====================================== | [ 9.151196][ T85] softirqs last disabled at (320956): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.151199][ T85] Preemption disabled at: | [ 9.151199][ T85] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.151207][ T85] Tainted: [W]=WARN [ 9.151208][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.151210][ T85] Call Trace: [ 9.151211][ T85] [ 9.151213][ T85] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.151219][ T85] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.151220][ T85] __might_resched.cold (kernel/sched/core.c:9234) [ 9.151225][ T85] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.151229][ 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) [ 9.151233][ 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)) [ 9.151235][ T85] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.151242][ 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) [ 9.151244][ T85] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.151248][ T85] put_chars (drivers/char/virtio_console.c:1176) [ 9.151250][ T85] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.151253][ T85] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.151258][ T85] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.151262][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151268][ T85] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.151271][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151276][ T85] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.151280][ T85] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.151282][ T85] ? 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)) [ 9.151285][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151287][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.151291][ T85] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.151295][ T85] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.151297][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151302][ T85] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.151305][ T85] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.151307][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151309][ T85] ? 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) [ 9.151312][ T85] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.151314][ T85] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.151317][ T85] vprintk_emit (kernel/printk/printk.c:2479) [ 9.151320][ T85] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.151321][ T85] ? __kernel_text_address (kernel/extable.c:79) [ 9.151324][ T85] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.151328][ T85] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 9.151339][ T85] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.151344][ T85] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.151352][ T85] dev_printk_emit (drivers/base/core.c:5011) [ 9.151354][ T85] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.151358][ T85] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.151363][ T85] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.151369][ T85] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.151371][ T85] ? netdev_notice (net/core/dev.c:13194) [ 9.151374][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.151377][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.151379][ T85] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.151383][ T85] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.151385][ T85] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.151388][ T85] ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.151391][ T85] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.151394][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.151396][ T85] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.151402][ T85] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.151405][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151407][ T85] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.151409][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.151411][ T85] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.151413][ T85] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.151415][ T85] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.151420][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151421][ T85] ? lock_pin_lock (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:6004 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.151423][ T85] ? __lock_acquire (kernel/locking/lockdep.c:433 kernel/locking/lockdep.c:5242) [ 9.151426][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.151428][ T85] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.151431][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151433][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.151434][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151435][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151437][ T85] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.151442][ 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) [ 9.151445][ T85] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.151447][ T85] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.151448][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.151451][ T85] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.151452][ T85] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.151456][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151460][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.151467][ T85] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.151470][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.151471][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151493][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.151495][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.151498][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.151500][ T85] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.151502][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151506][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.151508][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.151510][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.151512][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.151515][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.151517][ T85] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.151521][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.151522][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151526][ T85] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.151528][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.151532][ T85] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.151535][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.151538][ T85] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.151544][ 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)) [ 9.151546][ 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)) [ 9.151550][ T85] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.151554][ T85] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.151558][ T85] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.151561][ T85] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.151565][ T85] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.151567][ T85] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.151569][ T85] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.151574][ T85] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.151577][ T85] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 9.151581][ T85] __sys_sendto (net/socket.c:2281) [ 9.151583][ T85] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.151597][ T85] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.151599][ T85] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.151603][ T85] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.151605][ T85] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.151608][ T85] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.151610][ T85] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.151612][ T85] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.151614][ T85] RIP: 0033:0x7f5b2e75054e [ 9.151618][ 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 [ 9.151620][ T85] RSP: 002b:00007fff04c55030 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.151623][ T85] RAX: ffffffffffffffda RBX: 00005585d85bf010 RCX: 00007f5b2e75054e [ 9.151624][ T85] RDX: 0000000000000030 RSI: 00005585d85be150 RDI: 0000000000000016 [ 9.151625][ T85] RBP: 00007fff04c55040 R08: 00007fff04c55090 R09: 0000000000000080 [ 9.151625][ T85] R10: 0000000000000000 R11: 0000000000000202 R12: 00005585d8714080 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars