====================================== | [ 11.058102][ T183] softirqs last disabled at (32292): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.058105][ T183] Preemption disabled at: | [ 11.058106][ T183] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.058118][ T183] Tainted: [W]=WARN [ 11.058119][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.058122][ T183] Call Trace: [ 11.058124][ T183] [ 11.058126][ T183] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.058134][ T183] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.058137][ T183] __might_resched.cold (kernel/sched/core.c:9234) [ 11.058143][ T183] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.058148][ 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) [ 11.058157][ 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)) [ 11.058160][ T183] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.058170][ 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) [ 11.058173][ T183] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.058179][ T183] put_chars (drivers/char/virtio_console.c:1176) [ 11.058184][ T183] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.058190][ T183] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.058198][ T183] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.058202][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058211][ T183] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.058216][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.058225][ T183] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.058231][ T183] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.058239][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.058242][ T183] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.058249][ T183] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.058255][ T183] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.058258][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058267][ T183] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.058272][ T183] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.058274][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.058277][ T183] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.058284][ T183] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.058286][ T183] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.058291][ T183] vprintk_emit (kernel/printk/printk.c:2479) [ 11.058296][ T183] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.058300][ T183] ? write_profile (profile.c:?) [ 11.058303][ T183] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 11.058313][ T183] dev_vprintk_emit (drivers/base/core.c:5000) [ 11.058320][ T183] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 11.058327][ T183] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 11.058337][ T183] dev_printk_emit (drivers/base/core.c:5011) [ 11.058340][ T183] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 11.058347][ T183] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 11.058359][ T183] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 11.058367][ T183] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.058376][ T183] ? netdev_notice (net/core/dev.c:13194) [ 11.058381][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.058386][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.058390][ T183] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.058396][ T183] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.058400][ T183] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.058404][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058407][ 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)) [ 11.058410][ T183] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 11.058415][ T183] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.058419][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.058424][ T183] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.058433][ T183] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.058438][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058443][ T183] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.058445][ T183] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.058447][ T183] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.058451][ T183] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.058455][ T183] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.058463][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058471][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.058474][ T183] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.058479][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.058482][ T183] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.058484][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.058486][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.058489][ T183] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.058493][ 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) [ 11.058498][ T183] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.058501][ T183] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.058504][ T183] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.058508][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058512][ T183] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.058515][ T183] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.058528][ T183] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 11.058540][ T183] rtnl_setlink (net/core/rtnetlink.c:3596) [ 11.058545][ T183] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.058548][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058590][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.058593][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.058598][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.058601][ T183] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.058604][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058612][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.058616][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.058620][ T183] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.058624][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.058630][ T183] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.058634][ T183] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.058640][ T183] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.058642][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058650][ T183] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.058653][ T183] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.058659][ T183] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.058664][ T183] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.058669][ T183] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.058681][ 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)) [ 11.058683][ 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)) [ 11.058692][ T183] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.058699][ T183] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.058702][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.058711][ T183] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.058718][ T183] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.058724][ T183] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.058729][ T183] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.058735][ T183] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 11.058740][ T183] ? __ia32_sys_getpeername (net/socket.c:2235) [ 11.058759][ T183] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 11.058768][ T183] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 11.058771][ T183] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 11.058776][ T183] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 11.058778][ T183] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 11.058781][ T183] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.058784][ T183] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.058788][ T183] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.058791][ T183] RIP: 0033:0x7f89ff12554e [ 11.058797][ 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 [ 11.058799][ T183] RSP: 002b:00007ffcb67d2470 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 11.058803][ T183] RAX: ffffffffffffffda RBX: 000056545cd6cf10 RCX: 00007f89ff12554e [ 11.058804][ T183] RDX: 0000000000000030 RSI: 000056545cbec5c0 RDI: 000000000000001a [ 11.058806][ T183] RBP: 00007ffcb67d2480 R08: 00007ffcb67d24d0 R09: 0000000000000080 [ 11.058807][ T183] R10: 0000000000000000 R11: 0000000000000202 R12: 000056545cd616d0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars