From: "Stephen R. van den Berg" <srb@cuci.nl>
To: Chris Murphy <lists@colorremedies.com>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: Kernel traces
Date: Fri, 28 Dec 2018 10:20:36 +0100 [thread overview]
Message-ID: <20181228092036.GA30363@cuci.nl> (raw)
In-Reply-To: <CAJCQCtSCcM0YTtp0f1i=FmrFigsfJEsr+Excwm=YHx4_wN49gg@mail.gmail.com>
Chris Murphy wrote:
>On Wed, Dec 12, 2018 at 12:26 AM Stephen R. van den Berg <srb@cuci.nl> wrote:
>> I'm using CFQ, and I don't think I ever tried a different one.
>> But, btrfs should be compatible with all schedulers.
>But yeah, one of the developers might have more to say about it once
>sysrq+w output is available, which should expose what's stuck or busy.
Ok. Finally have a sysrq+w output of 4.19.8.
The uptime of this system has been a few days. It has already received quite
some btrfs-sends in that time (every night). When the sysrq+w output was
taken, the system started to get more and more processes in a D kernel state
bordering on becoming unusable. I had to hard-reset the system after this
to get it going again.
sysrq: SysRq : Show Blocked State
task PC stack pid father
btrfs-cleaner D 0 276 2 0x80000000
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? find_parent_nodes+0x89d/0x11df
? __schedule+0x4ff/0x524
? page_cache_tree_insert+0xc6/0xc6
? btrfs_find_all_roots_safe+0x9e/0x10f
? btrfs_find_all_roots_safe+0x9e/0x10f
? btrfs_find_all_roots+0x58/0x77
? btrfs_qgroup_trace_extent_post+0x38/0x7e
? btrfs_qgroup_trace_subtree+0x21e/0x362
? do_walk_down+0x3f5/0x495
? walk_down_tree+0x99/0xd4
? btrfs_drop_snapshot+0x2c4/0x5de
? btrfs_kill_all_delayed_nodes+0x5a/0xd1
? btrfs_need_cleaner_sleep+0x27/0x27
? btrfs_clean_one_deleted_snapshot+0xa8/0xb2
? cleaner_kthread+0x7a/0x138
? kthread+0xeb/0xf0
? __kthread_cancel_work+0x68/0x68
? ret_from_fork+0x35/0x40
btrfs-transacti D 0 277 2 0x80000000
Call Trace:
? __schedule+0x4db/0x524
? __switch_to_asm+0x40/0x70
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1ce/0x329
? transaction_kthread+0xa7/0x132
? btrfs_cleanup_transaction+0x3ca/0x3ca
? kthread+0xeb/0xf0
? __kthread_cancel_work+0x68/0x68
? ret_from_fork+0x35/0x40
lldpad D 0 2165 1 0x00000000
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
ntpd D 0 2396 1 0x00000004
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? recalc_sigpending+0x17/0x3f
? dequeue_signal+0x169/0x19a
? do_filp_open+0x52/0xaf
? __set_current_blocked+0x3d/0x55
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
smartd D 0 2424 1 0x00000000
Call Trace:
? __schedule+0x4db/0x524
? unlock_new_inode+0x4a/0x54
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_start_transaction_fallback_global_rsv+0x32/0xbc
? btrfs_unlink+0x30/0xc0
? vfs_unlink+0x81/0xc7
? do_unlinkat+0x111/0x1e3
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
rs:main Q:Reg D 0 7824 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? __accumulate_pelt_segments+0x29/0x3a
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? find_busiest_group+0x108/0x5ef
? btrfs_lookup_file_extent+0x4b/0x66
? btrfs_get_extent+0x176/0x6fb
? _cond_resched+0x20/0x23
? kmem_cache_free+0x25/0xc4
? __do_readpage+0x214/0x564
? start_delalloc_inodes+0x2b8/0x2b8
? mem_cgroup_commit_charge+0xb1/0xf3
? __extent_read_full_page+0xcb/0xdb
? start_delalloc_inodes+0x2b8/0x2b8
? extent_read_full_page+0x42/0x75
? prepare_uptodate_page+0x33/0x8c
? prepare_pages+0xb6/0x15d
? btrfs_buffered_write+0x29d/0x5cf
? btrfs_file_write_iter+0x3a8/0x485
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 7826 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? crc32c+0x66/0x90
? btrfs_lookup_dir_item+0x7d/0xc6
? btrfs_lookup_dentry+0x9d/0x40c
? d_alloc_parallel+0x28a/0x2cb
? btrfs_lookup+0xe/0x2c
? __lookup_slow+0xd4/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? path_lookupat.isra.55+0x107/0x1c3
? load_balance+0x150/0x6ed
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? filename_lookup.part.71+0x6f/0xd2
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? kmem_cache_alloc+0x9a/0x100
? getname_flags+0x49/0x156
? vfs_statx+0x71/0xce
? hrtimer_cancel+0x11/0x1b
? do_nanosleep+0xc0/0x168
? __do_sys_newstat+0x3a/0x6d
? hrtimer_nanosleep+0x9f/0x100
? syscall_trace_enter+0x103/0x19c
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 7885 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? crc32c+0x66/0x90
? btrfs_lookup_dir_item+0x7d/0xc6
? btrfs_lookup_dentry+0x9d/0x40c
? d_alloc_parallel+0x28a/0x2cb
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? btrfs_lookup+0xe/0x2c
? __lookup_slow+0xd4/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? futex_wake+0x11e/0x145
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 7889 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? __switch_to_asm+0x34/0x70
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? futex_wake+0x11e/0x145
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 3974 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 4048 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 4269 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? __count_memcg_events+0x11/0x4e
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 4273 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
hiawatha D 0 4439 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? __count_memcg_events+0x11/0x4e
? do_filp_open+0x52/0xaf
? inet_recvmsg+0x6c/0x98
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
postgres D 0 8067 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? crc32c+0x66/0x90
? btrfs_lookup_dir_item+0x7d/0xc6
? btrfs_lookup_dentry+0x9d/0x40c
? d_alloc_parallel+0x28a/0x2cb
? unlazy_walk+0x45/0x94
? btrfs_lookup+0xe/0x2c
? path_openat+0x5d1/0xa5b
? do_filp_open+0x52/0xaf
? kernel_wait4+0xca/0x113
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
postgres D 0 8531 8067 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? crc32c+0x66/0x90
? btrfs_lookup_dir_item+0x7d/0xc6
? btrfs_lookup_dentry+0x9d/0x40c
? d_alloc_parallel+0x28a/0x2cb
? btrfs_lookup+0xe/0x2c
? __lookup_slow+0xd4/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to+0x1c8/0x37f
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
postgres D 0 8694 3086 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? crc32c+0x66/0x90
? btrfs_lookup_dir_item+0x7d/0xc6
? btrfs_lookup_dentry+0x9d/0x40c
? d_alloc_parallel+0x28a/0x2cb
? unlazy_walk+0x45/0x94
? btrfs_lookup+0xe/0x2c
? path_openat+0x5d1/0xa5b
? do_filp_open+0x52/0xaf
? kernel_wait4+0xca/0x113
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
postgres D 0 8716 8694 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? d_alloc_parallel+0x1d1/0x2cb
? wake_up_q+0x45/0x45
? __lookup_slow+0x73/0x117
? lookup_slow+0x3a/0x52
? walk_component+0x84/0x112
? inode_permission+0x7c/0x115
? link_path_walk.part.53+0x112/0x420
? path_openat+0x164/0xa5b
? __bpf_prog_run32+0x34/0x52
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to+0x1c8/0x37f
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
unbound D 0 9532 3421 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? unix_dgram_sendmsg+0x4b8/0x523
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
pdns_server D 0 10415 9913 0x20020104
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? do_filp_open+0x52/0xaf
? vfs_statx+0x96/0xce
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
pdns_server D 0 10422 9913 0x20020104
Call Trace:
? __schedule+0x4db/0x524
? __switch_to_asm+0x40/0x70
? schedule+0x60/0x71
? __rwsem_down_read_failed_common+0x180/0x1df
? call_rwsem_down_read_failed+0x14/0x30
? down_read+0x1c/0x2f
? lookup_slow+0x2a/0x52
? walk_component+0x84/0x112
? path_lookupat.isra.55+0x107/0x1c3
? filename_lookup.part.71+0x6f/0xd2
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? kmem_cache_alloc+0x9a/0x100
? getname_flags+0x49/0x156
? do_faccessat+0xce/0x1c4
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
pdns_server D 0 10423 9913 0x20020104
Call Trace:
? __schedule+0x4db/0x524
? __switch_to_asm+0x40/0x70
? schedule+0x60/0x71
? __rwsem_down_read_failed_common+0x180/0x1df
? call_rwsem_down_read_failed+0x14/0x30
? down_read+0x1c/0x2f
? lookup_slow+0x2a/0x52
? walk_component+0x84/0x112
? path_lookupat.isra.55+0x107/0x1c3
? filename_lookup.part.71+0x6f/0xd2
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? kmem_cache_alloc+0x9a/0x100
? getname_flags+0x49/0x156
? do_faccessat+0xce/0x1c4
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
pdns_server D 0 10434 9913 0x20020104
Call Trace:
? __schedule+0x4db/0x524
? __switch_to_asm+0x40/0x70
? schedule+0x60/0x71
? __rwsem_down_read_failed_common+0x180/0x1df
? call_rwsem_down_read_failed+0x14/0x30
? down_read+0x1c/0x2f
? lookup_slow+0x2a/0x52
? walk_component+0x84/0x112
? path_lookupat.isra.55+0x107/0x1c3
? filename_lookup.part.71+0x6f/0xd2
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? kmem_cache_alloc+0x9a/0x100
? getname_flags+0x49/0x156
? do_faccessat+0xce/0x1c4
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
pdns_server D 0 11724 9913 0x20020104
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_read_failed_common+0x180/0x1df
? call_rwsem_down_read_failed+0x14/0x30
? down_read+0x1c/0x2f
? lookup_slow+0x2a/0x52
? walk_component+0x84/0x112
? path_lookupat.isra.55+0x107/0x1c3
? filename_lookup.part.71+0x6f/0xd2
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? kmem_cache_alloc+0x9a/0x100
? getname_flags+0x49/0x156
? do_faccessat+0xce/0x1c4
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
mysqld D 0 7366 12050 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_sync_file+0x247/0x321
? do_fsync+0x2e/0x47
? __x64_sys_fsync+0x10/0x13
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
qmgr D 0 12580 12570 0x00000104
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_read_failed_common+0x180/0x1df
? call_rwsem_down_read_failed_killable+0x14/0x30
? down_read_killable+0x1c/0x40
? iterate_dir+0x59/0x131
? __do_sys_getdents+0x91/0xf6
? filldir64+0xd0/0xd0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
kworker/u16:4 D 0 29942 2 0x80000000
Workqueue: btrfs-endio-write btrfs_endio_write_helper
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? find_parent_nodes+0x89d/0x11df
? btrfs_find_all_roots_safe+0x9e/0x10f
? btrfs_find_all_roots_safe+0x9e/0x10f
? btrfs_find_all_roots+0x58/0x77
? btrfs_qgroup_trace_extent_post+0x38/0x7e
? btrfs_add_delayed_tree_ref+0x2d9/0x300
? add_pinned_bytes+0x38/0x38
? btrfs_inc_extent_ref+0x74/0xe3
? __btrfs_mod_ref+0x1bc/0x1eb
? update_ref_for_cow+0x153/0x260
? __btrfs_cow_block+0x205/0x457
? btrfs_cow_block+0xc6/0x129
? btrfs_search_slot+0x296/0x71d
? __switch_to_asm+0x34/0x70
? btrfs_lookup_file_extent+0x4b/0x66
? __btrfs_drop_extents+0x158/0x9d6
? kmem_cache_free+0x25/0xc4
? __set_extent_bit+0x3d0/0x3f8
? insert_reserved_file_extent.constprop.58+0x9d/0x2b8
? btrfs_finish_ordered_io+0x2e1/0x5ac
? normal_work_helper+0xfe/0x243
? process_one_work+0x18d/0x271
? rescuer_thread+0x278/0x278
? worker_thread+0x194/0x23f
? kthread+0xeb/0xf0
? __kthread_cancel_work+0x68/0x68
? ret_from_fork+0x35/0x40
kworker/u16:3 D 0 9685 2 0x80000000
Workqueue: btrfs-endio-write btrfs_endio_write_helper
Call Trace:
? __schedule+0x4db/0x524
? __switch_to_asm+0x34/0x70
? schedule+0x60/0x71
? btrfs_tree_read_lock+0xc1/0xf8
? finish_wait+0x60/0x60
? btrfs_read_lock_root_node+0x1d/0x3b
? btrfs_search_slot+0x181/0x71d
? kmem_cache_alloc_trace+0xaf/0xbd
? btrfs_lookup_file_extent+0x4b/0x66
? __btrfs_drop_extents+0x158/0x9d6
? test_clear_page_writeback+0x151/0x164
? kmem_cache_free+0x25/0xc4
? __set_extent_bit+0x3d0/0x3f8
? insert_reserved_file_extent.constprop.58+0x9d/0x2b8
? btrfs_finish_ordered_io+0x2e1/0x5ac
? normal_work_helper+0xfe/0x243
? process_one_work+0x18d/0x271
? rescuer_thread+0x278/0x278
? worker_thread+0x194/0x23f
? kthread+0xeb/0xf0
? __kthread_cancel_work+0x68/0x68
? ret_from_fork+0x35/0x40
btrfs D 0 9998 9896 0x00000000
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_commit_transaction+0x21c/0x711
? finish_wait+0x60/0x60
? btrfs_ioctl_send+0x579/0xc54
? _btrfs_ioctl_send+0xaf/0xf2
? _btrfs_ioctl_send+0xc7/0xf2
? node_tag_clear+0x2a/0x69
? idr_alloc_u32+0xa5/0xc8
? __radix_tree_lookup+0x6b/0xa5
? btrfs_ioctl+0x16e3/0x2a51
? task_rq_unlock.isra.43+0xd/0x1f
? cpu_cgroup_fork+0x4a/0x67
? freezer_css_free+0xa/0xa
? select_task_rq_fair+0x6da/0xb52
? __accumulate_pelt_segments+0x29/0x3a
? update_cfs_rq_load_avg+0x124/0x150
? vfs_ioctl+0x1e/0x2b
? btrfs_ioctl_get_supported_features+0x22/0x22
? vfs_ioctl+0x1e/0x2b
? do_vfs_ioctl+0x523/0x54c
? task_rq_unlock.isra.43+0xd/0x1f
? wake_up_new_task+0x110/0x12f
? ksys_ioctl+0x3e/0x5d
? __x64_sys_ioctl+0x16/0x19
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 14456 14452 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? do_sys_ftruncate+0xc6/0xf9
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 19976 19974 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
default.script D 0 22674 11529 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 25502 25500 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 27719 10299 0x20020100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? swap_free+0x53/0x6d
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
scp D 0 31033 31029 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 4039 4037 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 9821 9819 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 15307 15305 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 20769 20767 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 26250 26248 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 28466 10299 0x20020100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? step_into+0x58/0x1a8
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? path_openat+0x293/0xa5b
? swap_free+0x53/0x6d
? unlock_page+0xa/0x1b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
scp D 0 31805 31803 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 418 417 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? kernel_wait4+0xe0/0x113
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 436 435 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 439 10299 0x20020100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? step_into+0x58/0x1a8
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? path_openat+0x293/0xa5b
? swap_free+0x53/0x6d
? unlock_page+0xa/0x1b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
apt.systemd.dai D 0 452 451 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 465 463 0x00000000
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 491 489 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 510 505 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? kernel_wait4+0xe0/0x113
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 523 522 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
apt.systemd.dai D 0 535 534 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cp D 0 3321 3320 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_setattr+0x234/0x499
? notify_change+0x268/0x347
? do_truncate+0x82/0xb6
? path_openat+0x95a/0xa5b
? _cond_resched+0x20/0x23
? do_filp_open+0x52/0xaf
? _copy_to_user+0x22/0x28
? cp_new_stat+0x151/0x181
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 4985 4981 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 10762 10760 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cp D 0 10911 10909 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? __d_lookup_rcu+0xdb/0x109
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? do_filp_open+0x52/0xaf
? _copy_to_user+0x22/0x28
? cp_new_stat+0x151/0x181
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 16301 16296 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 22063 22059 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 28266 28264 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 30615 10299 0x20020100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? step_into+0x58/0x1a8
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? path_openat+0x293/0xa5b
? swap_free+0x53/0x6d
? unlock_page+0xa/0x1b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
scp D 0 1758 1754 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 7952 7950 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 14337 14330 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 20292 20290 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 26358 26354 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 32592 32589 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 2698 10299 0x20020100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? step_into+0x58/0x1a8
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? path_openat+0x293/0xa5b
? swap_free+0x53/0x6d
? unlock_page+0xa/0x1b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
scp D 0 6570 6568 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 13064 13061 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 19322 19320 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 25998 25996 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
kworker/u16:5 D 0 30954 2 0x80000000
Workqueue: writeback wb_workfn (flush-btrfs-1)
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? btrfs_tree_lock+0xb1/0x1a8
? finish_wait+0x60/0x60
? lock_extent_buffer_for_io+0x3b/0x166
? btree_write_cache_pages+0x1cb/0x29b
? do_writepages+0x2d/0x56
? __writeback_single_inode+0x84/0x2d3
? writeback_sb_inodes+0x220/0x3ad
? wb_writeback+0x157/0x281
? wb_workfn+0x134/0x2e5
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? finish_task_switch+0x113/0x1e6
? process_one_work+0x18d/0x271
? rescuer_thread+0x278/0x278
? worker_thread+0x194/0x23f
? kthread+0xeb/0xf0
? __kthread_cancel_work+0x68/0x68
? ret_from_fork+0x35/0x40
scp D 0 32252 32250 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 6528 6526 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
verify D 0 6825 12570 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_sync_file+0x247/0x321
? do_fsync+0x2e/0x47
? __x64_sys_fdatasync+0x13/0x16
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cleanup D 0 6826 12570 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? do_filp_open+0x52/0xaf
? pipe_read+0x21c/0x22f
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
cron D 0 9378 10299 0x20020100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? step_into+0x58/0x1a8
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? path_openat+0x293/0xa5b
? swap_free+0x53/0x6d
? unlock_page+0xa/0x1b
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_int80_syscall_32+0x50/0x5d
? entry_INT80_compat+0x7d/0x90
scp D 0 13410 13406 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 19990 19988 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
scp D 0 26896 26894 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? __rwsem_down_write_failed_common+0x2ff/0x382
? call_rwsem_down_write_failed+0x13/0x20
? down_write+0x29/0x38
? btrfs_file_write_iter+0xd6/0x485
? pipe_read+0x21c/0x22f
? __vfs_write+0x9b/0xd9
? vfs_write+0xa2/0xdf
? ksys_write+0x5e/0xa0
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
bash D 0 30962 30930 0x00000100
Call Trace:
? __schedule+0x4db/0x524
? schedule+0x60/0x71
? wait_current_trans+0xa1/0xdf
? finish_wait+0x60/0x60
? start_transaction+0x1b2/0x329
? btrfs_create+0x5a/0x1bd
? path_openat+0x643/0xa5b
? path_lookupat.isra.55+0x19c/0x1c3
? do_filp_open+0x52/0xaf
? _cond_resched+0x20/0x23
? slab_pre_alloc_hook+0x2b/0x4d
? slab_post_alloc_hook.isra.66+0xa/0x1a
? __alloc_fd+0x136/0x149
? do_sys_open+0x7c/0x119
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
sync D 0 32082 31611 0x00000000
Call Trace:
? __schedule+0x4db/0x524
? bdi_split_work_to_wbs+0xfa/0x186
? default_file_splice_write+0x1f/0x1f
? schedule+0x60/0x71
? wb_wait_for_completion+0x5e/0x88
? finish_wait+0x60/0x60
? sync_inodes_sb+0xa7/0x226
? __queue_work+0x244/0x257
? default_file_splice_write+0x1f/0x1f
? iterate_supers+0x73/0xb4
? ksys_sync+0x41/0xa6
? __ia32_sys_sync+0xa/0xd
? do_syscall_64+0x4e/0x5b
? entry_SYSCALL_64_after_hwframe+0x44/0xa9
--
Stephen.
next prev parent reply other threads:[~2018-12-28 9:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 12:05 Kernel traces Stephen R. van den Berg
2018-12-10 16:54 ` Chris Murphy
2018-12-11 11:52 ` Stephen R. van den Berg
2018-12-12 6:16 ` Chris Murphy
2018-12-12 7:26 ` Stephen R. van den Berg
2018-12-12 21:01 ` Chris Murphy
2018-12-28 9:20 ` Stephen R. van den Berg [this message]
2018-12-28 10:10 ` Qu Wenruo
2018-12-28 13:40 ` Stephen R. van den Berg
2018-12-28 13:46 ` Qu Wenruo
2018-12-28 15:00 ` Stephen R. van den Berg
2019-01-23 15:50 ` Stephen R. van den Berg
2019-01-25 8:01 ` New hang (Re: Kernel traces), sysreq+w output Stephen R. van den Berg
2019-01-25 8:04 ` Stephen R. van den Berg
2019-02-05 22:18 ` Stephen R. van den Berg
2019-02-06 0:22 ` Qu Wenruo
2019-02-06 0:36 ` Martin Raiber
2019-07-26 16:31 ` qgroup: Don't trigger backref walk at delayed ref insert time (Re: Kernel traces) Stephen R. van den Berg
2019-07-26 23:24 ` Qu Wenruo
-- strict thread matches above, loose matches on Subject: below --
2018-12-11 15:21 Kernel traces Tomasz Chmielewski
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