====================================== | [ 10.841974][ T219] softirqs last disabled at (17354): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.841977][ T219] Preemption disabled at: | [ 10.841977][ T219] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.841986][ T219] Tainted: [W]=WARN [ 10.841987][ T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.841989][ T219] Call Trace: [ 10.841990][ T219] [ 10.841992][ T219] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.842003][ T219] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.842004][ T219] __might_resched.cold (kernel/sched/core.c:9234) [ 10.842009][ T219] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.842014][ T219] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.842018][ T219] __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)) [ 10.842020][ T219] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.842027][ T219] ? 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) [ 10.842030][ T219] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.842034][ T219] put_chars (drivers/char/virtio_console.c:1176) [ 10.842036][ T219] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.842043][ T219] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.842051][ T219] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.842054][ T219] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.842058][ T219] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.842062][ T219] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.842064][ T219] ? 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)) [ 10.842068][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842071][ T219] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.842075][ T219] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.842079][ T219] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.842081][ T219] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.842086][ T219] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.842089][ T219] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.842091][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842093][ T219] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.842097][ T219] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.842099][ T219] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.842102][ T219] vprintk_emit (kernel/printk/printk.c:2479) [ 10.842105][ T219] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.842107][ T219] ? save_trace (kernel/locking/lockdep.c:589) [ 10.842111][ T219] _printk (kernel/printk/printk.c:2504) [ 10.842115][ T219] ? snapshot_read.cold (user.c:?) [ 10.842119][ T219] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.842121][ T219] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.842125][ T219] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.842128][ T219] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.842130][ T219] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.842133][ T219] ? netdev_notice (net/core/dev.c:13194) [ 10.842136][ T219] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.842139][ T219] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.842142][ T219] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.842146][ T219] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.842148][ T219] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.842150][ T219] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 10.842156][ T219] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.842158][ T219] ? __kernel_text_address (kernel/extable.c:79) [ 10.842161][ T219] ? write_profile (profile.c:?) [ 10.842165][ T219] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.842171][ T219] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.842175][ T219] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.842177][ T219] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.842178][ T219] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.842181][ T219] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.842185][ T219] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.842187][ T219] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.842189][ T219] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.842192][ T219] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.842194][ T219] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.842195][ T219] ? kasan_save_track (mm/kasan/common.c:78) [ 10.842196][ T219] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.842199][ T219] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.842201][ T219] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.842204][ T219] ? ___sys_sendmsg (net/socket.c:2758) [ 10.842208][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.842210][ T219] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.842213][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842215][ T219] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.842216][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842217][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842219][ T219] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.842221][ T219] ? __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) [ 10.842224][ T219] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.842226][ T219] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.842229][ T219] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.842231][ T219] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.842236][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842238][ T219] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.842243][ T219] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.842249][ T219] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.842251][ T219] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.842255][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.842257][ T219] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.842259][ T219] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.842261][ T219] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.842265][ T219] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.842267][ T219] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.842271][ T219] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.842272][ T219] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.842277][ T219] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.842279][ T219] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.842282][ T219] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.842285][ T219] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.842288][ T219] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.842295][ T219] ? 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)) [ 10.842297][ T219] ? 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)) [ 10.842304][ T219] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.842309][ T219] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.842312][ T219] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.842318][ T219] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.842323][ T219] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.842328][ T219] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.842330][ T219] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.842336][ T219] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.842339][ T219] ____sys_sendmsg (net/socket.c:2713) [ 10.842342][ T219] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.842345][ T219] ? sock_write_iter (net/socket.c:1269) [ 10.842347][ T219] ? move_addr_to_kernel (net/socket.c:258) [ 10.842355][ T219] ___sys_sendmsg (net/socket.c:2767) [ 10.842357][ T219] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.842374][ T219] __sys_sendmsg (net/socket.c:2799) [ 10.842377][ T219] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.842384][ T219] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.842387][ T219] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.842390][ T219] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.842393][ T219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.842396][ T219] RIP: 0033:0x7f82f58e054e [ 10.842400][ T219] 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 [ 10.842402][ T219] RSP: 002b:00007fff90b36ad0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.842404][ T219] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f82f58e054e [ 10.842406][ T219] RDX: 0000000000000000 RSI: 00007fff90b36b80 RDI: 0000000000000005 [ 10.842407][ T219] RBP: 00007fff90b36ae0 R08: 0000000000000000 R09: 0000000000000000 [ 10.842407][ T219] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e436 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars