====================================== | [ 10.085698][ T216] softirqs last disabled at (16148): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.085701][ T216] Preemption disabled at: | [ 10.085702][ T216] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.085710][ T216] Tainted: [W]=WARN [ 10.085711][ T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.085712][ T216] Call Trace: [ 10.085714][ T216] [ 10.085715][ T216] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.085721][ T216] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.085723][ T216] __might_resched.cold (kernel/sched/core.c:9234) [ 10.085727][ T216] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.085731][ T216] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.085736][ T216] __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)) [ 10.085737][ T216] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.085744][ T216] ? 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) [ 10.085746][ T216] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.085750][ T216] put_chars (drivers/char/virtio_console.c:1176) [ 10.085753][ T216] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.085757][ T216] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.085761][ T216] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.085765][ T216] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.085767][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.085768][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.085772][ T216] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.085775][ T216] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 10.085778][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085781][ T216] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.085785][ T216] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.085788][ T216] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.085790][ T216] ? 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)) [ 10.085793][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085795][ T216] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.085799][ T216] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.085803][ T216] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.085805][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.085810][ T216] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.085813][ T216] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.085815][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085816][ T216] ? 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) [ 10.085820][ T216] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.085822][ T216] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.085825][ T216] vprintk_emit (kernel/printk/printk.c:2479) [ 10.085827][ T216] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.085829][ T216] ? write_profile (profile.c:?) [ 10.085832][ T216] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 10.085839][ T216] dev_vprintk_emit (drivers/base/core.c:5000) [ 10.085844][ T216] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 10.085848][ T216] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 10.085854][ T216] dev_printk_emit (drivers/base/core.c:5011) [ 10.085856][ T216] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 10.085860][ T216] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 10.085865][ T216] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 10.085871][ T216] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.085874][ T216] ? netdev_notice (net/core/dev.c:13194) [ 10.085876][ T216] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.085879][ T216] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.085882][ T216] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.085885][ T216] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.085888][ T216] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.085890][ T216] ? 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)) [ 10.085895][ T216] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.085897][ T216] ? write_profile (profile.c:?) [ 10.085900][ T216] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.085906][ T216] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.085909][ T216] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.085911][ T216] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.085913][ T216] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.085915][ T216] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.085918][ T216] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.085920][ T216] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.085922][ T216] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.085925][ T216] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.085926][ T216] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.085927][ T216] ? kasan_save_track (mm/kasan/common.c:78) [ 10.085929][ T216] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.085931][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.085933][ T216] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.085935][ T216] ? ___sys_sendmsg (net/socket.c:2758) [ 10.085939][ T216] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.085941][ T216] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.085944][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085945][ T216] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.085947][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085948][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085950][ T216] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.085952][ T216] ? __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) [ 10.085955][ T216] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.085957][ T216] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.085960][ T216] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.085961][ T216] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.085966][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.085969][ T216] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.085974][ T216] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.085979][ T216] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.085981][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.085986][ T216] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.085987][ T216] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.085989][ T216] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.085991][ T216] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.085995][ T216] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.085997][ T216] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.086000][ T216] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.086001][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.086006][ T216] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.086008][ T216] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.086011][ T216] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.086014][ T216] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.086017][ T216] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.086024][ T216] ? 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)) [ 10.086026][ T216] ? 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)) [ 10.086030][ T216] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.086034][ T216] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.086037][ T216] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.086041][ T216] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.086045][ T216] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.086049][ T216] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.086051][ T216] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.086056][ T216] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.086059][ T216] ____sys_sendmsg (net/socket.c:2713) [ 10.086061][ T216] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.086063][ T216] ? sock_write_iter (net/socket.c:1269) [ 10.086065][ T216] ? move_addr_to_kernel (net/socket.c:258) [ 10.086072][ T216] ___sys_sendmsg (net/socket.c:2767) [ 10.086075][ T216] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.086092][ T216] __sys_sendmsg (net/socket.c:2799) [ 10.086094][ T216] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.086105][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.086109][ T216] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.086112][ T216] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.086115][ T216] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.086117][ T216] RIP: 0033:0x7f381c10454e [ 10.086121][ T216] 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 [ 10.086122][ T216] RSP: 002b:00007fffc7355950 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.086125][ T216] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f381c10454e [ 10.086126][ T216] RDX: 0000000000000000 RSI: 00007fffc7355a00 RDI: 0000000000000005 [ 10.086127][ T216] RBP: 00007fffc7355960 R08: 0000000000000000 R09: 0000000000000000 [ 10.086128][ T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919eb3 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars