====================================== | [ 211.245114][ T605] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 211.245323][ T605] | [ 211.245408][ T605] | [ 211.245408][ T605] stack backtrace: [ 211.245967][ T605] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 211.246329][ T605] Call Trace: [ 211.246454][ T605] [ 211.246536][ T605] dump_stack_lvl (lib/dump_stack.c:117) [ 211.246808][ T605] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 211.246968][ T605] ? 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) [ 211.247145][ T605] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 211.247341][ T605] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 211.247598][ T605] ? __bfs (kernel/locking/lockdep.c:1787) [ 211.247718][ T605] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 211.247873][ T605] check_irq_usage (kernel/locking/lockdep.c:2871) [ 211.248044][ T605] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 211.248205][ T605] ? __bfs (kernel/locking/lockdep.c:1787) [ 211.248337][ T605] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 211.248496][ T605] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 211.248659][ T605] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 211.248823][ T605] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 211.249123][ T605] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 211.249283][ T605] check_prev_add (kernel/locking/lockdep.c:3138) [ 211.249449][ T605] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 211.249609][ T605] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 211.249877][ T605] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 211.249997][ T605] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 211.250164][ T605] ? 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) [ 211.250338][ T605] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 211.250459][ T605] __lock_acquire (kernel/locking/lockdep.c:5137) [ 211.250738][ T605] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 211.250904][ T605] ? __get_task_comm (fs/exec.c:1234) [ 211.251069][ T605] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 211.251195][ T605] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 211.251373][ T605] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 211.251532][ T605] ? __get_task_comm (fs/exec.c:1234) [ 211.251699][ T605] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 211.251861][ T605] ? __get_task_comm (fs/exec.c:1234) [ 211.252023][ T605] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 211.252186][ T605] ? __get_task_comm (fs/exec.c:1234) [ 211.252349][ T605] __get_task_comm (fs/exec.c:1234) [ 211.252512][ T605] ref_tracker_alloc (lib/ref_tracker.c:217) [ 211.252682][ T605] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 211.252940][ T605] ? __lock_release (kernel/locking/lockdep.c:5430) [ 211.253110][ T605] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 211.253310][ T605] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 211.253473][ T605] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 211.253743][ T605] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 211.253897][ T605] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 211.254065][ T605] ? __dev_notify_flags (net/core/dev.c:8800) [ 211.254228][ T605] ? dev_change_flags (net/core/dev.c:8835) [ 211.254480][ T605] ? do_setlink (net/core/rtnetlink.c:2884) [ 211.254647][ T605] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 211.254806][ T605] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 211.254971][ T605] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 211.255232][ T605] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 211.255394][ T605] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 211.255552][ T605] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 211.255715][ T605] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 211.255877][ T605] ? ___sys_sendmsg (net/socket.c:2640) [ 211.256141][ T605] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 211.256297][ T605] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 211.256502][ T605] rt6_disable_ip (net/ipv6/route.c:4910) [ 211.256663][ T605] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 211.256908][ T605] ? 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) [ 211.257063][ T605] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 211.257223][ T605] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 211.257383][ T605] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 211.257671][ T605] addrconf_notify (net/ipv6/addrconf.c:3811) [ 211.257833][ T605] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 211.257994][ T605] __dev_notify_flags (net/core/dev.c:8800) [ 211.258158][ T605] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 211.258312][ T605] ? __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) [ 211.258465][ T605] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 211.258624][ T605] dev_change_flags (net/core/dev.c:8835) [ 211.258778][ T605] do_setlink (net/core/rtnetlink.c:2884) [ 211.259057][ T605] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 211.259298][ T605] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 211.259530][ T605] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 211.259708][ T605] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 211.259963][ T605] ? __kernel_text_address (kernel/extable.c:79) [ 211.260129][ T605] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 211.260288][ T605] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 211.260494][ T605] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 211.260764][ T605] ? stack_trace_save (kernel/stacktrace.c:123) [ 211.260934][ T605] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 211.261105][ T605] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 211.261268][ T605] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 211.261397][ T605] ? kasan_save_stack (mm/kasan/common.c:49) [ 211.261673][ T605] ? kasan_save_stack (mm/kasan/common.c:48) [ 211.261841][ T605] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 211.261998][ T605] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 211.262168][ T605] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 211.262349][ T605] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 211.262508][ T605] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 211.262687][ T605] ? __nla_validate_parse (lib/nlattr.c:619) [ 211.262842][ T605] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 211.263088][ T605] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 211.263246][ T605] ? ___sys_sendmsg (net/socket.c:2640) [ 211.263406][ T605] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 211.263580][ T605] ? 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) [ 211.263740][ T605] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 211.263984][ T605] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 211.264189][ T605] ? __create_object (mm/kmemleak.c:756) [ 211.264349][ T605] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 211.264516][ T605] rtnl_newlink (net/core/rtnetlink.c:3728) [ 211.264733][ T605] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 211.264899][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 211.265056][ T605] ? 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) [ 211.265224][ T605] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 211.265440][ T605] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 211.265607][ T605] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 211.265767][ T605] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 211.265926][ T605] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 211.266083][ T605] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 211.266355][ T605] ? 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) [ 211.266521][ T605] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 211.266685][ T605] ? 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) [ 211.266847][ T605] ? 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) [ 211.267190][ T605] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 211.267349][ T605] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 211.267511][ T605] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 211.267737][ T605] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 211.268007][ T605] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 211.268164][ T605] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 211.268323][ T605] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 211.268474][ T605] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 211.268768][ T605] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 211.268920][ T605] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 211.269127][ T605] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 211.269320][ T605] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 211.269567][ T605] ___sys_sendmsg (net/socket.c:2640) [ 211.269743][ T605] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 211.269892][ T605] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 211.270037][ T605] ? __lock_release (kernel/locking/lockdep.c:5430) [ 211.270195][ T605] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 211.270395][ T605] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 211.270565][ T605] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 211.270726][ T605] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 211.271030][ T605] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 211.271193][ T605] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 211.271353][ T605] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 211.271517][ T605] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 211.271744][ T605] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 211.272044][ T605] RIP: 0033:0x7f9efe5937b7 [ 211.272216][ T605] 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) [ 211.272916][ T605] RSP: 002b:00007ffd6c34ef08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 211.273192][ T605] RAX: ffffffffffffffda RBX: 00007ffd6c34f630 RCX: 00007f9efe5937b7 [ 211.273567][ T605] RDX: 0000000000000000 RSI: 00007ffd6c34ef70 RDI: 0000000000000005 [ 211.273835][ T605] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 211.274099][ T605] R10: 00007f9efe451ef8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add