====================================== | [ 128.109857][ T1378] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 128.110049][ T1378] | [ 128.110127][ T1378] | [ 128.110127][ T1378] stack backtrace: [ 128.110628][ T1378] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 128.111042][ T1378] Call Trace: [ 128.111168][ T1378] [ 128.111258][ T1378] dump_stack_lvl (lib/dump_stack.c:117) [ 128.111419][ T1378] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 128.111572][ T1378] ? 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) [ 128.111809][ T1378] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 128.112003][ T1378] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 128.112154][ T1378] ? __bfs (kernel/locking/lockdep.c:1787) [ 128.112269][ T1378] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 128.112502][ T1378] check_irq_usage (kernel/locking/lockdep.c:2871) [ 128.112654][ T1378] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 128.112803][ T1378] ? __bfs (kernel/locking/lockdep.c:1787) [ 128.112916][ T1378] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 128.113068][ T1378] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 128.113317][ T1378] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 128.113473][ T1378] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 128.113625][ T1378] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 128.113871][ T1378] check_prev_add (kernel/locking/lockdep.c:3138) [ 128.114025][ T1378] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 128.114178][ T1378] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 128.114332][ T1378] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 128.114447][ T1378] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 128.114599][ T1378] ? 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) [ 128.114745][ T1378] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 128.114864][ T1378] __lock_acquire (kernel/locking/lockdep.c:5137) [ 128.115016][ T1378] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 128.115162][ T1378] ? __get_task_comm (fs/exec.c:1234) [ 128.115408][ T1378] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 128.115533][ T1378] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 128.115695][ T1378] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 128.115845][ T1378] ? __get_task_comm (fs/exec.c:1234) [ 128.116089][ T1378] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 128.116247][ T1378] ? __get_task_comm (fs/exec.c:1234) [ 128.116404][ T1378] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 128.116558][ T1378] ? __get_task_comm (fs/exec.c:1234) [ 128.116716][ T1378] __get_task_comm (fs/exec.c:1234) [ 128.116961][ T1378] ref_tracker_alloc (lib/ref_tracker.c:217) [ 128.117104][ T1378] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 128.117254][ T1378] ? __lock_release (kernel/locking/lockdep.c:5430) [ 128.117406][ T1378] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 128.117601][ T1378] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 128.117747][ T1378] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 128.117905][ T1378] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 128.118061][ T1378] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 128.118386][ T1378] ? dev_close_many (net/core/dev.c:1571) [ 128.118538][ T1378] ? unregister_netdevice_many_notify (net/core/dev.c:11146) [ 128.118722][ T1378] ? rtnl_dellink (net/core/rtnetlink.c:3238 net/core/rtnetlink.c:3288) [ 128.118873][ T1378] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 128.119105][ T1378] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 128.119346][ T1378] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 128.119500][ T1378] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 128.119654][ T1378] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 128.119805][ T1378] ? __x64_sys_sendto (net/socket.c:2199) [ 128.119955][ T1378] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 128.120192][ T1378] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 128.120377][ T1378] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 128.120533][ T1378] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 128.120730][ T1378] rt6_disable_ip (net/ipv6/route.c:4910) [ 128.120873][ T1378] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 128.121116][ T1378] ? 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) [ 128.121271][ T1378] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 128.121424][ T1378] ? __pfx_snprintf (lib/vsprintf.c:2954) [ 128.121580][ T1378] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 128.121734][ T1378] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 128.122021][ T1378] addrconf_notify (net/ipv6/addrconf.c:3811) [ 128.122167][ T1378] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 128.122322][ T1378] dev_close_many (net/core/dev.c:1571) [ 128.122473][ T1378] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 128.122701][ T1378] ? __pfx_dev_close_many (net/core/dev.c:1558) [ 128.122948][ T1378] ? __netdev_upper_dev_unlink (net/core/dev.c:7945 (discriminator 11)) [ 128.123138][ T1378] unregister_netdevice_many_notify (net/core/dev.c:11146) [ 128.123327][ T1378] ? unregister_netdevice_queue (net/core/dev.c:11098) [ 128.123517][ T1378] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11097) [ 128.123712][ T1378] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11113) [ 128.123907][ T1378] ? netdev_upper_dev_unlink (net/core/dev.c:7984) [ 128.124059][ T1378] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:7984) [ 128.124424][ T1378] rtnl_dellink (net/core/rtnetlink.c:3238 net/core/rtnetlink.c:3288) [ 128.124575][ T1378] ? 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) [ 128.124726][ T1378] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3244) [ 128.124887][ T1378] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) [ 128.125133][ T1378] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) [ 128.125286][ T1378] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 128.125446][ T1378] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) [ 128.125598][ T1378] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 128.125844][ T1378] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 128.125998][ T1378] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 128.126153][ T1378] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 128.126309][ T1378] ? 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) [ 128.126631][ T1378] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 128.126750][ T1378] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 128.126903][ T1378] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 128.127058][ T1378] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 128.127212][ T1378] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 128.127443][ T1378] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 128.127595][ T1378] ? 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) [ 128.127753][ T1378] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 128.127904][ T1378] ? 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) [ 128.128136][ T1378] ? 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) [ 128.128285][ T1378] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 128.128436][ T1378] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 128.128588][ T1378] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 128.128821][ T1378] ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:835) [ 128.128971][ T1378] ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:858) [ 128.129122][ T1378] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 128.129272][ T1378] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 128.129505][ T1378] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 128.129656][ T1378] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 128.129807][ T1378] ? __pfx___sys_sendto (net/socket.c:2161) [ 128.129956][ T1378] ? __lock_release (kernel/locking/lockdep.c:5430) [ 128.130108][ T1378] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 128.130347][ T1378] ? fd_install (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:894 fs/file.c:626) [ 128.130501][ T1378] ? fd_install (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:896 fs/file.c:626) [ 128.130652][ T1378] ? __sys_socket (net/socket.c:497 net/socket.c:1715) [ 128.130803][ T1378] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 128.131074][ T1378] ? __pfx___sys_socket (net/socket.c:1702) [ 128.131225][ T1378] __x64_sys_sendto (net/socket.c:2199) [ 128.131376][ T1378] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 128.131569][ T1378] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 128.131813][ T1378] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 128.132008][ T1378] RIP: 0033:0x7fdc1042a700 [ 128.132169][ T1378] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 All code ======== 0: ff (bad) 1: ff 64 89 02 jmp *0x2(%rcx,%rcx,4) 5: eb bd jmp 0xffffffffffffffc4 7: 0f 1f 00 nopl (%rax) a: f3 0f 1e fa endbr64 e: 41 89 ca mov %ecx,%r10d 11: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 18: 00 19: 85 c0 test %eax,%eax 1b: 75 1d jne 0x3a 1d: 45 31 c9 xor %r9d,%r9d 20: 45 31 c0 xor %r8d,%r8d 23: b8 2c 00 00 00 mov $0x2c,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 68 ja 0x9a 32: c3 ret 33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3a: 41 54 push %r12 3c: 48 83 ec 20 sub $0x20,%rsp Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 68 ja 0x70 8: c3 ret 9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 10: 41 54 push %r12 12: 48 83 ec 20 sub $0x20,%rsp [ 128.132889][ T1378] RSP: 002b:00007ffcdc838808 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 128.133126][ T1378] RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007fdc1042a700 [ 128.133458][ T1378] RDX: 0000000000000030 RSI: 00007ffcdc838810 RDI: 0000000000000005 [ 128.133704][ T1378] RBP: 0000000000404780 R08: 0000000000000000 R09: 0000000000000000 [ 128.133927][ T1378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add