====================================== | [ 8.983250][ T139] softirqs last disabled at (15902): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.983252][ T139] Preemption disabled at: | [ 8.983253][ T139] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.983262][ T139] Tainted: [W]=WARN [ 8.983263][ T139] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.983265][ T139] Call Trace: [ 8.983267][ T139] [ 8.983268][ T139] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.983274][ T139] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.983276][ T139] __might_resched.cold (kernel/sched/core.c:9234) [ 8.983280][ T139] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.983285][ T139] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.983289][ T139] __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)) [ 8.983292][ T139] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.983298][ T139] ? 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) [ 8.983301][ T139] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.983304][ T139] put_chars (drivers/char/virtio_console.c:1176) [ 8.983308][ T139] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.983312][ T139] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.983316][ T139] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.983320][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983321][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983326][ T139] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.983330][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983333][ T139] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.983337][ T139] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.983341][ T139] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.983342][ T139] ? 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)) [ 8.983345][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983348][ T139] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.983351][ T139] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.983356][ T139] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.983357][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983362][ T139] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.983365][ T139] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.983367][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983369][ T139] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.983372][ T139] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.983374][ T139] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.983377][ T139] vprintk_emit (kernel/printk/printk.c:2479) [ 8.983380][ T139] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.983382][ T139] ? __kernel_text_address (kernel/extable.c:79) [ 8.983385][ T139] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.983389][ T139] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 8.983395][ T139] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.983401][ T139] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.983409][ T139] dev_printk_emit (drivers/base/core.c:5011) [ 8.983412][ T139] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.983416][ T139] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.983421][ T139] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.983426][ T139] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.983428][ T139] ? netdev_notice (net/core/dev.c:13194) [ 8.983431][ T139] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.983435][ T139] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.983437][ T139] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.983441][ T139] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.983443][ T139] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.983449][ T139] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.983451][ T139] ? __kernel_text_address (kernel/extable.c:79) [ 8.983453][ T139] ? write_profile (profile.c:?) [ 8.983458][ T139] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.983463][ T139] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.983467][ T139] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 8.983470][ T139] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.983471][ T139] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 8.983474][ T139] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 8.983478][ T139] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.983480][ T139] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.983482][ T139] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.983484][ T139] ? kasan_save_stack (mm/kasan/common.c:58) [ 8.983486][ T139] ? kasan_save_stack (mm/kasan/common.c:57) [ 8.983487][ T139] ? kasan_save_track (mm/kasan/common.c:78) [ 8.983490][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983492][ T139] ? do_one_broadcast (./include/linux/skbuff.h:3420 net/netlink/af_netlink.c:1463) [ 8.983495][ T139] ? ___sys_sendmsg (net/socket.c:2758 (discriminator 1)) [ 8.983500][ T139] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.983502][ T139] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 8.983505][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983507][ T139] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.983509][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983510][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983512][ T139] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.983515][ T139] ? __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) [ 8.983519][ T139] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.983522][ T139] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 8.983526][ T139] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.983528][ T139] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.983534][ T139] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 8.983540][ T139] rtnl_newlink (net/core/rtnetlink.c:4215) [ 8.983545][ T139] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.983548][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983552][ T139] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.983554][ T139] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.983556][ T139] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.983558][ T139] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.983562][ T139] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 8.983564][ T139] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.983568][ T139] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.983569][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983574][ T139] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.983575][ T139] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.983579][ T139] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.983581][ T139] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.983585][ T139] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.983591][ T139] ? 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)) [ 8.983593][ T139] ? 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)) [ 8.983598][ T139] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.983602][ T139] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.983605][ T139] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.983609][ T139] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.983613][ T139] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.983617][ T139] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.983622][ T139] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 8.983625][ T139] ? copy_msghdr_from_user (net/socket.c:2650) [ 8.983629][ T139] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 8.983631][ T139] ? move_addr_to_kernel (net/socket.c:258) [ 8.983640][ T139] ___sys_sendmsg (net/socket.c:2767) [ 8.983643][ T139] ? copy_msghdr_from_user (net/socket.c:2619) [ 8.983660][ T139] __sys_sendmsg (net/socket.c:2799) [ 8.983663][ T139] ? __sys_sendmsg_sock (net/socket.c:2780) [ 8.983669][ T139] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.983672][ T139] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.983675][ T139] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.983678][ T139] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.983681][ T139] RIP: 0033:0x7f37d3b4254e [ 8.983684][ T139] 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 [ 8.983686][ T139] RSP: 002b:00007ffcce460b20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 8.983689][ T139] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f37d3b4254e [ 8.983690][ T139] RDX: 0000000000000000 RSI: 00007ffcce460bd0 RDI: 0000000000000003 [ 8.983691][ T139] RBP: 00007ffcce460b30 R08: 0000000000000000 R09: 0000000000000000 [ 8.983692][ T139] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91a7ac Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars