====================================== | [ 532.295860][ T1586] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) | [ 532.295864][ T1586] | [ 532.295865][ T1586] | [ 532.295865][ T1586] stack backtrace: [ 532.295877][ T1586] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 532.295880][ T1586] Call Trace: [ 532.295884][ T1586] [ 532.295887][ T1586] dump_stack_lvl (lib/dump_stack.c:123) [ 532.295896][ T1586] print_bad_irq_dependency (kernel/locking/lockdep.c:2618) [ 532.295907][ T1586] check_irq_usage (kernel/locking/lockdep.c:2863) [ 532.295914][ T1586] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 532.295920][ T1586] ? __bfs (kernel/locking/lockdep.c:1815 (discriminator 1)) [ 532.295925][ T1586] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:1997) [ 532.295935][ T1586] ? check_noncircular (kernel/locking/lockdep.c:2160) [ 532.295946][ T1586] ? check_prev_add (kernel/locking/lockdep.c:3169) [ 532.295951][ T1586] check_prev_add (kernel/locking/lockdep.c:3169) [ 532.295960][ T1586] validate_chain (kernel/locking/lockdep.c:3285 kernel/locking/lockdep.c:3908) [ 532.295969][ T1586] __lock_acquire (kernel/locking/lockdep.c:5237) [ 532.295977][ T1586] lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) [ 532.295982][ T1586] ? virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) [ 532.295988][ T1586] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) [ 532.295994][ T1586] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5831) [ 532.295998][ T1586] ? virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) [ 532.296006][ T1586] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 532.296010][ T1586] ? virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) [ 532.296015][ T1586] virtnet_poll_tx (./include/linux/netdevice.h:4658 drivers/net/virtio_net.c:3255) [ 532.296023][ T1586] poll_napi (net/core/netpoll.c:156 net/core/netpoll.c:170) [ 532.296031][ T1586] netpoll_poll_dev (net/core/netpoll.c:202) [ 532.296040][ T1586] __netpoll_send_skb (./include/asm-generic/delay.h:62 net/core/netpoll.c:356) [ 532.296048][ T1586] ? netpoll_send_udp (./include/linux/skbuff.h:3109 net/core/netpoll.c:490 net/core/netpoll.c:528) [ 532.296056][ T1586] netpoll_send_skb (net/core/netpoll.c:410) [ 532.296062][ T1586] send_ext_msg_udp (drivers/net/netconsole.c:1495 drivers/net/netconsole.c:1533 drivers/net/netconsole.c:1689) netconsole [ 532.296076][ T1586] write_ext_msg (drivers/net/netconsole.c:1707 drivers/net/netconsole.c:1695) netconsole [ 532.296085][ T1586] console_emit_next_record (kernel/printk/printk.c:3138 (discriminator 3)) [ 532.296091][ T1586] ? __pfx_console_emit_next_record (kernel/printk/printk.c:3082) [ 532.296096][ T1586] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) [ 532.296104][ T1586] console_flush_all (kernel/printk/printk.c:3227) [ 532.296112][ T1586] ? __pfx_console_flush_all (kernel/printk/printk.c:3188) [ 532.296123][ T1586] console_unlock (kernel/printk/printk.c:3286 kernel/printk/printk.c:3325) [ 532.296129][ T1586] ? __pfx_console_unlock (kernel/printk/printk.c:3320) [ 532.296134][ T1586] ? lock_acquire (kernel/locking/lockdep.c:5872) [ 532.296138][ T1586] ? vprintk_emit (kernel/printk/printk.c:2449) [ 532.296146][ T1586] ? __down_trylock_console_sem (kernel/printk/printk.c:332) [ 532.296151][ T1586] ? vprintk_emit (kernel/printk/printk.c:2449) [ 532.296158][ T1586] vprintk_emit (kernel/printk/printk.c:2450) [ 532.296165][ T1586] ? __pfx_vprintk_emit (kernel/printk/printk.c:2397) [ 532.296171][ T1586] ? _copy_from_iter (./arch/x86/include/asm/uaccess_64.h:126 ./arch/x86/include/asm/uaccess_64.h:141 lib/iov_iter.c:55 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:300 ./include/linux/iov_iter.h:328 lib/iov_iter.c:249 lib/iov_iter.c:260) [ 532.296179][ T1586] ? __create_object (mm/kmemleak.c:771) [ 532.296186][ T1586] ? __lock_release (kernel/locking/lockdep.c:5536) [ 532.296193][ T1586] devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 532.296198][ T1586] ? __pfx_devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 532.296205][ T1586] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) [ 532.296209][ T1586] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) [ 532.296215][ T1586] ? __kmalloc_noprof (mm/slub.c:4341) [ 532.296225][ T1586] devkmsg_write (kernel/printk/printk.c:819) [ 532.296231][ T1586] ? __pfx_devkmsg_write (kernel/printk/printk.c:762) [ 532.296239][ T1586] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 532.296245][ T1586] vfs_write (fs/read_write.c:594 fs/read_write.c:686) [ 532.296251][ T1586] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 532.296257][ T1586] ? __pfx_vfs_write (fs/read_write.c:667) [ 532.296265][ T1586] ? __fget_files (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 fs/file.c:1072) [ 532.296280][ T1586] ksys_write (fs/read_write.c:738) [ 532.296285][ T1586] ? __pfx_ksys_write (fs/read_write.c:728) [ 532.296289][ T1586] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) [ 532.296302][ T1586] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 532.296309][ T1586] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 532.296314][ T1586] RIP: 0033:0x7ff7114b436f [ 532.296321][ T1586] 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 [ 532.296326][ T1586] RSP: 002b:00007ffe518c46e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 532.296332][ T1586] RAX: ffffffffffffffda RBX: 00007ff7112da148 RCX: 00007ff7114b436f [ 532.296336][ T1586] RDX: 00000000000002ee RSI: 0000560c06771fc0 RDI: 000000000000000a [ 532.296338][ T1586] RBP: 00000000000002ee R08: 0000000000000000 R09: 0000000000000002 [ 532.296340][ T1586] R10: 0000000000000002 R11: 0000000000000293 R12: 00007ff7031bae80 Finger prints: print_bad_irq_dependency:check_irq_usage:check_prev_add:validate_chain:__lock_acquire