====================================== | [ 33.870517][ T351] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 33.870697][ T351] | [ 33.870777][ T351] | [ 33.870777][ T351] stack backtrace: [ 33.871177][ T351] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.871504][ T351] Call Trace: [ 33.871616][ T351] [ 33.871692][ T351] dump_stack_lvl (lib/dump_stack.c:117) [ 33.871844][ T351] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 33.871998][ T351] ? 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) [ 33.872148][ T351] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 33.872327][ T351] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 33.872471][ T351] ? __bfs (kernel/locking/lockdep.c:1787) [ 33.872585][ T351] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 33.872734][ T351] check_irq_usage (kernel/locking/lockdep.c:2871) [ 33.872880][ T351] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 33.873027][ T351] ? __bfs (kernel/locking/lockdep.c:1787) [ 33.873142][ T351] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 33.873290][ T351] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 33.873438][ T351] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 33.873583][ T351] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 33.873734][ T351] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 33.873882][ T351] check_prev_add (kernel/locking/lockdep.c:3138) [ 33.874034][ T351] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 33.874176][ T351] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 33.874324][ T351] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.874432][ T351] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 33.874577][ T351] ? 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) [ 33.874721][ T351] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.874829][ T351] __lock_acquire (kernel/locking/lockdep.c:5137) [ 33.874977][ T351] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 33.875119][ T351] ? __get_task_comm (fs/exec.c:1234) [ 33.875264][ T351] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.875370][ T351] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 33.875514][ T351] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 33.875655][ T351] ? __get_task_comm (fs/exec.c:1234) [ 33.875802][ T351] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 33.875943][ T351] ? __get_task_comm (fs/exec.c:1234) [ 33.876085][ T351] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 33.876239][ T351] ? __get_task_comm (fs/exec.c:1234) [ 33.876378][ T351] __get_task_comm (fs/exec.c:1234) [ 33.876522][ T351] ref_tracker_alloc (lib/ref_tracker.c:217) [ 33.876666][ T351] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 33.876831][ T351] ? __lock_release (kernel/locking/lockdep.c:5430) [ 33.876972][ T351] ? rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 33.877149][ T351] ? rt6_disable_ip (net/ipv6/route.c:4910) [ 33.877291][ T351] ? addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 33.877430][ T351] ? addrconf_notify (net/ipv6/addrconf.c:3811) [ 33.877571][ T351] ? notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 33.877719][ T351] ? __dev_notify_flags (net/core/dev.c:8800) [ 33.877861][ T351] ? dev_change_flags (net/core/dev.c:8835) [ 33.878003][ T351] ? do_setlink (net/core/rtnetlink.c:2884) [ 33.878144][ T351] ? __rtnl_newlink (net/core/rtnetlink.c:3680) [ 33.878287][ T351] ? rtnl_newlink (net/core/rtnetlink.c:3728) [ 33.878427][ T351] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 33.878570][ T351] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 33.878710][ T351] ? netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 33.878852][ T351] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 33.879083][ T351] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 33.879234][ T351] ? ___sys_sendmsg (net/socket.c:2640) [ 33.879380][ T351] ? in6_dev_get (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/addrconf.h:373) [ 33.879527][ T351] rt6_uncached_list_flush_dev (./include/linux/netdevice.h:4036 ./include/linux/netdevice.h:4114 net/ipv6/route.c:185) [ 33.879793][ T351] rt6_disable_ip (net/ipv6/route.c:4910) [ 33.879934][ T351] ? __pfx_rt6_disable_ip (net/ipv6/route.c:4907) [ 33.880075][ T351] ? 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) [ 33.880217][ T351] addrconf_ifdown.isra.0 (./include/net/addrconf.h:324 net/ipv6/addrconf.c:3856) [ 33.880446][ T351] ? __try_to_del_timer_sync (kernel/time/timer.c:1500) [ 33.880592][ T351] ? __pfx_addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:3841) [ 33.880772][ T351] addrconf_notify (net/ipv6/addrconf.c:3811) [ 33.880921][ T351] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) [ 33.881240][ T351] __dev_notify_flags (net/core/dev.c:8800) [ 33.881381][ T351] ? __pfx___dev_notify_flags (net/core/dev.c:8787) [ 33.881522][ T351] ? __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) [ 33.881677][ T351] ? __pfx___dev_change_flags (net/core/dev.c:8720) [ 33.881907][ T351] dev_change_flags (net/core/dev.c:8835) [ 33.882049][ T351] do_setlink (net/core/rtnetlink.c:2884) [ 33.882195][ T351] ? is_bpf_text_address (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/bpf/core.c:769) [ 33.882339][ T351] ? __pfx_do_setlink (net/core/rtnetlink.c:2762) [ 33.882579][ T351] ? is_bpf_text_address (kernel/bpf/core.c:772) [ 33.882722][ T351] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 33.882864][ T351] ? __kernel_text_address (kernel/extable.c:79) [ 33.883006][ T351] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) [ 33.883149][ T351] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) [ 33.883425][ T351] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 33.883571][ T351] ? stack_trace_save (kernel/stacktrace.c:123) [ 33.883715][ T351] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 33.883856][ T351] ? stack_depot_save_flags (lib/stackdepot.c:609) [ 33.883998][ T351] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.884105][ T351] ? kasan_save_stack (mm/kasan/common.c:49) [ 33.884247][ T351] ? kasan_save_stack (mm/kasan/common.c:48) [ 33.884387][ T351] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 33.884527][ T351] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 33.884673][ T351] ? rtnl_newlink (./include/linux/slab.h:628 net/core/rtnetlink.c:3723) [ 33.884813][ T351] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 33.884953][ T351] ? netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 33.885181][ T351] ? __nla_validate_parse (lib/nlattr.c:619) [ 33.885321][ T351] ? netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 33.885462][ T351] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 33.885604][ T351] ? ___sys_sendmsg (net/socket.c:2640) [ 33.885746][ T351] __rtnl_newlink (net/core/rtnetlink.c:3680) [ 33.885979][ T351] ? 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) [ 33.886135][ T351] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3541) [ 33.886279][ T351] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 33.886454][ T351] ? __create_object (mm/kmemleak.c:756) [ 33.886691][ T351] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 33.886833][ T351] rtnl_newlink (net/core/rtnetlink.c:3728) [ 33.886940][ T351] rtnetlink_rcv_msg (net/core/rtnetlink.c:6594) [ 33.887081][ T351] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 33.887321][ T351] ? 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) [ 33.887466][ T351] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 33.887575][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 33.887719][ T351] netlink_rcv_skb (net/netlink/af_netlink.c:2559) [ 33.887861][ T351] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6488) [ 33.888002][ T351] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2536) [ 33.888143][ T351] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 33.888287][ T351] ? 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) [ 33.888429][ T351] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 33.888581][ T351] ? 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) [ 33.888720][ T351] ? 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) [ 33.888867][ T351] ? netlink_deliver_tap (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/netlink/af_netlink.c:340) [ 33.889009][ T351] netlink_unicast (net/netlink/af_netlink.c:1335 net/netlink/af_netlink.c:1361) [ 33.889238][ T351] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1346) [ 33.889379][ T351] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 33.889525][ T351] netlink_sendmsg (net/netlink/af_netlink.c:1905) [ 33.889676][ T351] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1824) [ 33.889903][ T351] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) [ 33.890046][ T351] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) [ 33.890191][ T351] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 33.890332][ T351] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 33.890482][ T351] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 33.890750][ T351] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 33.890894][ T351] ___sys_sendmsg (net/socket.c:2640) [ 33.891044][ T351] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 33.891187][ T351] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 33.891426][ T351] ? __lock_release (kernel/locking/lockdep.c:5430) [ 33.891567][ T351] ? __debug_check_no_obj_freed (lib/debugobjects.c:1000) [ 33.891752][ T351] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 33.891895][ T351] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 33.892038][ T351] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 33.892215][ T351] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 33.892363][ T351] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2669) [ 33.892508][ T351] ? __pfx___sys_sendmsg (net/socket.c:2655) [ 33.892751][ T351] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 33.892893][ T351] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 33.893069][ T351] RIP: 0033:0x7f10663937b7 [ 33.893219][ T351] 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) [ 33.893836][ T351] RSP: 002b:00007ffebb8ac488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 33.894151][ T351] RAX: ffffffffffffffda RBX: 00007ffebb8acbb0 RCX: 00007f10663937b7 [ 33.894372][ T351] RDX: 0000000000000000 RSI: 00007ffebb8ac4f0 RDI: 0000000000000005 [ 33.894585][ T351] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 33.894903][ T351] R10: 00007f1066251ef8 R11: 0000000000000246 R12: 0000000000000003 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add