====================================== | [ 9.599358][ T211] softirqs last disabled at (16352): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.599360][ T211] Preemption disabled at: | [ 9.599361][ T211] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.599369][ T211] Tainted: [W]=WARN [ 9.599370][ T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.599372][ T211] Call Trace: [ 9.599373][ T211] [ 9.599375][ T211] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.599380][ T211] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.599382][ T211] __might_resched.cold (kernel/sched/core.c:9234) [ 9.599387][ T211] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.599391][ T211] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.599395][ T211] __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)) [ 9.599397][ T211] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.599404][ T211] ? 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) [ 9.599407][ T211] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.599410][ T211] put_chars (drivers/char/virtio_console.c:1176) [ 9.599413][ T211] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.599417][ T211] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.599421][ T211] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.599425][ T211] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.599427][ T211] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.599429][ T211] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.599433][ T211] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.599435][ T211] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 9.599439][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599441][ T211] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.599445][ T211] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.599449][ T211] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.599451][ T211] ? 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)) [ 9.599454][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599458][ T211] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.599462][ T211] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.599466][ T211] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.599468][ T211] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.599473][ T211] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.599476][ T211] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.599478][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599480][ T211] ? 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) [ 9.599483][ T211] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.599485][ T211] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.599488][ T211] vprintk_emit (kernel/printk/printk.c:2479) [ 9.599491][ T211] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.599492][ T211] ? write_profile (profile.c:?) [ 9.599495][ T211] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.599501][ T211] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.599506][ T211] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.599511][ T211] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.599516][ T211] dev_printk_emit (drivers/base/core.c:5011) [ 9.599518][ T211] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.599522][ T211] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.599528][ T211] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.599534][ T211] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.599536][ T211] ? netdev_notice (net/core/dev.c:13194) [ 9.599539][ T211] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.599542][ T211] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.599544][ T211] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.599548][ T211] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.599550][ T211] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.599552][ T211] ? 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)) [ 9.599558][ T211] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.599560][ T211] ? write_profile (profile.c:?) [ 9.599563][ T211] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.599569][ T211] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.599572][ T211] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 9.599574][ T211] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.599575][ T211] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 9.599578][ T211] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 9.599581][ T211] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.599583][ T211] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.599585][ T211] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.599587][ T211] ? kasan_save_stack (mm/kasan/common.c:58) [ 9.599589][ T211] ? kasan_save_stack (mm/kasan/common.c:57) [ 9.599591][ T211] ? kasan_save_track (mm/kasan/common.c:78) [ 9.599592][ T211] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 9.599594][ T211] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.599596][ T211] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 9.599599][ T211] ? ___sys_sendmsg (net/socket.c:2758) [ 9.599603][ T211] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.599604][ T211] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.599607][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599609][ T211] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.599610][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599611][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599613][ T211] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.599615][ T211] ? __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) [ 9.599618][ T211] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.599620][ T211] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.599623][ T211] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.599624][ T211] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.599629][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599631][ T211] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 9.599636][ T211] rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.599642][ T211] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.599644][ T211] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.599648][ T211] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.599650][ T211] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.599652][ T211] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.599654][ T211] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.599657][ T211] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.599659][ T211] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.599663][ T211] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.599664][ T211] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.599668][ T211] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.599670][ T211] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.599674][ T211] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.599677][ T211] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.599680][ T211] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.599686][ T211] ? 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)) [ 9.599688][ T211] ? 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)) [ 9.599693][ T211] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.599697][ T211] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.599699][ T211] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.599704][ T211] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.599708][ T211] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.599712][ T211] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.599713][ T211] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 9.599719][ T211] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.599721][ T211] ____sys_sendmsg (net/socket.c:2713) [ 9.599724][ T211] ? copy_msghdr_from_user (net/socket.c:2650) [ 9.599726][ T211] ? sock_write_iter (net/socket.c:1269) [ 9.599727][ T211] ? move_addr_to_kernel (net/socket.c:258) [ 9.599735][ T211] ___sys_sendmsg (net/socket.c:2767) [ 9.599738][ T211] ? copy_msghdr_from_user (net/socket.c:2619) [ 9.599754][ T211] __sys_sendmsg (net/socket.c:2799) [ 9.599757][ T211] ? __sys_sendmsg_sock (net/socket.c:2780) [ 9.599763][ T211] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.599766][ T211] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.599769][ T211] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.599772][ T211] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.599774][ T211] RIP: 0033:0x7f83fe29854e [ 9.599778][ T211] 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 [ 9.599779][ T211] RSP: 002b:00007ffc2b0173a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.599782][ T211] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f83fe29854e [ 9.599783][ T211] RDX: 0000000000000000 RSI: 00007ffc2b017450 RDI: 0000000000000005 [ 9.599784][ T211] RBP: 00007ffc2b0173b0 R08: 0000000000000000 R09: 0000000000000000 [ 9.599785][ T211] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914b7a Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars