rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12/1:b..l P4549/1:b..l P6625/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=19465, q=670 ncpus=2)
task:syz.3.374 state:R running task stack:24672 pid:6625 tgid:6625 ppid:5103 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
insert_page mm/memory.c:2028 [inline]
vm_insert_page+0x68e/0xaf0 mm/memory.c:2180
kcov_mmap+0xda/0x140 kernel/kcov.c:496
call_mmap include/linux/fs.h:2129 [inline]
mmap_region+0xe91/0x2090 mm/mmap.c:2886
do_mmap+0x8ad/0xfa0 mm/mmap.c:1397
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1443
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f14dad75b93
RSP: 002b:00007fff73ee2698 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f14daf06280 RCX: 00007f14dad75b93
RDX: 0000000000000003 RSI: 0000000000200000 RDI: 00007f14d8a01000
RBP: 00007f14d8a00000 R08: 00000000000000db R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f14daf061e8 R14: 00007f14daf061f4 R15: 00007fff73ee27d0
task:udevd state:R running task stack:21296 pid:4549 tgid:4549 ppid:1 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763
Code: 2b 00 74 08 4c 89 f7 e8 aa 12 8a 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900096072c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920012c0e64 RCX: c9401710c96dad00
RDX: dffffc0000000000 RSI: ffffffff8bcadea0 RDI: ffffffff8c207800
RBP: ffffc90009607408 R08: ffffffff93006607 R09: 1ffffffff2600cc0
R10: dffffc0000000000 R11: fffffbfff2600cc1 R12: 1ffff920012c0e60
R13: dffffc0000000000 R14: ffffc90009607320 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:327 [inline]
rcu_read_lock include/linux/rcupdate.h:839 [inline]
is_bpf_text_address+0x46/0x2a0 kernel/bpf/core.c:767
kernel_text_address+0xa7/0xe0 kernel/extable.c:125
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:312 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3979 [inline]
slab_alloc_node mm/slub.c:4028 [inline]
kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4035
alloc_empty_file+0x9e/0x1d0 fs/file_table.c:202
path_openat+0x105/0x3470 fs/namei.c:3872
do_filp_open+0x235/0x490 fs/namei.c:3913
do_sys_openat2+0x13e/0x1d0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_openat fs/open.c:1447 [inline]
__se_sys_openat fs/open.c:1442 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1442
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d0998e9a4
RSP: 002b:00007fff674460b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2d0998e9a4
RDX: 00000000000a0800 RSI: 00005593e7d5b920 RDI: 00000000ffffff9c
RBP: 00005593e7d5b920 R08: 0000000000000008 R09: 8d072313e7fa7de1
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000000200000001 R14: 00005593b0140fee R15: 0000000000000000
task:kworker/u8:1 state:R running task stack:22176 pid:12 tgid:12 ppid:2 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:ieee80211_sta_get_rates+0x364/0x660 net/mac80211/util.c:1556
Code: 21 eb 89 df 89 ee e8 6b d4 86 f6 39 eb 75 7a 4b 8d 5c ae 04 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 0f b6 04 20 <84> c0 0f 85 d9 00 00 00 0f b7 1b 8b 6c 24 48 89 ef 89 de e8 34 d4
RSP: 0018:ffffc90000117798 EFLAGS: 00000213
RAX: 0000000000000000 RBX: ffff88807bc8dc54 RCX: dffffc0000000000
RDX: ffff888016ec5a00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8b0c7115 R09: 1ffffffff1f5f915
R10: dffffc0000000000 R11: fffffbfff1f5f916 R12: dffffc0000000000
R13: 0000000000000006 R14: ffff88807bc8dc38 R15: 0000000000000002
ieee80211_update_sta_info net/mac80211/ibss.c:989 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1098 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1579 [inline]
ieee80211_ibss_rx_queued_mgmt+0x11e1/0x2d70 net/mac80211/ibss.c:1606
ieee80211_iface_process_skb net/mac80211/iface.c:1588 [inline]
ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1642
cfg80211_wiphy_work+0x2dd/0x490 net/wireless/core.c:440
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: rcu_preempt kthread starved for 10463 jiffies! g19465 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 248s!
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 245s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 248s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 247s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 248s!
BUG: workqueue lockup - pool cpus=0-1 node=0 flags=0x4 nice=-20 stuck for 241s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=18 refcnt=19
in-flight: 9:nsim_dev_trap_report_work
pending: nsim_dev_trap_report_work, psi_avgs_work, 3*nsim_dev_hwstats_traffic_work, nsim_dev_trap_report_work, vmstat_shepherd, psi_avgs_work, ovs_dp_masks_rebalance, 2*psi_avgs_work, 2*ovs_dp_masks_rebalance, kfree_rcu_monitor, 3*rht_deferred_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=18 refcnt=19
pending: nsim_dev_trap_report_work, 3*nsim_dev_hwstats_traffic_work, 2*nsim_dev_trap_report_work, psi_avgs_work, kfree_rcu_monitor, 2*psi_avgs_work, 4*ovs_dp_masks_rebalance, ima_keys_handler, switchdev_deferred_process_work, 2*rht_deferred_worker
workqueue events_highpri: flags=0x10
pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2
pending: fill_page_cache_func
pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=1 refcnt=2
pending: fill_page_cache_func
workqueue events_long: flags=0x0
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=8 refcnt=9
pending: 3*defense_work_handler, br_multicast_gc_work, 3*br_fdb_cleanup, br_multicast_gc_work
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=7 refcnt=8
pending: 4*defense_work_handler, 3*br_multicast_gc_work
workqueue events_unbound: flags=0x2
pwq 8: cpus=0-1 flags=0x4 nice=0 active=13 refcnt=14
in-flight: 2486:cfg80211_wiphy_work ,12:cfg80211_wiphy_work cfg80211_wiphy_work
pending: 2*cfg80211_wiphy_work, toggle_allocation_gate, cfg80211_wiphy_work, macvlan_process_broadcast, cfg80211_wiphy_work, 2*macvlan_process_broadcast, crng_reseed, idle_cull_fn
pwq 8: cpus=0-1 flags=0x4 nice=0 active=21 refcnt=22
in-flight: 11:call_usermodehelper_exec_work
pending: 7*cfg80211_wiphy_work, flush_memcg_stats_dwork, 9*macvlan_process_broadcast, 3*idle_cull_fn
workqueue events_power_efficient: flags=0x80
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_ratelimiter_gc_entries
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=8 refcnt=9
pending: 2*neigh_managed_work, 2*neigh_periodic_work, do_cache_clean, gc_worker, reg_check_chans_work, check_lifetime
workqueue rcu_gp: flags=0x8
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: srcu_invoke_callbacks
workqueue mm_percpu_wq: flags=0x8
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: vmstat_update
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: vmstat_update
workqueue writeback: flags=0x4a
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wb_workfn
pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3
pending: 2*wb_workfn
workqueue kblockd: flags=0x18
pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=1 refcnt=2
pending: blk_mq_timeout_work
pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=3 refcnt=4
pending: 3*blk_mq_timeout_work
workqueue dm_bufio_cache: flags=0x8
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: work_fn
workqueue ipv6_addrconf: flags=0x6000a
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=10
pending: addrconf_verify_work
inactive: 6*addrconf_verify_work
workqueue krxrpcd: flags=0x2001a
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=10
pending: rxrpc_peer_keepalive_worker
inactive: 6*rxrpc_peer_keepalive_worker
workqueue bat_events: flags=0x6000a
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=57
in-flight: 2464:batadv_nc_worker
inactive: 2*batadv_nc_worker, 6*batadv_mcast_mla_update, 3*batadv_nc_worker, batadv_dat_purge, batadv_bla_periodic_work, batadv_tt_purge, batadv_purge_orig, 2*batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_purge_orig, 16*batadv_iv_send_outstanding_bat_ogm_packet, 5*batadv_tt_purge, batadv_dat_purge, 2*batadv_bla_periodic_work, 2*batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, 2*batadv_bla_periodic_work, batadv_dat_purge
workqueue hci4: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
pending: hci_conn_timeout
workqueue hci5: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
pending: hci_conn_timeout
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue hci2: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
pending: hci_conn_timeout
workqueue hci3: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
pending: hci_conn_timeout
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg2: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue hci1: flags=0x20012
pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
pending: hci_conn_timeout
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg1: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-crypt-wg2: flags=0x28
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=248s workers=10 idle: 1050 8 5173 5168 5174 5171 5175 5159 5172
pool 8: cpus=0-1 flags=0x4 nice=0 hung=248s workers=12 idle: 1086 2428 35 53 2444 62 2480 156
Showing backtraces of running workers in stalled CPU-bound worker pools:
pool 2:
task:kworker/0:1 state:R running task stack:22800 pid:9 tgid:9 ppid:2 flags:0x00004000
Workqueue: events nsim_dev_trap_report_work
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:823 [inline]
nsim_dev_trap_report_work+0x9ca/0xaa0 drivers/net/netdevsim/dev.c:850
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244