====================================== | [ 158.324744][ T1576] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) | [ 158.324843][ T1576] | [ 158.324883][ T1576] | [ 158.324883][ T1576] stack backtrace: [ 158.325033][ T1576] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 158.325035][ T1576] Call Trace: [ 158.325037][ T1576] [ 158.325038][ T1576] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 158.325042][ T1576] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125) [ 158.325045][ T1576] mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294) [ 158.325048][ T1576] mark_lock (kernel/locking/lockdep.c:4753) [ 158.325050][ T1576] mark_usage (kernel/locking/lockdep.c:4666) [ 158.325051][ T1576] __lock_acquire (kernel/locking/lockdep.c:5191) [ 158.325053][ T1576] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 158.325054][ T1576] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 158.325056][ T1576] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 158.325059][ T1576] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 158.325061][ T1576] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 158.325063][ T1576] _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1)) [ 158.325064][ T1576] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 158.325066][ T1576] __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 158.325068][ T1576] addrconf_leave_anycast (net/ipv6/addrconf.c:2289) [ 158.325069][ T1576] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 158.325072][ T1576] ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360) [ 158.325074][ T1576] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 158.325076][ T1576] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 158.325078][ T1576] dev_forward_change (net/ipv6/addrconf.c:844) [ 158.325080][ T1576] ? addrconf_fixup_forwarding (./include/linux/rtnetlink.h:140 net/ipv6/addrconf.c:878) [ 158.325082][ T1576] ? addrconf_sysctl_proxy_ndp (net/ipv6/addrconf.c:6504) [ 158.325085][ T1576] addrconf_fixup_forwarding (net/ipv6/addrconf.c:868 net/ipv6/addrconf.c:904) [ 158.325087][ T1576] addrconf_sysctl_forward (net/ipv6/addrconf.c:6373) [ 158.325089][ T1576] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:906) [ 158.325091][ T1576] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:906) [ 158.325093][ T1576] ? __kvmalloc_node_noprof (mm/slub.c:5297 mm/slub.c:6833) [ 158.325097][ T1576] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:583 (discriminator 7)) [ 158.325099][ T1576] proc_sys_call_handler (fs/proc/proc_sysctl.c:600) [ 158.325101][ T1576] ? proc_sys_lookup (fs/proc/proc_sysctl.c:543 (discriminator 3)) [ 158.325103][ T1576] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5)) [ 158.325106][ T1576] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 158.325107][ T1576] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 158.325109][ T1576] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 158.325111][ T1576] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:591) [ 158.325113][ T1576] new_sync_write (fs/read_write.c:595) [ 158.325114][ T1576] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 158.325116][ T1576] ? new_sync_read (./include/linux/ioprio.h:41) [ 158.325118][ T1576] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 158.325119][ T1576] ? ksys_write (fs/read_write.c:740) [ 158.325121][ T1576] vfs_write (fs/read_write.c:688) [ 158.325123][ T1576] ksys_write (fs/read_write.c:740) [ 158.325124][ T1576] ? __ia32_sys_read (fs/read_write.c:724) [ 158.325126][ T1576] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 158.325127][ T1576] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 158.325129][ T1576] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 158.325131][ T1576] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 158.325134][ T1576] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 158.325135][ T1576] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 158.325137][ T1576] RIP: 0033:0x7f4b229a108e [ 158.325140][ T1576] Code: 4d 89 d8 e8 94 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 94 bd 00 00 call 0xbd9c 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 [ 158.325142][ T1576] RSP: 002b:00007ffce28dd5f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 158.325145][ T1576] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4b229a108e [ 158.325146][ T1576] RDX: 0000000000000002 RSI: 000055685c9e74b0 RDI: 0000000000000005 [ 158.325147][ T1576] RBP: 00007ffce28dd600 R08: 0000000000000000 R09: 0000000000000000 [ 158.325148][ T1576] R10: 0000000000000000 R11: 0000000000000202 R12: 000055685c9e95e0 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock