====================================== | [ 8.707096][ T140] softirqs last disabled at (22404): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.707098][ T140] Preemption disabled at: | [ 8.707099][ T140] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.707107][ T140] Tainted: [W]=WARN [ 8.707108][ T140] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.707110][ T140] Call Trace: [ 8.707111][ T140] [ 8.707113][ T140] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.707118][ T140] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.707120][ T140] __might_resched.cold (kernel/sched/core.c:9234) [ 8.707125][ T140] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.707129][ T140] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.707133][ T140] __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)) [ 8.707136][ T140] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.707142][ T140] ? 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) [ 8.707144][ T140] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.707147][ T140] put_chars (drivers/char/virtio_console.c:1176) [ 8.707150][ T140] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.707155][ T140] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.707158][ T140] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.707162][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707163][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707167][ T140] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.707171][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707175][ T140] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.707178][ T140] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.707181][ T140] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.707183][ T140] ? 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)) [ 8.707186][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707188][ T140] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.707192][ T140] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.707195][ T140] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.707197][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707202][ T140] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.707204][ T140] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.707206][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707208][ T140] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.707212][ T140] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.707213][ T140] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.707216][ T140] vprintk_emit (kernel/printk/printk.c:2479) [ 8.707219][ T140] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.707221][ T140] ? __kernel_text_address (kernel/extable.c:79) [ 8.707224][ T140] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.707228][ T140] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 8.707236][ T140] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.707241][ T140] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.707249][ T140] dev_printk_emit (drivers/base/core.c:5011) [ 8.707251][ T140] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.707255][ T140] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.707260][ T140] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.707265][ T140] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.707267][ T140] ? netdev_notice (net/core/dev.c:13194) [ 8.707269][ T140] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.707273][ T140] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.707276][ T140] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.707279][ T140] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.707281][ T140] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.707287][ T140] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.707289][ T140] ? __kernel_text_address (kernel/extable.c:79) [ 8.707291][ T140] ? write_profile (profile.c:?) [ 8.707295][ T140] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.707301][ T140] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.707304][ T140] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 8.707307][ T140] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.707308][ T140] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 8.707311][ T140] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 8.707315][ T140] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.707318][ T140] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.707319][ T140] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.707321][ T140] ? kasan_save_stack (mm/kasan/common.c:58) [ 8.707323][ T140] ? kasan_save_stack (mm/kasan/common.c:57) [ 8.707325][ T140] ? kasan_save_track (mm/kasan/common.c:78) [ 8.707327][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707329][ T140] ? do_one_broadcast (./include/linux/skbuff.h:3422 net/netlink/af_netlink.c:1463) [ 8.707332][ T140] ? ___sys_sendmsg (net/socket.c:2758 (discriminator 1)) [ 8.707337][ T140] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.707338][ T140] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 8.707341][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707343][ T140] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.707345][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707346][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707348][ T140] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.707351][ T140] ? __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) [ 8.707355][ T140] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.707358][ T140] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 8.707361][ T140] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.707363][ T140] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.707369][ T140] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 8.707374][ T140] rtnl_newlink (net/core/rtnetlink.c:4215) [ 8.707380][ T140] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.707382][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707386][ T140] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.707388][ T140] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.707390][ T140] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.707392][ T140] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.707395][ T140] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.707398][ T140] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.707401][ T140] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.707402][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707406][ T140] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.707408][ T140] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.707412][ T140] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.707414][ T140] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.707417][ T140] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.707423][ T140] ? 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)) [ 8.707425][ T140] ? 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)) [ 8.707429][ T140] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.707433][ T140] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.707435][ T140] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.707439][ T140] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.707443][ T140] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.707447][ T140] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.707452][ T140] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 8.707454][ T140] ? copy_msghdr_from_user (net/socket.c:2650) [ 8.707457][ T140] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 8.707459][ T140] ? move_addr_to_kernel (net/socket.c:258) [ 8.707466][ T140] ___sys_sendmsg (net/socket.c:2767) [ 8.707469][ T140] ? copy_msghdr_from_user (net/socket.c:2619) [ 8.707485][ T140] __sys_sendmsg (net/socket.c:2799) [ 8.707488][ T140] ? __sys_sendmsg_sock (net/socket.c:2780) [ 8.707494][ T140] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.707497][ T140] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.707500][ T140] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.707503][ T140] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.707505][ T140] RIP: 0033:0x7f16e61e754e [ 8.707509][ T140] 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 [ 8.707511][ T140] RSP: 002b:00007ffc0ccd9de0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 8.707513][ T140] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f16e61e754e [ 8.707515][ T140] RDX: 0000000000000000 RSI: 00007ffc0ccd9e90 RDI: 0000000000000003 [ 8.707516][ T140] RBP: 00007ffc0ccd9df0 R08: 0000000000000000 R09: 0000000000000000 [ 8.707516][ T140] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90d2d0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars