====================================== | [ 9.295405][ T220] softirqs last disabled at (0): 0x0 | [ 9.295406][ T220] Preemption disabled at: | [ 9.295407][ T220] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.295417][ T220] Tainted: [W]=WARN [ 9.295418][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.295419][ T220] Call Trace: [ 9.295421][ T220] [ 9.295422][ T220] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.295427][ T220] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.295429][ T220] __might_resched.cold (kernel/sched/core.c:9234) [ 9.295432][ T220] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.295436][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295438][ T220] __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)) [ 9.295441][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.295444][ T220] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.295449][ T220] ? 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) [ 9.295451][ T220] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.295453][ T220] put_chars (drivers/char/virtio_console.c:1176) [ 9.295455][ T220] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.295456][ T220] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 9.295458][ T220] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 9.295460][ T220] ? pointer (lib/vsprintf.c:2577) [ 9.295463][ T220] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.295468][ T220] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.295469][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.295471][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295474][ T220] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.295476][ T220] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.295478][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295479][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295480][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295481][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295483][ T220] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 9.295485][ T220] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.295487][ T220] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.295490][ T220] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.295491][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295493][ T220] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.295495][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295495][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.295497][ T220] ? 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) [ 9.295498][ T220] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6)) [ 9.295500][ T220] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.295502][ T220] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.295503][ T220] vprintk_emit (kernel/printk/printk.c:2479) [ 9.295504][ T220] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.295506][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295507][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295509][ T220] _printk (kernel/printk/printk.c:2504) [ 9.295511][ T220] ? snapshot_read.cold (user.c:?) [ 9.295513][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295514][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295515][ T220] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 9.295519][ T220] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 9.295521][ T220] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.295524][ T220] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.295526][ T220] ? netdev_notice (net/core/dev.c:13194) [ 9.295528][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.295529][ T220] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.295531][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.295533][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295534][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295535][ T220] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.295537][ T220] ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22)) [ 9.295539][ T220] ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/preemptirq.h:40) [ 9.295540][ T220] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.295541][ T220] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.295543][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295544][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.295546][ T220] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.295549][ T220] ? __kernel_text_address (kernel/extable.c:79) [ 9.295551][ T220] ? write_profile (profile.c:?) [ 9.295554][ T220] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.295558][ T220] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.295559][ T220] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 9.295561][ T220] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.295562][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295563][ T220] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676) [ 9.295566][ T220] ? kasan_save_stack (mm/kasan/common.c:58) [ 9.295568][ T220] ? kasan_save_stack (mm/kasan/common.c:57) [ 9.295569][ T220] ? kasan_save_track (mm/kasan/common.c:78) [ 9.295570][ T220] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 9.295571][ T220] ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563) [ 9.295572][ T220] ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1)) [ 9.295573][ T220] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.295574][ T220] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.295577][ T220] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.295579][ T220] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.295580][ T220] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.295582][ T220] ? ____sys_sendmsg (net/socket.c:2713) [ 9.295583][ T220] ? ___sys_sendmsg (net/socket.c:2767) [ 9.295585][ T220] ? __sys_sendmsg (net/socket.c:2799) [ 9.295586][ T220] ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.295589][ T220] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.295591][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295592][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295593][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295594][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295595][ T220] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.295597][ T220] ? __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) [ 9.295598][ T220] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.295599][ T220] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 9.295601][ T220] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.295602][ T220] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.295605][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295606][ T220] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 9.295608][ T220] rtnl_newlink (net/core/rtnetlink.c:4215) [ 9.295610][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295611][ T220] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.295613][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295614][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295615][ T220] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 9.295618][ T220] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.295619][ T220] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.295620][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295621][ T220] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.295625][ T220] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 9.295627][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295628][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295629][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295630][ T220] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 9.295632][ T220] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.295633][ T220] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.295635][ T220] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.295636][ T220] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676) [ 9.295638][ T220] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.295640][ T220] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.295641][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.295643][ T220] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.295644][ T220] ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499) [ 9.295647][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295648][ T220] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.295650][ T220] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.295653][ T220] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.295654][ T220] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.295656][ T220] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.295658][ T220] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.295660][ T220] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.295661][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.295663][ T220] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 9.295666][ T220] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.295668][ T220] ____sys_sendmsg (net/socket.c:2713) [ 9.295669][ T220] ? copy_msghdr_from_user (net/socket.c:2650) [ 9.295671][ T220] ? sock_write_iter (net/socket.c:1269) [ 9.295672][ T220] ? move_addr_to_kernel (net/socket.c:258) [ 9.295674][ T220] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.295676][ T220] ___sys_sendmsg (net/socket.c:2767) [ 9.295678][ T220] ? copy_msghdr_from_user (net/socket.c:2619) [ 9.295683][ T220] __sys_sendmsg (net/socket.c:2799) [ 9.295684][ T220] ? __sys_sendmsg_sock (net/socket.c:2780) [ 9.295687][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.295688][ T220] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.295690][ T220] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.295692][ T220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.295693][ T220] RIP: 0033:0x7f2c7aed254e [ 9.295695][ T220] 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 [ 9.295697][ T220] RSP: 002b:00007fff9349bb10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.295700][ T220] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2c7aed254e [ 9.295702][ T220] RDX: 0000000000000000 RSI: 00007fff9349bbc0 RDI: 0000000000000005 [ 9.295703][ T220] RBP: 00007fff9349bb20 R08: 0000000000000000 R09: 0000000000000000 [ 9.295703][ T220] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910763 Finger prints: vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print