====================================== | [ 33.554350][ T338] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 33.554642][ T338] | [ 33.554724][ T338] | [ 33.554724][ T338] stack backtrace: [ 33.555269][ T338] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.555627][ T338] Call Trace: [ 33.555847][ T338] [ 33.555927][ T338] dump_stack_lvl (lib/dump_stack.c:117) [ 33.556086][ T338] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 33.556334][ T338] ? 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) [ 33.556490][ T338] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 33.556681][ T338] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 33.556834][ T338] ? __bfs (kernel/locking/lockdep.c:1787) [ 33.557047][ T338] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 33.557197][ T338] check_irq_usage (kernel/locking/lockdep.c:2871) [ 33.557351][ T338] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 33.557501][ T338] ? __bfs (kernel/locking/lockdep.c:1787) [ 33.557614][ T338] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 33.557764][ T338] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 33.557915][ T338] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 33.558063][ T338] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 33.558215][ T338] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 33.558480][ T338] check_prev_add (kernel/locking/lockdep.c:3138) [ 33.558627][ T338] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 33.558795][ T338] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 33.558962][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.559167][ T338] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 33.559333][ T338] ? 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) [ 33.559481][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.559599][ T338] __lock_acquire (kernel/locking/lockdep.c:5137) [ 33.559748][ T338] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 33.559989][ T338] ? __get_task_comm (fs/exec.c:1234) [ 33.560135][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.560249][ T338] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 33.560398][ T338] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 33.560546][ T338] ? __get_task_comm (fs/exec.c:1234) [ 33.560690][ T338] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 33.560834][ T338] ? __get_task_comm (fs/exec.c:1234) [ 33.560984][ T338] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 33.561228][ T338] ? __get_task_comm (fs/exec.c:1234) [ 33.561375][ T338] __get_task_comm (fs/exec.c:1234) [ 33.561522][ T338] ref_tracker_alloc (lib/ref_tracker.c:217) [ 33.561671][ T338] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 33.561830][ T338] ? __lock_release (kernel/locking/lockdep.c:5430) [ 33.562076][ T338] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 33.562260][ T338] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 33.562406][ T338] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 33.562553][ T338] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 33.562700][ T338] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 33.562853][ T338] ? __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 33.563004][ T338] ? netdev_master_upper_dev_link (net/core/dev.c:7937) [ 33.563191][ T338] ? vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 33.563356][ T338] ? rtnl_newlink_create (net/core/rtnetlink.c:3512) [ 33.563505][ T338] ? __rtnl_newlink (net/core/rtnetlink.c:3714) [ 33.563655][ T338] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 33.563808][ T338] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 33.564070][ T338] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 33.564226][ T338] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 33.564375][ T338] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 33.564526][ T338] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 33.564774][ T338] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 33.564923][ T338] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 33.565106][ T338] rt6_disable_ip (net/ipv6/route.c:4910) [ 33.565253][ T338] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 33.565499][ T338] ? 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) [ 33.565670][ T338] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 33.565820][ T338] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 33.565990][ T338] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 33.566200][ T338] addrconf_notify (net/ipv6/addrconf.c:3811) [ 33.566487][ T338] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 33.566644][ T338] __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 33.566803][ T338] ? __pfx___netdev_upper_dev_link (net/core/dev.c:7821) [ 33.567093][ T338] ? __dev_notify_flags (net/core/dev.c:8800) [ 33.567243][ T338] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 33.567391][ T338] ? __dev_change_flags (net/core/dev.c:8756) [ 33.567548][ T338] netdev_master_upper_dev_link (net/core/dev.c:7937) [ 33.567792][ T338] ? __pfx_netdev_master_upper_dev_link (net/core/dev.c:7931) [ 33.567979][ T338] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:81 kernel/locking/mutex.c:91) [ 33.568128][ T338] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 33.568375][ T338] ? netdev_master_upper_dev_get (net/core/dev.c:7024) [ 33.568559][ T338] vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 33.568711][ T338] rtnl_newlink_create (net/core/rtnetlink.c:3512) [ 33.568863][ T338] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3445) [ 33.569115][ T338] __rtnl_newlink (net/core/rtnetlink.c:3714) [ 33.569270][ T338] ? 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) [ 33.569445][ T338] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 33.569601][ T338] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 33.569954][ T338] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.570110][ T338] rtnl_newlink (net/core/rtnetlink.c:3728) [ 33.570224][ T338] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 33.570387][ T338] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 33.570640][ T338] ? 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) [ 33.570811][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.570927][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 33.571185][ T338] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 33.571359][ T338] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 33.571510][ T338] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 33.571682][ T338] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 33.571837][ T338] ? 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) [ 33.572114][ T338] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 33.572265][ T338] ? 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) [ 33.572463][ T338] ? 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) [ 33.572713][ T338] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 33.572875][ T338] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 33.573049][ T338] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 33.573297][ T338] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 33.573446][ T338] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 33.573601][ T338] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 33.573751][ T338] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 33.574001][ T338] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.574157][ T338] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 33.574305][ T338] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 33.574452][ T338] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 33.574635][ T338] ? __lock_release (kernel/locking/lockdep.c:5430) [ 33.574783][ T338] ? do_fault_around (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 mm/memory.c:4855) [ 33.574937][ T338] ___sys_sendmsg (net/socket.c:2640) [ 33.575091][ T338] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 33.575252][ T338] ? 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) [ 33.575501][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.575631][ T338] ? __pfx_filemap_map_pages (mm/filemap.c:3565) [ 33.575791][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 33.575972][ T338] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) [ 33.576122][ T338] ? 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) [ 33.576363][ T338] ? reacquire_held_locks (kernel/locking/lockdep.c:5279) [ 33.576529][ T338] ? 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) [ 33.576678][ T338] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.576835][ T338] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 33.577082][ T338] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 33.577231][ T338] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2749 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3317 kernel/locking/rwsem.c:1347) [ 33.577388][ T338] ? do_user_addr_fault (./include/linux/rcupdate.h:815 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364) [ 33.577538][ T338] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.577692][ T338] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 33.577879][ T338] RIP: 0033:0x7ff6dfd657b7 [ 33.578033][ T338] 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) [ 33.578662][ T338] RSP: 002b:00007ffd33eb4af8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.578889][ T338] RAX: ffffffffffffffda RBX: 00007ffd33eb5220 RCX: 00007ff6dfd657b7 [ 33.579204][ T338] RDX: 0000000000000000 RSI: 00007ffd33eb4b60 RDI: 0000000000000005 [ 33.579430][ T338] RBP: 0000000000000002 R08: 0000000000000054 R09: 0000000000000000 [ 33.579662][ T338] R10: 00007ff6dfdb4ac0 R11: 0000000000000246 R12: 00007ffd33eb5268 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add