====================================== | [ 49.290846][ T71] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) | [ 49.290994][ T71] | [ 49.291066][ T71] | [ 49.291066][ T71] stack backtrace: [ 49.291458][ T71] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 49.291869][ T71] Workqueue: bond0 bond_mii_monitor [ 49.292016][ T71] Call Trace: [ 49.292137][ T71] [ 49.292305][ T71] dump_stack_lvl (lib/dump_stack.c:117) [ 49.292451][ T71] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 49.292601][ T71] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 49.292754][ T71] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 49.292934][ T71] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 49.293083][ T71] ? __bfs (kernel/locking/lockdep.c:1787) [ 49.293192][ T71] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 49.293331][ T71] check_irq_usage (kernel/locking/lockdep.c:2871) [ 49.293470][ T71] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 49.293711][ T71] ? __bfs (kernel/locking/lockdep.c:1787) [ 49.293819][ T71] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 49.293966][ T71] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 49.294108][ T71] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 49.294340][ T71] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 49.294491][ T71] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 49.294632][ T71] check_prev_add (kernel/locking/lockdep.c:3138) [ 49.294779][ T71] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 49.294928][ T71] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 49.295189][ T71] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 49.295299][ T71] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 49.295453][ T71] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 49.295595][ T71] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 49.295786][ T71] __lock_acquire (kernel/locking/lockdep.c:5137) [ 49.295934][ T71] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 49.296178][ T71] ? __get_task_comm (fs/exec.c:1234) [ 49.296321][ T71] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 49.296427][ T71] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 49.296568][ T71] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 49.296711][ T71] ? __get_task_comm (fs/exec.c:1234) [ 49.296854][ T71] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 49.296994][ T71] ? __get_task_comm (fs/exec.c:1234) [ 49.297320][ T71] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 49.297459][ T71] ? __get_task_comm (fs/exec.c:1234) [ 49.297599][ T71] __get_task_comm (fs/exec.c:1234) [ 49.297740][ T71] ref_tracker_alloc (lib/ref_tracker.c:217) [ 49.297882][ T71] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 49.298022][ T71] ? dst_init (net/core/dst.c:53) [ 49.298134][ T71] ? dst_alloc (net/core/dst.c:96) [ 49.298240][ T71] ? ip6_dst_alloc (net/ipv6/route.c:343) [ 49.298379][ T71] ? icmp6_dst_alloc (net/ipv6/route.c:3273) [ 49.298605][ T71] ? ndisc_send_skb (net/ipv6/ndisc.c:490) [ 49.298746][ T71] ? ndisc_send_na (net/ipv6/ndisc.c:524) [ 49.298889][ T71] ? ndisc_send_unsol_na (net/ipv6/ndisc.c:593) [ 49.299035][ T71] ? ndisc_netdev_event (net/ipv6/ndisc.c:1931) [ 49.299275][ T71] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 49.299418][ T71] ? call_netdevice_notifiers (net/core/dev.c:2028) [ 49.299568][ T71] ? bond_change_active_slave (drivers/net/bonding/bond_main.c:1240) [ 49.299746][ T71] ? bond_select_active_slave (drivers/net/bonding/bond_main.c:1284) [ 49.299892][ T71] ? bond_miimon_commit (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:592 ./include/net/bonding.h:103 drivers/net/bonding/bond_main.c:2796) [ 49.300039][ T71] ? bond_mii_monitor (drivers/net/bonding/bond_main.c:2850) [ 49.300185][ T71] ? process_one_work (kernel/workqueue.c:3254) [ 49.300328][ T71] ? worker_thread (kernel/workqueue.c:3329 kernel/workqueue.c:3416) [ 49.300481][ T71] ? __create_object (mm/kmemleak.c:756) [ 49.300632][ T71] dst_init (net/core/dst.c:53) [ 49.300742][ T71] dst_alloc (net/core/dst.c:96) [ 49.300847][ T71] ip6_dst_alloc (net/ipv6/route.c:343) [ 49.300985][ T71] icmp6_dst_alloc (net/ipv6/route.c:3273) [ 49.301129][ T71] ndisc_send_skb (net/ipv6/ndisc.c:490) [ 49.301275][ T71] ? __pfx_ndisc_send_skb (net/ipv6/ndisc.c:473) [ 49.301423][ T71] ? skb_set_owner_w (./arch/x86/include/asm/atomic.h:97 ./include/linux/atomic/atomic-arch-fallback.h:749 ./include/linux/atomic/atomic-instrumented.h:253 ./include/linux/refcount.h:184 ./include/linux/refcount.h:213 net/core/sock.c:2523) [ 49.301563][ T71] ndisc_send_na (net/ipv6/ndisc.c:524) [ 49.301706][ T71] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 49.301935][ T71] ? __pfx_ndisc_send_na (net/ipv6/ndisc.c:524) [ 49.302089][ T71] ? ndisc_send_unsol_na (net/ipv6/ndisc.c:587) [ 49.302234][ T71] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 49.302376][ T71] ? ndisc_send_unsol_na (net/ipv6/ndisc.c:587) [ 49.302601][ T71] ndisc_send_unsol_na (net/ipv6/ndisc.c:593) [ 49.302747][ T71] ndisc_netdev_event (net/ipv6/ndisc.c:1931) [ 49.302894][ T71] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 49.303034][ T71] call_netdevice_notifiers (net/core/dev.c:2028) [ 49.303287][ T71] ? __pfx_call_netdevice_notifiers (net/core/dev.c:2028) [ 49.303465][ T71] ? bond_should_notify_peers (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 drivers/net/bonding/bond_main.c:1136) [ 49.303607][ T71] bond_change_active_slave (drivers/net/bonding/bond_main.c:1240) [ 49.303744][ T71] ? __pfx_bond_change_active_slave (drivers/net/bonding/bond_main.c:1161) [ 49.303936][ T71] bond_select_active_slave (drivers/net/bonding/bond_main.c:1284) [ 49.304080][ T71] ? __pfx_bond_select_active_slave (drivers/net/bonding/bond_main.c:1275) [ 49.304252][ T71] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 49.304441][ T71] bond_miimon_commit (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:592 ./include/net/bonding.h:103 drivers/net/bonding/bond_main.c:2796) [ 49.304581][ T71] ? __pfx_bond_miimon_commit (drivers/net/bonding/bond_main.c:2708) [ 49.304719][ T71] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 49.304866][ T71] ? bond_mii_monitor (drivers/net/bonding/bond_main.c:2839) [ 49.305008][ T71] bond_mii_monitor (drivers/net/bonding/bond_main.c:2850) [ 49.305163][ T71] ? __pfx_bond_mii_monitor (drivers/net/bonding/bond_main.c:2810) [ 49.305307][ T71] ? process_one_work (kernel/workqueue.c:3230) [ 49.305447][ T71] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 49.305689][ T71] ? process_one_work (kernel/workqueue.c:3230) [ 49.305915][ T71] process_one_work (kernel/workqueue.c:3254) [ 49.306059][ T71] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 49.306201][ T71] ? __pfx_process_one_work (kernel/workqueue.c:3156) [ 49.306343][ T71] ? assign_work (kernel/workqueue.c:1209) [ 49.306576][ T71] worker_thread (kernel/workqueue.c:3329 kernel/workqueue.c:3416) [ 49.306724][ T71] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 49.306988][ T71] ? __pfx_worker_thread (kernel/workqueue.c:3362) [ 49.307133][ T71] ? __pfx_worker_thread (kernel/workqueue.c:3362) [ 49.307277][ T71] kthread (kernel/kthread.c:388) [ 49.307390][ T71] ? __pfx_kthread (kernel/kthread.c:341) [ 49.307534][ T71] ret_from_fork (arch/x86/kernel/process.c:147) [ 49.307768][ T71] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: ret_from_fork_asm:dump_stack_lvl:print_bad_irq_dependency:check_irq_usage