====================================== | [ 152.072909][ T513] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 152.073105][ T513] | [ 152.073186][ T513] | [ 152.073186][ T513] stack backtrace: [ 152.073701][ T513] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 152.074138][ T513] Call Trace: [ 152.074282][ T513] [ 152.074365][ T513] dump_stack_lvl (lib/dump_stack.c:117) [ 152.074528][ T513] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 152.074687][ T513] ? 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) [ 152.074933][ T513] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 152.075130][ T513] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 152.075288][ T513] ? __bfs (kernel/locking/lockdep.c:1787) [ 152.075405][ T513] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 152.075645][ T513] check_irq_usage (kernel/locking/lockdep.c:2871) [ 152.075804][ T513] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 152.075959][ T513] ? __bfs (kernel/locking/lockdep.c:1787) [ 152.076076][ T513] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 152.076235][ T513] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 152.076479][ T513] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 152.076635][ T513] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 152.076794][ T513] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 152.076950][ T513] check_prev_add (kernel/locking/lockdep.c:3138) [ 152.077199][ T513] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 152.077357][ T513] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 152.077516][ T513] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 152.077634][ T513] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 152.077879][ T513] ? 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) [ 152.078037][ T513] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 152.078159][ T513] __lock_acquire (kernel/locking/lockdep.c:5137) [ 152.078329][ T513] ? backlog_napi_setup (net/core/dev.c:11820) [ 152.078488][ T513] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 152.078741][ T513] ? __get_task_comm (fs/exec.c:1234) [ 152.078898][ T513] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 152.079018][ T513] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 152.079174][ T513] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 152.079333][ T513] ? __get_task_comm (fs/exec.c:1234) [ 152.079489][ T513] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 152.079646][ T513] ? __get_task_comm (fs/exec.c:1234) [ 152.079802][ T513] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 152.079960][ T513] ? __get_task_comm (fs/exec.c:1234) [ 152.080120][ T513] __get_task_comm (fs/exec.c:1234) [ 152.080277][ T513] ref_tracker_alloc (lib/ref_tracker.c:217) [ 152.080437][ T513] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 152.080594][ T513] ? __lock_release (kernel/locking/lockdep.c:5430) [ 152.080840][ T513] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 152.081034][ T513] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 152.081192][ T513] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 152.081349][ T513] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 152.081597][ T513] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 152.081755][ T513] ? __dev_notify_flags (net/core/dev.c:8800) [ 152.081913][ T513] ? dev_change_flags (net/core/dev.c:8835) [ 152.082068][ T513] ? do_setlink (net/core/rtnetlink.c:2884) [ 152.082327][ T513] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 152.082485][ T513] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 152.082641][ T513] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 152.082808][ T513] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 152.083053][ T513] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 152.083211][ T513] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 152.083366][ T513] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 152.083520][ T513] ? ___sys_sendmsg (net/socket.c:2640) [ 152.083677][ T513] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 152.083917][ T513] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 152.084112][ T513] rt6_disable_ip (net/ipv6/route.c:4910) [ 152.084269][ T513] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 152.084423][ T513] ? 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) [ 152.084655][ T513] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 152.084800][ T513] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 152.084945][ T513] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 152.085125][ T513] addrconf_notify (net/ipv6/addrconf.c:3811) [ 152.085356][ T513] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 152.085502][ T513] __dev_notify_flags (net/core/dev.c:8800) [ 152.085645][ T513] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 152.085787][ T513] ? __dev_change_flags (./include/linux/list.h:111 ./include/linux/list.h:215 ./include/linux/list.h:229 net/core/dev.c:1554 net/core/dev.c:8754) [ 152.086019][ T513] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 152.086164][ T513] dev_change_flags (net/core/dev.c:8835) [ 152.086320][ T513] do_setlink (net/core/rtnetlink.c:2884) [ 152.086465][ T513] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 152.086703][ T513] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 152.086847][ T513] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 152.086990][ T513] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 152.087134][ T513] ? __kernel_text_address (kernel/extable.c:79) [ 152.087283][ T513] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 152.087428][ T513] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 152.087606][ T513] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 152.087753][ T513] ? stack_trace_save (kernel/stacktrace.c:123) [ 152.087898][ T513] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 152.088041][ T513] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 152.088188][ T513] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 152.088301][ T513] ? kasan_save_stack (mm/kasan/common.c:49) [ 152.088445][ T513] ? kasan_save_stack (mm/kasan/common.c:48) [ 152.088676][ T513] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 152.088818][ T513] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 152.088960][ T513] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 152.089103][ T513] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 152.089335][ T513] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 152.089477][ T513] ? __nla_validate_parse (lib/nlattr.c:619) [ 152.089619][ T513] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 152.089762][ T513] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 152.089993][ T513] ? ___sys_sendmsg (net/socket.c:2640) [ 152.090138][ T513] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 152.090303][ T513] ? 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) [ 152.090470][ T513] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 152.090626][ T513] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 152.090918][ T513] ? __create_object (mm/kmemleak.c:756) [ 152.091074][ T513] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 152.091232][ T513] rtnl_newlink (net/core/rtnetlink.c:3728) [ 152.091351][ T513] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 152.091505][ T513] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 152.091660][ T513] ? 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) [ 152.091816][ T513] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 152.091935][ T513] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 152.092088][ T513] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 152.092244][ T513] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 152.092398][ T513] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 152.092552][ T513] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 152.092722][ T513] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 152.093051][ T513] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 152.093207][ T513] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 152.093365][ T513] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 152.093519][ T513] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 152.093774][ T513] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 152.093935][ T513] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 152.094105][ T513] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 152.094276][ T513] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 152.094435][ T513] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 152.094593][ T513] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 152.094739][ T513] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 152.094883][ T513] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 152.095027][ T513] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 152.095172][ T513] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 152.095366][ T513] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 152.095515][ T513] ___sys_sendmsg (net/socket.c:2640) [ 152.095755][ T513] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 152.095900][ T513] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 152.096043][ T513] ? __lock_release (kernel/locking/lockdep.c:5430) [ 152.096190][ T513] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 152.096366][ T513] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 152.096512][ T513] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 152.096656][ T513] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 152.096835][ T513] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 152.096981][ T513] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 152.097124][ T513] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 152.097273][ T513] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 152.097418][ T513] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 152.097687][ T513] RIP: 0033:0x7f0a039847b7 [ 152.097843][ T513] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 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 b9 jmp 0xffffffffffffffc9 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 2e 00 00 00 mov $0x2e,%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: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) 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: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 152.098364][ T513] RSP: 002b:00007ffc2e820078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 152.098584][ T513] RAX: ffffffffffffffda RBX: 00007ffc2e8207a0 RCX: 00007f0a039847b7 [ 152.098801][ T513] RDX: 0000000000000000 RSI: 00007ffc2e8200e0 RDI: 0000000000000005 [ 152.099020][ T513] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 152.099241][ T513] R10: 00007f0a03842ef8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add