====================================== | [ 35.410374][ T338] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 35.410578][ T338] | [ 35.410659][ T338] | [ 35.410659][ T338] stack backtrace: [ 35.411174][ T338] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.411519][ T338] Call Trace: [ 35.411738][ T338] [ 35.411819][ T338] dump_stack_lvl (lib/dump_stack.c:117) [ 35.411978][ T338] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 35.412136][ 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) [ 35.412298][ T338] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 35.412580][ T338] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 35.412742][ T338] ? __bfs (kernel/locking/lockdep.c:1787) [ 35.412861][ T338] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 35.413020][ T338] check_irq_usage (kernel/locking/lockdep.c:2871) [ 35.413264][ T338] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 35.413420][ T338] ? __bfs (kernel/locking/lockdep.c:1787) [ 35.413537][ T338] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 35.413695][ T338] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 35.413938][ T338] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 35.414098][ T338] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 35.414266][ T338] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 35.414424][ T338] check_prev_add (kernel/locking/lockdep.c:3138) [ 35.414582][ T338] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 35.414914][ T338] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 35.415072][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.415192][ T338] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 35.415346][ 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) [ 35.415598][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.415721][ T338] __lock_acquire (kernel/locking/lockdep.c:5137) [ 35.415883][ T338] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 35.416042][ T338] ? __get_task_comm (fs/exec.c:1234) [ 35.416200][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.416320][ T338] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 35.416479][ T338] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 35.416641][ T338] ? __get_task_comm (fs/exec.c:1234) [ 35.416813][ T338] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 35.417061][ T338] ? __get_task_comm (fs/exec.c:1234) [ 35.417221][ T338] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 35.417379][ T338] ? __get_task_comm (fs/exec.c:1234) [ 35.417536][ T338] __get_task_comm (fs/exec.c:1234) [ 35.417784][ T338] ref_tracker_alloc (lib/ref_tracker.c:217) [ 35.417944][ T338] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 35.418104][ T338] ? __lock_release (kernel/locking/lockdep.c:5430) [ 35.418260][ T338] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 35.418550][ T338] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 35.418709][ T338] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 35.418867][ T338] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 35.419026][ T338] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 35.419182][ T338] ? __dev_notify_flags (net/core/dev.c:8800) [ 35.419348][ T338] ? dev_change_flags (net/core/dev.c:8835) [ 35.419507][ T338] ? do_setlink (net/core/rtnetlink.c:2884) [ 35.419664][ T338] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 35.419820][ T338] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 35.419980][ T338] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 35.420135][ T338] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 35.420294][ T338] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 35.420447][ T338] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 35.420697][ T338] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 35.420855][ T338] ? ___sys_sendmsg (net/socket.c:2640) [ 35.421013][ T338] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 35.421170][ T338] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 35.421457][ T338] rt6_disable_ip (net/ipv6/route.c:4910) [ 35.421616][ T338] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 35.421773][ 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) [ 35.421931][ T338] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 35.422180][ T338] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 35.422337][ T338] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 35.422537][ T338] addrconf_notify (net/ipv6/addrconf.c:3811) [ 35.422695][ T338] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 35.422944][ T338] __dev_notify_flags (net/core/dev.c:8800) [ 35.423104][ T338] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 35.423260][ T338] ? __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) [ 35.423416][ T338] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 35.423575][ T338] dev_change_flags (net/core/dev.c:8835) [ 35.423821][ T338] do_setlink (net/core/rtnetlink.c:2884) [ 35.423978][ T338] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 35.424135][ T338] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 35.424293][ T338] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 35.424548][ T338] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.424709][ T338] ? __kernel_text_address (kernel/extable.c:79) [ 35.424867][ T338] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 35.425027][ T338] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 35.425224][ T338] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.425384][ T338] ? stack_trace_save (kernel/stacktrace.c:123) [ 35.425540][ T338] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.425702][ T338] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 35.425857][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.425976][ T338] ? kasan_save_stack (mm/kasan/common.c:49) [ 35.426136][ T338] ? kasan_save_stack (mm/kasan/common.c:48) [ 35.426294][ T338] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 35.426448][ T338] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 35.426699][ T338] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 35.426864][ T338] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 35.427018][ T338] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 35.427181][ T338] ? validate_nla (lib/nlattr.c:513) [ 35.427338][ T338] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 35.427494][ T338] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 35.427653][ T338] ? ___sys_sendmsg (net/socket.c:2640) [ 35.427812][ T338] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 35.427971][ 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) [ 35.428128][ T338] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 35.428286][ T338] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 35.428485][ T338] ? __create_object (mm/kmemleak.c:756) [ 35.428730][ T338] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 35.428888][ T338] rtnl_newlink (net/core/rtnetlink.c:3728) [ 35.429006][ T338] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 35.429160][ T338] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 35.429317][ 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) [ 35.429560][ T338] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.429679][ T338] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 35.429833][ T338] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 35.429989][ T338] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 35.430232][ T338] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 35.430388][ T338] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 35.430548][ 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) [ 35.430712][ T338] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 35.430956][ 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) [ 35.431112][ 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) [ 35.431269][ T338] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 35.431429][ T338] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 35.431584][ T338] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 35.431828][ T338] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 35.431983][ T338] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 35.432138][ T338] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 35.432294][ T338] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 35.432545][ T338] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 35.432704][ T338] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 35.432865][ T338] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 35.433021][ T338] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 35.433218][ T338] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 35.433378][ T338] ___sys_sendmsg (net/socket.c:2640) [ 35.433536][ T338] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 35.433693][ T338] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 35.433940][ T338] ? __lock_release (kernel/locking/lockdep.c:5430) [ 35.434097][ T338] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 35.434304][ T338] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 35.434462][ T338] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.434705][ T338] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 35.434902][ T338] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 35.435062][ T338] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 35.435220][ T338] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 35.435469][ T338] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.435631][ T338] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 35.435826][ T338] RIP: 0033:0x7f053ba937b7 [ 35.435990][ 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) [ 35.436638][ T338] RSP: 002b:00007ffee782baf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.436981][ T338] RAX: ffffffffffffffda RBX: 00007ffee782c220 RCX: 00007f053ba937b7 [ 35.437222][ T338] RDX: 0000000000000000 RSI: 00007ffee782bb60 RDI: 0000000000000005 [ 35.437461][ T338] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 35.437785][ T338] R10: 00007f053b951ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add