====================================== | [ 10.157608][ T88] softirqs last disabled at (420940): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.157611][ T88] Preemption disabled at: | [ 10.157612][ T88] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.157622][ T88] Tainted: [W]=WARN [ 10.157623][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.157625][ T88] Call Trace: [ 10.157626][ T88] [ 10.157628][ T88] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.157634][ T88] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.157636][ T88] __might_resched.cold (kernel/sched/core.c:9234) [ 10.157640][ T88] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.157644][ T88] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.157649][ T88] __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)) [ 10.157651][ T88] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.157657][ T88] ? 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) [ 10.157660][ T88] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.157664][ T88] put_chars (drivers/char/virtio_console.c:1176) [ 10.157667][ T88] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.157672][ T88] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.157676][ T88] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.157679][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.157681][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157682][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157686][ T88] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.157688][ T88] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 10.157691][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.157695][ T88] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.157699][ T88] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.157703][ T88] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.157704][ T88] ? 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)) [ 10.157707][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.157709][ T88] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.157713][ T88] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.157717][ T88] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.157719][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157724][ T88] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.157726][ T88] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.157728][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.157730][ T88] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.157734][ T88] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.157735][ T88] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.157738][ T88] vprintk_emit (kernel/printk/printk.c:2479) [ 10.157742][ T88] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.157744][ T88] ? write_profile (profile.c:?) [ 10.157747][ T88] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 10.157754][ T88] dev_vprintk_emit (drivers/base/core.c:5000) [ 10.157759][ T88] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 10.157763][ T88] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 10.157769][ T88] dev_printk_emit (drivers/base/core.c:5011) [ 10.157772][ T88] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 10.157776][ T88] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 10.157781][ T88] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 10.157786][ T88] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.157788][ T88] ? netdev_notice (net/core/dev.c:13194) [ 10.157791][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.157795][ T88] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.157798][ T88] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.157801][ T88] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.157803][ T88] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.157806][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157808][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5106) [ 10.157810][ T88] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 10.157813][ T88] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.157815][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.157818][ T88] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.157824][ T88] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.157827][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157830][ T88] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.157831][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.157832][ T88] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.157835][ T88] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.157837][ T88] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.157842][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157846][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.157848][ T88] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.157851][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.157853][ T88] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.157854][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.157856][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.157858][ T88] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.157861][ T88] ? __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) [ 10.157864][ T88] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.157866][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157868][ T88] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.157871][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.157873][ T88] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.157875][ T88] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.157881][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.157884][ T88] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.157892][ T88] rtnl_setlink (net/core/rtnetlink.c:3596) [ 10.157895][ T88] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.157897][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157920][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.157922][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.157925][ T88] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.157927][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.157929][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157933][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.157935][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.157938][ T88] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.157940][ T88] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.157944][ T88] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.157946][ T88] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.157949][ T88] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.157951][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157955][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.157957][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.157961][ T88] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.157964][ T88] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.157967][ T88] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.157974][ T88] ? 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)) [ 10.157975][ T88] ? 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)) [ 10.157980][ T88] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.157984][ T88] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.157986][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.157988][ T88] ? do_raw_spin_trylock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:93 kernel/locking/spinlock_debug.c:123) [ 10.157992][ T88] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.157996][ T88] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.157999][ T88] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.158003][ T88] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.158006][ T88] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 10.158011][ T88] ? __ia32_sys_getpeername (net/socket.c:2235) [ 10.158022][ T88] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 10.158027][ T88] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 10.158030][ T88] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.158033][ T88] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.158035][ T88] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 10.158037][ T88] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.158039][ T88] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.158041][ T88] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.158044][ T88] RIP: 0033:0x7f43d08fe54e [ 10.158048][ T88] 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 [ 10.158049][ T88] RSP: 002b:00007fff0c471860 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 10.158052][ T88] RAX: ffffffffffffffda RBX: 000055b58b6ebf50 RCX: 00007f43d08fe54e [ 10.158053][ T88] RDX: 0000000000000030 RSI: 000055b58b6e88c0 RDI: 000000000000001e [ 10.158054][ T88] RBP: 00007fff0c471870 R08: 00007fff0c4718c0 R09: 0000000000000080 [ 10.158055][ T88] R10: 0000000000000000 R11: 0000000000000202 R12: 000055b58b840fe0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars