It happened again, and I managed to get a backtrace. [362108.290770] ? _raw_spin_unlock+0x12/0x23 [362108.290776] ? nlmsvc_retry_blocked+0x1d3/0x1e3 [lockd] [362108.290782] ? grace_ender+0xe/0xe [lockd] [362108.290787] lockd+0xcd/0x129 [lockd] [362108.290794] kthread+0x115/0x11d [362108.290798] ? kthread_park+0x76/0x76 [362108.290801] ret_from_fork+0x35/0x40 [362108.290806] nfsd S 0 2307 2 0x80000000 [362108.290809] Call Trace: [362108.290813] ? __schedule+0x59d/0x5f1 [362108.290816] ? preempt_count_add+0x8a/0x9c [362108.290820] schedule+0x6a/0x85 [362108.290825] schedule_timeout+0x2f7/0x33c [362108.290829] ? collect_expired_timers+0x97/0x97 [362108.290842] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.290855] svc_recv+0x291/0x7da [sunrpc] [362108.290860] ? __mutex_unlock_slowpath.isra.6+0x1e8/0x20a [362108.290871] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.290881] nfsd+0xe7/0x150 [nfsd] [362108.290887] kthread+0x115/0x11d [362108.290891] ? kthread_park+0x76/0x76 [362108.290895] ret_from_fork+0x35/0x40 [362108.290898] nfsd D 0 2308 2 0x80000000 [362108.290901] Call Trace: [362108.290906] ? __schedule+0x59d/0x5f1 [362108.290910] schedule+0x6a/0x85 [362108.290916] btrfs_tree_read_lock+0xbb/0xf1 [362108.290921] ? wait_woken+0x6d/0x6d [362108.290924] btrfs_read_lock_root_node+0x1d/0x3b [362108.290928] btrfs_search_slot+0x181/0x812 [362108.290934] ? crc32c+0x66/0x90 [362108.290938] btrfs_lookup_dir_item+0x7c/0xc4 [362108.290942] btrfs_lookup_dentry+0xae/0x443 [362108.290946] ? preempt_count_add+0x7d/0x9c [362108.290950] ? d_alloc_parallel+0x44b/0x4a3 [362108.290955] ? btrfs_getattr+0xaa/0xdf [362108.290958] btrfs_lookup+0xe/0x2c [362108.290963] __lookup_slow+0xec/0x148 [362108.290967] lookup_one_len+0x61/0x7c [362108.290978] nfsd_lookup_dentry+0x226/0x31e [nfsd] [362108.290993] ? write_bytes_to_xdr_buf+0x39/0xc5 [sunrpc] [362108.291005] nfsd_lookup+0x62/0x123 [nfsd] [362108.291020] ? nfsd4_encode_operation+0xf0/0x18e [nfsd] [362108.291033] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.291045] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.291060] svc_process+0x524/0x6e2 [sunrpc] [362108.291067] ? __mutex_unlock_slowpath.isra.6+0x1e8/0x20a [362108.291078] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.291087] nfsd+0xf9/0x150 [nfsd] [362108.291093] kthread+0x115/0x11d [362108.291097] ? kthread_park+0x76/0x76 [362108.291100] ret_from_fork+0x35/0x40 [362108.291104] nfsd D 0 2309 2 0x80000000 [362108.291107] Call Trace: [362108.291112] ? __schedule+0x59d/0x5f1 [362108.291117] schedule+0x6a/0x85 [362108.291121] btrfs_tree_read_lock+0xbb/0xf1 [362108.291126] ? wait_woken+0x6d/0x6d [362108.291129] btrfs_read_lock_root_node+0x1d/0x3b [362108.291133] btrfs_search_slot+0x181/0x812 [362108.291137] ? crc32c+0x66/0x90 [362108.291140] btrfs_lookup_dir_item+0x7c/0xc4 [362108.291144] btrfs_lookup_dentry+0xae/0x443 [362108.291148] ? preempt_count_add+0x7d/0x9c [362108.291152] ? d_alloc_parallel+0x44b/0x4a3 [362108.291156] ? btrfs_getattr+0xaa/0xdf [362108.291159] btrfs_lookup+0xe/0x2c [362108.291171] __lookup_slow+0xec/0x148 [362108.291175] lookup_one_len+0x61/0x7c [362108.291186] nfsd_lookup_dentry+0x226/0x31e [nfsd] [362108.291201] ? write_bytes_to_xdr_buf+0x39/0xc5 [sunrpc] [362108.291212] nfsd_lookup+0x62/0x123 [nfsd] [362108.291225] ? nfsd4_encode_operation+0xf0/0x18e [nfsd] [362108.291238] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.291250] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.291265] svc_process+0x524/0x6e2 [sunrpc] [362108.291271] ? __mutex_unlock_slowpath.isra.6+0x1e8/0x20a [362108.291281] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.291291] nfsd+0xf9/0x150 [nfsd] [362108.291297] kthread+0x115/0x11d [362108.291301] ? kthread_park+0x76/0x76 [362108.291304] ret_from_fork+0x35/0x40 [362108.291308] nfsd D 0 2310 2 0x80000000 [362108.291311] Call Trace: [362108.291316] ? __schedule+0x59d/0x5f1 [362108.291320] schedule+0x6a/0x85 [362108.291325] rwsem_down_write_failed+0x1af/0x210 [362108.291330] call_rwsem_down_write_failed+0x13/0x20 [362108.291335] down_write+0x20/0x2e [362108.291346] nfsd_lookup_dentry+0x209/0x31e [nfsd] [362108.291360] ? write_bytes_to_xdr_buf+0x39/0xc5 [sunrpc] [362108.291371] nfsd_lookup+0x62/0x123 [nfsd] [362108.291385] ? nfsd4_encode_operation+0xf0/0x18e [nfsd] [362108.291397] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.291409] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.291423] svc_process+0x524/0x6e2 [sunrpc] [362108.291428] ? __mutex_unlock_slowpath.isra.6+0x1e8/0x20a [362108.291439] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.291448] nfsd+0xf9/0x150 [nfsd] [362108.291454] kthread+0x115/0x11d [362108.291458] ? kthread_park+0x76/0x76 [362108.291461] ret_from_fork+0x35/0x40 [362108.291465] nfsd D 0 2311 2 0x80000000 [362108.291468] Call Trace: [362108.291473] ? __schedule+0x59d/0x5f1 [362108.291477] schedule+0x6a/0x85 [362108.291482] rwsem_down_write_failed+0x1af/0x210 [362108.291487] call_rwsem_down_write_failed+0x13/0x20 [362108.291492] down_write+0x20/0x2e [362108.291502] nfsd_lookup_dentry+0x209/0x31e [nfsd] [362108.291516] ? write_bytes_to_xdr_buf+0x39/0xc5 [sunrpc] [362108.291527] nfsd_lookup+0x62/0x123 [nfsd] [362108.291540] ? nfsd4_encode_operation+0xf0/0x18e [nfsd] [362108.291553] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.291564] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.291578] svc_process+0x524/0x6e2 [sunrpc] [362108.291590] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.291599] nfsd+0xf9/0x150 [nfsd] [362108.291605] kthread+0x115/0x11d [362108.291609] ? kthread_park+0x76/0x76 [362108.291612] ret_from_fork+0x35/0x40 [362108.291616] nfsd D 0 2312 2 0x80000000 [362108.291619] Call Trace: [362108.291623] ? __schedule+0x59d/0x5f1 [362108.291627] schedule+0x6a/0x85 [362108.291632] rwsem_down_write_failed+0x1af/0x210 [362108.291637] call_rwsem_down_write_failed+0x13/0x20 [362108.291642] down_write+0x20/0x2e [362108.291652] nfsd_lookup_dentry+0x209/0x31e [nfsd] [362108.291666] ? write_bytes_to_xdr_buf+0x39/0xc5 [sunrpc] [362108.291677] nfsd_lookup+0x62/0x123 [nfsd] [362108.291690] ? nfsd4_encode_operation+0xf0/0x18e [nfsd] [362108.291702] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.291714] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.291728] svc_process+0x524/0x6e2 [sunrpc] [362108.291739] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.291749] nfsd+0xf9/0x150 [nfsd] [362108.291755] kthread+0x115/0x11d [362108.291759] ? kthread_park+0x76/0x76 [362108.291762] ret_from_fork+0x35/0x40 [362108.291766] nfsd D 0 2313 2 0x80000000 [362108.291769] Call Trace: [362108.291773] ? __schedule+0x59d/0x5f1 [362108.291777] schedule+0x6a/0x85 [362108.291782] btrfs_tree_read_lock+0xbb/0xf1 [362108.291787] ? wait_woken+0x6d/0x6d [362108.291790] btrfs_read_lock_root_node+0x1d/0x3b [362108.291794] btrfs_search_slot+0x181/0x812 [362108.291798] ? crc32c+0x66/0x90 [362108.291801] btrfs_lookup_dir_item+0x7c/0xc4 [362108.291805] btrfs_lookup_dentry+0xae/0x443 [362108.291808] ? preempt_count_add+0x7d/0x9c [362108.291813] ? d_alloc_parallel+0x44b/0x4a3 [362108.291817] ? btrfs_getattr+0xaa/0xdf [362108.291820] btrfs_lookup+0xe/0x2c [362108.291825] __lookup_slow+0xec/0x148 [362108.291829] lookup_one_len+0x61/0x7c [362108.291840] nfsd_lookup_dentry+0x226/0x31e [nfsd] [362108.291853] ? write_bytes_to_xdr_buf+0x39/0xc5 [sunrpc] [362108.291864] nfsd_lookup+0x62/0x123 [nfsd] [362108.291877] ? nfsd4_encode_operation+0xf0/0x18e [nfsd] [362108.291890] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.291901] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.291915] svc_process+0x524/0x6e2 [sunrpc] [362108.291926] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.291936] nfsd+0xf9/0x150 [nfsd] [362108.291941] kthread+0x115/0x11d [362108.291946] ? kthread_park+0x76/0x76 [362108.291949] ret_from_fork+0x35/0x40 [362108.291953] nfsd D 0 2314 2 0x80000000 [362108.291955] Call Trace: [362108.291960] ? __schedule+0x59d/0x5f1 [362108.291964] schedule+0x6a/0x85 [362108.291969] btrfs_tree_read_lock+0xbb/0xf1 [362108.291973] ? wait_woken+0x6d/0x6d [362108.291978] find_parent_nodes+0x91d/0x12b8 [362108.291985] ? btrfs_find_all_roots_safe+0x9c/0x107 [362108.291988] btrfs_find_all_roots_safe+0x9c/0x107 [362108.291992] btrfs_find_all_roots+0x57/0x75 [362108.291997] btrfs_qgroup_trace_extent_post+0x37/0x7c [362108.292002] btrfs_add_delayed_tree_ref+0x305/0x32b [362108.292007] ? btrfs_issue_discard+0x6c/0x11e [362108.292010] btrfs_inc_extent_ref+0x73/0xe1 [362108.292014] ? add_pinned_bytes+0x38/0x38 [362108.292018] __btrfs_mod_ref+0x1e0/0x20e [362108.292023] update_ref_for_cow+0x16c/0x28b [362108.292027] __btrfs_cow_block+0x217/0x4b1 [362108.292031] btrfs_cow_block+0x107/0x17f [362108.292035] btrfs_search_slot+0x31b/0x812 [362108.292040] btrfs_insert_empty_items+0x53/0x96 [362108.292044] insert_with_overflow+0x44/0xfb [362108.292048] btrfs_insert_dir_item+0xd8/0x205 [362108.292052] btrfs_add_link+0x11a/0x36f [362108.292057] ? __btrfs_release_delayed_node+0x165/0x1bb [362108.292061] btrfs_add_nondir+0x1d/0x28 [362108.292064] btrfs_create+0x154/0x1d0 [362108.292070] vfs_create+0xbf/0xef [362108.292082] do_nfsd_create+0x2be/0x41d [nfsd] [362108.292096] nfsd4_open+0x223/0x578 [nfsd] [362108.292109] nfsd4_proc_compound+0x44a/0x562 [nfsd] [362108.292121] nfsd_dispatch+0xb9/0x16e [nfsd] [362108.292134] svc_process+0x524/0x6e2 [sunrpc] [362108.292146] ? nfsd_destroy+0x5f/0x5f [nfsd] [362108.292155] nfsd+0xf9/0x150 [nfsd] [362108.292161] kthread+0x115/0x11d [362108.292174] ? kthread_park+0x76/0x76 [362108.292177] ret_from_fork+0x35/0x40 [362108.292182] anvil S 0 2347 2296 0x00000100 [362108.292184] Call Trace: [362108.292189] ? __schedule+0x59d/0x5f1 [362108.292194] schedule+0x6a/0x85 [362108.292197] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.292200] ? _raw_spin_lock_irq+0x14/0x30 [362108.292202] ? _raw_spin_unlock_irq+0x13/0x24 [362108.292207] ? ep_scan_ready_list.constprop.3+0x187/0x1bb [362108.292212] ep_poll+0x21b/0x31f [362108.292217] ? wake_up_q+0x4d/0x4d [362108.292221] do_epoll_wait+0x92/0xb2 [362108.292226] __x64_sys_epoll_wait+0x1a/0x1d [362108.292229] do_syscall_64+0x7e/0x133 [362108.292233] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292235] RIP: 0033:0x7fa7b34ac7ab [362108.292240] Code: Bad RIP value. [362108.292241] RSP: 002b:00007ffe34927d10 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [362108.292245] RAX: ffffffffffffffda RBX: 0000557846d908c0 RCX: 00007fa7b34ac7ab [362108.292247] RDX: 0000000000000007 RSI: 0000557846d91e90 RDI: 000000000000000c [362108.292249] RBP: 0000557846d89f50 R08: 00000000ffffffd0 R09: 1999999999999998 [362108.292251] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000ffffffff [362108.292253] R13: 0000000000000054 R14: 000000000000000c R15: 0000000000000000 [362108.292256] log S 0 2348 2296 0x00000100 [362108.292260] Call Trace: [362108.292264] ? __schedule+0x59d/0x5f1 [362108.292269] schedule+0x6a/0x85 [362108.292271] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.292277] ? __seccomp_filter+0x3e/0x1f2 [362108.292281] ep_poll+0x21b/0x31f [362108.292286] ? wake_up_q+0x4d/0x4d [362108.292290] do_epoll_wait+0x92/0xb2 [362108.292295] __x64_sys_epoll_wait+0x1a/0x1d [362108.292298] do_syscall_64+0x7e/0x133 [362108.292302] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292304] RIP: 0033:0x7f32e91647ab [362108.292308] Code: Bad RIP value. [362108.292309] RSP: 002b:00007ffdba3b1180 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [362108.292313] RAX: ffffffffffffffda RBX: 0000559d73277da0 RCX: 00007f32e91647ab [362108.292315] RDX: 000000000000001b RSI: 0000559d73277e10 RDI: 0000000000000023 [362108.292316] RBP: 0000559d73271f30 R08: 0000559d73279a50 R09: 0000559d73279a00 [362108.292318] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000ffffffff [362108.292320] R13: 0000000000000144 R14: 000000000000000c R15: 0000000000000000 [362108.292324] config S 0 2349 2296 0x00000100 [362108.292326] Call Trace: [362108.292331] ? __schedule+0x59d/0x5f1 [362108.292335] schedule+0x6a/0x85 [362108.292338] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.292343] ? __seccomp_filter+0x3e/0x1f2 [362108.292348] ep_poll+0x21b/0x31f [362108.292351] ? _raw_spin_unlock+0x12/0x23 [362108.292355] ? wake_up_q+0x4d/0x4d [362108.292359] do_epoll_wait+0x92/0xb2 [362108.292364] __x64_sys_epoll_wait+0x1a/0x1d [362108.292367] do_syscall_64+0x7e/0x133 [362108.292371] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292373] RIP: 0033:0x7fc472a707ab [362108.292377] Code: Bad RIP value. [362108.292378] RSP: 002b:00007ffc28445540 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [362108.292381] RAX: ffffffffffffffda RBX: 000055df0fbc8720 RCX: 00007fc472a707ab [362108.292383] RDX: 0000000000000004 RSI: 000055df0fb469a0 RDI: 000000000000000a [362108.292385] RBP: 000055df0fb00ec0 R08: 000055df0fb47530 R09: 000055df0fb474e0 [362108.292386] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000ffffffff [362108.292388] R13: 0000000000000030 R14: 000000000000000c R15: 0000000000000000 [362108.292392] clamd S 0 2357 1 0x00000000 [362108.292394] Call Trace: [362108.292399] ? __schedule+0x59d/0x5f1 [362108.292404] ? hrtimer_try_to_cancel+0x29/0x119 [362108.292408] schedule+0x6a/0x85 [362108.292410] schedule_hrtimeout_range_clock+0xb0/0xf4 [362108.292414] ? hrtimer_init+0xf4/0xf4 [362108.292419] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.292423] do_sys_poll+0x383/0x42b [362108.292428] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.292433] ? __wake_up_common_lock+0x8b/0xd0 [362108.292440] ? merge_state+0x95/0x10a [362108.292442] ? preempt_count_add+0x8a/0x9c [362108.292445] ? _raw_spin_lock+0x13/0x2f [362108.292447] ? _raw_spin_unlock+0x12/0x23 [362108.292451] ? block_rsv_release_bytes+0x96/0x2a2 [362108.292456] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.292460] ? btrfs_buffered_write+0x554/0x5ff [362108.292464] ? preempt_count_add+0x8a/0x9c [362108.292466] ? _raw_spin_lock+0x13/0x2f [362108.292469] ? _raw_spin_unlock+0x12/0x23 [362108.292472] ? btrfs_file_write_iter+0x419/0x49c [362108.292476] ? _copy_to_user+0x22/0x28 [362108.292480] ? read_null+0x8/0x8 [362108.292484] ? timespec64_add_safe+0x36/0x82 [362108.292488] __se_sys_poll+0x5a/0xd6 [362108.292492] do_syscall_64+0x7e/0x133 [362108.292495] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292497] RIP: 0033:0x7f305a4080a3 [362108.292502] Code: Bad RIP value. [362108.292503] RSP: 002b:00007ffc419b38a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007 [362108.292506] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00007f305a4080a3 [362108.292508] RDX: 00000000000927c0 RSI: 0000000000000001 RDI: 000055dd3d819a80 [362108.292510] RBP: 00007ffc419b39d0 R08: 0000000000000000 R09: 00007ffc419b2b40 [362108.292511] R10: 00007f305a497e80 R11: 0000000000000293 R12: 000055dd3bb4d350 [362108.292513] R13: 00007ffc419b4540 R14: 0000000000000000 R15: 0000000000000000 [362108.292516] clamd S 0 2358 1 0x00000000 [362108.292519] Call Trace: [362108.292524] ? __schedule+0x59d/0x5f1 [362108.292529] schedule+0x6a/0x85 [362108.292531] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.292534] ? preempt_count_add+0x8a/0x9c [362108.292537] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.292539] ? preempt_count_add+0x8a/0x9c [362108.292542] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.292546] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.292550] do_sys_poll+0x383/0x42b [362108.292558] ? intel_pstate_update_util+0x20/0x3b4 [362108.292562] ? __update_load_avg_cfs_rq+0xf1/0x182 [362108.292566] ? enqueue_entity+0x535/0x684 [362108.292569] ? select_task_rq_fair+0xb33/0xb45 [362108.292573] ? enqueue_task_fair+0xc2/0x5fd [362108.292577] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.292581] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.292585] ? pollwake+0x5b/0x75 [362108.292588] ? wake_up_q+0x4d/0x4d [362108.292592] ? __wake_up_common+0xaa/0x126 [362108.292595] ? preempt_count_add+0x7d/0x9c [362108.292600] ? __mnt_drop_write+0x25/0x37 [362108.292603] ? file_update_time+0xd6/0xfa [362108.292606] ? __sb_end_write+0x4b/0x5d [362108.292610] ? pipe_write+0x357/0x369 [362108.292616] ? vfs_write+0x121/0x16b [362108.292620] __se_sys_poll+0x5a/0xd6 [362108.292623] do_syscall_64+0x7e/0x133 [362108.292627] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292629] RIP: 0033:0x7f305a4080a3 [362108.292633] Code: Bad RIP value. [362108.292634] RSP: 002b:00007f302c21e8d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007 [362108.292637] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f305a4080a3 [362108.292639] RDX: 00000000ffffffff RSI: 0000000000000002 RDI: 00007f3024000b20 [362108.292640] RBP: 00007f302c21ea00 R08: 0000000000000000 R09: 00007f30240008d0 [362108.292642] R10: 00007f3024000080 R11: 0000000000000293 R12: 00007ffc419b395e [362108.292644] R13: 00007ffc419b395f R14: 0000000000802000 R15: 00007ffc419b3960 [362108.292647] /usr/sbin/amavi S 0 2359 1 0x00000100 [362108.292650] Call Trace: [362108.292655] ? __schedule+0x59d/0x5f1 [362108.292659] ? hrtimer_try_to_cancel+0x29/0x119 [362108.292663] schedule+0x6a/0x85 [362108.292665] schedule_hrtimeout_range_clock+0xb0/0xf4 [362108.292683] ? hrtimer_init+0xf4/0xf4 [362108.292684] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.292685] do_select+0x5f1/0x643 [362108.292688] ? __switch_to_asm+0x34/0x70 [362108.292688] ? __switch_to_asm+0x40/0x70 [362108.292689] ? __switch_to_asm+0x34/0x70 [362108.292690] ? __switch_to_asm+0x40/0x70 [362108.292691] ? __switch_to_asm+0x34/0x70 [362108.292692] ? __switch_to_asm+0x40/0x70 [362108.292693] ? __switch_to_asm+0x34/0x70 [362108.292694] ? __switch_to_asm+0x40/0x70 [362108.292694] ? __switch_to_asm+0x34/0x70 [362108.292696] ? __switch_to_asm+0x40/0x70 [362108.292696] ? __switch_to_asm+0x34/0x70 [362108.292697] ? __switch_to_asm+0x40/0x70 [362108.292698] ? __switch_to_asm+0x34/0x70 [362108.292699] ? __switch_to_asm+0x40/0x70 [362108.292700] ? __switch_to_asm+0x34/0x70 [362108.292701] ? __switch_to_asm+0x40/0x70 [362108.292702] ? __switch_to_asm+0x34/0x70 [362108.292703] ? __switch_to_asm+0x40/0x70 [362108.292704] ? __switch_to_asm+0x34/0x70 [362108.292704] ? __switch_to_asm+0x40/0x70 [362108.292705] ? _raw_spin_unlock_irq+0x13/0x24 [362108.292706] ? finish_task_switch+0x181/0x269 [362108.292708] ? __schedule+0x5a5/0x5f1 [362108.292709] ? __alloc_pages_nodemask+0x14c/0xca7 [362108.292710] ? preempt_schedule_irq+0x59/0x7e [362108.292712] ? apic_timer_interrupt+0xa/0x20 [362108.292714] ? ___bpf_prog_run+0x15/0xe22 [362108.292715] ? ___bpf_prog_run+0xe19/0xe22 [362108.292717] ? __bpf_prog_run32+0x39/0x59 [362108.292718] core_sys_select+0x196/0x248 [362108.292720] ? seccomp_run_filters+0xf5/0x134 [362108.292722] ? apic_timer_interrupt+0xa/0x20 [362108.292723] ? __seccomp_filter+0x3e/0x1f2 [362108.292724] ? group_send_sig_info+0x31/0x59 [362108.292725] ? kill_pid_info+0x51/0x69 [362108.292726] ? timespec64_add_safe+0x36/0x82 [362108.292728] kern_select+0x97/0xcf [362108.292729] __x64_sys_select+0x20/0x23 [362108.292730] do_syscall_64+0x7e/0x133 [362108.292731] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292732] RIP: 0033:0x7f4cbcf53e9b [362108.292734] Code: Bad RIP value. [362108.292734] RSP: 002b:00007ffffa950a40 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [362108.292735] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4cbcf53e9b [362108.292736] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [362108.292737] RBP: 000055e3abb31580 R08: 00007ffffa950ac0 R09: 0000000000000080 [362108.292737] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffffa950af8 [362108.292738] R13: 00007ffffa950ad0 R14: 0000000000000000 R15: 0000000000000000 [362108.292740] /usr/sbin/amavi S 0 2361 2359 0x00000100 [362108.292741] Call Trace: [362108.292743] ? __schedule+0x59d/0x5f1 [362108.292744] schedule+0x6a/0x85 [362108.292745] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.292746] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.292748] ? add_wait_queue+0x15/0x3e [362108.292749] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.292750] ? tcp_poll+0x3a/0x1fe [362108.292752] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.292753] do_select+0x5f1/0x643 [362108.292756] ? uncompress_inline+0x13a/0x13a [362108.292758] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.292759] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.292760] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.292761] ? __alloc_pages_nodemask+0x14c/0xca7 [362108.292763] ? mem_cgroup_event_ratelimit.isra.10+0x36/0x86 [362108.292765] ? memcg_check_events+0x2a/0x172 [362108.292767] ? mem_cgroup_commit_charge+0xaa/0x10d [362108.292768] ? ___bpf_prog_run+0xe19/0xe22 [362108.292769] ? __bpf_prog_run32+0x39/0x59 [362108.292770] ? _raw_spin_unlock+0x12/0x23 [362108.292771] core_sys_select+0x196/0x248 [362108.292774] ? __seccomp_filter+0x3e/0x1f2 [362108.292775] ? handle_mm_fault+0x176/0x1c7 [362108.292777] kern_select+0x97/0xcf [362108.292778] __x64_sys_select+0x20/0x23 [362108.292779] do_syscall_64+0x7e/0x133 [362108.292781] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292781] RIP: 0033:0x7f4cbcf53e9b [362108.292783] Code: Bad RIP value. [362108.292783] RSP: 002b:00007ffffa950a40 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [362108.292784] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4cbcf53e9b [362108.292785] RDX: 0000000000000000 RSI: 000055e3ad3b5530 RDI: 0000000000000008 [362108.292785] RBP: 000055e3abb31580 R08: 0000000000000000 R09: 0000000000000080 [362108.292786] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffffa950af8 [362108.292787] R13: 00007ffffa950ad0 R14: 0000000000000001 R15: 000055e3ad3b5530 [362108.292788] /usr/sbin/amavi S 0 2362 2359 0x00000100 [362108.292789] Call Trace: [362108.292791] ? __schedule+0x59d/0x5f1 [362108.292793] schedule+0x6a/0x85 [362108.292795] locks_lock_inode_wait+0xf6/0x124 [362108.292797] ? wait_woken+0x6d/0x6d [362108.292798] __se_sys_flock+0x10f/0x136 [362108.292799] do_syscall_64+0x7e/0x133 [362108.292800] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292801] RIP: 0033:0x7f4cbcf4cf67 [362108.292803] Code: Bad RIP value. [362108.292803] RSP: 002b:00007ffffa950b08 EFLAGS: 00000202 ORIG_RAX: 0000000000000049 [362108.292804] RAX: ffffffffffffffda RBX: 000055e3abb31570 RCX: 00007f4cbcf4cf67 [362108.292805] RDX: 000055e3a803c8e0 RSI: 0000000000000002 RDI: 0000000000000007 [362108.292806] RBP: 000055e3a900e748 R08: 0000000000000000 R09: 000055e3ad505e30 [362108.292806] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f4cbd615b60 [362108.292807] R13: 00007f4cbd614f78 R14: 000055e3abb31568 R15: 0000000000000002 [362108.292808] apache2 S 0 2371 2251 0x00000100 [362108.292810] Call Trace: [362108.292811] ? __schedule+0x59d/0x5f1 [362108.292813] ? __radix_tree_lookup+0x6a/0xa3 [362108.292814] schedule+0x6a/0x85 [362108.292816] do_semtimedop+0x7d0/0x975 [362108.292818] ? inet_recvmsg+0xb6/0xe5 [362108.292820] ? seccomp_run_filters+0xf5/0x134 [362108.292822] ? __inode_wait_for_writeback+0x76/0xc9 [362108.292824] ? __seccomp_filter+0x3e/0x1f2 [362108.292825] ? __vfs_read+0x101/0x139 [362108.292827] ? syscall_trace_enter+0x16c/0x216 [362108.292828] do_syscall_64+0x7e/0x133 [362108.292829] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292830] RIP: 0033:0x7f9082fa171b [362108.292831] Code: Bad RIP value. [362108.292832] RSP: 002b:00007fff57fd1f90 EFLAGS: 00000246 ORIG_RAX: 0000000000000041 [362108.292833] RAX: ffffffffffffffda RBX: 0000559c133a9a98 RCX: 00007f9082fa171b [362108.292833] RDX: 0000000000000001 RSI: 00007f9083efed6c RDI: 0000000000010000 [362108.292834] RBP: 00007f9083efed6c R08: 0000559c135536d8 R09: 0000000000000000 [362108.292835] R10: 0000559c135544c8 R11: 0000000000000246 R12: 00007fff57fd2020 [362108.292835] R13: 0000559c13556180 R14: 0000559c132ec848 R15: 0000000000000000 [362108.292836] apache2 S 0 2724 2251 0x00000100 [362108.292837] Call Trace: [362108.292839] ? __schedule+0x59d/0x5f1 [362108.292841] ? __radix_tree_lookup+0x6a/0xa3 [362108.292842] schedule+0x6a/0x85 [362108.292844] do_semtimedop+0x7d0/0x975 [362108.292846] ? inet_recvmsg+0xb6/0xe5 [362108.292847] ? seccomp_run_filters+0xf5/0x134 [362108.292849] ? __inode_wait_for_writeback+0x76/0xc9 [362108.292851] ? __seccomp_filter+0x3e/0x1f2 [362108.292852] ? __vfs_read+0x101/0x139 [362108.292853] ? syscall_trace_enter+0x16c/0x216 [362108.292855] do_syscall_64+0x7e/0x133 [362108.292856] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292857] RIP: 0033:0x7f9082fa171b [362108.292858] Code: Bad RIP value. [362108.292859] RSP: 002b:00007fff57fd1f90 EFLAGS: 00000246 ORIG_RAX: 0000000000000041 [362108.292860] RAX: ffffffffffffffda RBX: 0000559c133a9a98 RCX: 00007f9082fa171b [362108.292860] RDX: 0000000000000001 RSI: 00007f9083efed6c RDI: 0000000000010000 [362108.292861] RBP: 00007f9083efed6c R08: 0000559c135536d8 R09: 0000000000000000 [362108.292861] R10: 0000559c135544c8 R11: 0000000000000246 R12: 00007fff57fd2020 [362108.292862] R13: 0000559c13556180 R14: 0000559c132ec848 R15: 0000000000000000 [362108.292864] apache2 S 0 2725 2251 0x00000100 [362108.292865] Call Trace: [362108.292867] ? __schedule+0x59d/0x5f1 [362108.292868] ? __radix_tree_lookup+0x6a/0xa3 [362108.292869] schedule+0x6a/0x85 [362108.292871] do_semtimedop+0x7d0/0x975 [362108.292873] ? inet_recvmsg+0xb6/0xe5 [362108.292874] ? seccomp_run_filters+0xf5/0x134 [362108.292876] ? __inode_wait_for_writeback+0x76/0xc9 [362108.292878] ? __seccomp_filter+0x3e/0x1f2 [362108.292879] ? __vfs_read+0x101/0x139 [362108.292881] ? syscall_trace_enter+0x16c/0x216 [362108.292882] do_syscall_64+0x7e/0x133 [362108.292883] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292884] RIP: 0033:0x7f9082fa171b [362108.292885] Code: Bad RIP value. [362108.292886] RSP: 002b:00007fff57fd1f90 EFLAGS: 00000246 ORIG_RAX: 0000000000000041 [362108.292887] RAX: ffffffffffffffda RBX: 0000559c133a9a98 RCX: 00007f9082fa171b [362108.292887] RDX: 0000000000000001 RSI: 00007f9083efed6c RDI: 0000000000010000 [362108.292888] RBP: 00007f9083efed6c R08: 0000559c135536d8 R09: 0000000000000000 [362108.292888] R10: 0000559c135544c8 R11: 0000000000000246 R12: 00007fff57fd2020 [362108.292889] R13: 0000559c13556180 R14: 0000559c132ec848 R15: 0000000000000000 [362108.292890] apache2 S 0 2726 2251 0x00000100 [362108.292891] Call Trace: [362108.292894] ? __schedule+0x59d/0x5f1 [362108.292895] ? __radix_tree_lookup+0x6a/0xa3 [362108.292896] schedule+0x6a/0x85 [362108.292898] do_semtimedop+0x7d0/0x975 [362108.292900] ? inet_recvmsg+0xb6/0xe5 [362108.292902] ? seccomp_run_filters+0xf5/0x134 [362108.292903] ? __inode_wait_for_writeback+0x76/0xc9 [362108.292905] ? __seccomp_filter+0x3e/0x1f2 [362108.292906] ? __vfs_read+0x101/0x139 [362108.292908] ? syscall_trace_enter+0x16c/0x216 [362108.292909] do_syscall_64+0x7e/0x133 [362108.292910] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.292911] RIP: 0033:0x7f9082fa171b [362108.292912] Code: Bad RIP value. [362108.292913] RSP: 002b:00007fff57fd1f90 EFLAGS: 00000246 ORIG_RAX: 0000000000000041 [362108.292914] RAX: ffffffffffffffda RBX: 0000559c133a9a98 RCX: 00007f9082fa171b [362108.292914] RDX: 0000000000000001 RSI: 00007f9083efed6c RDI: 0000000000010000 [362108.292915] RBP: 00007f9083efed6c R08: 0000559c135536d8 R09: 0000000000000000 [362108.292916] R10: 0000559c135544c8 R11: 0000000000000246 R12: 00007fff57fd2020 [362108.292917] R13: 0000559c13556180 R14: 0000559c132ec848 R15: 0000000000000000 [362108.292918] kworker/7:2 I 0 1161 2 0x80000000 [362108.292921] Workqueue: (null) (events_freezable_power_) [362108.292922] Call Trace: [362108.292924] ? __schedule+0x59d/0x5f1 [362108.292926] ? cancel_delayed_work_sync+0xf/0xf [362108.292927] schedule+0x6a/0x85 [362108.292929] worker_thread+0x24e/0x297 [362108.292930] kthread+0x115/0x11d [362108.292932] ? kthread_park+0x76/0x76 [362108.292933] ret_from_fork+0x35/0x40 [362108.292935] kworker/6:1 I 0 3373 2 0x80000000 [362108.292938] Workqueue: (null) (mm_percpu_wq) [362108.292939] Call Trace: [362108.292940] ? __schedule+0x59d/0x5f1 [362108.292941] ? cancel_delayed_work_sync+0xf/0xf [362108.292942] schedule+0x6a/0x85 [362108.292944] worker_thread+0x24e/0x297 [362108.292945] kthread+0x115/0x11d [362108.292947] ? kthread_park+0x76/0x76 [362108.292948] ret_from_fork+0x35/0x40 [362108.292949] kworker/1:2 I 0 832 2 0x80000000 [362108.292952] Workqueue: (null) (mm_percpu_wq) [362108.292953] Call Trace: [362108.292955] ? __schedule+0x59d/0x5f1 [362108.292956] ? cancel_delayed_work_sync+0xf/0xf [362108.292957] schedule+0x6a/0x85 [362108.292958] worker_thread+0x24e/0x297 [362108.292960] kthread+0x115/0x11d [362108.292961] ? kthread_park+0x76/0x76 [362108.292962] ret_from_fork+0x35/0x40 [362108.292964] kworker/0:2 I 0 3008 2 0x80000000 [362108.292967] Workqueue: (null) (events_power_efficient) [362108.292968] Call Trace: [362108.292970] ? __schedule+0x59d/0x5f1 [362108.292971] ? cancel_delayed_work_sync+0xf/0xf [362108.292972] schedule+0x6a/0x85 [362108.292973] worker_thread+0x24e/0x297 [362108.292975] kthread+0x115/0x11d [362108.292976] ? kthread_park+0x76/0x76 [362108.292977] ret_from_fork+0x35/0x40 [362108.292979] kworker/6:2 I 0 7996 2 0x80000000 [362108.292982] Workqueue: (null) (cgroup_destroy) [362108.292983] Call Trace: [362108.292985] ? __schedule+0x59d/0x5f1 [362108.292986] ? cancel_delayed_work_sync+0xf/0xf [362108.292988] schedule+0x6a/0x85 [362108.292989] worker_thread+0x24e/0x297 [362108.292990] kthread+0x115/0x11d [362108.292992] ? kthread_park+0x76/0x76 [362108.292993] ret_from_fork+0x35/0x40 [362108.292995] kworker/u17:0 I 0 9115 2 0x80000000 [362108.292998] Workqueue: (null) (btrfs-worker-high) [362108.292999] Call Trace: [362108.293001] ? __schedule+0x59d/0x5f1 [362108.293002] ? cancel_delayed_work_sync+0xf/0xf [362108.293004] schedule+0x6a/0x85 [362108.293005] worker_thread+0x24e/0x297 [362108.293006] kthread+0x115/0x11d [362108.293008] ? kthread_park+0x76/0x76 [362108.293009] ret_from_fork+0x35/0x40 [362108.293010] kworker/4:2 I 0 12354 2 0x80000000 [362108.293013] Workqueue: (null) (events_freezable_power_) [362108.293015] Call Trace: [362108.293016] ? __schedule+0x59d/0x5f1 [362108.293017] ? cancel_delayed_work_sync+0xf/0xf [362108.293019] schedule+0x6a/0x85 [362108.293020] worker_thread+0x24e/0x297 [362108.293022] kthread+0x115/0x11d [362108.293023] ? kthread_park+0x76/0x76 [362108.293024] ret_from_fork+0x35/0x40 [362108.293026] kworker/3:2 I 0 13247 2 0x80000000 [362108.293029] Workqueue: (null) (events_freezable_power_) [362108.293029] Call Trace: [362108.293031] ? __schedule+0x59d/0x5f1 [362108.293032] ? cancel_delayed_work_sync+0xf/0xf [362108.293034] schedule+0x6a/0x85 [362108.293035] worker_thread+0x24e/0x297 [362108.293036] kthread+0x115/0x11d [362108.293038] ? kthread_park+0x76/0x76 [362108.293039] ret_from_fork+0x35/0x40 [362108.293041] kworker/1:0 I 0 16200 2 0x80000000 [362108.293044] Workqueue: (null) (cgroup_destroy) [362108.293045] Call Trace: [362108.293047] ? __schedule+0x59d/0x5f1 [362108.293048] ? cancel_delayed_work_sync+0xf/0xf [362108.293049] schedule+0x6a/0x85 [362108.293050] worker_thread+0x24e/0x297 [362108.293052] kthread+0x115/0x11d [362108.293053] ? kthread_park+0x76/0x76 [362108.293054] ret_from_fork+0x35/0x40 [362108.293056] systemd-helper S 0 18170 1 0x00000000 [362108.293058] Call Trace: [362108.293059] ? __schedule+0x59d/0x5f1 [362108.293061] schedule+0x6a/0x85 [362108.293062] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293063] ? preempt_count_add+0x8a/0x9c [362108.293064] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.293066] ? add_wait_queue+0x15/0x3e [362108.293066] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293068] ? unix_poll+0x87/0x96 [362108.293070] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.293071] do_sys_poll+0x383/0x42b [362108.293073] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293074] ? ep_poll_callback+0x188/0x1fd [362108.293077] ? __wake_up_common+0xaa/0x126 [362108.293078] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293079] ? __wake_up_common_lock+0x8b/0xd0 [362108.293081] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293083] ? ___sys_sendmsg+0x206/0x230 [362108.293085] ? mem_cgroup_commit_charge+0xaa/0x10d [362108.293086] ? __lru_cache_add+0x74/0x87 [362108.293088] ? _raw_spin_unlock+0x12/0x23 [362108.293088] ? __handle_mm_fault+0x955/0xeb4 [362108.293090] ? __sys_sendmsg+0x5e/0x94 [362108.293092] __se_sys_poll+0x5a/0xd6 [362108.293094] do_syscall_64+0x7e/0x133 [362108.293095] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293095] RIP: 0033:0x7f9f90195058 [362108.293097] Code: Bad RIP value. [362108.293097] RSP: 002b:00007ffe1d98fa40 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [362108.293099] RAX: ffffffffffffffda RBX: 0000564ba5378420 RCX: 00007f9f90195058 [362108.293099] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 00007ffe1d98fa90 [362108.293100] RBP: 0000000000000006 R08: 0000000000000000 R09: 00007ffe1d9bd080 [362108.293100] R10: 0000000011f5d60a R11: 0000000000000246 R12: 0000000000000006 [362108.293101] R13: 0000000000000004 R14: 00000000ffffffff R15: 00007ffe1d98fa90 [362108.293103] snapperd S 0 18174 1 0x00000000 [362108.293104] Call Trace: [362108.293106] ? __schedule+0x59d/0x5f1 [362108.293107] schedule+0x6a/0x85 [362108.293109] futex_wait_queue_me+0xc1/0x106 [362108.293110] futex_wait+0xdb/0x1ea [362108.293111] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293112] ? try_to_wake_up+0x34f/0x375 [362108.293113] ? get_futex_key+0x94/0x2c2 [362108.293115] do_futex+0xdb/0x904 [362108.293117] __se_sys_futex+0x13e/0x163 [362108.293119] do_syscall_64+0x7e/0x133 [362108.293120] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293121] RIP: 0033:0x7ff6797acd7c [362108.293123] Code: Bad RIP value. [362108.293123] RSP: 002b:00007ffc9c00b700 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [362108.293124] RAX: ffffffffffffffda RBX: 000055ff308f7bd0 RCX: 00007ff6797acd7c [362108.293125] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000055ff308f7bf8 [362108.293125] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055ff321deb00 [362108.293126] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [362108.293127] R13: 000055ff308f7ba8 R14: 0000000000000000 R15: 000055ff308f7bf8 [362108.293128] snapperd D 0 18178 1 0x00000000 [362108.293129] Call Trace: [362108.293131] ? __schedule+0x59d/0x5f1 [362108.293133] ? terminate_walk+0x20/0x7e [362108.293134] schedule+0x6a/0x85 [362108.293136] btrfs_tree_read_lock+0xbb/0xf1 [362108.293138] ? wait_woken+0x6d/0x6d [362108.293140] btrfs_read_lock_root_node+0x1d/0x3b [362108.293141] btrfs_search_slot+0x181/0x812 [362108.293142] ? cp_new_stat+0x150/0x17f [362108.293144] btrfs_listxattr+0x9b/0x25b [362108.293147] ? __se_sys_newfstat+0x41/0x64 [362108.293148] listxattr+0x5d/0xb4 [362108.293149] __se_sys_flistxattr+0x3e/0x5a [362108.293151] do_syscall_64+0x7e/0x133 [362108.293152] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293152] RIP: 0033:0x7ff678598fe7 [362108.293154] Code: Bad RIP value. [362108.293154] RSP: 002b:00007ff675f3db98 EFLAGS: 00000202 ORIG_RAX: 00000000000000c4 [362108.293155] RAX: ffffffffffffffda RBX: 00007ff675f3e2c8 RCX: 00007ff678598fe7 [362108.293156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [362108.293156] RBP: 00007ff675f3dfc8 R08: 0000000000000000 R09: 0000000000000400 [362108.293157] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ff675f3e2c8 [362108.293158] R13: 00007ff670007d28 R14: 00007ff670007d30 R15: 00007ff67000bdb0 [362108.293159] kworker/2:2 I 0 20398 2 0x80000000 [362108.293166] Workqueue: (null) (events_freezable_power_) [362108.293167] Call Trace: [362108.293169] ? __schedule+0x59d/0x5f1 [362108.293171] ? cancel_delayed_work_sync+0xf/0xf [362108.293172] schedule+0x6a/0x85 [362108.293173] worker_thread+0x24e/0x297 [362108.293174] kthread+0x115/0x11d [362108.293176] ? kthread_park+0x76/0x76 [362108.293177] ret_from_fork+0x35/0x40 [362108.293179] kworker/u17:1 I 0 20546 2 0x80000000 [362108.293182] Workqueue: (null) (btrfs-worker-high) [362108.293183] Call Trace: [362108.293185] ? __schedule+0x59d/0x5f1 [362108.293187] ? cancel_delayed_work_sync+0xf/0xf [362108.293188] schedule+0x6a/0x85 [362108.293189] worker_thread+0x24e/0x297 [362108.293190] kthread+0x115/0x11d [362108.293192] ? kthread_park+0x76/0x76 [362108.293193] ret_from_fork+0x35/0x40 [362108.293195] kworker/u16:0 I 0 20920 2 0x80000000 [362108.293198] Workqueue: (null) (bond1) [362108.293199] Call Trace: [362108.293200] ? __schedule+0x59d/0x5f1 [362108.293202] ? cancel_delayed_work_sync+0xf/0xf [362108.293203] schedule+0x6a/0x85 [362108.293204] worker_thread+0x24e/0x297 [362108.293205] kthread+0x115/0x11d [362108.293207] ? kthread_park+0x76/0x76 [362108.293208] ret_from_fork+0x35/0x40 [362108.293209] kworker/u16:2 I 0 20995 2 0x80000000 [362108.293212] Workqueue: (null) (events_unbound) [362108.293213] Call Trace: [362108.293214] ? __schedule+0x59d/0x5f1 [362108.293216] ? cancel_delayed_work_sync+0xf/0xf [362108.293217] schedule+0x6a/0x85 [362108.293218] worker_thread+0x24e/0x297 [362108.293220] kthread+0x115/0x11d [362108.293221] ? kthread_park+0x76/0x76 [362108.293222] ret_from_fork+0x35/0x40 [362108.293224] sshd S 0 20997 2260 0x00000000 [362108.293225] Call Trace: [362108.293227] ? __schedule+0x59d/0x5f1 [362108.293229] schedule+0x6a/0x85 [362108.293230] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293231] ? preempt_count_add+0x8a/0x9c [362108.293232] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.293233] ? add_wait_queue+0x15/0x3e [362108.293235] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293236] ? unix_poll+0x87/0x96 [362108.293237] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.293238] do_sys_poll+0x383/0x42b [362108.293241] ? __kmalloc_reserve.isra.7+0x2d/0x6f [362108.293242] ? __alloc_skb+0xb3/0x192 [362108.293244] ? __follow_mount_rcu+0x5b/0xc5 [362108.293245] ? lookup_fast+0xff/0x297 [362108.293247] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293248] ? cdev_put+0x1e/0x1e [362108.293249] ? dput.part.4+0x29/0xfd [362108.293251] ? mntput_no_expire+0x11/0x185 [362108.293253] ? terminate_walk+0x20/0x7e [362108.293254] ? path_openat+0xb78/0xc1b [362108.293255] ? do_filp_open+0x88/0xae [362108.293256] ? sock_write_iter+0x83/0xae [362108.293258] ? preempt_count_add+0x7d/0x9c [362108.293259] ? __fd_install+0xa5/0xbe [362108.293260] __se_sys_poll+0x5a/0xd6 [362108.293262] ? filp_close+0x62/0x69 [362108.293263] do_syscall_64+0x7e/0x133 [362108.293264] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293265] RIP: 0033:0x7efddf36b058 [362108.293266] Code: Bad RIP value. [362108.293267] RSP: 002b:00007ffe28b572f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [362108.293268] RAX: ffffffffffffffda RBX: 00005642588e01a0 RCX: 00007efddf36b058 [362108.293269] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 00007ffe28b57338 [362108.293270] RBP: 00007ffe28b57338 R08: 00005642590868b0 R09: 0000564259086870 [362108.293270] R10: 0000000000000000 R11: 0000000000000246 R12: 0000564259079880 [362108.293271] R13: 0000000000000000 R14: 0000000000005207 R15: 0000000000000014 [362108.293272] kworker/u16:5 I 0 20998 2 0x80000000 [362108.293275] Workqueue: (null) (btrfs-endio-write) [362108.293276] Call Trace: [362108.293278] ? __schedule+0x59d/0x5f1 [362108.293279] ? cancel_delayed_work_sync+0xf/0xf [362108.293280] schedule+0x6a/0x85 [362108.293281] worker_thread+0x24e/0x297 [362108.293283] kthread+0x115/0x11d [362108.293285] ? kthread_park+0x76/0x76 [362108.293286] ret_from_fork+0x35/0x40 [362108.293287] systemd S 0 21001 1 0x00000000 [362108.293289] Call Trace: [362108.293290] ? __schedule+0x59d/0x5f1 [362108.293292] schedule+0x6a/0x85 [362108.293293] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293294] ? _raw_spin_lock_irq+0x14/0x30 [362108.293295] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293296] ? ep_scan_ready_list.constprop.3+0x187/0x1bb [362108.293298] ep_poll+0x21b/0x31f [362108.293300] ? wake_up_q+0x4d/0x4d [362108.293302] do_epoll_wait+0x92/0xb2 [362108.293303] __x64_sys_epoll_wait+0x1a/0x1d [362108.293304] do_syscall_64+0x7e/0x133 [362108.293306] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293306] RIP: 0033:0x7f7439e817ab [362108.293308] Code: Bad RIP value. [362108.293308] RSP: 002b:00007ffc3b1119f0 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [362108.293309] RAX: ffffffffffffffda RBX: 00005569bced2490 RCX: 00007f7439e817ab [362108.293310] RDX: 0000000000000010 RSI: 00007ffc3b111a40 RDI: 0000000000000004 [362108.293311] RBP: 00007ffc3b111bf0 R08: 0000000000000010 R09: 00007ffc3b119080 [362108.293311] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc3b111a40 [362108.293312] R13: 0000000000000001 R14: ffffffffffffffff R15: 0000000000000000 [362108.293313] (sd-pam) S 0 21002 21001 0x00000000 [362108.293314] Call Trace: [362108.293317] ? __schedule+0x59d/0x5f1 [362108.293318] schedule+0x6a/0x85 [362108.293319] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293320] ? __handle_mm_fault+0xbc3/0xeb4 [362108.293324] ? recalc_sigpending+0x17/0x42 [362108.293325] ? dequeue_signal+0x177/0x19d [362108.293327] do_sigtimedwait.isra.7+0x13e/0x1f5 [362108.293329] __se_sys_rt_sigtimedwait+0x84/0xcb [362108.293331] ? __do_page_fault+0x36d/0x3ff [362108.293332] do_syscall_64+0x7e/0x133 [362108.293334] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293335] RIP: 0033:0x7fa707a9f72b [362108.293336] Code: Bad RIP value. [362108.293337] RSP: 002b:00007ffc1ffe6820 EFLAGS: 00000246 ORIG_RAX: 0000000000000080 [362108.293337] RAX: ffffffffffffffda RBX: 00007ffc1ffe6801 RCX: 00007fa707a9f72b [362108.293338] RDX: 0000000000000000 RSI: 00007ffc1ffe6860 RDI: 00007ffc1ffe69f8 [362108.293339] RBP: 00007ffc1ffe6860 R08: 0000000000000000 R09: 0000562ff7984700 [362108.293340] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ffc1ffe6958 [362108.293340] R13: 0000000000005209 R14: 00007ffc1ffe6958 R15: 0000000000008000 [362108.293342] kworker/5:2 I 0 21006 2 0x80000000 [362108.293345] Workqueue: (null) (cgroup_destroy) [362108.293346] Call Trace: [362108.293347] ? __schedule+0x59d/0x5f1 [362108.293349] ? cancel_delayed_work_sync+0xf/0xf [362108.293350] schedule+0x6a/0x85 [362108.293351] worker_thread+0x24e/0x297 [362108.293353] kthread+0x115/0x11d [362108.293354] ? kthread_park+0x76/0x76 [362108.293355] ret_from_fork+0x35/0x40 [362108.293357] sshd S 0 21007 20997 0x00000000 [362108.293358] Call Trace: [362108.293360] ? __schedule+0x59d/0x5f1 [362108.293361] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293362] schedule+0x6a/0x85 [362108.293363] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293364] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.293367] ? pty_stop+0x70/0x70 [362108.293368] ? n_tty_poll+0x17c/0x18d [362108.293370] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.293371] do_select+0x5f1/0x643 [362108.293374] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293375] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293377] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293378] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293379] ? preempt_count_add+0x8a/0x9c [362108.293381] ? get_nohz_timer_target+0x1b/0xea [362108.293382] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293383] ? mod_timer+0x287/0x2af [362108.293384] ? sk_reset_timer+0x14/0x27 [362108.293386] ? tcp_schedule_loss_probe+0x102/0x10a [362108.293388] ? tcp_write_xmit+0x9be/0xcd8 [362108.293390] ? _copy_from_iter_full+0x1dc/0x1ed [362108.293391] ? __tcp_push_pending_frames+0x30/0x95 [362108.293392] core_sys_select+0x196/0x248 [362108.293395] ? sock_write_iter+0x83/0xae [362108.293397] kern_select+0x97/0xcf [362108.293398] ? _copy_to_user+0x22/0x28 [362108.293400] ? put_timespec64+0x3c/0x61 [362108.293401] __x64_sys_select+0x20/0x23 [362108.293402] do_syscall_64+0x7e/0x133 [362108.293404] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293404] RIP: 0033:0x7efddf36de9b [362108.293406] Code: Bad RIP value. [362108.293407] RSP: 002b:00007ffe28b57260 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [362108.293408] RAX: ffffffffffffffda RBX: 000056425907b4d0 RCX: 00007efddf36de9b [362108.293408] RDX: 00005642590797b0 RSI: 0000564259074e00 RDI: 000000000000000d [362108.293409] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe28bb1080 [362108.293409] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [362108.293410] R13: 0000000000000003 R14: 0000000000000003 R15: 00005642588e0a20 [362108.293412] bash S 0 21008 21007 0x00000000 [362108.293413] Call Trace: [362108.293415] ? __schedule+0x59d/0x5f1 [362108.293416] ? __tty_check_change+0xdd/0x118 [362108.293418] ? __radix_tree_lookup+0x6a/0xa3 [362108.293419] schedule+0x6a/0x85 [362108.293420] do_wait+0x1d5/0x237 [362108.293422] kernel_wait4+0xbe/0x111 [362108.293424] ? task_stopped_code+0x3a/0x3a [362108.293425] __se_sys_wait4+0x3c/0x8b [362108.293427] ? __do_page_fault+0x36d/0x3ff [362108.293427] ? preempt_count_add+0x8a/0x9c [362108.293429] ? recalc_sigpending+0x17/0x42 [362108.293430] ? __set_current_blocked+0x3d/0x55 [362108.293431] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293432] ? sigprocmask+0x6e/0x8a [362108.293433] ? _copy_to_user+0x22/0x28 [362108.293434] ? __se_sys_rt_sigprocmask+0x93/0xbb [362108.293435] do_syscall_64+0x7e/0x133 [362108.293436] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293437] RIP: 0033:0x7f86d8cba21b [362108.293439] Code: Bad RIP value. [362108.293439] RSP: 002b:00007fff7ec6caf0 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [362108.293441] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f86d8cba21b [362108.293441] RDX: 000000000000000a RSI: 00007fff7ec6cb30 RDI: 00000000ffffffff [362108.293442] RBP: 000000000000000a R08: 0000000000000000 R09: 00005651dfba3280 [362108.293442] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [362108.293443] R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000001 [362108.293445] su S 0 21065 21008 0x00000000 [362108.293446] Call Trace: [362108.293448] ? __schedule+0x59d/0x5f1 [362108.293449] schedule+0x6a/0x85 [362108.293450] do_wait+0x1d5/0x237 [362108.293452] kernel_wait4+0xbe/0x111 [362108.293453] ? task_stopped_code+0x3a/0x3a [362108.293454] __se_sys_wait4+0x3c/0x8b [362108.293455] ? _raw_spin_lock_irq+0x14/0x30 [362108.293456] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293457] ? do_sigaction+0xb6/0x18c [362108.293458] ? preempt_count_add+0x8a/0x9c [362108.293460] ? recalc_sigpending+0x17/0x42 [362108.293461] ? __set_current_blocked+0x3d/0x55 [362108.293462] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293462] ? sigprocmask+0x6e/0x8a [362108.293464] ? __se_sys_rt_sigprocmask+0x72/0xbb [362108.293465] do_syscall_64+0x7e/0x133 [362108.293466] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293467] RIP: 0033:0x7f09e1fd721b [362108.293468] Code: Bad RIP value. [362108.293468] RSP: 002b:00007ffdfa21c640 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [362108.293469] RAX: ffffffffffffffda RBX: 00007ffdfa21c690 RCX: 00007f09e1fd721b [362108.293470] RDX: 0000000000000002 RSI: 00007ffdfa21c68c RDI: 00000000ffffffff [362108.293471] RBP: 00007ffdfa21c68c R08: 0000000000000000 R09: 00007f09e28f4b80 [362108.293471] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfa21c908 [362108.293472] R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000000 [362108.293473] bash S 0 21066 21065 0x00000000 [362108.293474] Call Trace: [362108.293477] ? __schedule+0x59d/0x5f1 [362108.293478] ? preempt_count_add+0x8a/0x9c [362108.293479] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.293480] schedule+0x6a/0x85 [362108.293481] do_wait+0x1d5/0x237 [362108.293482] kernel_wait4+0xbe/0x111 [362108.293484] ? task_stopped_code+0x3a/0x3a [362108.293485] __se_sys_wait4+0x3c/0x8b [362108.293486] ? __do_page_fault+0x36d/0x3ff [362108.293487] ? preempt_count_add+0x8a/0x9c [362108.293488] ? recalc_sigpending+0x17/0x42 [362108.293489] ? __set_current_blocked+0x3d/0x55 [362108.293490] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293491] ? sigprocmask+0x6e/0x8a [362108.293492] ? _copy_to_user+0x22/0x28 [362108.293494] ? __se_sys_rt_sigprocmask+0x93/0xbb [362108.293495] do_syscall_64+0x7e/0x133 [362108.293496] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293496] RIP: 0033:0x7f7e4cb5821b [362108.293498] Code: Bad RIP value. [362108.293499] RSP: 002b:00007ffc82f3aec0 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [362108.293500] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7e4cb5821b [362108.293500] RDX: 000000000000000a RSI: 00007ffc82f3af00 RDI: 00000000ffffffff [362108.293501] RBP: 000000000000000a R08: 0000000000000000 R09: 0000558b380e7230 [362108.293501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [362108.293502] R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000000 [362108.293503] ls D 0 21079 21066 0x00000000 [362108.293504] Call Trace: [362108.293506] ? __schedule+0x59d/0x5f1 [362108.293508] schedule+0x6a/0x85 [362108.293510] rwsem_down_read_failed_killable+0x17c/0x1d9 [362108.293511] ? _raw_spin_unlock+0x12/0x23 [362108.293513] call_rwsem_down_read_failed_killable+0x14/0x30 [362108.293515] down_read_killable+0x13/0x36 [362108.293516] iterate_dir+0x59/0x131 [362108.293518] ksys_getdents64+0x8f/0x104 [362108.293520] ? filldir+0xef/0xef [362108.293521] __x64_sys_getdents64+0x16/0x19 [362108.293522] do_syscall_64+0x7e/0x133 [362108.293523] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293524] RIP: 0033:0x7f4d00d1dadb [362108.293525] Code: Bad RIP value. [362108.293526] RSP: 002b:00007ffc7a066140 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 [362108.293527] RAX: ffffffffffffffda RBX: 000055766371c130 RCX: 00007f4d00d1dadb [362108.293528] RDX: 0000000000008000 RSI: 000055766371c160 RDI: 0000000000000003 [362108.293528] RBP: 000055766371c160 R08: 0000000000000003 R09: 0000557663714010 [362108.293529] R10: ffffffffffffff6d R11: 0000000000000246 R12: ffffffffffffff80 [362108.293530] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [362108.293531] kworker/3:1 I 0 21087 2 0x80000000 [362108.293534] Workqueue: (null) (events) [362108.293535] Call Trace: [362108.293537] ? __schedule+0x59d/0x5f1 [362108.293538] ? cancel_delayed_work_sync+0xf/0xf [362108.293539] schedule+0x6a/0x85 [362108.293540] worker_thread+0x24e/0x297 [362108.293542] kthread+0x115/0x11d [362108.293544] ? kthread_park+0x76/0x76 [362108.293545] ret_from_fork+0x35/0x40 [362108.293546] kworker/2:1 I 0 21156 2 0x80000000 [362108.293549] Workqueue: (null) (mm_percpu_wq) [362108.293550] Call Trace: [362108.293552] ? __schedule+0x59d/0x5f1 [362108.293553] ? cancel_delayed_work_sync+0xf/0xf [362108.293554] schedule+0x6a/0x85 [362108.293555] worker_thread+0x24e/0x297 [362108.293557] kthread+0x115/0x11d [362108.293558] ? kthread_park+0x76/0x76 [362108.293559] ret_from_fork+0x35/0x40 [362108.293561] kworker/4:0 I 0 21230 2 0x80000000 [362108.293564] Workqueue: (null) (mm_percpu_wq) [362108.293565] Call Trace: [362108.293567] ? __schedule+0x59d/0x5f1 [362108.293568] ? cancel_delayed_work_sync+0xf/0xf [362108.293569] schedule+0x6a/0x85 [362108.293570] worker_thread+0x24e/0x297 [362108.293572] kthread+0x115/0x11d [362108.293573] ? kthread_park+0x76/0x76 [362108.293574] ret_from_fork+0x35/0x40 [362108.293576] kworker/0:0 I 0 21237 2 0x80000000 [362108.293579] Workqueue: (null) (events_power_efficient) [362108.293580] Call Trace: [362108.293582] ? __schedule+0x59d/0x5f1 [362108.293583] ? cancel_delayed_work_sync+0xf/0xf [362108.293584] schedule+0x6a/0x85 [362108.293586] worker_thread+0x24e/0x297 [362108.293588] kthread+0x115/0x11d [362108.293589] ? kthread_park+0x76/0x76 [362108.293590] ret_from_fork+0x35/0x40 [362108.293592] kworker/2:0 I 0 21346 2 0x80000000 [362108.293595] Workqueue: (null) (mm_percpu_wq) [362108.293596] Call Trace: [362108.293597] ? __schedule+0x59d/0x5f1 [362108.293599] ? cancel_delayed_work_sync+0xf/0xf [362108.293600] schedule+0x6a/0x85 [362108.293601] worker_thread+0x24e/0x297 [362108.293603] kthread+0x115/0x11d [362108.293604] ? kthread_park+0x76/0x76 [362108.293605] ret_from_fork+0x35/0x40 [362108.293607] kworker/3:0 I 0 21347 2 0x80000000 [362108.293610] Workqueue: (null) (mm_percpu_wq) [362108.293611] Call Trace: [362108.293612] ? __schedule+0x59d/0x5f1 [362108.293613] ? cancel_delayed_work_sync+0xf/0xf [362108.293615] schedule+0x6a/0x85 [362108.293616] worker_thread+0x24e/0x297 [362108.293618] kthread+0x115/0x11d [362108.293619] ? kthread_park+0x76/0x76 [362108.293620] ret_from_fork+0x35/0x40 [362108.293622] kworker/u17:2 I 0 21361 2 0x80000000 [362108.293625] Workqueue: (null) (btrfs-worker-high) [362108.293626] Call Trace: [362108.293628] ? __schedule+0x59d/0x5f1 [362108.293629] ? cancel_delayed_work_sync+0xf/0xf [362108.293630] schedule+0x6a/0x85 [362108.293631] worker_thread+0x24e/0x297 [362108.293633] kthread+0x115/0x11d [362108.293635] ? kthread_park+0x76/0x76 [362108.293636] ret_from_fork+0x35/0x40 [362108.293638] sshd S 0 21421 2260 0x00000000 [362108.293639] Call Trace: [362108.293641] ? __schedule+0x59d/0x5f1 [362108.293642] schedule+0x6a/0x85 [362108.293643] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293645] ? preempt_count_add+0x8a/0x9c [362108.293645] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.293647] ? add_wait_queue+0x15/0x3e [362108.293648] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293649] ? unix_poll+0x87/0x96 [362108.293650] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.293652] do_sys_poll+0x383/0x42b [362108.293654] ? __kmalloc_reserve.isra.7+0x2d/0x6f [362108.293655] ? __alloc_skb+0xb3/0x192 [362108.293657] ? __follow_mount_rcu+0x5b/0xc5 [362108.293659] ? lookup_fast+0xff/0x297 [362108.293660] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293661] ? cdev_put+0x1e/0x1e [362108.293663] ? dput.part.4+0x29/0xfd [362108.293664] ? mntput_no_expire+0x11/0x185 [362108.293665] ? terminate_walk+0x20/0x7e [362108.293666] ? path_openat+0xb78/0xc1b [362108.293668] ? do_filp_open+0x88/0xae [362108.293669] ? sock_write_iter+0x83/0xae [362108.293671] ? preempt_count_add+0x7d/0x9c [362108.293672] ? __fd_install+0xa5/0xbe [362108.293673] __se_sys_poll+0x5a/0xd6 [362108.293674] ? filp_close+0x62/0x69 [362108.293676] do_syscall_64+0x7e/0x133 [362108.293677] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293678] RIP: 0033:0x7f4bff3cf058 [362108.293680] Code: Bad RIP value. [362108.293680] RSP: 002b:00007fff1cb24cb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [362108.293681] RAX: ffffffffffffffda RBX: 00005575e56bc1a0 RCX: 00007f4bff3cf058 [362108.293682] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 00007fff1cb24cf8 [362108.293682] RBP: 00007fff1cb24cf8 R08: 00005575e7659900 R09: 00005575e76598c0 [362108.293683] R10: 0000000000000000 R11: 0000000000000246 R12: 00005575e764f620 [362108.293683] R13: 0000000000000000 R14: 00000000000053ae R15: 0000000000000014 [362108.293685] sshd S 0 21423 21421 0x00000000 [362108.293686] Call Trace: [362108.293688] ? __schedule+0x59d/0x5f1 [362108.293689] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293690] schedule+0x6a/0x85 [362108.293691] schedule_hrtimeout_range_clock+0x48/0xf4 [362108.293692] ? _raw_spin_lock_irqsave+0x17/0x36 [362108.293694] ? pty_stop+0x70/0x70 [362108.293695] ? n_tty_poll+0x17c/0x18d [362108.293696] poll_schedule_timeout.constprop.3+0x43/0x5c [362108.293697] do_select+0x5f1/0x643 [362108.293700] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293701] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293702] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293704] ? compat_poll_select_copy_remaining+0x11d/0x11d [362108.293705] ? preempt_count_add+0x8a/0x9c [362108.293706] ? get_nohz_timer_target+0x1b/0xea [362108.293708] ? internal_add_timer+0x27/0x34 [362108.293708] ? _raw_spin_unlock_irqrestore+0x14/0x25 [362108.293709] ? mod_timer+0x287/0x2af [362108.293711] ? sk_reset_timer+0x14/0x27 [362108.293712] ? tcp_schedule_loss_probe+0x102/0x10a [362108.293713] ? tcp_write_xmit+0x9be/0xcd8 [362108.293714] ? _copy_from_iter_full+0x1dc/0x1ed [362108.293715] ? __tcp_push_pending_frames+0x30/0x95 [362108.293717] core_sys_select+0x196/0x248 [362108.293718] ? sock_write_iter+0x83/0xae [362108.293720] kern_select+0x97/0xcf [362108.293722] ? _copy_to_user+0x22/0x28 [362108.293724] ? put_timespec64+0x3c/0x61 [362108.293725] __x64_sys_select+0x20/0x23 [362108.293726] do_syscall_64+0x7e/0x133 [362108.293727] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293728] RIP: 0033:0x7f4bff3d1e9b [362108.293730] Code: Bad RIP value. [362108.293730] RSP: 002b:00007fff1cb24c20 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [362108.293731] RAX: ffffffffffffffda RBX: 00005575e764e770 RCX: 00007f4bff3d1e9b [362108.293732] RDX: 00005575e764c9b0 RSI: 00005575e7648110 RDI: 000000000000000d [362108.293732] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff1cbc8080 [362108.293733] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [362108.293734] R13: 0000000000000003 R14: 0000000000000003 R15: 00005575e56bca20 [362108.293735] bash S 0 21424 21423 0x00000000 [362108.293736] Call Trace: [362108.293738] ? __schedule+0x59d/0x5f1 [362108.293739] ? __tty_check_change+0xdd/0x118 [362108.293741] ? __radix_tree_lookup+0x6a/0xa3 [362108.293742] schedule+0x6a/0x85 [362108.293743] do_wait+0x1d5/0x237 [362108.293744] kernel_wait4+0xbe/0x111 [362108.293746] ? task_stopped_code+0x3a/0x3a [362108.293747] __se_sys_wait4+0x3c/0x8b [362108.293748] ? __do_page_fault+0x36d/0x3ff [362108.293749] ? preempt_count_add+0x8a/0x9c [362108.293751] ? recalc_sigpending+0x17/0x42 [362108.293752] ? __set_current_blocked+0x3d/0x55 [362108.293753] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293753] ? sigprocmask+0x6e/0x8a [362108.293755] ? _copy_to_user+0x22/0x28 [362108.293756] ? __se_sys_rt_sigprocmask+0x93/0xbb [362108.293757] do_syscall_64+0x7e/0x133 [362108.293758] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293759] RIP: 0033:0x7f116010d21b [362108.293760] Code: Bad RIP value. [362108.293761] RSP: 002b:00007fff0dc8e940 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [362108.293762] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f116010d21b [362108.293762] RDX: 000000000000000a RSI: 00007fff0dc8e980 RDI: 00000000ffffffff [362108.293763] RBP: 000000000000000a R08: 0000000000000000 R09: 00005577f1e973f0 [362108.293764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [362108.293765] R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000000 [362108.293766] su S 0 21427 21424 0x00000000 [362108.293767] Call Trace: [362108.293769] ? __schedule+0x59d/0x5f1 [362108.293770] schedule+0x6a/0x85 [362108.293771] do_wait+0x1d5/0x237 [362108.293773] kernel_wait4+0xbe/0x111 [362108.293774] ? task_stopped_code+0x3a/0x3a [362108.293775] __se_sys_wait4+0x3c/0x8b [362108.293776] ? _raw_spin_lock_irq+0x14/0x30 [362108.293777] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293778] ? do_sigaction+0xb6/0x18c [362108.293779] ? preempt_count_add+0x8a/0x9c [362108.293780] ? recalc_sigpending+0x17/0x42 [362108.293782] ? __set_current_blocked+0x3d/0x55 [362108.293783] ? _raw_spin_unlock_irq+0x13/0x24 [362108.293783] ? sigprocmask+0x6e/0x8a [362108.293784] ? __se_sys_rt_sigprocmask+0x72/0xbb [362108.293785] do_syscall_64+0x7e/0x133 [362108.293786] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293787] RIP: 0033:0x7f9c3cd9721b [362108.293789] Code: Bad RIP value. [362108.293789] RSP: 002b:00007ffea71ad750 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [362108.293790] RAX: ffffffffffffffda RBX: 00007ffea71ad7a0 RCX: 00007f9c3cd9721b [362108.293791] RDX: 0000000000000002 RSI: 00007ffea71ad79c RDI: 00000000ffffffff [362108.293791] RBP: 00007ffea71ad79c R08: 0000000000000000 R09: 00007f9c3d6b4b80 [362108.293792] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffea71ada18 [362108.293793] R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000000 [362108.293794] bash R running task 0 21434 21427 0x80000000 [362108.293795] Call Trace: [362108.293797] sched_show_task+0xea/0x11c [362108.293799] show_state_filter+0x91/0xa5 [362108.293802] sysrq_handle_showstate+0xc/0x11 [362108.293804] __handle_sysrq+0x86/0x107 [362108.293806] write_sysrq_trigger+0x2b/0x30 [362108.293808] proc_reg_write+0x3e/0x5c [362108.293809] ? proc_reg_poll+0x55/0x55 [362108.293811] __vfs_write+0x33/0x141 [362108.293812] ? handle_mm_fault+0x176/0x1c7 [362108.293814] vfs_write+0xc8/0x16b [362108.293816] ksys_write+0x5d/0xab [362108.293817] do_syscall_64+0x7e/0x133 [362108.293819] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [362108.293819] RIP: 0033:0x7f6ba3c63a08 [362108.293820] Code: 00 90 48 83 ec 38 64 48 8b 04 25 28 00 00 00 48 89 44 24 28 31 c0 48 8d 05 d5 5c 2d 00 8b 00 85 c0 75 27 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 60 48 8b 4c 24 28 64 48 33 0c 25 28 00 00 00 [362108.293821] RSP: 002b:00007ffc3305df70 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [362108.293822] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f6ba3c63a08 [362108.293822] RDX: 0000000000000002 RSI: 0000563a722ce800 RDI: 0000000000000001 [362108.293823] RBP: 0000563a722ce800 R08: 000000000000000a R09: 00007f6ba438e740 [362108.293824] R10: fffffffffffffd8e R11: 0000000000000246 R12: 00007f6ba3f35760 [362108.293824] R13: 0000000000000002 R14: 00007f6ba3f30760 R15: 0000000000000002 [362108.293826] kworker/0:1 I 0 21445 2 0x80000000 [362108.293829] Workqueue: (null) (events_power_efficient) [362108.293830] Call Trace: [362108.293832] ? __schedule+0x59d/0x5f1 [362108.293833] ? cancel_delayed_work_sync+0xf/0xf [362108.293834] schedule+0x6a/0x85 [362108.293836] worker_thread+0x24e/0x297 [362108.293838] kthread+0x115/0x11d [362108.293839] ? kthread_park+0x76/0x76 [362108.293840] ret_from_fork+0x35/0x40 [362108.293842] kworker/4:1 I 0 21452 2 0x80000000 [362108.293845] Workqueue: (null) (mm_percpu_wq) [362108.293846] Call Trace: [362108.293848] ? __schedule+0x59d/0x5f1 [362108.293849] ? cancel_delayed_work_sync+0xf/0xf [362108.293850] schedule+0x6a/0x85 [362108.293851] worker_thread+0x24e/0x297 [362108.293853] kthread+0x115/0x11d [362108.293855] ? kthread_park+0x76/0x76 [362108.293856] ret_from_fork+0x35/0x40 [362108.293858] kworker/u16:1 I 0 21454 2 0x80000000 [362108.293861] Workqueue: (null) (btrfs-endio-write) [362108.293861] Call Trace: [362108.293863] ? __schedule+0x59d/0x5f1 [362108.293865] ? cancel_delayed_work_sync+0xf/0xf [362108.293866] schedule+0x6a/0x85 [362108.293867] worker_thread+0x24e/0x297 [362108.293869] kthread+0x115/0x11d [362108.293870] ? kthread_park+0x76/0x76 [362108.293871] ret_from_fork+0x35/0x40 [362108.293873] kworker/u16:3 I 0 21455 2 0x80000000 [362108.293876] Workqueue: (null) (btrfs-endio-write) [362108.293877] Call Trace: [362108.293879] ? __schedule+0x59d/0x5f1 [362108.293880] ? cancel_delayed_work_sync+0xf/0xf [362108.293881] schedule+0x6a/0x85 [362108.293883] worker_thread+0x24e/0x297 [362108.293884] kthread+0x115/0x11d [362108.293886] ? kthread_park+0x76/0x76 [362108.293887] ret_from_fork+0x35/0x40 [362108.293889] Showing busy workqueues and worker pools:
root@gentooserver /usr/src/linux/scripts # ./faddr2line ../vmlinux btrfs_commit_transaction+0x219/0x7ac btrfs_commit_transaction+0x219/0x7ac: btrfs_commit_transaction at ??:? On Wed, Apr 24, 2019 at 3:04 AM Qu Wenruo <quwenruo.bt...@gmx.com> wrote: > > > > On 2019/4/23 上午4:37, Nathan Dehnel wrote: > > I have a raid10 volume that frequently locks up when I try to write to > > it or delete things. Any command that touches it will hang (and can't > > be killed) and I have to start a new ssh session to get into the > > computer again. Nothing fixes it besides a reboot, and the volume will > > fail to unmount while the computer is shutting down. > > > > [ 302.360912] sysrq: SysRq : Show Blocked State > > [ 302.360951] task PC stack pid father > > [ 302.360987] btrfs-transacti D 0 2187 2 0x80000000 > > [ 302.360993] Call Trace: > > [ 302.361007] ? __schedule+0x59d/0x5f1 > > [ 302.361012] schedule+0x6a/0x85 > > [ 302.361019] btrfs_commit_transaction+0x219/0x7ac > > Btrfs is waiting other transaction to be committed. > > At that freeze, would you check which thread is taking CPU time? > > Are you utilizing backgroup balance or qgroup? > If you have tons of snapshots, they may hugely slow down qgroup. > Or you just have a running balance with qgroup enabled, it will almost > hang your system. > > It's going to be fixed in v5.2. While during 4.19 to v5.1 we have a lot > of optimizations to make balance + qgroup much faster. > > Thanks, > Qu > > > > > [ 302.361027] ? wait_woken+0x6d/0x6d > > [ 302.361031] transaction_kthread+0xc9/0x135 > > [ 302.361036] ? btrfs_cleanup_transaction+0x4c7/0x4c7 > > [ 302.361041] kthread+0x115/0x11d > > [ 302.361046] ? kthread_park+0x76/0x76 > > [ 302.361050] ret_from_fork+0x35/0x40 > > [ 302.361064] nfsd D 0 2292 2 0x80000000 > > [ 302.361067] Call Trace: > > [ 302.361072] ? __schedule+0x59d/0x5f1 > > [ 302.361077] schedule+0x6a/0x85 > > [ 302.361120] wait_current_trans+0x9b/0xd8 > > [ 302.361126] ? wait_woken+0x6d/0x6d > > [ 302.361131] start_transaction+0x1ae/0x38e > > [ 302.361135] btrfs_create+0x59/0x1d0 > > [ 302.361142] vfs_create+0xbf/0xef > > [ 302.361160] do_nfsd_create+0x2be/0x41d [nfsd] > > [ 302.361214] nfsd4_open+0x223/0x578 [nfsd] > > [ 302.361229] nfsd4_proc_compound+0x44a/0x562 [nfsd] > > [ 302.361240] nfsd_dispatch+0xb9/0x16e [nfsd] > > [ 302.361258] svc_process+0x524/0x6e2 [sunrpc] > > [ 302.361270] ? nfsd_destroy+0x5f/0x5f [nfsd] > > [ 302.361278] nfsd+0xf9/0x150 [nfsd] > > [ 302.361284] kthread+0x115/0x11d > > [ 302.361289] ? kthread_park+0x76/0x76 > > [ 302.361292] ret_from_fork+0x35/0x40 > > [ 302.361297] nfsd D 0 2293 2 0x80000000 > > [ 302.361300] Call Trace: > > [ 302.361305] ? __schedule+0x59d/0x5f1 > > [ 302.361309] schedule+0x6a/0x85 > > [ 302.361314] rwsem_down_write_failed+0x1af/0x210 > > [ 302.361325] ? nfsd_permission+0xa3/0xe8 [nfsd] > > [ 302.361330] call_rwsem_down_write_failed+0x13/0x20 > > [ 302.361335] down_write+0x20/0x2e > > [ 302.361345] nfsd_unlink+0xb1/0x16b [nfsd] > > [ 302.361359] nfsd4_remove+0x4e/0x10a [nfsd] > > [ 302.361371] nfsd4_proc_compound+0x44a/0x562 [nfsd] > > [ 302.361381] nfsd_dispatch+0xb9/0x16e [nfsd] > > [ 302.361395] svc_process+0x524/0x6e2 [sunrpc] > > [ 302.361401] ? __mutex_unlock_slowpath.isra.6+0x1e8/0x20a > > [ 302.361410] ? nfsd_destroy+0x5f/0x5f [nfsd] > > [ 302.361419] nfsd+0xf9/0x150 [nfsd] > > [ 302.361424] kthread+0x115/0x11d > > [ 302.361428] ? kthread_park+0x76/0x76 > > [ 302.361434] ret_from_fork+0x35/0x40 > > [ 302.361441] rm D 0 2388 2334 0x00000004 > > [ 302.361444] Call Trace: > > [ 302.361449] ? __schedule+0x59d/0x5f1 > > [ 302.361453] schedule+0x6a/0x85 > > [ 302.361457] wait_current_trans+0x9b/0xd8 > > [ 302.361462] ? wait_woken+0x6d/0x6d > > [ 302.361466] start_transaction+0x1ae/0x38e > > [ 302.361471] btrfs_start_transaction_fallback_global_rsv+0x32/0x127 > > [ 302.361475] btrfs_unlink+0x30/0xc0 > > [ 302.361478] vfs_unlink+0xd2/0x147 > > [ 302.361482] do_unlinkat+0x112/0x223 > > [ 302.361488] do_syscall_64+0x7e/0x133 > > [ 302.361492] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [ 302.361496] RIP: 0033:0x7f681509b5d7 > > [ 302.361504] Code: Bad RIP value. > > [ 302.361506] RSP: 002b:00007fffb1aed668 EFLAGS: 00000202 ORIG_RAX: > > 0000000000000107 > > [ 302.361510] RAX: ffffffffffffffda RBX: 000055672760c6c0 RCX: > > 00007f681509b5d7 > > [ 302.361512] RDX: 0000000000000000 RSI: 000055672760b490 RDI: > > 00000000ffffff9c > > [ 302.361514] RBP: 0000000000000000 R08: 0000000000000003 R09: > > 0000000000000000 > > [ 302.361516] R10: fffffffffffff12b R11: 0000000000000202 R12: > > 00007fffb1aed848 > > [ 302.361518] R13: 000055672760b400 R14: 0000000000000002 R15: > > 0000000000000000 > > >
