====================================== | [ 12.464216][ T183] softirqs last disabled at (32496): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 12.464219][ T183] Preemption disabled at: | [ 12.464219][ T183] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.464229][ T183] Tainted: [W]=WARN [ 12.464229][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.464231][ T183] Call Trace: [ 12.464233][ T183] [ 12.464234][ T183] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.464241][ T183] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.464242][ T183] __might_resched.cold (kernel/sched/core.c:9234) [ 12.464247][ T183] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.464251][ T183] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.464257][ T183] __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)) [ 12.464260][ T183] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.464266][ T183] ? 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) [ 12.464269][ T183] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.464272][ T183] put_chars (drivers/char/virtio_console.c:1176) [ 12.464276][ T183] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.464280][ T183] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.464285][ T183] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.464288][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464294][ T183] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.464297][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.464303][ T183] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.464307][ T183] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.464312][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.464316][ T183] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.464321][ T183] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.464326][ T183] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.464328][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464333][ T183] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.464336][ T183] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.464338][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.464340][ T183] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.464344][ T183] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.464346][ T183] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.464349][ T183] vprintk_emit (kernel/printk/printk.c:2479) [ 12.464352][ T183] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.464354][ T183] ? write_profile (profile.c:?) [ 12.464356][ T183] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 12.464363][ T183] dev_vprintk_emit (drivers/base/core.c:5000) [ 12.464368][ T183] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 12.464373][ T183] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 12.464379][ T183] dev_printk_emit (drivers/base/core.c:5011) [ 12.464381][ T183] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 12.464385][ T183] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 12.464391][ T183] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 12.464396][ T183] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.464399][ T183] ? netdev_notice (net/core/dev.c:13194) [ 12.464401][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.464404][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.464407][ T183] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.464411][ T183] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.464414][ T183] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 12.464417][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464419][ T183] ? 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)) [ 12.464421][ T183] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 12.464424][ T183] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 12.464426][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.464429][ T183] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 12.464434][ T183] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.464437][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464440][ T183] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.464442][ T183] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.464444][ T183] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.464446][ T183] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.464449][ T183] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.464454][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464458][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.464461][ T183] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 12.464464][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.464466][ T183] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.464467][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.464469][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.464470][ T183] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.464473][ T183] ? __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) [ 12.464477][ T183] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.464479][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464481][ T183] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 12.464484][ T183] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.464486][ T183] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.464489][ T183] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.464495][ T183] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.464498][ T183] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 12.464505][ T183] rtnl_setlink (net/core/rtnetlink.c:3596) [ 12.464509][ T183] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 12.464511][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464534][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.464536][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.464539][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.464541][ T183] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.464543][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464548][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.464550][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.464552][ T183] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 12.464554][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.464558][ T183] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 12.464561][ T183] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.464564][ T183] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.464566][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464571][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.464573][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.464576][ T183] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.464580][ T183] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.464583][ T183] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.464590][ T183] ? 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)) [ 12.464592][ T183] ? 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)) [ 12.464597][ T183] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.464601][ T183] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.464604][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.464609][ T183] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.464613][ T183] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.464617][ T183] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.464621][ T183] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.464625][ T183] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 12.464629][ T183] ? __ia32_sys_getpeername (net/socket.c:2235) [ 12.464644][ T183] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 12.464649][ T183] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 12.464651][ T183] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.464655][ T183] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.464656][ T183] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 12.464659][ T183] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.464661][ T183] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.464663][ T183] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.464665][ T183] RIP: 0033:0x7f655d8d954e [ 12.464670][ T183] 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 [ 12.464671][ T183] RSP: 002b:00007ffde51d2b60 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 12.464674][ T183] RAX: ffffffffffffffda RBX: 00005595705448e0 RCX: 00007f655d8d954e [ 12.464675][ T183] RDX: 0000000000000030 RSI: 000055957059c880 RDI: 0000000000000016 [ 12.464676][ T183] RBP: 00007ffde51d2b70 R08: 00007ffde51d2bc0 R09: 0000000000000080 [ 12.464677][ T183] R10: 0000000000000000 R11: 0000000000000202 R12: 00005595706c1d50 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars