====================================== | [ 97.920753][ T1088] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 97.920944][ T1088] | [ 97.921017][ T1088] | [ 97.921017][ T1088] stack backtrace: [ 97.921612][ T1088] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 97.921951][ T1088] Call Trace: [ 97.922074][ T1088] [ 97.922151][ T1088] dump_stack_lvl (lib/dump_stack.c:117) [ 97.922388][ T1088] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 97.922534][ T1088] ? 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) [ 97.922688][ T1088] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 97.922992][ T1088] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 97.923146][ T1088] ? __bfs (kernel/locking/lockdep.c:1787) [ 97.923264][ T1088] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 97.923407][ T1088] check_irq_usage (kernel/locking/lockdep.c:2871) [ 97.923561][ T1088] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 97.923709][ T1088] ? __bfs (kernel/locking/lockdep.c:1787) [ 97.923826][ T1088] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 97.923978][ T1088] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 97.924128][ T1088] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 97.924294][ T1088] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 97.924457][ T1088] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 97.924695][ T1088] check_prev_add (kernel/locking/lockdep.c:3138) [ 97.924848][ T1088] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 97.925085][ T1088] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 97.925237][ T1088] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 97.925355][ T1088] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 97.925507][ T1088] ? 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) [ 97.925739][ T1088] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 97.925944][ T1088] __lock_acquire (kernel/locking/lockdep.c:5137) [ 97.926102][ T1088] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 97.926352][ T1088] ? __get_task_comm (fs/exec.c:1234) [ 97.926499][ T1088] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 97.926702][ T1088] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 97.926854][ T1088] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 97.927006][ T1088] ? __get_task_comm (fs/exec.c:1234) [ 97.927244][ T1088] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 97.927404][ T1088] ? __get_task_comm (fs/exec.c:1234) [ 97.927562][ T1088] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 97.927713][ T1088] ? __get_task_comm (fs/exec.c:1234) [ 97.927862][ T1088] __get_task_comm (fs/exec.c:1234) [ 97.928095][ T1088] ref_tracker_alloc (lib/ref_tracker.c:217) [ 97.928247][ T1088] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 97.928396][ T1088] ? __lock_release (kernel/locking/lockdep.c:5430) [ 97.928545][ T1088] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 97.928844][ T1088] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 97.928999][ T1088] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 97.929150][ T1088] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 97.929302][ T1088] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 97.929458][ T1088] ? dev_close_many (net/core/dev.c:1571) [ 97.929608][ T1088] ? unregister_netdevice_many_notify (net/core/dev.c:11146) [ 97.929795][ T1088] ? rtnl_dellink (net/core/rtnetlink.c:3238 net/core/rtnetlink.c:3288) [ 97.929945][ T1088] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 97.930095][ T1088] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 97.930248][ T1088] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 97.930401][ T1088] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 97.930551][ T1088] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 97.930705][ T1088] ? __x64_sys_sendto (net/socket.c:2199) [ 97.930857][ T1088] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 97.931012][ T1088] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 97.931204][ T1088] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 97.931356][ T1088] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 97.931632][ T1088] rt6_disable_ip (net/ipv6/route.c:4910) [ 97.931784][ T1088] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 97.931937][ T1088] ? 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) [ 97.932091][ T1088] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 97.932327][ T1088] ? __pfx_snprintf (lib/vsprintf.c:2954) [ 97.932474][ T1088] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 97.932712][ T1088] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 97.932912][ T1088] addrconf_notify (net/ipv6/addrconf.c:3811) [ 97.933064][ T1088] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 97.933214][ T1088] dev_close_many (net/core/dev.c:1571) [ 97.933463][ T1088] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 97.933615][ T1088] ? __pfx_dev_close_many (net/core/dev.c:1558) [ 97.933768][ T1088] ? __netdev_upper_dev_unlink (net/core/dev.c:7945 (discriminator 11)) [ 97.933960][ T1088] unregister_netdevice_many_notify (net/core/dev.c:11146) [ 97.934151][ T1088] ? unregister_netdevice_queue (net/core/dev.c:11098) [ 97.934447][ T1088] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11097) [ 97.934637][ T1088] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11113) [ 97.934832][ T1088] ? netdev_upper_dev_unlink (net/core/dev.c:7984) [ 97.934992][ T1088] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:7984) [ 97.935264][ T1088] rtnl_dellink (net/core/rtnetlink.c:3238 net/core/rtnetlink.c:3288) [ 97.935507][ T1088] ? 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) [ 97.935661][ T1088] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3244) [ 97.935821][ T1088] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) [ 97.935977][ T1088] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) [ 97.936133][ T1088] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 97.936376][ T1088] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) [ 97.936536][ T1088] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 97.936688][ T1088] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 97.936843][ T1088] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 97.937084][ T1088] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 97.937240][ T1088] ? 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) [ 97.937389][ T1088] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 97.937504][ T1088] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 97.937657][ T1088] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 97.937820][ T1088] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 97.938067][ T1088] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 97.938308][ T1088] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 97.938465][ T1088] ? 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) [ 97.938618][ T1088] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 97.938773][ T1088] ? 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) [ 97.938924][ T1088] ? 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) [ 97.939153][ T1088] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 97.939391][ T1088] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 97.939545][ T1088] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 97.939704][ T1088] ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:835) [ 97.939859][ T1088] ? netlink_autobind.isra.0 (net/netlink/af_netlink.c:858) [ 97.940009][ T1088] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 97.940164][ T1088] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 97.940319][ T1088] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 97.940559][ T1088] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) [ 97.940711][ T1088] ? __pfx___sys_sendto (net/socket.c:2161) [ 97.940864][ T1088] ? __lock_release (kernel/locking/lockdep.c:5430) [ 97.941023][ T1088] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 97.941263][ T1088] ? fd_install (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:894 fs/file.c:626) [ 97.941417][ T1088] ? fd_install (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:896 fs/file.c:626) [ 97.941566][ T1088] ? __sys_socket (net/socket.c:497 net/socket.c:1715) [ 97.941719][ T1088] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 97.942005][ T1088] ? __pfx___sys_socket (net/socket.c:1702) [ 97.942162][ T1088] __x64_sys_sendto (net/socket.c:2199) [ 97.942306][ T1088] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 97.942493][ T1088] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 97.942739][ T1088] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 97.942938][ T1088] RIP: 0033:0x7fd007a29700 [ 97.943100][ T1088] 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 [ 97.943819][ T1088] RSP: 002b:00007ffdc3386fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 97.944072][ T1088] RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007fd007a29700 [ 97.944390][ T1088] RDX: 0000000000000030 RSI: 00007ffdc3386fb0 RDI: 0000000000000005 [ 97.944620][ T1088] RBP: 0000000000404780 R08: 0000000000000000 R09: 0000000000000000 [ 97.944851][ T1088] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add