====================================== | [ 8.838818][ T85] softirqs last disabled at (375654): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.838820][ T85] Preemption disabled at: | [ 8.838821][ T85] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.838831][ T85] Tainted: [W]=WARN [ 8.838832][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.838834][ T85] Call Trace: [ 8.838835][ T85] [ 8.838837][ T85] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.838842][ T85] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.838844][ T85] __might_resched.cold (kernel/sched/core.c:9234) [ 8.838849][ T85] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.838853][ T85] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.838858][ T85] __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)) [ 8.838860][ T85] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.838866][ T85] ? 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) [ 8.838868][ T85] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.838871][ T85] put_chars (drivers/char/virtio_console.c:1176) [ 8.838874][ T85] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.838877][ T85] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.838882][ T85] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.838885][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.838890][ T85] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.838892][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.838899][ T85] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.838903][ T85] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.838907][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.838909][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.838913][ T85] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.838917][ T85] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.838921][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.838926][ T85] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.838929][ T85] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.838931][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.838933][ T85] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.838936][ T85] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.838938][ T85] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.838941][ T85] vprintk_emit (kernel/printk/printk.c:2479) [ 8.838944][ T85] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.838947][ T85] ? write_profile (profile.c:?) [ 8.838950][ T85] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.838956][ T85] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.838961][ T85] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.838966][ T85] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 8.838972][ T85] dev_printk_emit (drivers/base/core.c:5011) [ 8.838974][ T85] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.838978][ T85] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.838983][ T85] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.838989][ T85] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.838991][ T85] ? netdev_notice (net/core/dev.c:13194) [ 8.838994][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.838998][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.839000][ T85] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.839003][ T85] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.839006][ T85] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.839009][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839011][ T85] ? 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) [ 8.839013][ T85] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 8.839016][ T85] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.839019][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.839022][ T85] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.839028][ T85] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.839031][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839033][ T85] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.839035][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.839036][ T85] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.839039][ T85] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.839041][ T85] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.839045][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839050][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.839051][ T85] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.839054][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.839057][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.839058][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.839059][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.839062][ T85] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.839064][ T85] ? __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) [ 8.839068][ T85] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.839069][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839071][ T85] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.839073][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.839075][ T85] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.839077][ T85] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.839083][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.839086][ T85] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 8.839094][ T85] rtnl_setlink (net/core/rtnetlink.c:3596) [ 8.839098][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.839099][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839122][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.839124][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.839127][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.839129][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.839131][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839135][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.839137][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.839139][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.839141][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.839145][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.839147][ T85] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.839151][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.839153][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839157][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.839158][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.839163][ T85] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.839166][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.839169][ T85] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.839176][ T85] ? 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)) [ 8.839178][ T85] ? 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)) [ 8.839183][ T85] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.839187][ T85] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.839190][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.839192][ T85] ? 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) [ 8.839196][ T85] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.839200][ T85] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.839204][ T85] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.839207][ T85] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.839211][ T85] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 8.839215][ T85] ? __ia32_sys_getpeername (net/socket.c:2235) [ 8.839225][ T85] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 8.839236][ T85] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 8.839239][ T85] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 8.839243][ T85] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 8.839244][ T85] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 8.839246][ T85] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.839247][ T85] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.839250][ T85] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.839252][ T85] RIP: 0033:0x7f0c9a9ad54e [ 8.839256][ T85] 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 [ 8.839258][ T85] RSP: 002b:00007ffe44a1a2a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 8.839261][ T85] RAX: ffffffffffffffda RBX: 00005572fd6aaf40 RCX: 00007f0c9a9ad54e [ 8.839262][ T85] RDX: 0000000000000030 RSI: 00005572fd7ff250 RDI: 000000000000001a [ 8.839263][ T85] RBP: 00007ffe44a1a2b0 R08: 00007ffe44a1a300 R09: 0000000000000080 [ 8.839264][ T85] R10: 0000000000000000 R11: 0000000000000202 R12: 00005572fd80a6e0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars