====================================== | [ 8.853252][ T92] softirqs last disabled at (412082): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.853254][ T92] Preemption disabled at: | [ 8.853255][ T92] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.853263][ T92] Tainted: [W]=WARN [ 8.853264][ T92] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.853266][ T92] Call Trace: [ 8.853267][ T92] [ 8.853269][ T92] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.853274][ T92] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.853276][ T92] __might_resched.cold (kernel/sched/core.c:9234) [ 8.853281][ T92] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.853285][ T92] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.853289][ T92] __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)) [ 8.853291][ T92] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.853297][ T92] ? 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) [ 8.853299][ T92] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.853302][ T92] put_chars (drivers/char/virtio_console.c:1176) [ 8.853304][ T92] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.853308][ T92] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.853312][ T92] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.853315][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853320][ T92] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.853322][ T92] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.853329][ T92] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.853332][ T92] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.853336][ T92] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.853338][ T92] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.853342][ T92] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.853346][ T92] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.853347][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853352][ T92] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.853355][ T92] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.853356][ T92] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.853358][ T92] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.853362][ T92] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.853363][ T92] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.853366][ T92] vprintk_emit (kernel/printk/printk.c:2479) [ 8.853369][ T92] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.853371][ T92] ? write_profile (profile.c:?) [ 8.853375][ T92] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.853381][ T92] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.853386][ T92] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.853390][ T92] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 8.853396][ T92] dev_printk_emit (drivers/base/core.c:5011) [ 8.853399][ T92] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.853402][ T92] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.853407][ T92] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.853412][ T92] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.853414][ T92] ? netdev_notice (net/core/dev.c:13194) [ 8.853417][ T92] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.853421][ T92] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.853423][ T92] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.853426][ T92] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.853428][ T92] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.853431][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853433][ T92] ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898) [ 8.853438][ T92] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 8.853441][ T92] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.853443][ T92] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.853446][ T92] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.853452][ T92] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.853455][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853457][ T92] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.853459][ T92] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.853460][ T92] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.853463][ T92] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.853465][ T92] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.853469][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853474][ T92] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.853475][ T92] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.853478][ T92] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.853480][ T92] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.853481][ T92] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.853483][ T92] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.853485][ T92] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.853487][ T92] ? __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) [ 8.853490][ T92] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.853492][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853493][ T92] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.853496][ T92] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.853498][ T92] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.853500][ T92] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.853505][ T92] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.853508][ T92] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 8.853516][ T92] rtnl_setlink (net/core/rtnetlink.c:3596) [ 8.853519][ T92] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.853521][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853543][ T92] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.853545][ T92] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.853548][ T92] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.853549][ T92] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.853551][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853555][ T92] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.853557][ T92] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.853559][ T92] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.853561][ T92] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.853565][ T92] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.853567][ T92] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.853571][ T92] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.853572][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853576][ T92] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.853578][ T92] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.853582][ T92] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.853585][ T92] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.853588][ T92] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.853595][ T92] ? 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)) [ 8.853596][ T92] ? 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)) [ 8.853601][ T92] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.853605][ T92] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.853608][ T92] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.853612][ T92] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.853616][ T92] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.853620][ T92] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.853623][ T92] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.853626][ T92] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 8.853631][ T92] ? __ia32_sys_getpeername (net/socket.c:2235) [ 8.853641][ T92] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 8.853647][ T92] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 8.853649][ T92] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 8.853652][ T92] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 8.853654][ T92] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 8.853655][ T92] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.853657][ T92] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.853659][ T92] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.853662][ T92] RIP: 0033:0x7f5bf8e6754e [ 8.853665][ T92] 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 [ 8.853667][ T92] RSP: 002b:00007ffc658c5340 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 8.853670][ T92] RAX: ffffffffffffffda RBX: 0000557a76dfef40 RCX: 00007f5bf8e6754e [ 8.853671][ T92] RDX: 0000000000000030 RSI: 0000557a76fabba0 RDI: 0000000000000024 [ 8.853672][ T92] RBP: 00007ffc658c5350 R08: 00007ffc658c53a0 R09: 0000000000000080 [ 8.853672][ T92] R10: 0000000000000000 R11: 0000000000000202 R12: 0000557a76fad2c0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars