====================================== | [ 9.563398][ T221] softirqs last disabled at (19868): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.563400][ T221] Preemption disabled at: | [ 9.563401][ T221] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.563409][ T221] Tainted: [W]=WARN [ 9.563410][ T221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.563412][ T221] Call Trace: [ 9.563413][ T221] [ 9.563415][ T221] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.563421][ T221] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.563422][ T221] __might_resched.cold (kernel/sched/core.c:9234) [ 9.563426][ T221] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.563430][ T221] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.563435][ T221] __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)) [ 9.563437][ T221] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.563443][ T221] ? 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) [ 9.563446][ T221] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.563449][ T221] put_chars (drivers/char/virtio_console.c:1176) [ 9.563452][ T221] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.563458][ T221] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.563466][ T221] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.563469][ T221] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.563473][ T221] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.563477][ T221] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.563479][ T221] ? 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)) [ 9.563482][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563484][ T221] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.563488][ T221] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.563492][ T221] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.563494][ T221] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.563500][ T221] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.563502][ T221] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.563504][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563506][ T221] ? 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) [ 9.563510][ T221] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.563511][ T221] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.563514][ T221] vprintk_emit (kernel/printk/printk.c:2479) [ 9.563517][ T221] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.563519][ T221] ? save_trace (kernel/locking/lockdep.c:589) [ 9.563523][ T221] _printk (kernel/printk/printk.c:2504) [ 9.563526][ T221] ? snapshot_read.cold (user.c:?) [ 9.563530][ T221] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.563532][ T221] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 9.563536][ T221] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 9.563538][ T221] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.563541][ T221] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.563543][ T221] ? netdev_notice (net/core/dev.c:13194) [ 9.563546][ T221] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.563549][ T221] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.563551][ T221] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.563555][ T221] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.563557][ T221] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.563559][ T221] ? 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)) [ 9.563564][ T221] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.563567][ T221] ? __kernel_text_address (kernel/extable.c:79) [ 9.563569][ T221] ? write_profile (profile.c:?) [ 9.563573][ T221] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.563579][ T221] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.563582][ T221] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 9.563584][ T221] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.563585][ T221] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 9.563588][ T221] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 9.563591][ T221] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.563593][ T221] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.563595][ T221] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.563597][ T221] ? kasan_save_stack (mm/kasan/common.c:58) [ 9.563599][ T221] ? kasan_save_stack (mm/kasan/common.c:57) [ 9.563600][ T221] ? kasan_save_track (mm/kasan/common.c:78) [ 9.563601][ T221] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 9.563604][ T221] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.563606][ T221] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 9.563608][ T221] ? ___sys_sendmsg (net/socket.c:2758) [ 9.563612][ T221] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.563614][ T221] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.563617][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563618][ T221] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.563620][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563621][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563623][ T221] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.563625][ T221] ? __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) [ 9.563628][ T221] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.563630][ T221] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.563633][ T221] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.563634][ T221] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.563639][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563641][ T221] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 9.563646][ T221] rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.563652][ T221] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.563653][ T221] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.563658][ T221] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.563660][ T221] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.563662][ T221] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.563663][ T221] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.563667][ T221] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.563669][ T221] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.563672][ T221] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.563673][ T221] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.563678][ T221] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.563680][ T221] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.563683][ T221] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.563686][ T221] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.563689][ T221] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.563695][ T221] ? 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)) [ 9.563697][ T221] ? 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)) [ 9.563702][ T221] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.563706][ T221] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.563708][ T221] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.563712][ T221] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.563716][ T221] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.563720][ T221] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.563721][ T221] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 9.563727][ T221] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.563729][ T221] ____sys_sendmsg (net/socket.c:2713) [ 9.563732][ T221] ? copy_msghdr_from_user (net/socket.c:2650) [ 9.563734][ T221] ? sock_write_iter (net/socket.c:1269) [ 9.563735][ T221] ? move_addr_to_kernel (net/socket.c:258) [ 9.563745][ T221] ___sys_sendmsg (net/socket.c:2767) [ 9.563748][ T221] ? copy_msghdr_from_user (net/socket.c:2619) [ 9.563763][ T221] __sys_sendmsg (net/socket.c:2799) [ 9.563766][ T221] ? __sys_sendmsg_sock (net/socket.c:2780) [ 9.563772][ T221] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.563775][ T221] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.563778][ T221] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.563781][ T221] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.563783][ T221] RIP: 0033:0x7f5db989f54e [ 9.563787][ T221] 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 [ 9.563788][ T221] RSP: 002b:00007ffc6b70aff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.563791][ T221] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5db989f54e [ 9.563792][ T221] RDX: 0000000000000000 RSI: 00007ffc6b70b0a0 RDI: 0000000000000005 [ 9.563793][ T221] RBP: 00007ffc6b70b000 R08: 0000000000000000 R09: 0000000000000000 [ 9.563794][ T221] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91c719 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars