====================================== | [ 34.093577][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 34.093850][ T339] | [ 34.093928][ T339] | [ 34.093928][ T339] stack backtrace: [ 34.094333][ T339] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.094775][ T339] Call Trace: [ 34.094888][ T339] [ 34.094965][ T339] dump_stack_lvl (lib/dump_stack.c:117) [ 34.095117][ T339] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 34.095453][ T339] ? 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) [ 34.095606][ T339] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 34.095795][ T339] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 34.095951][ T339] ? __bfs (kernel/locking/lockdep.c:1787) [ 34.096057][ T339] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 34.096206][ T339] check_irq_usage (kernel/locking/lockdep.c:2871) [ 34.096359][ T339] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 34.096604][ T339] ? __bfs (kernel/locking/lockdep.c:1787) [ 34.096718][ T339] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 34.096867][ T339] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 34.097013][ T339] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 34.097173][ T339] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 34.097341][ T339] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 34.097486][ T339] check_prev_add (kernel/locking/lockdep.c:3138) [ 34.097633][ T339] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 34.097777][ T339] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 34.097925][ T339] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.098129][ T339] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 34.098276][ T339] ? 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) [ 34.098424][ T339] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.098536][ T339] __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.098689][ T339] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 34.098935][ T339] ? __get_task_comm (fs/exec.c:1234) [ 34.099085][ T339] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.099197][ T339] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 34.099353][ T339] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 34.099621][ T339] ? __get_task_comm (fs/exec.c:1234) [ 34.099777][ T339] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 34.099940][ T339] ? __get_task_comm (fs/exec.c:1234) [ 34.100086][ T339] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 34.100239][ T339] ? __get_task_comm (fs/exec.c:1234) [ 34.100388][ T339] __get_task_comm (fs/exec.c:1234) [ 34.100533][ T339] ref_tracker_alloc (lib/ref_tracker.c:217) [ 34.100688][ T339] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 34.100838][ T339] ? __lock_release (kernel/locking/lockdep.c:5430) [ 34.101089][ T339] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 34.101398][ T339] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 34.101549][ T339] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 34.101692][ T339] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 34.101846][ T339] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 34.101995][ T339] ? __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 34.102246][ T339] ? netdev_master_upper_dev_link (net/core/dev.c:7937) [ 34.102430][ T339] ? vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 34.102584][ T339] ? rtnl_newlink_create (net/core/rtnetlink.c:3512) [ 34.102741][ T339] ? __rtnl_newlink (net/core/rtnetlink.c:3714) [ 34.102892][ T339] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 34.103141][ T339] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 34.103300][ T339] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 34.103566][ T339] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 34.103716][ T339] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 34.103865][ T339] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 34.104019][ T339] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 34.104171][ T339] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 34.104365][ T339] rt6_disable_ip (net/ipv6/route.c:4910) [ 34.104512][ T339] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 34.104653][ T339] ? 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) [ 34.104800][ T339] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 34.104948][ T339] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 34.105097][ T339] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 34.105396][ T339] addrconf_notify (net/ipv6/addrconf.c:3811) [ 34.105552][ T339] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 34.105701][ T339] __netdev_upper_dev_link (./include/linux/notifier.h:207 net/core/dev.c:7869) [ 34.105854][ T339] ? __pfx___netdev_upper_dev_link (net/core/dev.c:7821) [ 34.106216][ T339] ? __dev_notify_flags (net/core/dev.c:8800) [ 34.106369][ T339] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 34.106517][ T339] ? __dev_change_flags (net/core/dev.c:8756) [ 34.106666][ T339] netdev_master_upper_dev_link (net/core/dev.c:7937) [ 34.106812][ T339] ? __pfx_netdev_master_upper_dev_link (net/core/dev.c:7931) [ 34.107088][ T339] ? 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) [ 34.107278][ T339] ? rtnl_is_locked (net/core/rtnetlink.c:164) [ 34.107522][ T339] ? netdev_master_upper_dev_get (net/core/dev.c:7024) [ 34.107955][ T339] vrf_add_slave (drivers/net/vrf.c:1118 drivers/net/vrf.c:1142) vrf [ 34.108171][ T339] rtnl_newlink_create (net/core/rtnetlink.c:3512) [ 34.108401][ T339] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3445) [ 34.108636][ T339] __rtnl_newlink (net/core/rtnetlink.c:3714) [ 34.108870][ T339] ? 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) [ 34.109276][ T339] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 34.109510][ T339] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 34.109818][ T339] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 34.110061][ T339] rtnl_newlink (net/core/rtnetlink.c:3728) [ 34.110395][ T339] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 34.110628][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 34.110869][ T339] ? 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) [ 34.111262][ T339] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.111588][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.111821][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 34.112048][ T339] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 34.112279][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 34.112505][ T339] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 34.112902][ T339] ? 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) [ 34.113132][ T339] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 34.113359][ T339] ? 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) [ 34.113589][ T339] ? 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) [ 34.113980][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 34.114211][ T339] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 34.114441][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 34.114663][ T339] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 34.115219][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 34.115461][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 34.115693][ T339] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 34.115930][ T339] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 34.116330][ T339] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 34.116567][ T339] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 34.116796][ T339] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 34.117097][ T339] ? __lock_release (kernel/locking/lockdep.c:5430) [ 34.117504][ T339] ? do_fault_around (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 mm/memory.c:4855) [ 34.117761][ T339] ___sys_sendmsg (net/socket.c:2640) [ 34.118003][ T339] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 34.118246][ T339] ? 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) [ 34.118659][ T339] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.118991][ T339] ? __pfx_filemap_map_pages (mm/filemap.c:3565) [ 34.119235][ T339] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.119491][ T339] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) [ 34.119898][ T339] ? 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) [ 34.120140][ T339] ? reacquire_held_locks (kernel/locking/lockdep.c:5279) [ 34.120384][ T339] ? 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) [ 34.120626][ T339] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 34.121036][ T339] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 34.121293][ T339] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 34.121528][ T339] ? __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) [ 34.121772][ T339] ? do_user_addr_fault (./include/linux/rcupdate.h:815 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364) [ 34.122010][ T339] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 34.122254][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 34.122739][ T339] RIP: 0033:0x7fbaf87997b7 [ 34.122994][ T339] 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) [ 34.123832][ T339] RSP: 002b:00007ffd9dbd9b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.124187][ T339] RAX: ffffffffffffffda RBX: 00007ffd9dbda240 RCX: 00007fbaf87997b7 [ 34.124559][ T339] RDX: 0000000000000000 RSI: 00007ffd9dbd9b80 RDI: 0000000000000005 [ 34.124914][ T339] RBP: 0000000000000002 R08: 0000000000000054 R09: 0000000000000000 [ 34.125272][ T339] R10: 00007fbaf87e8ac0 R11: 0000000000000246 R12: 00007ffd9dbda288 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add