====================================== | [ 39.974441][ T404] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 39.974615][ T404] | [ 39.974686][ T404] | [ 39.974686][ T404] stack backtrace: [ 39.975158][ T404] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 39.975464][ T404] Call Trace: [ 39.975575][ T404] [ 39.975656][ T404] dump_stack_lvl (lib/dump_stack.c:117) [ 39.975800][ T404] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 39.975946][ T404] ? 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) [ 39.976087][ T404] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 39.976344][ T404] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 39.976482][ T404] ? __bfs (kernel/locking/lockdep.c:1787) [ 39.976588][ T404] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 39.976725][ T404] check_irq_usage (kernel/locking/lockdep.c:2871) [ 39.976948][ T404] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 39.977087][ T404] ? __bfs (kernel/locking/lockdep.c:1787) [ 39.977191][ T404] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 39.977330][ T404] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 39.977475][ T404] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 39.977615][ T404] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 39.977753][ T404] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 39.977863][ T404] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 39.978000][ T404] check_prev_add (kernel/locking/lockdep.c:3138) [ 39.978220][ T404] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 39.978358][ T404] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 39.978497][ T404] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 39.978602][ T404] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 39.978741][ T404] ? 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) [ 39.978958][ T404] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 39.979068][ T404] __lock_acquire (kernel/locking/lockdep.c:5137) [ 39.979210][ T404] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 39.979349][ T404] ? __get_task_comm (fs/exec.c:1234) [ 39.979578][ T404] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 39.979684][ T404] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 39.979828][ T404] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 39.979974][ T404] ? __get_task_comm (fs/exec.c:1234) [ 39.980121][ T404] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 39.980344][ T404] ? __get_task_comm (fs/exec.c:1234) [ 39.980483][ T404] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 39.980622][ T404] ? __get_task_comm (fs/exec.c:1234) [ 39.980761][ T404] __get_task_comm (fs/exec.c:1234) [ 39.980985][ T404] ref_tracker_alloc (lib/ref_tracker.c:217) [ 39.981133][ T404] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 39.981271][ T404] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 39.981416][ T404] ? netdev_get_by_index (net/core/dev.c:914) [ 39.981636][ T404] ? fib6_nh_init (net/ipv6/route.c:3541) [ 39.981776][ T404] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 39.981918][ T404] ? addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 39.982068][ T404] ? __ipv6_dev_ac_inc (net/ipv6/anycast.c:309) [ 39.982209][ T404] ? addrconf_join_anycast (net/ipv6/addrconf.c:2264) [ 39.982427][ T404] ? dev_forward_change (./include/linux/list.h:373 net/ipv6/addrconf.c:833) [ 39.982565][ T404] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:854 net/ipv6/addrconf.c:898) [ 39.982739][ T404] ? addrconf_sysctl_forward (net/ipv6/addrconf.c:6329) [ 39.982876][ T404] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:595) [ 39.983110][ T404] ? vfs_write (./include/linux/fs.h:2108 fs/read_write.c:497 fs/read_write.c:590) [ 39.983247][ T404] ? ksys_write (fs/read_write.c:643) [ 39.983387][ T404] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 39.983525][ T404] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 39.983702][ T404] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 39.983841][ T404] netdev_get_by_index (net/core/dev.c:914) [ 39.984025][ T404] fib6_nh_init (net/ipv6/route.c:3541) [ 39.984168][ T404] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 39.984425][ T404] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 39.984564][ T404] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 39.984707][ T404] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 39.984846][ T404] ? __kmalloc (mm/slub.c:3980) [ 39.985077][ T404] ? fib6_get_table (net/ipv6/ip6_fib.c:295) [ 39.985216][ T404] ip6_route_info_create (net/ipv6/route.c:3808) [ 39.985357][ T404] ? __lock_release (kernel/locking/lockdep.c:5430) [ 39.985498][ T404] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 39.985670][ T404] ? addrconf_f6i_alloc (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/l3mdev.h:138 net/ipv6/route.c:4564) [ 39.985809][ T404] addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 39.985948][ T404] ? __pfx_addrconf_f6i_alloc (net/ipv6/route.c:4562) [ 39.986090][ T404] ? do_raw_write_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qrwlock.h:98 kernel/locking/spinlock_debug.c:211) [ 39.986312][ T404] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 39.986448][ T404] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 39.986590][ T404] __ipv6_dev_ac_inc (net/ipv6/anycast.c:309) [ 39.986732][ T404] addrconf_join_anycast (net/ipv6/addrconf.c:2264) [ 39.986954][ T404] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 39.987062][ T404] ? __pfx_addrconf_join_anycast (net/ipv6/addrconf.c:2256) [ 39.987236][ T404] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 39.987409][ T404] dev_forward_change (./include/linux/list.h:373 net/ipv6/addrconf.c:833) [ 39.987551][ T404] ? __pfx_dev_forward_change (net/ipv6/addrconf.c:803) [ 39.987694][ T404] addrconf_fixup_forwarding (net/ipv6/addrconf.c:854 net/ipv6/addrconf.c:898) [ 39.987836][ T404] addrconf_sysctl_forward (net/ipv6/addrconf.c:6329) [ 39.987977][ T404] ? __pfx_addrconf_sysctl_forward (net/ipv6/addrconf.c:6312) [ 39.988234][ T404] ? __pfx_addrconf_sysctl_forward (net/ipv6/addrconf.c:6312) [ 39.988413][ T404] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 39.988552][ T404] ? __kmalloc_node (mm/slub.c:3974) [ 39.988691][ T404] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:578) [ 39.988914][ T404] proc_sys_call_handler (fs/proc/proc_sysctl.c:595) [ 39.989060][ T404] ? __pfx_proc_sys_call_handler (fs/proc/proc_sysctl.c:550) [ 39.989233][ T404] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 39.989374][ T404] vfs_write (./include/linux/fs.h:2108 fs/read_write.c:497 fs/read_write.c:590) [ 39.989480][ T404] ? do_user_addr_fault (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 ./include/linux/mm.h:700 arch/x86/mm/fault.c:1364) [ 39.989704][ T404] ? __pfx_vfs_write (fs/read_write.c:571) [ 39.989843][ T404] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 39.989988][ T404] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 39.990130][ T404] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 39.990275][ T404] ksys_write (fs/read_write.c:643) [ 39.990380][ T404] ? __pfx_ksys_write (fs/read_write.c:633) [ 39.990519][ T404] ? do_user_addr_fault (./include/linux/rcupdate.h:815 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364) [ 39.990658][ T404] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 39.990799][ T404] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 39.990975][ T404] RIP: 0033:0x7fd27a7b0957 [ 39.991126][ T404] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 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 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 39.991626][ T404] RSP: 002b:00007ffd9ae6d6e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.991846][ T404] RAX: ffffffffffffffda RBX: 000055a33dcfa360 RCX: 00007fd27a7b0957 [ 39.992056][ T404] RDX: 0000000000000002 RSI: 000055a33dcfa3a0 RDI: 0000000000000005 [ 39.992266][ T404] RBP: 000055a33dcfc4d0 R08: 0000000000000003 R09: 0000000000000077 [ 39.992478][ T404] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add