====================================== | [ 10.427324][ T184] softirqs last disabled at (36066): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.427326][ T184] Preemption disabled at: | [ 10.427326][ T184] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.427336][ T184] Tainted: [W]=WARN [ 10.427337][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.427338][ T184] Call Trace: [ 10.427340][ T184] [ 10.427342][ T184] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.427348][ T184] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.427350][ T184] __might_resched.cold (kernel/sched/core.c:9234) [ 10.427354][ T184] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.427359][ T184] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.427364][ T184] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 10.427367][ T184] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.427373][ T184] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 10.427376][ T184] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.427379][ T184] put_chars (drivers/char/virtio_console.c:1176) [ 10.427382][ T184] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.427386][ T184] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.427391][ T184] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.427395][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427400][ T184] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.427403][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427409][ T184] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.427412][ T184] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.427417][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427419][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.427423][ T184] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.427427][ T184] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.427429][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427434][ T184] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.427437][ T184] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.427439][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427440][ T184] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.427444][ T184] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.427446][ T184] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.427449][ T184] vprintk_emit (kernel/printk/printk.c:2479) [ 10.427452][ T184] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.427453][ T184] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 10.427455][ T184] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 10.427461][ T184] dev_vprintk_emit (drivers/base/core.c:5000) [ 10.427467][ T184] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 10.427471][ T184] ? rcu_read_lock_sched_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:126 kernel/rcu/update.c:120) [ 10.427474][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427476][ T184] ? trace_sched_dl_update_tp (./include/trace/events/sched.h:913 (discriminator 22)) [ 10.427481][ T184] dev_printk_emit (drivers/base/core.c:5011) [ 10.427483][ T184] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 10.427486][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427488][ T184] ? trace_sched_exit_tp (./include/trace/events/sched.h:886 (discriminator 22)) [ 10.427490][ T184] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2)) [ 10.427492][ T184] ? __schedule (kernel/sched/sched.h:1698 kernel/sched/core.c:7275) [ 10.427496][ T184] ? __schedule (kernel/sched/core.c:7277) [ 10.427500][ T184] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 10.427506][ T184] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.427508][ T184] ? netdev_notice (net/core/dev.c:13194) [ 10.427512][ T184] ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12) [ 10.427515][ T184] ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12) [ 10.427518][ T184] ? __local_bh_enable_ip (kernel/softirq.c:478) [ 10.427522][ T184] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.427524][ T184] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.427527][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427529][ T184] ? mark_lock_irq (kernel/locking/lockdep.c:154 (discriminator 6) kernel/locking/lockdep.c:150 (discriminator 6) kernel/locking/lockdep.c:202 (discriminator 6) kernel/locking/lockdep.c:4092 (discriminator 6) kernel/locking/lockdep.c:4174 (discriminator 6) kernel/locking/lockdep.c:4310 (discriminator 6)) [ 10.427532][ T184] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.427536][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.427538][ T184] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.427543][ T184] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.427546][ T184] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.427549][ T184] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.427551][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.427553][ T184] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.427555][ T184] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.427557][ T184] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.427559][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427561][ T184] ? sched_balance_rq (kernel/sched/fair.c:13526) [ 10.427564][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427566][ T184] ? __print_lock_name (kernel/locking/lockdep.c:735) [ 10.427570][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.427571][ T184] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.427574][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427576][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.427578][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427579][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427581][ T184] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.427583][ T184] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 10.427586][ T184] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.427588][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.427590][ T184] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.427593][ T184] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.427596][ T184] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.427599][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.427602][ T184] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.427604][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.427607][ T184] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.427614][ T184] rtnl_setlink (net/core/rtnetlink.c:3596) [ 10.427617][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.427619][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427641][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.427643][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.427646][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.427648][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.427650][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427655][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.427657][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.427658][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.427661][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.427664][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.427667][ T184] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.427670][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.427672][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427676][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.427678][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.427682][ T184] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.427685][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.427688][ T184] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.427695][ T184] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 10.427697][ T184] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 10.427701][ T184] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.427706][ T184] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.427708][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.427713][ T184] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.427717][ T184] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.427721][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.427725][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.427729][ T184] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 10.427732][ T184] ? __ia32_sys_getpeername (net/socket.c:2235) [ 10.427745][ T184] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 10.427747][ T184] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.427751][ T184] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.427753][ T184] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 10.427755][ T184] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.427757][ T184] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.427760][ T184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.427767][ T184] RIP: 0033:0x7fd1f75a454e [ 10.427771][ T184] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 10.427773][ T184] RSP: 002b:00007ffff8dfb670 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 10.427775][ T184] RAX: ffffffffffffffda RBX: 000055ee08cf3e10 RCX: 00007fd1f75a454e [ 10.427776][ T184] RDX: 0000000000000030 RSI: 000055ee08d2e310 RDI: 000000000000001e [ 10.427777][ T184] RBP: 00007ffff8dfb680 R08: 00007ffff8dfb6d0 R09: 0000000000000080 [ 10.427778][ T184] R10: 0000000000000000 R11: 0000000000000202 R12: 000055ee08d2d470 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars