====================================== | [ 295.460078][ T1487] softirqs last disabled at (21862): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 295.460080][ T1487] Preemption disabled at: | [ 295.460081][ T1487] vprintk_emit (kernel/printk/printk.c:2471) | [ 295.460090][ T1487] Tainted: [W]=WARN [ 295.460091][ T1487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 295.460093][ T1487] Call Trace: [ 295.460094][ T1487] [ 295.460096][ T1487] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 295.460102][ T1487] ? vprintk_emit (kernel/printk/printk.c:2471) [ 295.460104][ T1487] __might_resched.cold (kernel/sched/core.c:9234) [ 295.460109][ T1487] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 295.460113][ T1487] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 295.460118][ T1487] __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)) [ 295.460120][ T1487] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 295.460127][ T1487] ? 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) [ 295.460129][ T1487] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 295.460133][ T1487] put_chars (drivers/char/virtio_console.c:1176) [ 295.460136][ T1487] ? __send_to_port (drivers/char/virtio_console.c:654) [ 295.460138][ T1487] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 295.460142][ T1487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 295.460145][ T1487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 295.460149][ T1487] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 295.460153][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460154][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460159][ T1487] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 295.460162][ T1487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 295.460165][ T1487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 295.460169][ T1487] console_emit_next_record (kernel/printk/printk.c:3183) [ 295.460173][ T1487] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 295.460178][ T1487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 295.460180][ T1487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 295.460184][ T1487] console_flush_one_record (kernel/printk/printk.c:3268) [ 295.460188][ T1487] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 295.460190][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460199][ T1487] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 295.460203][ T1487] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 295.460205][ T1487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 295.460208][ T1487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 295.460211][ T1487] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 295.460213][ T1487] ? vprintk_emit (kernel/printk/printk.c:2478) [ 295.460216][ T1487] vprintk_emit (kernel/printk/printk.c:2479) [ 295.460220][ T1487] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 295.460222][ T1487] ? add_chain_block (kernel/locking/lockdep.c:3418 kernel/locking/lockdep.c:3461) [ 295.460224][ T1487] ? static_obj (kernel/locking/lockdep.c:868 (discriminator 1)) [ 295.460228][ T1487] dev_vprintk_emit (drivers/base/core.c:5000) [ 295.460234][ T1487] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 295.460238][ T1487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 295.460240][ T1487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 295.460244][ T1487] dev_printk_emit (drivers/base/core.c:5011) [ 295.460247][ T1487] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 295.460250][ T1487] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 295.460253][ T1487] ? __kernel_text_address (kernel/extable.c:79) [ 295.460255][ T1487] ? write_profile (profile.c:?) [ 295.460257][ T1487] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 295.460260][ T1487] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 295.460265][ T1487] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 295.460271][ T1487] netdev_warn (net/core/dev.c:13193 (discriminator 3)) [ 295.460274][ T1487] ? netdev_err (net/core/dev.c:13192) [ 295.460278][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460279][ T1487] ? add_chain_block (kernel/locking/lockdep.c:3418 kernel/locking/lockdep.c:3461) [ 295.460281][ T1487] ? static_obj (kernel/locking/lockdep.c:868 (discriminator 1)) [ 295.460284][ T1487] ? do_trace_netlink_extack (./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/netlink.h:9 net/netlink/af_netlink.c:157) [ 295.460289][ T1487] virtnet_xdp_set.cold (drivers/net/virtio_net.c:6050) [ 295.460293][ T1487] ? mark_usage (kernel/locking/lockdep.c:4690) [ 295.460295][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460297][ T1487] ? add_chain_block (kernel/locking/lockdep.c:3418 kernel/locking/lockdep.c:3461) [ 295.460299][ T1487] ? static_obj (kernel/locking/lockdep.c:868 (discriminator 1)) [ 295.460302][ T1487] ? bpf_prog_inc (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:2013 kernel/bpf/syscall.c:2632) [ 295.460305][ T1487] dev_xdp_install (net/core/dev.c:10442) [ 295.460308][ T1487] ? virtnet_xdp_set (./include/linux/virtio_features.h:40 (discriminator 2)) [ 295.460312][ T1487] ? mark_usage (kernel/locking/lockdep.c:4690) [ 295.460314][ T1487] ? netdev_pick_tx (./include/net/sock.h:2045 (discriminator 2)) [ 295.460321][ T1487] dev_xdp_attach (net/core/dev.c:10570) [ 295.460327][ T1487] ? __bpf_prog_get (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:2013 kernel/bpf/syscall.c:2632 kernel/bpf/syscall.c:2680) [ 295.460330][ T1487] ? bpf_xdp_link_update (./include/net/netdev_lock.h:33) [ 295.460332][ T1487] ? __bpf_prog_get (kernel/bpf/syscall.c:2632) [ 295.460336][ T1487] dev_change_xdp_fd (net/core/dev.c:10825) [ 295.460340][ T1487] do_setlink.isra.0 (net/core/rtnetlink.c:3500 (discriminator 1)) [ 295.460344][ T1487] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 295.460346][ T1487] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 295.460348][ T1487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 295.460350][ T1487] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 295.460353][ T1487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 295.460356][ T1487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 295.460358][ T1487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 295.460361][ T1487] ? kasan_save_stack (mm/kasan/common.c:58) [ 295.460364][ T1487] ? kasan_save_stack (mm/kasan/common.c:57) [ 295.460365][ T1487] ? kasan_save_track (mm/kasan/common.c:78) [ 295.460368][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460370][ T1487] ? netlink_has_listeners (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:1377 (discriminator 2)) [ 295.460373][ T1487] ? ___sys_sendmsg (net/socket.c:2758 (discriminator 1)) [ 295.460380][ T1487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 295.460382][ T1487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 295.460383][ T1487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 295.460386][ T1487] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 295.460389][ T1487] ? __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) [ 295.460393][ T1487] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 295.460395][ T1487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 295.460398][ T1487] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 295.460400][ T1487] ? nla_get_range_signed (lib/nlattr.c:270) [ 295.460406][ T1487] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 295.460411][ T1487] rtnl_newlink (net/core/rtnetlink.c:4215) [ 295.460417][ T1487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 295.460419][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460423][ T1487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 295.460425][ T1487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 295.460427][ T1487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 295.460429][ T1487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 295.460433][ T1487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 295.460435][ T1487] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 295.460438][ T1487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 295.460440][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460444][ T1487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 295.460446][ T1487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 295.460449][ T1487] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 295.460451][ T1487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 295.460454][ T1487] ? netlink_ack (./include/linux/skbuff.h:2718) [ 295.460461][ T1487] ? 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)) [ 295.460462][ T1487] ? 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)) [ 295.460467][ T1487] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 295.460471][ T1487] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 295.460474][ T1487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 295.460478][ T1487] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 295.460482][ T1487] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 295.460486][ T1487] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 295.460491][ T1487] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 295.460494][ T1487] ? copy_msghdr_from_user (net/socket.c:2650) [ 295.460496][ T1487] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 295.460498][ T1487] ? move_addr_to_kernel (net/socket.c:258) [ 295.460506][ T1487] ___sys_sendmsg (net/socket.c:2767) [ 295.460509][ T1487] ? copy_msghdr_from_user (net/socket.c:2619) [ 295.460524][ T1487] __sys_sendmsg (net/socket.c:2799) [ 295.460527][ T1487] ? __sys_sendmsg_sock (net/socket.c:2780) [ 295.460532][ T1487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 295.460536][ T1487] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 295.460539][ T1487] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 295.460542][ T1487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 295.460544][ T1487] RIP: 0033:0x7f10d203254e [ 295.460548][ T1487] 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 [ 295.460550][ T1487] RSP: 002b:00007ffda484ffa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 295.460553][ T1487] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f10d203254e [ 295.460554][ T1487] RDX: 0000000000000000 RSI: 00007ffda4850050 RDI: 0000000000000003 [ 295.460555][ T1487] RBP: 00007ffda484ffb0 R08: 0000000000000000 R09: 0000000000000000 [ 295.460556][ T1487] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90df62 Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars