====================================== | [ 9.406462][ T86] softirqs last disabled at (334636): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.406465][ T86] Preemption disabled at: | [ 9.406465][ T86] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.406473][ T86] Tainted: [W]=WARN [ 9.406474][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.406476][ T86] Call Trace: [ 9.406478][ T86] [ 9.406479][ T86] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.406485][ T86] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.406486][ T86] __might_resched.cold (kernel/sched/core.c:9234) [ 9.406490][ T86] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.406501][ T86] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.406505][ T86] __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)) [ 9.406507][ T86] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.406513][ T86] ? 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) [ 9.406516][ T86] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.406520][ T86] put_chars (drivers/char/virtio_console.c:1176) [ 9.406522][ T86] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.406526][ T86] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.406530][ T86] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.406534][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406539][ T86] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.406542][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406548][ T86] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.406551][ T86] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.406553][ T86] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 9.406556][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406558][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.406562][ T86] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.406566][ T86] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.406568][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406573][ T86] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.406576][ T86] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.406578][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406579][ T86] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 9.406583][ T86] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.406585][ T86] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.406587][ T86] vprintk_emit (kernel/printk/printk.c:2479) [ 9.406590][ T86] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.406591][ T86] ? __kernel_text_address (kernel/extable.c:79) [ 9.406594][ T86] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.406598][ T86] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 9.406603][ T86] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.406608][ T86] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.406616][ T86] dev_printk_emit (drivers/base/core.c:5011) [ 9.406619][ T86] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.406622][ T86] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.406627][ T86] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.406633][ T86] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.406636][ T86] ? netdev_notice (net/core/dev.c:13194) [ 9.406639][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.406642][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.406644][ T86] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.406648][ T86] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.406650][ T86] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.406653][ T86] ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.406656][ T86] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.406659][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.406661][ T86] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.406667][ T86] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.406670][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406673][ T86] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.406674][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.406676][ T86] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.406678][ T86] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.406680][ T86] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.406685][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406687][ T86] ? irq_matrix_free (kernel/irq/matrix.c:439) [ 9.406690][ T86] ? validate_chain (kernel/locking/lockdep.c:3099 kernel/locking/lockdep.c:3911) [ 9.406693][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.406695][ T86] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.406698][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406699][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.406701][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406702][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406704][ T86] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.406706][ T86] ? __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) [ 9.406709][ T86] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.406710][ T86] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.406712][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.406715][ T86] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.406716][ T86] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.406720][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406723][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406730][ T86] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.406733][ T86] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.406734][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406757][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.406759][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.406761][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.406763][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.406765][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406770][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.406772][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.406773][ T86] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.406775][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.406779][ T86] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.406781][ T86] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.406784][ T86] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.406785][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406790][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.406792][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.406795][ T86] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.406798][ T86] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.406801][ T86] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.406807][ T86] ? 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)) [ 9.406809][ T86] ? 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)) [ 9.406814][ T86] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.406818][ T86] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.406821][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406825][ T86] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.406829][ T86] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.406830][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.406833][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.406838][ T86] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.406841][ T86] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 9.406844][ T86] __sys_sendto (net/socket.c:2281) [ 9.406847][ T86] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.406858][ T86] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 9.406863][ T86] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.406865][ T86] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.406869][ T86] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.406870][ T86] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.406873][ T86] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.406875][ T86] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.406877][ T86] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.406879][ T86] RIP: 0033:0x7f3101d8654e [ 9.406883][ T86] 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 [ 9.406885][ T86] RSP: 002b:00007fff87496530 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.406887][ T86] RAX: ffffffffffffffda RBX: 00005620b53e75b0 RCX: 00007f3101d8654e [ 9.406889][ T86] RDX: 0000000000000030 RSI: 00005620b53f8450 RDI: 000000000000001a [ 9.406890][ T86] RBP: 00007fff87496540 R08: 00007fff87496590 R09: 0000000000000080 [ 9.406890][ T86] R10: 0000000000000000 R11: 0000000000000202 R12: 00005620b5552730 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars