====================================== | [ 539.599788][ T3163] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) | [ 539.599790][ T3163] | [ 539.599791][ T3163] | [ 539.599791][ T3163] stack backtrace: [ 539.599798][ T3163] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 539.599800][ T3163] Call Trace: [ 539.599802][ T3163] [ 539.599804][ T3163] dump_stack_lvl (lib/dump_stack.c:123) [ 539.599810][ T3163] print_bad_irq_dependency (kernel/locking/lockdep.c:2618) [ 539.599815][ T3163] check_irq_usage (kernel/locking/lockdep.c:2863) [ 539.599818][ T3163] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 539.599823][ T3163] ? __bfs (kernel/locking/lockdep.c:1815 (discriminator 1)) [ 539.599827][ T3163] ? check_path.constprop.0 (kernel/locking/lockdep.c:2133) [ 539.599829][ T3163] ? check_noncircular (kernel/locking/lockdep.c:2160) [ 539.599834][ T3163] ? check_prev_add (kernel/locking/lockdep.c:3169) [ 539.599836][ T3163] check_prev_add (kernel/locking/lockdep.c:3169) [ 539.599841][ T3163] validate_chain (kernel/locking/lockdep.c:3285 kernel/locking/lockdep.c:3908) [ 539.599845][ T3163] __lock_acquire (kernel/locking/lockdep.c:5237) [ 539.599849][ T3163] lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) [ 539.599853][ T3163] ? virtnet_poll_tx (./include/linux/netdevice.h:4661 drivers/net/virtio_net.c:3255) [ 539.599856][ T3163] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 539.599861][ T3163] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) [ 539.599864][ T3163] ? virtnet_poll_tx (./include/linux/netdevice.h:4661 drivers/net/virtio_net.c:3255) [ 539.599867][ T3163] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 539.599870][ T3163] ? virtnet_poll_tx (./include/linux/netdevice.h:4661 drivers/net/virtio_net.c:3255) [ 539.599872][ T3163] virtnet_poll_tx (./include/linux/netdevice.h:4661 drivers/net/virtio_net.c:3255) [ 539.599876][ T3163] poll_napi (net/core/netpoll.c:156 net/core/netpoll.c:170) [ 539.599880][ T3163] netpoll_poll_dev (net/core/netpoll.c:202) [ 539.599884][ T3163] __netpoll_send_skb (./include/asm-generic/delay.h:62 net/core/netpoll.c:356) [ 539.599888][ T3163] ? netpoll_send_udp (./include/linux/skbuff.h:3109 net/core/netpoll.c:490 net/core/netpoll.c:528) [ 539.599892][ T3163] netpoll_send_skb (net/core/netpoll.c:410) [ 539.599895][ T3163] send_ext_msg_udp (drivers/net/netconsole.c:1498 drivers/net/netconsole.c:1536 drivers/net/netconsole.c:1692) netconsole [ 539.599902][ T3163] write_ext_msg (drivers/net/netconsole.c:1710 drivers/net/netconsole.c:1698) netconsole [ 539.599907][ T3163] console_emit_next_record (kernel/printk/printk.c:3055 (discriminator 3) kernel/printk/printk.c:3139 (discriminator 3)) [ 539.599911][ T3163] ? devkmsg_read (kernel/printk/printk.c:3082) [ 539.599915][ T3163] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 539.599920][ T3163] console_flush_all (kernel/printk/printk.c:3227) [ 539.599925][ T3163] ? console_emit_next_record (kernel/printk/printk.c:3188) [ 539.599930][ T3163] console_unlock (kernel/printk/printk.c:3286 kernel/printk/printk.c:3325) [ 539.599933][ T3163] ? console_flush_all (kernel/printk/printk.c:3320) [ 539.599936][ T3163] ? lock_acquire (kernel/locking/lockdep.c:5872) [ 539.599938][ T3163] ? vprintk_emit (kernel/printk/printk.c:2449) [ 539.599943][ T3163] ? __down_trylock_console_sem (kernel/printk/printk.c:332) [ 539.599945][ T3163] ? vprintk_emit (kernel/printk/printk.c:2449) [ 539.599949][ T3163] vprintk_emit (kernel/printk/printk.c:2450) [ 539.599953][ T3163] ? wake_up_klogd_work_func (kernel/printk/printk.c:2397) [ 539.599957][ T3163] ? rcu_gp_is_expedited (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 kernel/rcu/update.c:196) [ 539.599959][ T3163] ? synchronize_rcu (kernel/rcu/tree.c:3351) [ 539.599963][ T3163] _printk (kernel/printk/printk.c:2470) [ 539.599966][ T3163] ? console_prepend_message (kernel/printk/printk.c:2470) [ 539.599971][ T3163] ? trace_rcu_sr_normal (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:646 ./include/linux/cpumask.h:1205 ./include/trace/events/rcu.h:681) [ 539.599974][ T3163] enabled_store (drivers/net/netconsole.c:630) netconsole [ 539.599978][ T3163] ? down_read (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1268 kernel/locking/rwsem.c:1274 kernel/locking/rwsem.c:1539) [ 539.599982][ T3163] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:561) netconsole [ 539.599988][ T3163] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:561) netconsole [ 539.599992][ T3163] configfs_write_iter (fs/configfs/file.c:208 fs/configfs/file.c:229) [ 539.599997][ T3163] vfs_write (fs/read_write.c:594 fs/read_write.c:686) [ 539.600000][ T3163] ? ww_mutex_lock (kernel/locking/mutex.c:759) [ 539.600003][ T3163] ? kernel_write (fs/read_write.c:667) [ 539.600007][ T3163] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1072) [ 539.600014][ T3163] ksys_write (fs/read_write.c:738) [ 539.600016][ T3163] ? __ia32_sys_read (fs/read_write.c:728) [ 539.600022][ T3163] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 539.600025][ T3163] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 539.600028][ T3163] RIP: 0033:0x7f276a3b636f [ 539.600031][ T3163] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 89 8a f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 dc 8a f8 ff 48 All code ======== 0: 89 54 24 18 mov %edx,0x18(%rsp) 4: 48 89 74 24 10 mov %rsi,0x10(%rsp) 9: 89 7c 24 08 mov %edi,0x8(%rsp) d: e8 89 8a f8 ff call 0xfffffffffff88a9b 12: 48 8b 54 24 18 mov 0x18(%rsp),%rdx 17: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 1c: 41 89 c0 mov %eax,%r8d 1f: 8b 7c 24 08 mov 0x8(%rsp),%edi 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 31 ja 0x63 32: 44 89 c7 mov %r8d,%edi 35: 48 89 44 24 08 mov %rax,0x8(%rsp) 3a: e8 dc 8a f8 ff call 0xfffffffffff88b1b 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 31 ja 0x39 8: 44 89 c7 mov %r8d,%edi b: 48 89 44 24 08 mov %rax,0x8(%rsp) 10: e8 dc 8a f8 ff call 0xfffffffffff88af1 15: 48 rex.W [ 539.600035][ T3163] RSP: 002b:00007fffdb2fba90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 539.600038][ T3163] RAX: ffffffffffffffda RBX: 00007f276a1dc148 RCX: 00007f276a3b636f [ 539.600040][ T3163] RDX: 0000000000000001 RSI: 0000564de69182c0 RDI: 000000000000000a [ 539.600042][ T3163] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000002 [ 539.600043][ T3163] R10: 0000000000000002 R11: 0000000000000293 R12: 00007f275c0cfdc0 Finger prints: print_bad_irq_dependency:check_irq_usage:check_prev_add:validate_chain:__lock_acquire