====================================== | [ 34.166021][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 34.166211][ T344] | [ 34.166290][ T344] | [ 34.166290][ T344] stack backtrace: [ 34.166702][ T344] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.167043][ T344] Call Trace: [ 34.167157][ T344] [ 34.167239][ T344] dump_stack_lvl (lib/dump_stack.c:117) [ 34.167395][ T344] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 34.167550][ T344] ? 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) [ 34.167702][ T344] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 34.167888][ T344] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 34.168037][ T344] ? __bfs (kernel/locking/lockdep.c:1787) [ 34.168150][ T344] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 34.168403][ T344] check_irq_usage (kernel/locking/lockdep.c:2871) [ 34.168554][ T344] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 34.168709][ T344] ? __bfs (kernel/locking/lockdep.c:1787) [ 34.168825][ T344] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 34.169079][ T344] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 34.169230][ T344] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 34.169385][ T344] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 34.169537][ T344] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 34.169686][ T344] check_prev_add (kernel/locking/lockdep.c:3138) [ 34.169842][ T344] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 34.169993][ T344] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 34.170147][ T344] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.170259][ T344] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 34.170408][ T344] ? 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) [ 34.170556][ T344] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.170671][ T344] __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.170824][ T344] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 34.170974][ T344] ? __get_task_comm (fs/exec.c:1234) [ 34.171228][ T344] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.171342][ T344] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 34.171493][ T344] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 34.171644][ T344] ? __get_task_comm (fs/exec.c:1234) [ 34.171793][ T344] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 34.171942][ T344] ? __get_task_comm (fs/exec.c:1234) [ 34.172093][ T344] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 34.172256][ T344] ? __get_task_comm (fs/exec.c:1234) [ 34.172409][ T344] __get_task_comm (fs/exec.c:1234) [ 34.172564][ T344] ref_tracker_alloc (lib/ref_tracker.c:217) [ 34.172719][ T344] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 34.172870][ T344] ? __lock_release (kernel/locking/lockdep.c:5430) [ 34.173020][ T344] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 34.173305][ T344] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 34.173454][ T344] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 34.173603][ T344] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 34.173751][ T344] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 34.173904][ T344] ? __dev_notify_flags (net/core/dev.c:8800) [ 34.174053][ T344] ? dev_change_flags (net/core/dev.c:8835) [ 34.174200][ T344] ? cycle_netdev (drivers/net/vrf.c:1092) vrf [ 34.174352][ T344] ? vrf_add_slave (drivers/net/vrf.c:1123 drivers/net/vrf.c:1142) vrf [ 34.174599][ T344] ? rtnl_newlink_create (net/core/rtnetlink.c:3512) [ 34.174748][ T344] ? __rtnl_newlink (net/core/rtnetlink.c:3714) [ 34.174895][ T344] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 34.175044][ T344] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 34.175295][ T344] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 34.175446][ T344] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 34.175594][ T344] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 34.175742][ T344] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 34.175986][ T344] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 34.176175][ T344] rt6_disable_ip (net/ipv6/route.c:4910) [ 34.176324][ T344] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 34.176473][ T344] ? 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) [ 34.176718][ T344] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 34.176874][ T344] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 34.177027][ T344] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 34.177222][ T344] addrconf_notify (net/ipv6/addrconf.c:3811) [ 34.177473][ T344] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 34.177625][ T344] __dev_notify_flags (net/core/dev.c:8800) [ 34.177776][ T344] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 34.177925][ T344] ? __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) [ 34.178081][ T344] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 34.178334][ T344] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 34.178485][ T344] ? __dev_change_flags (net/core/dev.c:8756) [ 34.178634][ T344] dev_change_flags (net/core/dev.c:8835) [ 34.178784][ T344] cycle_netdev (drivers/net/vrf.c:1092) vrf [ 34.179031][ T344] vrf_add_slave (drivers/net/vrf.c:1123 drivers/net/vrf.c:1142) vrf [ 34.179185][ T344] rtnl_newlink_create (net/core/rtnetlink.c:3512) [ 34.179334][ T344] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3445) [ 34.179489][ T344] __rtnl_newlink (net/core/rtnetlink.c:3714) [ 34.179735][ T344] ? 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) [ 34.179884][ T344] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 34.180036][ T344] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 34.180222][ T344] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 34.180474][ T344] rtnl_newlink (net/core/rtnetlink.c:3728) [ 34.180587][ T344] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 34.180736][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 34.180895][ T344] ? 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) [ 34.181045][ T344] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.181255][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.181405][ T344] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 34.181555][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 34.181706][ T344] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 34.181950][ T344] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 34.182104][ T344] ? 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) [ 34.182262][ T344] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 34.182413][ T344] ? 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) [ 34.182656][ T344] ? 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) [ 34.182806][ T344] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 34.182956][ T344] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 34.183109][ T344] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 34.183260][ T344] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 34.183504][ T344] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 34.183660][ T344] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 34.183812][ T344] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 34.183962][ T344] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 34.184217][ T344] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 34.184369][ T344] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 34.184520][ T344] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 34.184708][ T344] ? __lock_release (kernel/locking/lockdep.c:5430) [ 34.184864][ T344] ? do_fault_around (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 mm/memory.c:4855) [ 34.185019][ T344] ___sys_sendmsg (net/socket.c:2640) [ 34.185171][ T344] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 34.185321][ T344] ? 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) [ 34.185566][ T344] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.185680][ T344] ? __pfx_filemap_map_pages (mm/filemap.c:3565) [ 34.185834][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.185989][ T344] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) [ 34.186140][ T344] ? 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) [ 34.186387][ T344] ? reacquire_held_locks (kernel/locking/lockdep.c:5279) [ 34.186546][ T344] ? 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) [ 34.186696][ T344] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 34.186851][ T344] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 34.187103][ T344] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 34.187260][ T344] ? __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) [ 34.187413][ T344] ? do_user_addr_fault (./include/linux/rcupdate.h:815 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364) [ 34.187563][ T344] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 34.187715][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 34.187907][ T344] RIP: 0033:0x7f20e6c5f7b7 [ 34.188065][ T344] 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) [ 34.188599][ T344] RSP: 002b:00007ffefdc69058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.188829][ T344] RAX: ffffffffffffffda RBX: 00007ffefdc69780 RCX: 00007f20e6c5f7b7 [ 34.189166][ T344] RDX: 0000000000000000 RSI: 00007ffefdc690c0 RDI: 0000000000000005 [ 34.189393][ T344] RBP: 0000000000000002 R08: 0000000000000054 R09: 0000000000000000 [ 34.189624][ T344] R10: 00007f20e6caeac0 R11: 0000000000000246 R12: 00007ffefdc697c8 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add