====================================== | [ 10.465302][ T199] softirqs last disabled at (43698): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.465305][ T199] Preemption disabled at: | [ 10.465305][ T199] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.465314][ T199] Tainted: [W]=WARN [ 10.465315][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.465317][ T199] Call Trace: [ 10.465318][ T199] [ 10.465320][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.465326][ T199] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.465328][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 10.465332][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.465336][ T199] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.465341][ T199] __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)) [ 10.465343][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.465350][ T199] ? 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) [ 10.465353][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.465357][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 10.465359][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.465362][ T199] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.465367][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.465371][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465377][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.465380][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465386][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.465390][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.465392][ T199] ? 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)) [ 10.465395][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465397][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.465401][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.465406][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.465408][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465413][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.465416][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.465418][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465420][ T199] ? 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) [ 10.465424][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.465425][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.465428][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 10.465431][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.465433][ T199] ? __kernel_text_address (kernel/extable.c:79) [ 10.465436][ T199] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 10.465439][ T199] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 10.465445][ T199] dev_vprintk_emit (drivers/base/core.c:5000) [ 10.465450][ T199] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 10.465458][ T199] dev_printk_emit (drivers/base/core.c:5011) [ 10.465461][ T199] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 10.465465][ T199] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 10.465470][ T199] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 10.465477][ T199] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.465479][ T199] ? netdev_notice (net/core/dev.c:13194) [ 10.465482][ T199] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.465485][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.465488][ T199] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.465492][ T199] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.465494][ T199] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.465497][ T199] ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 10.465500][ T199] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.465503][ T199] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.465506][ T199] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.465512][ T199] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.465515][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465518][ T199] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.465519][ T199] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.465521][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.465523][ T199] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.465526][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.465533][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465535][ T199] ? lock_pin_lock (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:6004 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 10.465537][ T199] ? __lock_acquire (kernel/locking/lockdep.c:433 kernel/locking/lockdep.c:5242) [ 10.465541][ T199] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.465543][ T199] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.465545][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465547][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.465549][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465550][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465552][ T199] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.465554][ T199] ? __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) [ 10.465557][ T199] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.465559][ T199] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.465561][ T199] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.465564][ T199] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.465565][ T199] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.465569][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465572][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.465580][ T199] rtnl_setlink (net/core/rtnetlink.c:3596) [ 10.465583][ T199] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.465584][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465609][ T199] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.465611][ T199] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.465614][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.465616][ T199] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.465618][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465623][ T199] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.465625][ T199] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.465627][ T199] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.465629][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.465632][ T199] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.465635][ T199] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.465638][ T199] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.465639][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465644][ T199] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.465646][ T199] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.465650][ T199] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.465653][ T199] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.465656][ T199] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.465663][ T199] ? 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)) [ 10.465665][ T199] ? 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)) [ 10.465670][ T199] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.465674][ T199] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.465678][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.465681][ T199] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.465686][ T199] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.465687][ T199] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.465690][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.465695][ T199] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.465698][ T199] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 10.465702][ T199] __sys_sendto (net/socket.c:2281) [ 10.465705][ T199] ? __ia32_sys_getpeername (net/socket.c:2235) [ 10.465720][ T199] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 10.465722][ T199] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.465726][ T199] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.465729][ T199] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 10.465732][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.465734][ T199] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.465736][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.465739][ T199] RIP: 0033:0x7fea0bbc054e [ 10.465743][ T199] 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 [ 10.465745][ T199] RSP: 002b:00007ffe7e4eccd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 10.465747][ T199] RAX: ffffffffffffffda RBX: 0000563a87536080 RCX: 00007fea0bbc054e [ 10.465749][ T199] RDX: 0000000000000030 RSI: 0000563a87529050 RDI: 0000000000000012 [ 10.465749][ T199] RBP: 00007ffe7e4ecce0 R08: 00007ffe7e4ecd30 R09: 0000000000000080 [ 10.465750][ T199] R10: 0000000000000000 R11: 0000000000000202 R12: 0000563a8768ca90 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars