====================================== | [ 10.523369][ T236] softirqs last disabled at (19494): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.523372][ T236] Preemption disabled at: | [ 10.523372][ T236] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.523380][ T236] Tainted: [W]=WARN [ 10.523381][ T236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.523383][ T236] Call Trace: [ 10.523384][ T236] [ 10.523386][ T236] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.523391][ T236] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.523393][ T236] __might_resched.cold (kernel/sched/core.c:9234) [ 10.523397][ T236] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.523401][ T236] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.523406][ T236] __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)) [ 10.523408][ T236] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.523414][ T236] ? 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) [ 10.523417][ T236] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.523421][ T236] put_chars (drivers/char/virtio_console.c:1176) [ 10.523423][ T236] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.523433][ T236] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.523440][ T236] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.523443][ T236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.523448][ T236] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.523451][ T236] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.523453][ T236] ? 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)) [ 10.523456][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523459][ T236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.523463][ T236] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.523466][ T236] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.523468][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.523474][ T236] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.523476][ T236] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.523478][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523480][ T236] ? 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) [ 10.523483][ T236] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.523485][ T236] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.523488][ T236] vprintk_emit (kernel/printk/printk.c:2479) [ 10.523490][ T236] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.523493][ T236] ? save_trace (kernel/locking/lockdep.c:589) [ 10.523497][ T236] _printk (kernel/printk/printk.c:2504) [ 10.523500][ T236] ? snapshot_read.cold (user.c:?) [ 10.523504][ T236] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.523506][ T236] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.523510][ T236] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.523512][ T236] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.523515][ T236] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.523517][ T236] ? netdev_notice (net/core/dev.c:13194) [ 10.523520][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.523522][ T236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.523525][ T236] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.523528][ T236] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.523530][ T236] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.523532][ T236] ? register_netdev (net/core/dev.c:11618) [ 10.523534][ T236] ? 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)) [ 10.523539][ T236] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.523541][ T236] ? __kernel_text_address (kernel/extable.c:79) [ 10.523544][ T236] ? write_profile (profile.c:?) [ 10.523548][ T236] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.523553][ T236] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.523557][ T236] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.523559][ T236] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.523560][ T236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.523563][ T236] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.523566][ T236] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.523568][ T236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.523570][ T236] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.523572][ T236] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.523574][ T236] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.523575][ T236] ? kasan_save_track (mm/kasan/common.c:78) [ 10.523576][ T236] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.523578][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.523580][ T236] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.523583][ T236] ? ___sys_sendmsg (net/socket.c:2758) [ 10.523587][ T236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.523589][ T236] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.523592][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523593][ T236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.523595][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523596][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523597][ T236] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.523600][ T236] ? __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) [ 10.523602][ T236] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.523604][ T236] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.523607][ T236] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.523608][ T236] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.523613][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523615][ T236] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.523620][ T236] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.523625][ T236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.523627][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.523631][ T236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.523633][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.523635][ T236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.523637][ T236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.523640][ T236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.523642][ T236] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.523645][ T236] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.523646][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.523651][ T236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.523652][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.523656][ T236] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.523659][ T236] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.523662][ T236] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.523668][ T236] ? 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)) [ 10.523670][ T236] ? 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)) [ 10.523674][ T236] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.523678][ T236] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.523680][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.523684][ T236] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.523688][ T236] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.523692][ T236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.523694][ T236] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.523699][ T236] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.523701][ T236] ____sys_sendmsg (net/socket.c:2713) [ 10.523703][ T236] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.523706][ T236] ? sock_write_iter (net/socket.c:1269) [ 10.523707][ T236] ? move_addr_to_kernel (net/socket.c:258) [ 10.523714][ T236] ___sys_sendmsg (net/socket.c:2767) [ 10.523717][ T236] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.523732][ T236] __sys_sendmsg (net/socket.c:2799) [ 10.523735][ T236] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.523741][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.523744][ T236] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.523747][ T236] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.523750][ T236] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.523752][ T236] RIP: 0033:0x7fa54502e54e [ 10.523755][ T236] 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 [ 10.523757][ T236] RSP: 002b:00007ffd5099ed30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.523760][ T236] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fa54502e54e [ 10.523761][ T236] RDX: 0000000000000000 RSI: 00007ffd5099ede0 RDI: 0000000000000005 [ 10.523762][ T236] RBP: 00007ffd5099ed40 R08: 0000000000000000 R09: 0000000000000000 [ 10.523763][ T236] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91477c Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars