ 1279.513688][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1279.583578][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1279.644102][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1279.702553][ T329] shrink_inactive_list+0x362/0xa10
[ 1279.763083][ T329] ? print_irqtrace_events+0x270/0x270
[ 1279.826728][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1279.888294][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1279.958186][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1280.015587][ T329] shrink_lruvec+0x841/0x19e0
[ 1280.069879][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1280.139768][ T329] ? shrink_active_list+0x1060/0x1060
[ 1280.202371][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1280.262901][ T329] ? lock_downgrade+0x720/0x720
[ 1280.319269][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1280.383956][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1280.442402][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1280.505014][ T329] shrink_node+0x42b/0x1700
[ 1280.557223][ T329] do_try_to_free_pages+0x348/0x1250
[ 1280.618787][ T329] ? shrink_node+0x1700/0x1700
[ 1280.674118][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1280.738804][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1280.800373][ T329] try_to_free_pages+0x244/0x690
[ 1280.857780][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1280.930792][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1280.986116][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1281.056002][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1281.133174][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1281.198894][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1281.256304][ T329] ? warn_alloc+0x120/0x120
[ 1281.308514][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1281.373203][ T329] ? lock_downgrade+0x720/0x720
[ 1281.429566][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1281.499456][ T329] ? __isolate_free_page+0x570/0x570
[ 1281.561022][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1281.623630][ T329] ? handle_mm_fault+0x1f3/0x2ef0
[ 1281.682081][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1281.762368][ T329] ? mark_held_locks+0xb0/0x110
[ 1281.818738][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1281.873019][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1281.930432][ T329] ? copy_page_range+0x580/0x580
[ 1281.987840][ T329] do_user_addr_fault+0x2af/0x824
[ 1282.046283][ T329] exc_page_fault+0x56/0xa0
[ 1282.098489][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1282.155903][ T329] asm_exc_page_fault+0x1e/0x30
[ 1282.212266][ T329] RIP: 0033:0x402cb9
[ 1282.257191][ T329] Code: Bad RIP value.
[ 1282.304204][ T329] RSP: 002b:00007fef2e4b2ec0 EFLAGS: 00010206
[ 1282.375126][ T329] RAX: 00007fee01a08000 RBX: 0000000000000000 RCX: 00007fef56c158c7
[ 1282.468941][ T329] RDX: 00007fedfc632000 RSI: 000000000ccccccc RDI: 0000000000000000
[ 1282.562746][ T329] RBP: 00007fef2e4b2ef0 R08: 00000000ffffffff R09: 0000000000000000
[ 1282.656554][ T329] R10: 0000000000000022 R11: 0000000000000246 R12: 00007ffe2b9ddc4e
[ 1282.750363][ T329] R13: 00007ffe2b9ddc4f R14: 0000000000000000 R15: 00007fef2e4b2fc0
[ 1282.844196][ T329] INFO: task random:2926 blocked for more than 159 seconds.
[ 1282.929660][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1283.001621][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1283.103751][ T329] random D22968 2926 2020 0x00004000
[ 1283.177803][ T329] Call Trace:
[ 1283.215449][ T329] __schedule+0x768/0x1ba0
[ 1283.266617][ T329] ? __sched_text_start+0x8/0x8
[ 1283.322981][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1283.390791][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1283.448194][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1283.502483][ T329] schedule+0xc1/0x2b0
[ 1283.549496][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1283.602742][ T329] io_schedule+0x17/0x60
[ 1283.651826][ T329] rq_qos_wait+0x1ce/0x330
[ 1283.703000][ T329] ? __wbt_done+0x30/0x30
[ 1283.753123][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1283.812611][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1283.870022][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1283.930544][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1283.984833][ T329] ? print_irqtrace_events+0x270/0x270
[ 1284.048485][ T329] wbt_wait+0x144/0x290
[ 1284.096529][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1284.151857][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1284.209269][ T329] __rq_qos_throttle+0x47/0x90
[ 1284.264590][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1284.323040][ T329] ? lock_downgrade+0x720/0x720
[ 1284.379411][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1284.447225][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1284.511907][ T329] ? lock_downgrade+0x720/0x720
[ 1284.568269][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1284.629838][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1284.687251][ T329] ? lock_downgrade+0x720/0x720
[ 1284.743613][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1284.805186][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1284.869874][ T329] submit_bio_noacct+0x845/0xe90
[ 1284.927274][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1284.984685][ T329] ? find_held_lock+0x33/0x1c0
[ 1285.040016][ T329] ? mark_held_locks+0xb0/0x110
[ 1285.096379][ T329] ? submit_bio+0xe7/0x480
[ 1285.147545][ T329] submit_bio+0xe7/0x480
[ 1285.196641][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1285.256123][ T329] ? lock_downgrade+0x720/0x720
[ 1285.312495][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1285.388624][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1285.458508][ T329] __swap_writepage+0xb29/0x15d0
[ 1285.515912][ T329] ? get_swap_bio+0x390/0x390
[ 1285.570204][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1285.638006][ T329] ? rcu_read_unlock+0x50/0x50
[ 1285.693334][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1285.751786][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1285.809192][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1285.874918][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1285.935451][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1285.994936][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1286.051303][ T329] ? page_swapcount+0xeb/0x180
[ 1286.106635][ T329] ? try_to_free_swap+0x487/0x670
[ 1286.165080][ T329] pageout+0x44b/0x1060
[ 1286.213126][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1286.266377][ T329] ? page_not_mapped+0x10/0x10
[ 1286.321700][ T329] ? page_get_anon_vma+0x290/0x290
[ 1286.381189][ T329] ? page_mapped+0xf2/0x2e0
[ 1286.433402][ T329] shrink_page_list+0x250f/0x3f10
[ 1286.491844][ T329] ? pageout+0x1060/0x1060
[ 1286.543011][ T329] ? mark_lock+0x50/0x1800
[ 1286.594184][ T329] ? find_held_lock+0x33/0x1c0
[ 1286.649505][ T329] ? print_irqtrace_events+0x270/0x270
[ 1286.713156][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1286.775768][ T329] ? mark_held_locks+0xb0/0x110
[ 1286.832129][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1286.902023][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1286.962546][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1287.020994][ T329] shrink_inactive_list+0x362/0xa10
[ 1287.081528][ T329] ? print_irqtrace_events+0x270/0x270
[ 1287.145172][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1287.206738][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1287.276628][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1287.334033][ T329] shrink_lruvec+0x841/0x19e0
[ 1287.388320][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1287.458213][ T329] ? shrink_active_list+0x1060/0x1060
[ 1287.520817][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1287.581350][ T329] ? lock_downgrade+0x720/0x720
[ 1287.637711][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1287.702398][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1287.760853][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1287.823453][ T329] shrink_node+0x42b/0x1700
[ 1287.875664][ T329] do_try_to_free_pages+0x348/0x1250
[ 1287.937233][ T329] ? shrink_node+0x1700/0x1700
[ 1287.992557][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1288.057244][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1288.118817][ T329] try_to_free_pages+0x244/0x690
[ 1288.176219][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1288.249232][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1288.304559][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1288.374443][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1288.451617][ T329] ? get_reg+0x220/0x220
[ 1288.500699][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1288.566427][ T329] ? warn_alloc+0x120/0x120
[ 1288.618636][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1288.683319][ T329] ? lock_downgrade+0x720/0x720
[ 1288.739694][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1288.809581][ T329] ? _raw_spin_unlock_irqrestore+0x39/0x40
[ 1288.877386][ T329] ? __isolate_free_page+0x570/0x570
[ 1288.938957][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1289.001560][ T329] ? lock_downgrade+0x720/0x720
[ 1289.057928][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1289.138222][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1289.195622][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1289.249913][ T329] ? __pte_alloc+0x120/0x250
[ 1289.303163][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1289.360568][ T329] ? copy_page_range+0x580/0x580
[ 1289.417975][ T329] do_user_addr_fault+0x2af/0x824
[ 1289.476428][ T329] exc_page_fault+0x56/0xa0
[ 1289.528633][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1289.586038][ T329] asm_exc_page_fault+0x1e/0x30
[ 1289.642410][ T329] RIP: 0033:0x402cb9
[ 1289.687332][ T329] Code: Bad RIP value.
[ 1289.734338][ T329] RSP: 002b:00007fef2dcb1ec0 EFLAGS: 00010206
[ 1289.805271][ T329] RAX: 00007fee0dc00000 RBX: 0000000000000000 RCX: 00007fef56c158c7
[ 1289.899075][ T329] RDX: 00007fee092ff000 RSI: 000000000ccccccc RDI: 0000000000000000
[ 1289.992887][ T329] RBP: 00007fef2dcb1ef0 R08: 00000000ffffffff R09: 0000000000000000
[ 1290.086688][ T329] R10: 0000000000000022 R11: 0000000000000246 R12: 00007ffe2b9ddc4e
[ 1290.180502][ T329] R13: 00007ffe2b9ddc4f R14: 0000000000000000 R15: 00007fef2dcb1fc0
[ 1290.274327][ T329] INFO: task random:2928 blocked for more than 166 seconds.
[ 1290.359792][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1290.431780][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1290.533888][ T329] random D23888 2928 2020 0x00004000
[ 1290.607943][ T329] Call Trace:
[ 1290.645587][ T329] __schedule+0x768/0x1ba0
[ 1290.696755][ T329] ? __sched_text_start+0x8/0x8
[ 1290.753125][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1290.820977][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1290.878340][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1290.932623][ T329] schedule+0xc1/0x2b0
[ 1290.979632][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1291.032884][ T329] io_schedule+0x17/0x60
[ 1291.081970][ T329] rq_qos_wait+0x1ce/0x330
[ 1291.133133][ T329] ? __wbt_done+0x30/0x30
[ 1291.183268][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1291.242752][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1291.300157][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1291.360690][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1291.414988][ T329] ? print_irqtrace_events+0x270/0x270
[ 1291.478620][ T329] wbt_wait+0x144/0x290
[ 1291.526666][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1291.581996][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1291.639402][ T329] __rq_qos_throttle+0x47/0x90
[ 1291.694730][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1291.753176][ T329] ? lock_downgrade+0x720/0x720
[ 1291.809545][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1291.877360][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1291.942041][ T329] ? lock_downgrade+0x720/0x720
[ 1291.998407][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1292.059977][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1292.117384][ T329] ? lock_downgrade+0x720/0x720
[ 1292.173753][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1292.235323][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1292.300009][ T329] submit_bio_noacct+0x845/0xe90
[ 1292.357416][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1292.414824][ T329] ? find_held_lock+0x33/0x1c0
[ 1292.470149][ T329] ? mark_held_locks+0xb0/0x110
[ 1292.526518][ T329] ? submit_bio+0xe7/0x480
[ 1292.577686][ T329] submit_bio+0xe7/0x480
[ 1292.626774][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1292.686261][ T329] ? lock_downgrade+0x720/0x720
[ 1292.742628][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1292.818757][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1292.888645][ T329] __swap_writepage+0xb29/0x15d0
[ 1292.946051][ T329] ? get_swap_bio+0x390/0x390
[ 1293.000338][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1293.068148][ T329] ? rcu_read_unlock+0x50/0x50
[ 1293.123475][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1293.181921][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1293.239331][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1293.305058][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1293.365587][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1293.425074][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1293.481442][ T329] ? page_swapcount+0xeb/0x180
[ 1293.536769][ T329] ? try_to_free_swap+0x487/0x670
[ 1293.595216][ T329] pageout+0x44b/0x1060
[ 1293.643265][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1293.696513][ T329] ? page_not_mapped+0x10/0x10
[ 1293.751839][ T329] ? page_get_anon_vma+0x290/0x290
[ 1293.811328][ T329] ? page_mapped+0xf2/0x2e0
[ 1293.863535][ T329] shrink_page_list+0x250f/0x3f10
[ 1293.921987][ T329] ? pageout+0x1060/0x1060
[ 1293.973150][ T329] ? mark_lock+0x50/0x1800
[ 1294.024320][ T329] ? find_held_lock+0x33/0x1c0
[ 1294.079645][ T329] ? print_irqtrace_events+0x270/0x270
[ 1294.143293][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1294.205901][ T329] ? mark_held_locks+0xb0/0x110
[ 1294.262267][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1294.332156][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1294.392684][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1294.451132][ T329] shrink_inactive_list+0x362/0xa10
[ 1294.511661][ T329] ? print_irqtrace_events+0x270/0x270
[ 1294.575308][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1294.636874][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1294.706764][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1294.764171][ T329] shrink_lruvec+0x841/0x19e0
[ 1294.818457][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1294.888346][ T329] ? shrink_active_list+0x1060/0x1060
[ 1294.950953][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1295.011482][ T329] ? lock_downgrade+0x720/0x720
[ 1295.067848][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1295.132536][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1295.190985][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1295.253594][ T329] shrink_node+0x42b/0x1700
[ 1295.305801][ T329] do_try_to_free_pages+0x348/0x1250
[ 1295.367366][ T329] ? shrink_node+0x1700/0x1700
[ 1295.422694][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1295.487381][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1295.548951][ T329] try_to_free_pages+0x244/0x690
[ 1295.606359][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1295.679366][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1295.734694][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1295.804583][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1295.881748][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1295.947477][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1296.004884][ T329] ? warn_alloc+0x120/0x120
[ 1296.057092][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1296.121779][ T329] ? lock_downgrade+0x720/0x720
[ 1296.178148][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1296.248035][ T329] ? __isolate_free_page+0x570/0x570
[ 1296.309605][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1296.372210][ T329] ? handle_mm_fault+0x1f3/0x2ef0
[ 1296.430659][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1296.510946][ T329] ? mark_held_locks+0xb0/0x110
[ 1296.567314][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1296.621602][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1296.679008][ T329] ? copy_page_range+0x580/0x580
[ 1296.736417][ T329] do_user_addr_fault+0x2af/0x824
[ 1296.794864][ T329] exc_page_fault+0x56/0xa0
[ 1296.847072][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1296.904480][ T329] asm_exc_page_fault+0x1e/0x30
[ 1296.960848][ T329] RIP: 0033:0x402cb9
[ 1297.005775][ T329] Code: Bad RIP value.
[ 1297.052782][ T329] RSP: 002b:00007fef2ccafec0 EFLAGS: 00010206
[ 1297.123709][ T329] RAX: 00007fee27984000 RBX: 0000000000000000 RCX: 00007fef56c158c7
[ 1297.217518][ T329] RDX: 00007fee22c99000 RSI: 000000000ccccccc RDI: 0000000000000000
[ 1297.311325][ T329] RBP: 00007fef2ccafef0 R08: 00000000ffffffff R09: 0000000000000000
[ 1297.405132][ T329] R10: 0000000000000022 R11: 0000000000000246 R12: 00007ffe2b9ddc4e
[ 1297.498940][ T329] R13: 00007ffe2b9ddc4f R14: 0000000000000000 R15: 00007fef2ccaffc0
[ 1297.592777][ T329] INFO: task random:2929 blocked for more than 173 seconds.
[ 1297.678266][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1297.750203][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1297.852336][ T329] random D23560 2929 2020 0x00004000
[ 1297.926381][ T329] Call Trace:
[ 1297.964031][ T329] __schedule+0x768/0x1ba0
[ 1298.015201][ T329] ? __sched_text_start+0x8/0x8
[ 1298.071564][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1298.139374][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1298.196778][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1298.251065][ T329] schedule+0xc1/0x2b0
[ 1298.298079][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1298.351326][ T329] io_schedule+0x17/0x60
[ 1298.400410][ T329] rq_qos_wait+0x1ce/0x330
[ 1298.451582][ T329] ? __wbt_done+0x30/0x30
[ 1298.501705][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1298.561193][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1298.618602][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1298.679128][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1298.733431][ T329] ? print_irqtrace_events+0x270/0x270
[ 1298.797067][ T329] wbt_wait+0x144/0x290
[ 1298.845113][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1298.900437][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1298.957851][ T329] __rq_qos_throttle+0x47/0x90
[ 1299.013174][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1299.071626][ T329] ? lock_downgrade+0x720/0x720
[ 1299.127995][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1299.195805][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1299.260492][ T329] ? lock_downgrade+0x720/0x720
[ 1299.316852][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1299.378419][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1299.435833][ T329] ? lock_downgrade+0x720/0x720
[ 1299.492196][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1299.553768][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1299.618456][ T329] submit_bio_noacct+0x845/0xe90
[ 1299.675858][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1299.733267][ T329] ? find_held_lock+0x33/0x1c0
[ 1299.788615][ T329] ? mark_held_locks+0xb0/0x110
[ 1299.844964][ T329] ? submit_bio+0xe7/0x480
[ 1299.896130][ T329] submit_bio+0xe7/0x480
[ 1299.945222][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1300.004703][ T329] ? lock_downgrade+0x720/0x720
[ 1300.061075][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1300.137205][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1300.207089][ T329] __swap_writepage+0xb29/0x15d0
[ 1300.264499][ T329] ? get_swap_bio+0x390/0x390
[ 1300.318785][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1300.386591][ T329] ? rcu_read_unlock+0x50/0x50
[ 1300.441921][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1300.500369][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1300.557775][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1300.623504][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1300.684030][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1300.743518][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1300.799889][ T329] ? page_swapcount+0xeb/0x180
[ 1300.855228][ T329] ? try_to_free_swap+0x487/0x670
[ 1300.913664][ T329] pageout+0x44b/0x1060
[ 1300.961713][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1301.014956][ T329] ? page_not_mapped+0x10/0x10
[ 1301.070283][ T329] ? page_get_anon_vma+0x290/0x290
[ 1301.129776][ T329] ? page_mapped+0xf2/0x2e0
[ 1301.181980][ T329] shrink_page_list+0x250f/0x3f10
[ 1301.240427][ T329] ? pageout+0x1060/0x1060
[ 1301.291598][ T329] ? mark_lock+0x50/0x1800
[ 1301.342767][ T329] ? find_held_lock+0x33/0x1c0
[ 1301.398092][ T329] ? print_irqtrace_events+0x270/0x270
[ 1301.461740][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1301.524344][ T329] ? mark_held_locks+0xb0/0x110
[ 1301.580712][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1301.650604][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1301.711130][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1301.769581][ T329] shrink_inactive_list+0x362/0xa10
[ 1301.830108][ T329] ? print_irqtrace_events+0x270/0x270
[ 1301.893752][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1301.955336][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1302.025211][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1302.082617][ T329] shrink_lruvec+0x841/0x19e0
[ 1302.136905][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1302.206793][ T329] ? shrink_active_list+0x1060/0x1060
[ 1302.269398][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1302.329931][ T329] ? lock_downgrade+0x720/0x720
[ 1302.386292][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1302.450980][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1302.509434][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1302.572036][ T329] shrink_node+0x42b/0x1700
[ 1302.624247][ T329] do_try_to_free_pages+0x348/0x1250
[ 1302.685815][ T329] ? shrink_node+0x1700/0x1700
[ 1302.741139][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1302.805826][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1302.867401][ T329] try_to_free_pages+0x244/0x690
[ 1302.924801][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1302.997829][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1303.053142][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1303.123030][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1303.200198][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1303.265926][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1303.323327][ T329] ? warn_alloc+0x120/0x120
[ 1303.375540][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1303.440227][ T329] ? lock_downgrade+0x720/0x720
[ 1303.496592][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1303.566480][ T329] ? __isolate_free_page+0x570/0x570
[ 1303.628051][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1303.690654][ T329] ? handle_mm_fault+0x1f3/0x2ef0
[ 1303.749107][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1303.829392][ T329] ? mark_held_locks+0xb0/0x110
[ 1303.885761][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1303.940051][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1303.997454][ T329] ? copy_page_range+0x580/0x580
[ 1304.054880][ T329] do_user_addr_fault+0x2af/0x824
[ 1304.113309][ T329] exc_page_fault+0x56/0xa0
[ 1304.165518][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1304.222928][ T329] asm_exc_page_fault+0x1e/0x30
[ 1304.279292][ T329] RIP: 0033:0x402cb9
[ 1304.324217][ T329] Code: Bad RIP value.
[ 1304.371230][ T329] RSP: 002b:00007fef2c4aeec0 EFLAGS: 00010206
[ 1304.442155][ T329] RAX: 00007fee34389000 RBX: 0000000000000000 RCX: 00007fef56c158c7
[ 1304.535965][ T329] RDX: 00007fee2f966000 RSI: 000000000ccccccc RDI: 0000000000000000
[ 1304.629772][ T329] RBP: 00007fef2c4aeef0 R08: 00000000ffffffff R09: 0000000000000000
[ 1304.723579][ T329] R10: 0000000000000022 R11: 0000000000000246 R12: 00007ffe2b9ddc4e
[ 1304.817383][ T329] R13: 00007ffe2b9ddc4f R14: 0000000000000000 R15: 00007fef2c4aefc0
[ 1304.911220][ T329] INFO: task random:2933 blocked for more than 181 seconds.
[ 1304.996684][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1305.068653][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1305.170778][ T329] random D23704 2933 2020 0x00004000
[ 1305.244821][ T329] Call Trace:
[ 1305.282472][ T329] __schedule+0x768/0x1ba0
[ 1305.333644][ T329] ? __sched_text_start+0x8/0x8
[ 1305.390005][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1305.457815][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1305.515224][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1305.569514][ T329] schedule+0xc1/0x2b0
[ 1305.616518][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1305.669770][ T329] io_schedule+0x17/0x60
[ 1305.718851][ T329] rq_qos_wait+0x1ce/0x330
[ 1305.770020][ T329] ? __wbt_done+0x30/0x30
[ 1305.820149][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1305.879634][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1305.937045][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1305.997572][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1306.051859][ T329] ? print_irqtrace_events+0x270/0x270
[ 1306.115505][ T329] wbt_wait+0x144/0x290
[ 1306.163556][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1306.218879][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1306.276290][ T329] __rq_qos_throttle+0x47/0x90
[ 1306.331620][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1306.390063][ T329] ? lock_downgrade+0x720/0x720
[ 1306.446431][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1306.514248][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1306.578926][ T329] ? lock_downgrade+0x720/0x720
[ 1306.635296][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1306.696866][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1306.754273][ T329] ? lock_downgrade+0x720/0x720
[ 1306.810639][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1306.872214][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1306.936893][ T329] submit_bio_noacct+0x845/0xe90
[ 1306.994302][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1307.051712][ T329] ? find_held_lock+0x33/0x1c0
[ 1307.107034][ T329] ? mark_held_locks+0xb0/0x110
[ 1307.163405][ T329] ? submit_bio+0xe7/0x480
[ 1307.214576][ T329] submit_bio+0xe7/0x480
[ 1307.263661][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1307.323151][ T329] ? lock_downgrade+0x720/0x720
[ 1307.379518][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1307.455642][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1307.525533][ T329] __swap_writepage+0xb29/0x15d0
[ 1307.582940][ T329] ? get_swap_bio+0x390/0x390
[ 1307.637226][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1307.705039][ T329] ? rcu_read_unlock+0x50/0x50
[ 1307.760360][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1307.818809][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1307.876221][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1307.941946][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1308.002476][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1308.061961][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1308.118327][ T329] ? page_swapcount+0xeb/0x180
[ 1308.173660][ T329] ? try_to_free_swap+0x487/0x670
[ 1308.232104][ T329] pageout+0x44b/0x1060
[ 1308.280152][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1308.333403][ T329] ? page_not_mapped+0x10/0x10
[ 1308.388729][ T329] ? page_get_anon_vma+0x290/0x290
[ 1308.448215][ T329] ? page_mapped+0xf2/0x2e0
[ 1308.500425][ T329] shrink_page_list+0x250f/0x3f10
[ 1308.558868][ T329] ? pageout+0x1060/0x1060
[ 1308.610038][ T329] ? mark_lock+0x50/0x1800
[ 1308.661208][ T329] ? find_held_lock+0x33/0x1c0
[ 1308.716532][ T329] ? print_irqtrace_events+0x270/0x270
[ 1308.780183][ T329] ? shrink_inactive_list+0x32d/0xa10
[ 1308.842794][ T329] ? mark_held_locks+0xb0/0x110
[ 1308.899157][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1308.969050][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1309.029573][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1309.088020][ T329] shrink_inactive_list+0x362/0xa10
[ 1309.148552][ T329] ? print_irqtrace_events+0x270/0x270
[ 1309.212197][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1309.273760][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1309.343656][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1309.401057][ T329] shrink_lruvec+0x841/0x19e0
[ 1309.455346][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1309.525238][ T329] ? shrink_active_list+0x1060/0x1060
[ 1309.587845][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1309.648374][ T329] ? lock_downgrade+0x720/0x720
[ 1309.704736][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1309.769424][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1309.827877][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1309.890480][ T329] shrink_node+0x42b/0x1700
[ 1309.942688][ T329] do_try_to_free_pages+0x348/0x1250
[ 1310.004259][ T329] ? shrink_node+0x1700/0x1700
[ 1310.059585][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1310.124271][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1310.185842][ T329] try_to_free_pages+0x244/0x690
[ 1310.243244][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1310.316257][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1310.371581][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1310.441473][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1310.518639][ T329] ? get_reg+0x220/0x220
[ 1310.567725][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1310.633457][ T329] ? warn_alloc+0x120/0x120
[ 1310.685659][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1310.750347][ T329] ? lock_downgrade+0x720/0x720
[ 1310.806720][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1310.876602][ T329] ? _raw_spin_unlock_irqrestore+0x39/0x40
[ 1310.944413][ T329] ? __isolate_free_page+0x570/0x570
[ 1311.005977][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1311.068589][ T329] ? lock_downgrade+0x720/0x720
[ 1311.124952][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1311.205243][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1311.262647][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1311.316939][ T329] ? __pte_alloc+0x120/0x250
[ 1311.370187][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1311.427592][ T329] ? copy_page_range+0x580/0x580
[ 1311.485001][ T329] do_user_addr_fault+0x2af/0x824
[ 1311.543452][ T329] exc_page_fault+0x56/0xa0
[ 1311.595653][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1311.653063][ T329] asm_exc_page_fault+0x1e/0x30
[ 1311.709434][ T329] RIP: 0033:0x402cb9
[ 1311.754355][ T329] Code: Bad RIP value.
[ 1311.801366][ T329] RSP: 002b:00007fef2a4aaec0 EFLAGS: 00010206
[ 1311.872297][ T329] RAX: 00007fee91600000 RBX: 0000000000000000 RCX: 00007fef56c158c7
[ 1311.966101][ T329] RDX: 00007fee89301000 RSI: 000000000ccccccc RDI: 0000000000000000
[ 1312.059912][ T329] RBP: 00007fef2a4aaef0 R08: 00000000ffffffff R09: 0000000000000000
[ 1312.153715][ T329] R10: 0000000000000022 R11: 0000000000000246 R12: 00007ffe2b9ddc4e
[ 1312.247527][ T329] R13: 00007ffe2b9ddc4f R14: 0000000000000000 R15: 00007fef2a4aafc0
[ 1312.341354][ T329] INFO: task random:2936 blocked for more than 188 seconds.
[ 1312.426820][ T329] Not tainted 5.8.0-rc4-next-20200713 #1
[ 1312.498801][ T329] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1312.600920][ T329] random D23560 2936 2020 0x00004000
[ 1312.674966][ T329] Call Trace:
[ 1312.712612][ T329] __schedule+0x768/0x1ba0
[ 1312.763782][ T329] ? __sched_text_start+0x8/0x8
[ 1312.820150][ T329] ? blk_insert_cloned_request+0x300/0x300
[ 1312.887955][ T329] ? prepare_to_wait+0x2e0/0x2e0
[ 1312.945360][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1312.999653][ T329] schedule+0xc1/0x2b0
[ 1313.046656][ T329] ? rq_qos_wait+0x1c9/0x330
[ 1313.099904][ T329] io_schedule+0x17/0x60
[ 1313.148996][ T329] rq_qos_wait+0x1ce/0x330
[ 1313.200158][ T329] ? __wbt_done+0x30/0x30
[ 1313.250288][ T329] ? rq_depth_scale_down+0xe0/0xe0
[ 1313.309781][ T329] ? find_held_lock+0x33/0x1c0
[ 1313.365102][ T329] ? efi_partition.cold.9+0x1d/0x1d
[ 1313.425633][ T329] ? wbt_cleanup_cb+0x80/0x80
[ 1313.479922][ T329] ? lock_downgrade+0x720/0x720
[ 1313.536287][ T329] ? rcu_read_unlock+0x50/0x50
[ 1313.591616][ T329] wbt_wait+0x144/0x290
[ 1313.639666][ T329] ? rwb_arm_timer+0x1c0/0x1c0
[ 1313.694990][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1313.751359][ T329] __rq_qos_throttle+0x47/0x90
[ 1313.806690][ T329] blk_mq_submit_bio+0x33b/0x1e20
[ 1313.865134][ T329] ? lock_downgrade+0x720/0x720
[ 1313.921498][ T329] ? blk_mq_try_issue_directly+0x140/0x140
[ 1313.989317][ T329] ? dm_submit_bio+0x158/0x440 [dm_mod]
[ 1314.053995][ T329] ? lock_downgrade+0x720/0x720
[ 1314.110363][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1314.171934][ T329] ? blk_queue_enter+0x83c/0x9a0
[ 1314.229339][ T329] ? lock_downgrade+0x720/0x720
[ 1314.285705][ T329] ? submit_bio_checks+0x1cc0/0x1cc0
[ 1314.347282][ T329] ? dm_submit_bio+0x176/0x440 [dm_mod]
[ 1314.411965][ T329] submit_bio_noacct+0x845/0xe90
[ 1314.469374][ T329] ? blk_queue_enter+0x9a0/0x9a0
[ 1314.526776][ T329] ? find_held_lock+0x33/0x1c0
[ 1314.582103][ T329] ? mark_held_locks+0xb0/0x110
[ 1314.638476][ T329] ? submit_bio+0xe7/0x480
[ 1314.689640][ T329] submit_bio+0xe7/0x480
[ 1314.738729][ T329] ? submit_bio_noacct+0xe90/0xe90
[ 1314.798220][ T329] ? lock_downgrade+0x720/0x720
[ 1314.854582][ T329] ? balance_dirty_pages_ratelimited+0x1540/0x1540
[ 1314.930714][ T329] ? bio_associate_blkg_from_css+0x4bd/0xd30
[ 1315.000599][ T329] __swap_writepage+0xb29/0x15d0
[ 1315.058007][ T329] ? get_swap_bio+0x390/0x390
[ 1315.112299][ T329] ? generic_swapfile_activate+0x5b0/0x5b0
[ 1315.180105][ T329] ? rcu_read_unlock+0x50/0x50
[ 1315.235433][ T329] ? do_raw_spin_lock+0x121/0x290
[ 1315.293881][ T329] ? rwlock_bug.part.1+0x90/0x90
[ 1315.351284][ T329] ? page_lock_anon_vma_read+0x11a/0x3c0
[ 1315.417013][ T329] ? down_write_trylock+0x2f0/0x2f0
[ 1315.477545][ T329] ? do_raw_spin_unlock+0x4f/0x250
[ 1315.537028][ T329] ? _raw_spin_unlock+0x1a/0x30
[ 1315.593398][ T329] ? page_swapcount+0xeb/0x180
[ 1315.648728][ T329] ? try_to_free_swap+0x487/0x670
[ 1315.707170][ T329] pageout+0x44b/0x1060
[ 1315.755221][ T329] ? shrink_slab+0x4b0/0x4b0
[ 1315.808471][ T329] ? page_not_mapped+0x10/0x10
[ 1315.863797][ T329] ? page_get_anon_vma+0x290/0x290
[ 1315.923279][ T329] ? page_mapped+0xf2/0x2e0
[ 1315.975493][ T329] shrink_page_list+0x250f/0x3f10
[ 1316.033938][ T329] ? pageout+0x1060/0x1060
[ 1316.085106][ T329] ? mark_held_locks+0xb0/0x110
[ 1316.141476][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1316.211361][ T329] ? asm_sysvec_call_function+0x12/0x20
[ 1316.276053][ T329] ? trace_hardirqs_on+0x20/0x1b5
[ 1316.334496][ T329] ? asm_sysvec_call_function+0x12/0x20
[ 1316.399188][ T329] ? _raw_spin_unlock_irq+0x1f/0x30
[ 1316.459711][ T329] shrink_inactive_list+0x362/0xa10
[ 1316.520243][ T329] ? print_irqtrace_events+0x270/0x270
[ 1316.583889][ T329] ? isolate_lru_pages+0x10a0/0x10a0
[ 1316.645455][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1316.715347][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1316.772751][ T329] shrink_lruvec+0x841/0x19e0
[ 1316.827035][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1316.896929][ T329] ? shrink_active_list+0x1060/0x1060
[ 1316.959534][ T329] ? percpu_ref_put_many+0xa8/0x180
[ 1317.020065][ T329] ? lock_downgrade+0x720/0x720
[ 1317.076427][ T329] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1317.141115][ T329] ? rcu_read_lock_held+0xaa/0xc0
[ 1317.199567][ T329] ? mem_cgroup_protected+0x228/0x470
[ 1317.262171][ T329] shrink_node+0x42b/0x1700
[ 1317.314379][ T329] do_try_to_free_pages+0x348/0x1250
[ 1317.375950][ T329] ? shrink_node+0x1700/0x1700
[ 1317.431276][ T329] ? rcu_read_lock_sched_held+0xaa/0xd0
[ 1317.495959][ T329] ? rcu_read_lock_bh_held+0xc0/0xc0
[ 1317.557534][ T329] try_to_free_pages+0x244/0x690
[ 1317.614938][ T329] ? free_unref_page_prepare.part.42+0xc0/0x170
[ 1317.687951][ T329] ? reclaim_pages+0x9a0/0x9a0
[ 1317.743273][ T329] ? lockdep_hardirqs_on_prepare+0x38c/0x550
[ 1317.813166][ T329] __alloc_pages_slowpath.constprop.73+0x7b8/0x2410
[ 1317.890329][ T329] ? get_page_from_freelist+0x3b8/0x3930
[ 1317.956059][ T329] ? __lock_acquire+0xc57/0x4da0
[ 1318.013462][ T329] ? warn_alloc+0x120/0x120
[ 1318.065671][ T329] ? __alloc_pages_nodemask+0x3b7/0x7d0
[ 1318.130361][ T329] ? lock_downgrade+0x720/0x720
[ 1318.186729][ T329] ? lockdep_hardirqs_on_prepare+0x550/0x550
[ 1318.256619][ T329] ? __isolate_free_page+0x570/0x570
[ 1318.318185][ T329] __alloc_pages_nodemask+0x66b/0x7d0
[ 1318.380789][ T329] ? handle_mm_fault+0x1f3/0x2ef0
[ 1318.439237][ T329] ? __alloc_pages_slowpath.constprop.73+0x2410/0x2410
[ 1318.519529][ T329] ? mark_held_locks+0xb0/0x110
[ 1318.575896][ T329] alloc_pages_vma+0xa5/0x4c0
[ 1318.630179][ T329] handle_mm_fault+0x1bdf/0x2ef0
[ 1318.687593][ T329] ? copy_page_range+0x580/0x580
[ 1318.744998][ T329] do_user_addr_fault+0x2af/0x824
[ 1318.803443][ T329] exc_page_fault+0x56/0xa0
[ 1318.855655][ T329] ? asm_exc_page_fault+0x8/0x30
[ 1318.913059][ T329] asm_exc_page_fault+0x1e/0x30
[ 1318.969427][ T329] RIP: 0033:0x402cb9
[ 1319.014356][ T329] Code: Bad RIP value.
[ 1319.061359][ T329] RSP: 002b:00007fef28ca7ec0 EFLAGS: 00010206
[ 1319.132293][ T329] RAX: 00007fee500e8000 RBX: 0000000000000000 RCX: 00007fef56c158c7
[ 1319.226100][ T329] RDX: 00007fee49300000 RSI: 000000000ccccccc RDI: 0000000000000000
[ 1319.319904][ T329] RBP: 00007fef28ca7ef0 R08: 00000000ffffffff R09: 0000000000000000
[ 1319.413715][ T329] R10: 0000000000000022 R11: 0000000000000246 R12: 00007ffe2b9ddc4e
[ 1319.507517][ T329] R13: 00007ffe2b9ddc4f R14: 0000000000000000 R15: 00007fef28ca7fc0
[ 1319.601387][ T329]
[ 1319.601387][ T329] Showing all locks held in the system:
[ 1319.692146][ T329] 3 locks held by kworker/u258:4/305:
[ 1319.754730][ T329] #0: ffff88866721a938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7c8/0x17c0
[ 1319.879783][ T329] #1: ffffc90004ff7e00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7fc/0x17c0
[ 1320.019301][ T329] #2: ffff88866c1dc0e0 (&type->s_umount_key#27){++++}-{3:3}, at: trylock_super+0x11/0xb0
[ 1320.136000][ T329] 1 lock held by khungtaskd/329:
[ 1320.193395][ T329] #0: ffffffff9618a0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire.constprop.29+0x0/0x30
[ 1320.316328][ T329] 1 lock held by khugepaged/335:
[ 1320.373730][ T329] #0: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1320.490469][ T329] 2 locks held by gmain/1219:
[ 1320.544707][ T329] #0: ffff8886440c6150 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: walk_component+0x36d/0x5f0
[ 1320.680115][ T329] #1: ffff8886440c5ea8 (&xfs_dir_ilock_class){++++}-{3:3}, at: xfs_ilock_data_map_shared+0x41/0xa0
[ 1320.807217][ T329] 2 locks held by crond/1500:
[ 1320.861488][ T329] #0: ffff8886440c6150 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: walk_component+0x36d/0x5f0
[ 1320.996946][ T329] #1: ffff8886440c5ea8 (&xfs_dir_ilock_class){++++}-{3:3}, at: xfs_ilock_data_map_shared+0x41/0xa0
[ 1321.123996][ T329] 1 lock held by runtest.sh/1543:
[ 1321.182428][ T329] #0: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1321.299145][ T329] 2 locks held by random/2918:
[ 1321.354442][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1321.472183][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1321.588864][ T329] 2 locks held by random/2925:
[ 1321.644189][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1321.761912][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1321.878611][ T329] 2 locks held by random/2926:
[ 1321.933933][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1322.051709][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1322.168353][ T329] 2 locks held by random/2928:
[ 1322.223676][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1322.341399][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1322.458098][ T329] 2 locks held by random/2929:
[ 1322.513415][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1322.631146][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1322.747838][ T329] 2 locks held by random/2933:
[ 1322.803161][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1322.920887][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1323.037583][ T329] 2 locks held by random/2936:
[ 1323.092900][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1323.210683][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1323.327323][ T329] 2 locks held by random/2940:
[ 1323.382661][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1323.500369][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1323.617061][ T329] 2 locks held by random/2945:
[ 1323.672380][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1323.790111][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1323.906806][ T329] 2 locks held by random/2947:
[ 1323.962123][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1324.079850][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1324.196547][ T329] 2 locks held by random/2948:
[ 1324.251867][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1324.369595][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1324.486289][ T329] 2 locks held by random/2949:
[ 1324.541609][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1324.659335][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1324.776034][ T329] 2 locks held by random/2950:
[ 1324.831350][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1324.949081][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1325.065772][ T329] 2 locks held by random/2951:
[ 1325.121097][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1325.238822][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1325.355518][ T329] 2 locks held by random/2952:
[ 1325.410836][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1325.528565][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1325.645261][ T329] 2 locks held by random/2953:
[ 1325.700579][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1325.818307][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1325.935003][ T329] 2 locks held by random/2954:
[ 1325.990321][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1326.108051][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1326.224745][ T329] 2 locks held by random/2956:
[ 1326.280066][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1326.397792][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1326.514488][ T329] 2 locks held by random/2957:
[ 1326.569806][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1326.687534][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1326.804230][ T329] 2 locks held by random/2959:
[ 1326.859550][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1326.977276][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1327.093974][ T329] 2 locks held by random/2960:
[ 1327.149292][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1327.267022][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1327.383716][ T329] 2 locks held by random/2961:
[ 1327.439035][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1327.556763][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1327.673458][ T329] 2 locks held by random/2963:
[ 1327.728778][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1327.846508][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1327.963199][ T329] 2 locks held by random/2964:
[ 1328.018523][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1328.136248][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1328.252942][ T329] 2 locks held by random/2965:
[ 1328.308261][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1328.425990][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1328.542684][ T329] 2 locks held by random/2966:
[ 1328.598006][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1328.715732][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1328.832428][ T329] 2 locks held by random/2968:
[ 1328.887748][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1329.005476][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1329.122172][ T329] 2 locks held by random/2969:
[ 1329.177491][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1329.295219][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1329.411911][ T329] 2 locks held by random/2971:
[ 1329.467232][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1329.584962][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1329.701653][ T329] 2 locks held by random/2973:
[ 1329.756976][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1329.874703][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1329.991398][ T329] 2 locks held by random/2976:
[ 1330.046717][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1330.164447][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1330.281140][ T329] 2 locks held by random/2978:
[ 1330.336460][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1330.454189][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1330.570882][ T329] 2 locks held by random/2979:
[ 1330.626203][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1330.743932][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1330.860627][ T329] 2 locks held by random/2980:
[ 1330.915947][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1331.033674][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1331.150371][ T329] 2 locks held by random/2981:
[ 1331.205688][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1331.323416][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1331.440109][ T329] 2 locks held by random/2983:
[ 1331.495432][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1331.613158][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1331.729852][ T329] 2 locks held by random/2985:
[ 1331.785172][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1331.902903][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1332.019594][ T329] 2 locks held by random/2986:
[ 1332.074918][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1332.192644][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1332.309338][ T329] 2 locks held by random/2987:
[ 1332.364659][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1332.482385][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1332.599081][ T329] 2 locks held by random/2991:
[ 1332.654403][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1332.772131][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1332.888828][ T329] 2 locks held by random/2992:
[ 1332.944141][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1333.061872][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1333.178566][ T329] 2 locks held by random/2998:
[ 1333.233888][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1333.351613][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1333.468309][ T329] 2 locks held by random/2999:
[ 1333.523627][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1333.641356][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1333.758053][ T329] 2 locks held by random/3000:
[ 1333.813366][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1333.931103][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1334.047794][ T329] 2 locks held by random/3001:
[ 1334.103115][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1334.220842][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1334.337537][ T329] 2 locks held by random/3002:
[ 1334.392857][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1334.510583][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1334.627280][ T329] 2 locks held by random/3004:
[ 1334.682599][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1334.800327][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1334.917021][ T329] 2 locks held by random/3006:
[ 1334.972342][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1335.090069][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1335.206766][ T329] 2 locks held by random/3008:
[ 1335.262084][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1335.379814][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1335.496507][ T329] 2 locks held by random/3009:
[ 1335.551828][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1335.669557][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1335.786250][ T329] 2 locks held by random/3010:
[ 1335.841569][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1335.959298][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1336.075991][ T329] 2 locks held by random/3011:
[ 1336.131312][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1336.249038][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1336.365734][ T329] 2 locks held by random/3012:
[ 1336.421053][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1336.538782][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1336.655480][ T329] 2 locks held by random/3014:
[ 1336.710796][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1336.828525][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1336.945221][ T329] 2 locks held by random/3015:
[ 1337.000539][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1337.118267][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1337.234960][ T329] 2 locks held by random/3016:
[ 1337.290284][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1337.408008][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1337.524704][ T329] 2 locks held by random/3017:
[ 1337.580024][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1337.697753][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1337.814448][ T329] 2 locks held by random/3019:
[ 1337.869767][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1337.987498][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1338.104189][ T329] 2 locks held by random/3020:
[ 1338.159509][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1338.277238][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1338.393931][ T329] 2 locks held by random/3021:
[ 1338.449254][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1338.566977][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1338.683677][ T329] 2 locks held by random/3022:
[ 1338.738994][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1338.856723][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1338.973418][ T329] 2 locks held by random/3023:
[ 1339.028737][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1339.146464][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1339.263162][ T329] 2 locks held by random/3025:
[ 1339.318479][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1339.436208][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1339.552902][ T329] 2 locks held by random/3027:
[ 1339.608222][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1339.725949][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1339.842646][ T329] 2 locks held by random/3028:
[ 1339.897965][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1340.015694][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1340.132389][ T329] 2 locks held by random/3029:
[ 1340.187707][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1340.305434][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1340.422130][ T329] 2 locks held by random/3030:
[ 1340.477451][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1340.595179][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1340.711872][ T329] 2 locks held by random/3031:
[ 1340.767192][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1340.884918][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1341.001615][ T329] 2 locks held by random/3032:
[ 1341.056936][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1341.174664][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1341.291359][ T329] 2 locks held by random/3033:
[ 1341.346678][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1341.464405][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1341.581100][ T329] 2 locks held by random/3034:
[ 1341.636419][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1341.754148][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1341.870843][ T329] 2 locks held by random/3035:
[ 1341.926164][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1342.043890][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1342.160585][ T329] 2 locks held by random/3036:
[ 1342.215906][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1342.333634][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1342.450326][ T329] 2 locks held by random/3037:
[ 1342.505648][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1342.623377][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1342.740070][ T329] 2 locks held by random/3038:
[ 1342.795390][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1342.913118][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1343.029812][ T329] 2 locks held by random/3039:
[ 1343.085135][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1343.202859][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1343.319554][ T329] 2 locks held by random/3040:
[ 1343.374876][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1343.492606][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1343.609300][ T329] 2 locks held by random/3041:
[ 1343.664619][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1343.782346][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1343.899041][ T329] 2 locks held by random/3042:
[ 1343.954359][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1344.072089][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1344.188783][ T329] 2 locks held by random/3043:
[ 1344.244102][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1344.361831][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1344.478525][ T329] 2 locks held by random/3044:
[ 1344.533846][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1344.651573][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1344.768267][ T329] 2 locks held by random/3045:
[ 1344.823588][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1344.941316][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1345.058020][ T329] 2 locks held by random/3046:
[ 1345.113323][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1345.231060][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1345.347752][ T329] 2 locks held by random/3047:
[ 1345.403074][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1345.520800][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1345.637496][ T329] 2 locks held by random/3048:
[ 1345.692818][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1345.810543][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1345.927241][ T329] 2 locks held by random/3049:
[ 1345.982557][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1346.100287][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1346.216981][ T329] 2 locks held by random/3050:
[ 1346.272301][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1346.390029][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1346.506723][ T329] 2 locks held by random/3051:
[ 1346.562043][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1346.679772][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1346.796466][ T329] 2 locks held by random/3052:
[ 1346.851787][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1346.969515][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1347.086208][ T329] 2 locks held by random/3053:
[ 1347.141528][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1347.259257][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1347.375951][ T329] 2 locks held by random/3054:
[ 1347.431270][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1347.549000][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1347.665694][ T329] 2 locks held by random/3055:
[ 1347.721014][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1347.838743][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1347.955435][ T329] 2 locks held by random/3056:
[ 1348.010757][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1348.128485][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1348.245177][ T329] 2 locks held by random/3057:
[ 1348.300499][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1348.418225][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1348.534921][ T329] 2 locks held by random/3058:
[ 1348.590242][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1348.707967][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1348.824666][ T329] 2 locks held by random/3059:
[ 1348.879985][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1348.997713][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1349.114407][ T329] 2 locks held by random/3060:
[ 1349.169727][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1349.287452][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1349.404149][ T329] 2 locks held by random/3061:
[ 1349.459469][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1349.577198][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1349.693890][ T329] 2 locks held by random/3062:
[ 1349.749213][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1349.866941][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1349.983636][ T329] 2 locks held by random/3063:
[ 1350.038953][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1350.156684][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1350.273375][ T329] 2 locks held by random/3064:
[ 1350.328697][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1350.446424][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1350.563118][ T329] 2 locks held by random/3065:
[ 1350.618439][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1350.736167][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1350.852862][ T329] 2 locks held by random/3066:
[ 1350.908183][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1351.025909][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1351.142607][ T329] 2 locks held by random/3067:
[ 1351.197925][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1351.315654][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1351.432345][ T329] 2 locks held by random/3068:
[ 1351.487665][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1351.605394][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1351.722090][ T329] 2 locks held by random/3069:
[ 1351.777408][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1351.895137][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1352.011834][ T329] 2 locks held by random/3070:
[ 1352.067150][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1352.184882][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1352.301573][ T329] 2 locks held by random/3071:
[ 1352.356895][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1352.474622][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1352.591317][ T329] 2 locks held by random/3072:
[ 1352.646638][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1352.764363][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1352.881061][ T329] 2 locks held by random/3073:
[ 1352.936380][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1353.054107][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1353.170802][ T329] 2 locks held by random/3074:
[ 1353.226122][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1353.343851][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1353.460544][ T329] 2 locks held by random/3075:
[ 1353.515864][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1353.633594][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1353.750287][ T329] 2 locks held by random/3076:
[ 1353.805609][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1353.923338][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1354.040031][ T329] 2 locks held by random/3077:
[ 1354.095350][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1354.213080][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1354.329772][ T329] 2 locks held by random/3078:
[ 1354.385093][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1354.502821][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1354.619516][ T329] 2 locks held by random/3079:
[ 1354.674835][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1354.792564][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1354.909255][ T329] 2 locks held by random/3080:
[ 1354.964577][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x161/0x824
[ 1355.082305][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1355.199000][ T329] 2 locks held by random/3081:
[ 1355.254322][ T329] #0: ffff888159045f98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x500/0x824
[ 1355.372048][ T329] #1: ffffffff962d2b00 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.64+0x0/0x30
[ 1355.488743][ T329] 2 locks held by awk/3083:
[ 1355.540945][ T329] #0: ffff8886440c6150 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: walk_component+0x36d/0x5f0
[ 1355.676350][ T329] #1: ffff8886440c5ea8 (&xfs_dir_ilock_class){++++}-{3:3}, at: xfs_ilock_data_map_shared+0x41/0xa0
[ 1355.803446][ T329] =============================================
[ 1355.803446][ T329]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] blk-rq-qos: remove redundant finish_wait to rq_qos_wait.
2020-07-14 23:21 ` [PATCH v2] blk-rq-qos: remove redundant finish_wait to rq_qos_wait Qian Cai
@ 2020-07-15 2:19 ` Stephen Rothwell
2020-07-15 15:32 ` Jens Axboe
0 siblings, 1 reply; 3+ messages in thread
From: Stephen Rothwell @ 2020-07-15 2:19 UTC (permalink / raw)
To: Qian Cai
Cc: Guo Xuenan, axboe, linux-block, wangli74, fangwei1, ming.lei,
josef, linux-next, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1148 bytes --]
Hi all,
On Tue, 14 Jul 2020 19:21:24 -0400 Qian Cai <cai@lca.pw> wrote:
>
> On Sun, Jun 28, 2020 at 09:56:25AM -0400, Guo Xuenan wrote:
> > It is no need do finish_wait twice after acquiring inflight.
> >
> > Signed-off-by: Guo Xuenan <guoxuenan@huawei.com>
> > ---
> > block/blk-rq-qos.c | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c
> > index 656460636ad3..18f3eab9f768 100644
> > --- a/block/blk-rq-qos.c
> > +++ b/block/blk-rq-qos.c
> > @@ -273,8 +273,6 @@ void rq_qos_wait(struct rq_wait *rqw, void *private_data,
> > if (data.got_token)
> > break;
> > if (!has_sleeper && acquire_inflight_cb(rqw, private_data)) {
> > - finish_wait(&rqw->wait, &data.wq);
> > -
> > /*
> > * We raced with wbt_wake_function() getting a token,
> > * which means we now have two. Put our local token
> > --
> > 2.25.4
>
> Reverting this commit fixed an issue that swapping workloads will stall for
> days without being able to make any progress below.
I have reverted that commit from linux-next today.
--
Cheers,
Stephen Rothwell
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] blk-rq-qos: remove redundant finish_wait to rq_qos_wait.
2020-07-15 2:19 ` Stephen Rothwell
@ 2020-07-15 15:32 ` Jens Axboe
0 siblings, 0 replies; 3+ messages in thread
From: Jens Axboe @ 2020-07-15 15:32 UTC (permalink / raw)
To: Stephen Rothwell, Qian Cai
Cc: Guo Xuenan, linux-block, wangli74, fangwei1, ming.lei, josef,
linux-next, linux-kernel
On 7/14/20 8:19 PM, Stephen Rothwell wrote:
> Hi all,
>
> On Tue, 14 Jul 2020 19:21:24 -0400 Qian Cai <cai@lca.pw> wrote:
>>
>> On Sun, Jun 28, 2020 at 09:56:25AM -0400, Guo Xuenan wrote:
>>> It is no need do finish_wait twice after acquiring inflight.
>>>
>>> Signed-off-by: Guo Xuenan <guoxuenan@huawei.com>
>>> ---
>>> block/blk-rq-qos.c | 2 --
>>> 1 file changed, 2 deletions(-)
>>>
>>> diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c
>>> index 656460636ad3..18f3eab9f768 100644
>>> --- a/block/blk-rq-qos.c
>>> +++ b/block/blk-rq-qos.c
>>> @@ -273,8 +273,6 @@ void rq_qos_wait(struct rq_wait *rqw, void *private_data,
>>> if (data.got_token)
>>> break;
>>> if (!has_sleeper && acquire_inflight_cb(rqw, private_data)) {
>>> - finish_wait(&rqw->wait, &data.wq);
>>> -
>>> /*
>>> * We raced with wbt_wake_function() getting a token,
>>> * which means we now have two. Put our local token
>>> --
>>> 2.25.4
>>
>> Reverting this commit fixed an issue that swapping workloads will stall for
>> days without being able to make any progress below.
>
> I have reverted that commit from linux-next today.
Thanks, I'll revert it locally too.
--
Jens Axboe
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-07-15 15:32 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
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2020-07-14 23:21 ` [PATCH v2] blk-rq-qos: remove redundant finish_wait to rq_qos_wait Qian Cai
2020-07-15 2:19 ` Stephen Rothwell
2020-07-15 15:32 ` Jens Axboe
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