====================================== | [ 37.166682][ T375] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 37.166849][ T375] | [ 37.166924][ T375] | [ 37.166924][ T375] stack backtrace: [ 37.167379][ T375] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.167681][ T375] Call Trace: [ 37.167791][ T375] [ 37.167861][ T375] dump_stack_lvl (lib/dump_stack.c:117) [ 37.168083][ T375] print_bad_irq_dependency (kernel/locking/lockdep.c:2626) [ 37.168220][ T375] ? 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) [ 37.168362][ T375] ? __pfx_print_bad_irq_dependency (kernel/locking/lockdep.c:2569) [ 37.168534][ T375] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 37.168748][ T375] ? __bfs (kernel/locking/lockdep.c:1787) [ 37.168859][ T375] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 37.168994][ T375] check_irq_usage (kernel/locking/lockdep.c:2871) [ 37.169138][ T375] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 37.169356][ T375] ? __bfs (kernel/locking/lockdep.c:1787) [ 37.169462][ T375] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 37.169598][ T375] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 37.169738][ T375] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 37.169875][ T375] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 37.170099][ T375] ? check_prev_add (kernel/locking/lockdep.c:3138) [ 37.170234][ T375] check_prev_add (kernel/locking/lockdep.c:3138) [ 37.170378][ T375] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 37.170554][ T375] validate_chain (kernel/locking/lockdep.c:3254 kernel/locking/lockdep.c:3869) [ 37.170703][ T375] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 37.170806][ T375] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 37.170940][ T375] ? 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) [ 37.171072][ T375] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 37.171179][ T375] __lock_acquire (kernel/locking/lockdep.c:5137) [ 37.171398][ T375] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 37.171532][ T375] ? __get_task_comm (fs/exec.c:1234) [ 37.171673][ T375] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 37.171777][ T375] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 37.171991][ T375] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 37.172125][ T375] ? __get_task_comm (fs/exec.c:1234) [ 37.172259][ T375] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 37.172393][ T375] ? __get_task_comm (fs/exec.c:1234) [ 37.172607][ T375] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 37.172741][ T375] ? __get_task_comm (fs/exec.c:1234) [ 37.172878][ T375] __get_task_comm (fs/exec.c:1234) [ 37.173015][ T375] ref_tracker_alloc (lib/ref_tracker.c:217) [ 37.173154][ T375] ? __pfx_ref_tracker_alloc (lib/ref_tracker.c:193) [ 37.173366][ T375] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 37.173500][ T375] ? netdev_get_by_index (net/core/dev.c:914) [ 37.173633][ T375] ? fib6_nh_init (net/ipv6/route.c:3541) [ 37.173767][ T375] ? ip6_route_info_create (net/ipv6/route.c:3808) [ 37.174060][ T375] ? addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 37.174199][ T375] ? __ipv6_dev_ac_inc (net/ipv6/anycast.c:309) [ 37.174333][ T375] ? addrconf_join_anycast (net/ipv6/addrconf.c:2264) [ 37.174467][ T375] ? dev_forward_change (./include/linux/list.h:373 net/ipv6/addrconf.c:833) [ 37.174602][ T375] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:854 net/ipv6/addrconf.c:898) [ 37.174768][ T375] ? addrconf_sysctl_forward (net/ipv6/addrconf.c:6329) [ 37.174903][ T375] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:595) [ 37.175039][ T375] ? vfs_write (./include/linux/fs.h:2108 fs/read_write.c:497 fs/read_write.c:590) [ 37.175254][ T375] ? ksys_write (fs/read_write.c:643) [ 37.175391][ T375] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 37.175524][ T375] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 37.175690][ T375] ? dev_get_by_index (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 net/core/dev.c:888) [ 37.175903][ T375] netdev_get_by_index (net/core/dev.c:914) [ 37.176040][ T375] fib6_nh_init (net/ipv6/route.c:3541) [ 37.176175][ T375] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 37.176341][ T375] ? __pfx_fib6_nh_init (net/ipv6/route.c:3522) [ 37.176556][ T375] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 37.176695][ T375] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 37.176830][ T375] ? __kmalloc (mm/slub.c:3980) [ 37.176967][ T375] ? fib6_get_table (net/ipv6/ip6_fib.c:295) [ 37.177181][ T375] ip6_route_info_create (net/ipv6/route.c:3808) [ 37.177314][ T375] ? __lock_release (kernel/locking/lockdep.c:5430) [ 37.177450][ T375] ? __pfx_ip6_route_info_create (net/ipv6/route.c:3691) [ 37.177618][ T375] ? addrconf_f6i_alloc (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 ./include/net/l3mdev.h:138 net/ipv6/route.c:4564) [ 37.177832][ T375] addrconf_f6i_alloc (net/ipv6/route.c:4584) [ 37.177973][ T375] ? __pfx_addrconf_f6i_alloc (net/ipv6/route.c:4562) [ 37.178112][ T375] ? do_raw_write_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qrwlock.h:98 kernel/locking/spinlock_debug.c:211) [ 37.178247][ T375] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 37.178381][ T375] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 37.178597][ T375] __ipv6_dev_ac_inc (net/ipv6/anycast.c:309) [ 37.178734][ T375] addrconf_join_anycast (net/ipv6/addrconf.c:2264) [ 37.178867][ T375] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 37.178972][ T375] ? __pfx_addrconf_join_anycast (net/ipv6/addrconf.c:2256) [ 37.179224][ T375] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 37.179392][ T375] dev_forward_change (./include/linux/list.h:373 net/ipv6/addrconf.c:833) [ 37.179527][ T375] ? __pfx_dev_forward_change (net/ipv6/addrconf.c:803) [ 37.179663][ T375] addrconf_fixup_forwarding (net/ipv6/addrconf.c:854 net/ipv6/addrconf.c:898) [ 37.179879][ T375] addrconf_sysctl_forward (net/ipv6/addrconf.c:6329) [ 37.180016][ T375] ? __pfx_addrconf_sysctl_forward (net/ipv6/addrconf.c:6312) [ 37.180184][ T375] ? __pfx_addrconf_sysctl_forward (net/ipv6/addrconf.c:6312) [ 37.180354][ T375] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) [ 37.180567][ T375] ? __kmalloc_node (mm/slub.c:3974) [ 37.180716][ T375] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:578) [ 37.180853][ T375] proc_sys_call_handler (fs/proc/proc_sysctl.c:595) [ 37.180988][ T375] ? __pfx_proc_sys_call_handler (fs/proc/proc_sysctl.c:550) [ 37.181238][ T375] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 37.181374][ T375] vfs_write (./include/linux/fs.h:2108 fs/read_write.c:497 fs/read_write.c:590) [ 37.181476][ T375] ? 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) [ 37.181615][ T375] ? __pfx_vfs_write (fs/read_write.c:571) [ 37.181830][ T375] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 37.181966][ T375] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 37.182100][ T375] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 37.182234][ T375] ksys_write (fs/read_write.c:643) [ 37.182336][ T375] ? __pfx_ksys_write (fs/read_write.c:633) [ 37.182549][ T375] ? do_user_addr_fault (./include/linux/rcupdate.h:815 ./include/linux/mm.h:702 arch/x86/mm/fault.c:1364) [ 37.182683][ T375] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 37.182820][ T375] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 37.182990][ T375] RIP: 0033:0x7f635f6e8957 [ 37.183215][ T375] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 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 b7 jmp 0xffffffffffffffc7 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 01 00 00 00 mov $0x1,%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: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 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: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 37.183775][ T375] RSP: 002b:00007fff5470d4e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 37.183980][ T375] RAX: ffffffffffffffda RBX: 00005586d2b5d360 RCX: 00007f635f6e8957 [ 37.184183][ T375] RDX: 0000000000000002 RSI: 00005586d2b5d3a0 RDI: 0000000000000005 [ 37.184546][ T375] RBP: 00005586d2b5f4d0 R08: 0000000000000003 R09: 0000000000000077 [ 37.184747][ T375] R10: 000000000000006b R11: 0000000000000246 R12: 0000000000000002 Finger prints: dump_stack_lvl:print_bad_irq_dependency:check_irq_usage:check_prev_add