====================================== | [ 34.809677][ T1379] softirqs last disabled at (14450): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 34.809679][ T1379] Preemption disabled at: | [ 34.809680][ T1379] vprintk_emit (kernel/printk/printk.c:2471) | [ 34.809688][ T1379] Tainted: [W]=WARN [ 34.809689][ T1379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.809691][ T1379] Call Trace: [ 34.809692][ T1379] [ 34.809694][ T1379] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.809700][ T1379] ? vprintk_emit (kernel/printk/printk.c:2471) [ 34.809701][ T1379] __might_resched.cold (kernel/sched/core.c:9234) [ 34.809705][ T1379] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.809709][ T1379] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.809714][ T1379] __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)) [ 34.809716][ T1379] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.809722][ T1379] ? 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) [ 34.809725][ T1379] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.809729][ T1379] put_chars (drivers/char/virtio_console.c:1176) [ 34.809731][ T1379] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.809734][ T1379] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 34.809739][ T1379] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.809746][ T1379] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.809749][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809752][ T1379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.809756][ T1379] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.809759][ T1379] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.809761][ T1379] ? 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)) [ 34.809764][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809766][ T1379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.809770][ T1379] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.809774][ T1379] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.809776][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.809781][ T1379] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.809784][ T1379] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.809786][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809787][ T1379] ? 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) [ 34.809791][ T1379] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.809793][ T1379] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.809796][ T1379] vprintk_emit (kernel/printk/printk.c:2479) [ 34.809799][ T1379] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.809800][ T1379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.809802][ T1379] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 34.809806][ T1379] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 34.809810][ T1379] _printk (kernel/printk/printk.c:2504) [ 34.809813][ T1379] ? snapshot_read.cold (user.c:?) [ 34.809816][ T1379] ? br_multicast_flood (??:?) [ 34.809820][ T1379] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 34.809821][ T1379] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 34.809822][ T1379] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 34.809827][ T1379] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.809831][ T1379] br_init_port (net/bridge/br_stp_if.c:39) [ 34.809833][ T1379] new_nbp (net/bridge/br_if.c:449) [ 34.809837][ T1379] br_add_if (net/bridge/br_if.c:592) [ 34.809840][ T1379] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 34.809843][ T1379] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 34.809848][ T1379] do_set_master (net/core/rtnetlink.c:3071) [ 34.809852][ T1379] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 34.809855][ T1379] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 34.809859][ T1379] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 34.809860][ T1379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 34.809862][ T1379] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 34.809866][ T1379] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.809868][ T1379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.809870][ T1379] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.809872][ T1379] ? kasan_save_stack (mm/kasan/common.c:58) [ 34.809874][ T1379] ? kasan_save_stack (mm/kasan/common.c:57) [ 34.809875][ T1379] ? kasan_save_track (mm/kasan/common.c:78) [ 34.809877][ T1379] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 34.809879][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.809881][ T1379] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 34.809884][ T1379] ? ___sys_sendmsg (net/socket.c:2758) [ 34.809887][ T1379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.809889][ T1379] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.809892][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809894][ T1379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.809895][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809896][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809898][ T1379] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 34.809900][ T1379] ? __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) [ 34.809901][ T1379] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 34.809903][ T1379] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.809906][ T1379] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 34.809908][ T1379] ? nla_get_range_signed (lib/nlattr.c:270) [ 34.809912][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.809915][ T1379] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 34.809920][ T1379] rtnl_newlink (net/core/rtnetlink.c:4215) [ 34.809925][ T1379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.809927][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.809931][ T1379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.809933][ T1379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.809935][ T1379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.809937][ T1379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.809941][ T1379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.809943][ T1379] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 34.809946][ T1379] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.809947][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.809952][ T1379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.809954][ T1379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.809957][ T1379] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 34.809960][ T1379] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.809963][ T1379] ? netlink_ack (./include/linux/skbuff.h:2718) [ 34.809969][ T1379] ? 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)) [ 34.809972][ T1379] ? 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)) [ 34.809976][ T1379] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 34.809980][ T1379] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.809982][ T1379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.809987][ T1379] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 34.809990][ T1379] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.809994][ T1379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.809996][ T1379] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 34.810001][ T1379] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 34.810004][ T1379] ____sys_sendmsg (net/socket.c:2713) [ 34.810006][ T1379] ? copy_msghdr_from_user (net/socket.c:2650) [ 34.810008][ T1379] ? sock_write_iter (net/socket.c:1269) [ 34.810010][ T1379] ? move_addr_to_kernel (net/socket.c:258) [ 34.810017][ T1379] ___sys_sendmsg (net/socket.c:2767) [ 34.810020][ T1379] ? copy_msghdr_from_user (net/socket.c:2619) [ 34.810036][ T1379] __sys_sendmsg (net/socket.c:2799) [ 34.810038][ T1379] ? __sys_sendmsg_sock (net/socket.c:2780) [ 34.810045][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.810048][ T1379] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 34.810050][ T1379] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 34.810053][ T1379] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 34.810055][ T1379] RIP: 0033:0x7f60a05dd54e [ 34.810059][ T1379] 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 [ 34.810061][ T1379] RSP: 002b:00007ffccaf96370 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 34.810063][ T1379] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f60a05dd54e [ 34.810065][ T1379] RDX: 0000000000000000 RSI: 00007ffccaf96420 RDI: 0000000000000005 [ 34.810065][ T1379] RBP: 00007ffccaf96380 R08: 0000000000000000 R09: 0000000000000000 [ 34.810066][ T1379] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911b13 Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars