====================================== | [ 46.646383][ T411] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 46.646558][ T411] | [ 46.646631][ T411] | [ 46.646631][ T411] stack backtrace: [ 46.647107][ T411] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.647516][ T411] Call Trace: [ 46.647635][ T411] <TASK> [ 46.647711][ T411] dump_stack_lvl (lib/dump_stack.c:117) [ 46.647860][ T411] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 46.648001][ T411] ? 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) [ 46.648237][ T411] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 46.648416][ T411] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 46.648558][ T411] ? __bfs (kernel/locking/lockdep.c:1787) [ 46.648671][ T411] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 46.648921][ T411] check_irq_usage (kernel/locking/lockdep.c:2871) [ 46.649064][ T411] ? get_page_from_freelist (mm/page_alloc.c:1543 mm/page_alloc.c:3317) [ 46.649207][ T411] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 46.649347][ T411] ? __bfs (kernel/locking/lockdep.c:1787) [ 46.649452][ T411] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 46.649593][ T411] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 46.649735][ T411] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 46.649878][ T411] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 46.650041][ T411] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 46.650183][ T411] check_prev_add (kernel/locking/lockdep.c:3138) [ 46.650328][ T411] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 46.650474][ T411] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 46.650617][ T411] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 46.650726][ T411] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 46.650950][ T411] ? 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) [ 46.651093][ T411] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 46.651208][ T411] __lock_acquire (kernel/locking/lockdep.c:5137) [ 46.651360][ T411] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 46.651506][ T411] ? __get_task_comm (fs/exec.c:1234) [ 46.651644][ T411] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 46.651752][ T411] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 46.651930][ T411] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 46.652069][ T411] ? __get_task_comm (fs/exec.c:1234) [ 46.652296][ T411] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 46.652438][ T411] ? __get_task_comm (fs/exec.c:1234) [ 46.652578][ T411] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 46.652718][ T411] ? __get_task_comm (fs/exec.c:1234) [ 46.652939][ T411] __get_task_comm (fs/exec.c:1234) [ 46.653081][ T411] ref_tracker_alloc (lib/ref_tracker.c:217) [ 46.653219][ T411] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 46.653358][ T411] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 46.653581][ T411] ? netdev_get_by_index (net/core/dev.c:914) [ 46.653716][ T411] ? fib6_nh_init (net/ipv6/route.c:3541) [ 46.653859][ T411] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 46.654001][ T411] ? addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 46.654217][ T411] ? __ipv6_dev_ac_inc (net/ipv6/anycast.c:309) [ 46.654358][ T411] ? addrconf_join_anycast (net/ipv6/addrconf.c:2264) [ 46.654497][ T411] ? dev_forward_change (./include/linux/list.h:373 net/ipv6/addrconf.c:833) [ 46.654638][ T411] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:854 net/ipv6/addrconf.c:898) [ 46.654893][ T411] ? addrconf_sysctl_forward (net/ipv6/addrconf.c:6329) [ 46.655033][ T411] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:595) [ 46.655176][ T411] ? vfs_write (./include/linux/fs.h:2108 fs/read_write.c:497 fs/read_write.c:590) [ 46.655317][ T411] ? ksys_write (fs/read_write.c:643) [ 46.655455][ T411] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 46.655596][ T411] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 46.655765][ T411] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 46.655906][ T411] netdev_get_by_index (net/core/dev.c:914) [ 46.656049][ T411] fib6_nh_init (net/ipv6/route.c:3541) [ 46.656278][ T411] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 46.656461][ T411] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 46.656597][ T411] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 46.656737][ T411] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 46.656958][ T411] ? __kmalloc (mm/slub.c:3980) [ 46.657098][ T411] ? fib6_get_table (net/ipv6/ip6_fib.c:295) [ 46.657244][ T411] ip6_route_info_create (net/ipv6/route.c:3808) [ 46.657389][ T411] ? __lock_release (kernel/locking/lockdep.c:5430) [ 46.657529][ T411] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 46.657705][ T411] ? addrconf_f6i_alloc (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/l3mdev.h:138 net/ipv6/route.c:4564) [ 46.657848][ T411] addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 46.657985][ T411] ? __pfx_addrconf_f6i_alloc (net/ipv6/route.c:4562) [ 46.658207][ T411] ? 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) [ 46.658348][ T411] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 46.658484][ T411] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 46.658624][ T411] __ipv6_dev_ac_inc (net/ipv6/anycast.c:309) [ 46.658850][ T411] addrconf_join_anycast (net/ipv6/addrconf.c:2264) [ 46.658993][ T411] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 46.659097][ T411] ? __pfx_addrconf_join_anycast (net/ipv6/addrconf.c:2256) [ 46.659274][ T411] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 46.659524][ T411] dev_forward_change (./include/linux/list.h:373 net/ipv6/addrconf.c:833) [ 46.659667][ T411] ? __pfx_dev_forward_change (net/ipv6/addrconf.c:803) [ 46.659814][ T411] addrconf_fixup_forwarding (net/ipv6/addrconf.c:854 net/ipv6/addrconf.c:898) [ 46.659959][ T411] addrconf_sysctl_forward (net/ipv6/addrconf.c:6329) [ 46.660185][ T411] ? __pfx_addrconf_sysctl_forward (net/ipv6/addrconf.c:6312) [ 46.660360][ T411] ? __pfx_addrconf_sysctl_forward (net/ipv6/addrconf.c:6312) [ 46.660529][ T411] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 46.660665][ T411] ? __kmalloc_node (mm/slub.c:3974) [ 46.660885][ T411] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:578) [ 46.661023][ T411] proc_sys_call_handler (fs/proc/proc_sysctl.c:595) [ 46.661161][ T411] ? __pfx_proc_sys_call_handler (fs/proc/proc_sysctl.c:550) [ 46.661334][ T411] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 46.661480][ T411] vfs_write (./include/linux/fs.h:2108 fs/read_write.c:497 fs/read_write.c:590) [ 46.661584][ T411] ? 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) [ 46.661721][ T411] ? __pfx_vfs_write (fs/read_write.c:571) [ 46.661873][ T411] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 46.662011][ T411] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 46.662232][ T411] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 46.662370][ T411] ksys_write (fs/read_write.c:643) [ 46.662475][ T411] ? __pfx_ksys_write (fs/read_write.c:633) [ 46.662612][ T411] ? do_user_addr_fault (./include/linux/rcupdate.h:815 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364) [ 46.662834][ T411] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 46.662972][ T411] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 46.663146][ T411] RIP: 0033:0x7efd4ae19957 [ 46.663294][ T411] 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 [ 46.663868][ T411] RSP: 002b:00007fffa15a6518 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 46.664252][ T411] RAX: ffffffffffffffda RBX: 00005559e7f46360 RCX: 00007efd4ae19957 [ 46.664460][ T411] RDX: 0000000000000002 RSI: 00005559e7f463a0 RDI: 0000000000000005 [ 46.664668][ T411] RBP: 00005559e7f484d0 R08: 0000000000000003 R09: 0000000000000077 [ 46.664974][ T411] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add