====================================== | [ 8.777948][ T87] softirqs last disabled at (368190): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.777950][ T87] Preemption disabled at: | [ 8.777951][ T87] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.777960][ T87] Tainted: [W]=WARN [ 8.777961][ T87] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.777962][ T87] Call Trace: [ 8.777964][ T87] [ 8.777966][ T87] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.777971][ T87] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.777973][ T87] __might_resched.cold (kernel/sched/core.c:9234) [ 8.777978][ T87] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.777982][ T87] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.777987][ T87] __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)) [ 8.777989][ T87] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.777994][ T87] ? 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) [ 8.777997][ T87] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.778000][ T87] put_chars (drivers/char/virtio_console.c:1176) [ 8.778003][ T87] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.778006][ T87] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.778011][ T87] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.778013][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778018][ T87] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.778021][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778027][ T87] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.778031][ T87] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.778035][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778037][ T87] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.778041][ T87] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.778045][ T87] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.778046][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778052][ T87] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.778054][ T87] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.778056][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778058][ T87] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.778061][ T87] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.778063][ T87] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.778066][ T87] vprintk_emit (kernel/printk/printk.c:2479) [ 8.778069][ T87] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.778071][ T87] ? write_profile (profile.c:?) [ 8.778074][ T87] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.778081][ T87] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.778086][ T87] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.778091][ T87] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 8.778097][ T87] dev_printk_emit (drivers/base/core.c:5011) [ 8.778099][ T87] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.778105][ T87] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.778110][ T87] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.778116][ T87] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.778118][ T87] ? netdev_notice (net/core/dev.c:13194) [ 8.778120][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.778124][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.778126][ T87] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.778129][ T87] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.778132][ T87] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.778135][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778136][ T87] ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898) [ 8.778139][ T87] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 8.778142][ T87] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.778144][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.778147][ T87] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.778153][ T87] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.778156][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778159][ T87] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.778160][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.778162][ T87] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.778164][ T87] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.778166][ T87] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.778171][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778175][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.778177][ T87] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.778179][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778182][ T87] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.778183][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778184][ T87] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.778186][ T87] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.778189][ T87] ? __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) [ 8.778192][ T87] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.778193][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778195][ T87] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.778198][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.778200][ T87] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.778202][ T87] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.778208][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.778211][ T87] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 8.778223][ T87] rtnl_setlink (net/core/rtnetlink.c:3596) [ 8.778227][ T87] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.778228][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778251][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.778252][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.778256][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.778257][ T87] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.778259][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778263][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.778265][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.778267][ T87] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.778269][ T87] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.778273][ T87] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.778275][ T87] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.778278][ T87] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.778280][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778284][ T87] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.778286][ T87] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.778290][ T87] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.778293][ T87] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.778296][ T87] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.778303][ T87] ? 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)) [ 8.778304][ T87] ? 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)) [ 8.778309][ T87] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.778313][ T87] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.778316][ T87] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.778318][ T87] ? do_raw_spin_trylock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:93 kernel/locking/spinlock_debug.c:123) [ 8.778321][ T87] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.778325][ T87] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.778329][ T87] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.778333][ T87] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.778336][ T87] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 8.778340][ T87] ? __ia32_sys_getpeername (net/socket.c:2235) [ 8.778350][ T87] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 8.778357][ T87] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 8.778358][ T87] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 8.778362][ T87] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 8.778364][ T87] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 8.778365][ T87] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.778367][ T87] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.778369][ T87] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.778371][ T87] RIP: 0033:0x7ffa36a1f54e [ 8.778375][ T87] 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 [ 8.778377][ T87] RSP: 002b:00007ffd4201a000 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 8.778379][ T87] RAX: ffffffffffffffda RBX: 00005569d10d8ff0 RCX: 00007ffa36a1f54e [ 8.778381][ T87] RDX: 0000000000000030 RSI: 00005569d10d8cb0 RDI: 000000000000001c [ 8.778382][ T87] RBP: 00007ffd4201a010 R08: 00007ffd4201a060 R09: 0000000000000080 [ 8.778382][ T87] R10: 0000000000000000 R11: 0000000000000202 R12: 00005569d122c4b0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars