====================================== | [ 9.725061][ T179] softirqs last disabled at (26120): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 9.725064][ T179] Preemption disabled at: | [ 9.725065][ T179] 0x0 | [ 9.725075][ T179] Tainted: [W]=WARN [ 9.725076][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.725077][ T179] Call Trace: [ 9.725079][ T179] [ 9.725080][ T179] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.725087][ T179] __might_resched.cold (kernel/sched/core.c:9234) [ 9.725091][ T179] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.725095][ T179] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.725100][ T179] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 9.725103][ T179] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.725108][ T179] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.725111][ T179] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.725114][ T179] put_chars (drivers/char/virtio_console.c:1176) [ 9.725117][ T179] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.725119][ T179] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.725124][ T179] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.725129][ T179] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.725136][ T179] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.725139][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.725141][ T179] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.725145][ T179] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.725149][ T179] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.725151][ T179] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 9.725154][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.725156][ T179] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.725160][ T179] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.725164][ T179] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.725166][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.725171][ T179] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.725174][ T179] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.725176][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.725179][ T179] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.725182][ T179] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.725184][ T179] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.725187][ T179] vprintk_emit (kernel/printk/printk.c:2479) [ 9.725191][ T179] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.725195][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.725198][ T179] _printk (kernel/printk/printk.c:2504) [ 9.725202][ T179] ? snapshot_read.cold (user.c:?) [ 9.725205][ T179] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.725207][ T179] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.725211][ T179] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.725214][ T179] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.725218][ T179] ? exit_notify (kernel/exit.c:780) [ 9.725219][ T179] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.725221][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.725226][ T179] do_group_exit (kernel/exit.c:1151) [ 9.725229][ T179] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.725231][ T179] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.725233][ T179] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.725237][ T179] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.725240][ T179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.725242][ T179] RIP: 0033:0x7f4c699251b8 [ 9.725244][ T179] Code: Unable to access opcode bytes at 0x7f4c6992518e. Code starting with the faulting instruction =========================================== [ 9.725245][ T179] RSP: 002b:00007ffee2cdf598 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.725248][ T179] RAX: ffffffffffffffda RBX: 00007f4c69a55f88 RCX: 00007f4c699251b8 [ 9.725249][ T179] RDX: 00007f4c6966ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.725250][ T179] RBP: 00007ffee2cdf5f0 R08: 0000000000000000 R09: 0000000000000050 [ 9.725251][ T179] R10: 00007ffee2cdf3b0 R11: 0000000000000246 R12: 0000000000000001 [ 9.725252][ T179] R13: 0000000000000000 R14: 00007f4c69a54680 R15: 00007f4c69a55fa0 | [ 15.129216][ T256] softirqs last disabled at (1399589): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 15.129219][ T256] Preemption disabled at: | [ 15.129219][ T256] 0x0 | [ 15.129229][ T256] Tainted: [W]=WARN [ 15.129230][ T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.129233][ T256] Call Trace: [ 15.129234][ T256] [ 15.129236][ T256] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.129242][ T256] __might_resched.cold (kernel/sched/core.c:9234) [ 15.129247][ T256] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.129251][ T256] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.129256][ T256] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 15.129259][ T256] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.129265][ T256] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 15.129268][ T256] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.129271][ T256] put_chars (drivers/char/virtio_console.c:1176) [ 15.129274][ T256] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 15.129276][ T256] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.129279][ T256] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.129284][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.129286][ T256] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.129290][ T256] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.129294][ T256] ? mark_usage (kernel/locking/lockdep.c:4690) [ 15.129295][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.129297][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.129301][ T256] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.129303][ T256] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 15.129306][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.129309][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.129313][ T256] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.129317][ T256] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.129319][ T256] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 15.129322][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.129325][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.129329][ T256] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.129333][ T256] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.129335][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.129340][ T256] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.129343][ T256] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.129345][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.129347][ T256] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.129351][ T256] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.129353][ T256] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.129356][ T256] vprintk_emit (kernel/printk/printk.c:2479) [ 15.129360][ T256] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.129364][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.129368][ T256] _printk (kernel/printk/printk.c:2504) [ 15.129372][ T256] ? snapshot_read.cold (user.c:?) [ 15.129374][ T256] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 15.129377][ T256] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.129381][ T256] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 15.129384][ T256] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.129388][ T256] ? exit_notify (kernel/exit.c:780) [ 15.129393][ T256] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 15.129395][ T256] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 15.129398][ T256] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.129402][ T256] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.129405][ T256] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.129407][ T256] RIP: 0033:0x7f828dbf5c49 [ 15.129410][ T256] Code: Unable to access opcode bytes at 0x7f828dbf5c1f. Code starting with the faulting instruction =========================================== [ 15.129411][ T256] RSP: 002b:00007f828d3b4e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 15.129414][ T256] RAX: ffffffffffffffda RBX: 00007f828d3b56c0 RCX: 00007f828dbf5c49 [ 15.129415][ T256] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 15.129416][ T256] RBP: 00007f828d3b4f70 R08: 0000000000000001 R09: 00007f828d3b56c0 [ 15.129417][ T256] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f828cbb5000 [ 15.129418][ T256] R13: 00007ffd063b7300 R14: 0000000000000002 R15: 00007ffd063b7407 | [ 15.232469][ C2] | [ 15.232470][ C2] | [ 15.232470][ C2] stack backtrace: | [ 15.232478][ C2] Tainted: [W]=WARN [ 15.232479][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.232481][ C2] Call Trace: [ 15.232483][ C2] [ 15.232485][ C2] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.232490][ C2] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141) [ 15.232493][ C2] mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310) [ 15.232498][ C2] mark_lock (kernel/locking/lockdep.c:4769) [ 15.232501][ C2] mark_usage (kernel/locking/lockdep.c:4658) [ 15.232503][ C2] __lock_acquire (kernel/locking/lockdep.c:5208) [ 15.232507][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.232509][ C2] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 15.232512][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232516][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.232519][ C2] console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 15.232522][ C2] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 15.232524][ C2] console_emit_next_record (kernel/printk/printk.c:3177) [ 15.232527][ C2] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.232530][ C2] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 15.232533][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232536][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.232539][ C2] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.232542][ C2] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.232544][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.232548][ C2] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.232551][ C2] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.232553][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232556][ C2] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.232559][ C2] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.232561][ C2] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.232564][ C2] vprintk_emit (kernel/printk/printk.c:2479) [ 15.232567][ C2] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.232570][ C2] ? mark_lock (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:4775) [ 15.232573][ C2] _printk (kernel/printk/printk.c:2504) [ 15.232576][ C2] ? snapshot_read.cold (user.c:?) [ 15.232579][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.232581][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.232583][ C2] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 15.232586][ C2] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 15.232588][ C2] netdev_err (net/core/dev.c:13192 (discriminator 3)) [ 15.232591][ C2] ? netdev_crit (net/core/dev.c:13191) [ 15.232592][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 15.232596][ C2] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 15.232600][ C2] ? idr_get_free (??:?) [ 15.232603][ C2] ppp_xmit_process.cold (drivers/net/ppp/ppp_generic.c:1714 (discriminator 1)) ppp_generic [ 15.232607][ C2] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 15.232610][ C2] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 15.232614][ C2] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 15.232618][ C2] ? dev_nit_active_rcu (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/core/dev.c:2564 (discriminator 1)) [ 15.232622][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232624][ C2] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 15.232627][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232631][ C2] __dev_queue_xmit (net/core/dev.c:4926) [ 15.232634][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 15.232636][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 15.232638][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6)) [ 15.232640][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 15.232642][ C2] ? ref_tracker_dir_print (lib/ref_tracker.c:200) [ 15.232647][ C2] ? dst_init (./include/linux/netdevice.h:4528 ./include/linux/netdevice.h:4557 net/core/dst.c:52) [ 15.232649][ C2] ? dst_alloc (net/core/dst.c:94) [ 15.232651][ C2] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 15.232654][ C2] ? ip_route_output_flow (./include/net/route.h:169 net/ipv4/route.c:2961) [ 15.232656][ C2] ? __ip_queue_xmit (net/ipv4/ip_output.c:495) [ 15.232658][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.232660][ C2] ? down_read_nested (kernel/locking/rwsem.c:256 kernel/locking/rwsem.c:1290 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1710) [ 15.232663][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.232665][ C2] ? ip_finish_output2 (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) net/ipv4/ip_output.c:229 (discriminator 2)) [ 15.232668][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232672][ C2] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 15.232675][ C2] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 15.232678][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.232686][ C2] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 15.232690][ C2] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 15.232694][ C2] ? ip_finish_output (./include/linux/cgroup.h:915) [ 15.232697][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.232700][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.232703][ C2] ? ip4_dst_hoplimit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/route.h:397 (discriminator 2)) [ 15.232707][ C2] __ip_queue_xmit (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:533 (discriminator 4)) [ 15.232712][ C2] l2tp_xmit_core.constprop.0 (net/l2tp/l2tp_core.c:1220 net/l2tp/l2tp_core.c:1317) l2tp_core [ 15.232721][ C2] l2tp_xmit_skb (net/l2tp/l2tp_core.c:1333) l2tp_core [ 15.232727][ C2] ? l2tp_xmit_core.constprop.0 (./include/net/sock.h:3030) l2tp_core [ 15.232733][ C2] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 15.232738][ C2] ? pppol2tp_xmit (./include/linux/bottom_half.h:20 (discriminator 2) net/l2tp/l2tp_ppp.c:361 (discriminator 2)) l2tp_ppp [ 15.232741][ C2] pppol2tp_xmit (net/l2tp/l2tp_ppp.c:362) l2tp_ppp [ 15.232745][ C2] ppp_push (drivers/net/ppp/ppp_generic.c:1935 drivers/net/ppp/ppp_generic.c:1905) ppp_generic [ 15.232750][ C2] ppp_xmit_process (drivers/net/ppp/ppp_generic.c:1674 drivers/net/ppp/ppp_generic.c:1700) ppp_generic [ 15.232754][ C2] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 15.232759][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 15.232761][ C2] ? dst_release (./include/net/dst_ops.h:59 net/core/dst.c:163 net/core/dst.c:160 net/core/dst.c:177 net/core/dst.c:166) [ 15.232766][ C2] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 15.232770][ C2] ? dev_nit_active_rcu (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/core/dev.c:2564 (discriminator 1)) [ 15.232773][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232777][ C2] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 15.232781][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232784][ C2] __dev_queue_xmit (net/core/dev.c:4926) [ 15.232789][ C2] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.232793][ C2] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.232796][ C2] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 15.232800][ C2] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.232804][ C2] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.232807][ C2] ? kasan_save_track (mm/kasan/common.c:78) [ 15.232809][ C2] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 15.232812][ C2] ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563) [ 15.232815][ C2] ? dst_cow_metrics_generic (./include/linux/slab.h:991 (discriminator 1) net/core/dst.c:194 (discriminator 1)) [ 15.232818][ C2] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.232821][ C2] ? ___neigh_lookup_noref.constprop.0 (./include/net/neighbour.h:317 (discriminator 2)) [ 15.232824][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768) [ 15.232826][ C2] ? default_idle_call (kernel/sched/idle.c:122) [ 15.232829][ C2] ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:138 (discriminator 3)) [ 15.232833][ C2] ? ip6_dst_lookup (net/ipv6/ip6_output.c:1269) [ 15.232836][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.232839][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.232842][ C2] ? ip6_mtu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip6_route.h:384 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2)) [ 15.232846][ C2] ip6_finish_output (net/ipv6/ip6_output.c:210 net/ipv6/ip6_output.c:221) [ 15.232849][ C2] ip6_output (./include/linux/netfilter.h:314 net/ipv6/ip6_output.c:248) [ 15.232852][ C2] ? ip6_finish_output (./include/net/inet_sock.h:338 (discriminator 1)) [ 15.232855][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.232857][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.232860][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.232862][ C2] ? __local_bh_enable_ip (kernel/softirq.c:478) [ 15.232866][ C2] ndisc_send_skb (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:325 (discriminator 4) net/ipv6/ndisc.c:513 (discriminator 4)) [ 15.232870][ C2] ? ndisc_recv_na (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.232872][ C2] ? ipv6_get_lladdr (./include/net/addrconf.h:348 (discriminator 4)) [ 15.232881][ C2] ? ndisc_alloc_skb (./include/linux/rcupdate.h:882 net/ipv6/ndisc.c:436) [ 15.232883][ C2] ? __local_bh_enable_ip (kernel/softirq.c:478) [ 15.232886][ C2] ? ipv6_get_lladdr (./include/net/addrconf.h:348 (discriminator 4)) [ 15.232889][ C2] addrconf_rs_timer (net/ipv6/addrconf.c:4073) [ 15.232893][ C2] ? ipv6_get_lladdr (./include/net/addrconf.h:348 (discriminator 4)) [ 15.232897][ C2] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.232900][ C2] ? ipv6_get_lladdr (./include/net/addrconf.h:348 (discriminator 4)) [ 15.232903][ C2] call_timer_fn (kernel/time/timer.c:1748) [ 15.232907][ C2] ? detach_if_pending (./include/linux/list.h:1159) [ 15.232910][ C2] ? debug_object_active_state (lib/debugobjects.c:1122) [ 15.232914][ C2] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.232918][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.232921][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232925][ C2] __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374) [ 15.232928][ C2] ? ipv6_get_lladdr (./include/net/addrconf.h:348 (discriminator 4)) [ 15.232933][ C2] ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407) [ 15.232936][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.232941][ C2] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.232946][ C2] run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403) [ 15.232949][ C2] ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19)) [ 15.232952][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 15.232956][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.232960][ C2] handle_softirqs (kernel/softirq.c:645) [ 15.232963][ C2] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.232966][ C2] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 15.232970][ C2] __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) [ 15.232973][ C2] irq_exit_rcu (kernel/softirq.c:784) [ 15.232975][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37)) [ 15.232978][ C2] [ 15.232979][ C2] [ 15.232980][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 15.232983][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674) [ 15.232986][ C2] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63) [ 15.232989][ C2] Code: 48 8b 3d 94 12 06 02 e8 1f 00 00 00 48 2b 05 58 13 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 b6 17 00 fb f4 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 All code ======== 0: 48 8b 3d 94 12 06 02 mov 0x2061294(%rip),%rdi # 0x206129b 7: e8 1f 00 00 00 call 0x2b c: 48 2b 05 58 13 a0 00 sub 0xa01358(%rip),%rax # 0xa0136b 13: c3 ret 14: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 1b: f3 0f 1e fa endbr64 1f: eb 07 jmp 0x28 21: 0f 00 2d 13 b6 17 00 verw 0x17b613(%rip) # 0x17b63b 28: fb sti 29: f4 hlt 2a:* c3 ret <-- trapping instruction 2b: 0f 1f 40 d6 nopl -0x2a(%rax) 2f: 48 83 ec 20 sub $0x20,%rsp 33: 8b 17 mov (%rdi),%edx 35: 49 89 f8 mov %rdi,%r8 38: 83 e2 fe and $0xfffffffe,%edx 3b: 41 89 d2 mov %edx,%r10d 3e: 0f .byte 0xf 3f: 01 .byte 0x1 Code starting with the faulting instruction =========================================== 0: c3 ret 1: 0f 1f 40 d6 nopl -0x2a(%rax) 5: 48 83 ec 20 sub $0x20,%rsp 9: 8b 17 mov (%rdi),%edx b: 49 89 f8 mov %rdi,%r8 e: 83 e2 fe and $0xfffffffe,%edx 11: 41 89 d2 mov %edx,%r10d 14: 0f .byte 0xf 15: 01 .byte 0x1 [ 15.232993][ C2] RSP: 0018:ffa0000000157e00 EFLAGS: 00000282 [ 15.232996][ C2] RAX: 0000000000062bff RBX: ff11000001bf46c0 RCX: ffffffffb36fa307 [ 15.232998][ C2] RDX: ff11000001bf46c0 RSI: ffffffffb6678e7e RDI: ffffffffb608dce0 [ 15.233000][ C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 15.233002][ C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc3 [ 15.233003][ C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 15.233006][ C2] ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199) [ 15.233010][ C2] default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768) [ 15.233012][ C2] default_idle_call (kernel/sched/idle.c:122) [ 15.233015][ C2] cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199) [ 15.233018][ C2] ? arch_cpu_idle_exit+0x40/0x40 [ 15.233021][ C2] ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49) [ 15.233024][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 15.233026][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.233030][ C2] do_idle (kernel/sched/idle.c:355) [ 15.233032][ C2] cpu_startup_entry (kernel/sched/idle.c:454) [ 15.233035][ C2] start_secondary (arch/x86/kernel/smpboot.c:312) [ 15.233038][ C2] ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4)) [ 15.233042][ C2] common_startup_64 (arch/x86/kernel/head_64.S:418) | [ 16.428168][ T220] softirqs last disabled at (36562): __skb_recv_udp (./include/linux/spinlock.h:353 net/ipv4/udp.c:1945) | [ 16.428170][ T220] Preemption disabled at: | [ 16.428171][ T220] __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) | [ 16.428183][ T220] Tainted: [W]=WARN [ 16.428184][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.428186][ T220] Call Trace: [ 16.428187][ T220] [ 16.428189][ T220] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.428195][ T220] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) [ 16.428197][ T220] __might_resched.cold (kernel/sched/core.c:9234) [ 16.428201][ T220] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.428205][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428209][ T220] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 16.428212][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.428215][ T220] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.428219][ T220] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 16.428221][ T220] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.428223][ T220] put_chars (drivers/char/virtio_console.c:1176) [ 16.428226][ T220] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.428228][ T220] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 16.428231][ T220] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.428235][ T220] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.428237][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428239][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428241][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428243][ T220] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.428246][ T220] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.428248][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428250][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428251][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428253][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428255][ T220] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 16.428257][ T220] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.428259][ T220] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.428262][ T220] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.428264][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428266][ T220] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.428267][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428269][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 16.428271][ T220] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.428273][ T220] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 16.428275][ T220] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.428277][ T220] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.428279][ T220] vprintk_emit (kernel/printk/printk.c:2479) [ 16.428282][ T220] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.428284][ T220] ? l2tp_xmit_skb (net/l2tp/l2tp_core.c:1333) l2tp_core [ 16.428289][ T220] ? ppp_push (drivers/net/ppp/ppp_generic.c:1935 drivers/net/ppp/ppp_generic.c:1905) ppp_generic [ 16.428292][ T220] ? ppp_xmit_process (drivers/net/ppp/ppp_generic.c:1674 drivers/net/ppp/ppp_generic.c:1700) ppp_generic [ 16.428294][ T220] ? ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 16.428296][ T220] ? dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 16.428298][ T220] ? __dev_queue_xmit (net/core/dev.c:4926) [ 16.428300][ T220] ? ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 16.428304][ T220] _printk (kernel/printk/printk.c:2504) [ 16.428307][ T220] ? snapshot_read.cold (user.c:?) [ 16.428310][ T220] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 16.428312][ T220] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 16.428314][ T220] netdev_err (net/core/dev.c:13192 (discriminator 3)) [ 16.428316][ T220] ? netdev_crit (net/core/dev.c:13191) [ 16.428317][ T220] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 16.428321][ T220] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 16.428323][ T220] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 16.428325][ T220] ? idr_get_free (??:?) [ 16.428327][ T220] ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/preemptirq.h:40) [ 16.428328][ T220] ppp_xmit_process.cold (drivers/net/ppp/ppp_generic.c:1714 (discriminator 1)) ppp_generic [ 16.428331][ T220] ? __module_address (kernel/module/main.c:3915) [ 16.428335][ T220] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 16.428337][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428338][ T220] ? netif_skb_features (net/core/dev.c:3793 net/core/dev.c:3922) [ 16.428340][ T220] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 16.428343][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 16.428345][ T220] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 16.428347][ T220] ? dev_nit_active_rcu (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/core/dev.c:2564 (discriminator 1)) [ 16.428350][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428352][ T220] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 16.428355][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428357][ T220] __dev_queue_xmit (net/core/dev.c:4926) [ 16.428359][ T220] ? write_profile (profile.c:?) [ 16.428360][ T220] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 16.428363][ T220] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 16.428366][ T220] ? do_raw_spin_trylock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:98 kernel/locking/spinlock_debug.c:123) [ 16.428368][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428370][ T220] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 16.428372][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428374][ T220] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.428375][ T220] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 16.428377][ T220] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 16.428378][ T220] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 16.428379][ T220] ? stack_depot_save_flags (lib/stackdepot.c:728 (discriminator 3)) [ 16.428383][ T220] ? pskb_expand_head (net/core/skbuff.c:2347) [ 16.428385][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428387][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428388][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428390][ T220] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 16.428392][ T220] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:850 ./include/net/ip.h:475) [ 16.428394][ T220] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 16.428395][ T220] ? udp_sendmsg (net/ipv4/udp.c:1445) [ 16.428397][ T220] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 16.428399][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428401][ T220] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 16.428403][ T220] ? ip_finish_output (./include/linux/cgroup.h:915) [ 16.428405][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428407][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428408][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428410][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428412][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428413][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 16.428415][ T220] __ip_queue_xmit (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:533 (discriminator 4)) [ 16.428418][ T220] l2tp_xmit_core.constprop.0 (net/l2tp/l2tp_core.c:1220 net/l2tp/l2tp_core.c:1317) l2tp_core [ 16.428421][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428423][ T220] l2tp_xmit_skb (net/l2tp/l2tp_core.c:1333) l2tp_core [ 16.428425][ T220] ? l2tp_xmit_core.constprop.0 (./include/net/sock.h:3030) l2tp_core [ 16.428428][ T220] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 16.428430][ T220] ? pppol2tp_xmit (./include/linux/bottom_half.h:20 (discriminator 2) net/l2tp/l2tp_ppp.c:361 (discriminator 2)) l2tp_ppp [ 16.428432][ T220] pppol2tp_xmit (net/l2tp/l2tp_ppp.c:362) l2tp_ppp [ 16.428434][ T220] ppp_push (drivers/net/ppp/ppp_generic.c:1935 drivers/net/ppp/ppp_generic.c:1905) ppp_generic [ 16.428437][ T220] ppp_xmit_process (drivers/net/ppp/ppp_generic.c:1674 drivers/net/ppp/ppp_generic.c:1700) ppp_generic [ 16.428439][ T220] ? ppp_prepare_tx_skb (drivers/net/ppp/ppp_generic.c:1849) ppp_generic [ 16.428441][ T220] ? netif_skb_features (net/core/dev.c:3793 net/core/dev.c:3922) [ 16.428443][ T220] ? dst_release (./include/linux/rcuref.h:174 (discriminator 1) net/core/dst.c:168 (discriminator 1)) [ 16.428444][ T220] ? csum_partial (lib/checksum.c:119) [ 16.428446][ T220] ppp_start_xmit (drivers/net/ppp/ppp_generic.c:1481) ppp_generic [ 16.428448][ T220] ? dev_nit_active_rcu (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/core/dev.c:2564 (discriminator 1)) [ 16.428450][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428452][ T220] dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953) [ 16.428454][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428456][ T220] __dev_queue_xmit (net/core/dev.c:4926) [ 16.428458][ T220] ? sk_reset_timer (./include/linux/refcount.h:289) [ 16.428461][ T220] ? alloc_skb_with_frags (./include/linux/skbuff.h:1384 net/core/skbuff.c:6789) [ 16.428463][ T220] ? ip_generic_getfrag (net/ipv4/ip_output.c:945) [ 16.428465][ T220] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 16.428467][ T220] ? ip_frag_init (./include/linux/skbuff.h:3160) [ 16.428469][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428470][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428472][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428474][ T220] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.428475][ T220] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 16.428476][ T220] ? get_random_u16 (./include/linux/local_lock_internal.h:60 (discriminator 7)) [ 16.428478][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428479][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428481][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.428482][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428484][ T220] ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:236 (discriminator 3)) [ 16.428486][ T220] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:850 ./include/net/ip.h:475) [ 16.428488][ T220] ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504) [ 16.428490][ T220] ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41)) [ 16.428491][ T220] ? __ip_make_skb (net/ipv4/ip_output.c:1390 net/ipv4/ip_output.c:1501) [ 16.428493][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428495][ T220] ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437) [ 16.428497][ T220] ? ip_finish_output (./include/linux/cgroup.h:915) [ 16.428499][ T220] ? ip_frag_init (./include/linux/skbuff.h:3160) [ 16.428500][ T220] ? ip_flush_pending_frames (net/ipv4/ip_output.c:1550) [ 16.428503][ T220] ip_send_skb (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1510 (discriminator 4)) [ 16.428505][ T220] udp_send_skb (net/ipv4/udp.c:1163 (discriminator 1)) [ 16.428507][ T220] udp_sendmsg (net/ipv4/udp.c:1445) [ 16.428509][ T220] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 16.428511][ T220] ? udp_cmsg_send (net/ipv4/udp.c:1218) [ 16.428513][ T220] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 16.428514][ T220] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 16.428516][ T220] ? anon_pipe_prefill_and_lock (fs/pipe.c:153) [ 16.428520][ T220] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 16.428522][ T220] ? skb_attempt_defer_free (./include/linux/instrumented.h:55 ./include/linux/llist.h:242 ./include/linux/llist.h:265 net/core/skbuff.c:7355) [ 16.428523][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428525][ T220] ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999) [ 16.428527][ T220] ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1)) [ 16.428529][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 16.428531][ T220] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 16.428534][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428536][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 16.428538][ T220] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 16.428541][ T220] ? copy_msghdr_from_user (net/socket.c:2650) [ 16.428543][ T220] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 16.428544][ T220] ? move_addr_to_kernel (net/socket.c:258) [ 16.428547][ T220] ___sys_sendmsg (net/socket.c:2767) [ 16.428549][ T220] ? anon_pipe_prefill_and_lock (fs/pipe.c:175) [ 16.428551][ T220] ? copy_msghdr_from_user (net/socket.c:2619) [ 16.428552][ T220] ? kfree (mm/slub.c:6778 (discriminator 1)) [ 16.428554][ T220] ? _copy_to_user (./include/linux/instrumented.h:129 ./include/linux/uaccess.h:201 lib/usercopy.c:24) [ 16.428556][ T220] ? poll_select_finish (fs/select.c:343) [ 16.428561][ T220] __sys_sendmsg (net/socket.c:2799) [ 16.428563][ T220] ? __sys_sendmsg_sock (net/socket.c:2780) [ 16.428566][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.428568][ T220] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.428570][ T220] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.428572][ T220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.428574][ T220] RIP: 0033:0x7fd8d8a5854e [ 16.428576][ T220] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 16.428578][ T220] RSP: 002b:00007fff65b14610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 16.428582][ T220] RAX: ffffffffffffffda RBX: 0000000024fb55d0 RCX: 00007fd8d8a5854e [ 16.428583][ T220] RDX: 0000000000000000 RSI: 00007fff65b146a8 RDI: 0000000000000005 [ 16.428584][ T220] RBP: 00007fff65b14620 R08: 0000000000000000 R09: 0000000000000000 [ 16.428585][ T220] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000024fb55a0 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_lock_spinning_enable __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __skb_recv_udp:__dev_queue_xmit:dump_stack_lvl:__kmalloc_noprof:put_chars