====================================== | [ 9.545118][ T89] softirqs last disabled at (353022): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.545121][ T89] Preemption disabled at: | [ 9.545121][ T89] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.545131][ T89] Tainted: [W]=WARN [ 9.545131][ T89] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.545133][ T89] Call Trace: [ 9.545135][ T89] [ 9.545136][ T89] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.545142][ T89] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.545144][ T89] __might_resched.cold (kernel/sched/core.c:9234) [ 9.545148][ T89] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.545153][ T89] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.545157][ T89] __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)) [ 9.545159][ T89] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.545166][ T89] ? 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) [ 9.545168][ T89] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.545172][ T89] put_chars (drivers/char/virtio_console.c:1176) [ 9.545175][ T89] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.545178][ T89] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.545183][ T89] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.545186][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545192][ T89] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.545195][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545200][ T89] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.545204][ T89] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.545206][ T89] ? 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)) [ 9.545209][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545211][ T89] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.545215][ T89] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.545219][ T89] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.545221][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545226][ T89] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.545229][ T89] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.545231][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545233][ T89] ? 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) [ 9.545237][ T89] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.545238][ T89] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.545241][ T89] vprintk_emit (kernel/printk/printk.c:2479) [ 9.545244][ T89] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.545245][ T89] ? __kernel_text_address (kernel/extable.c:79) [ 9.545248][ T89] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.545251][ T89] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 9.545257][ T89] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.545261][ T89] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.545270][ T89] dev_printk_emit (drivers/base/core.c:5011) [ 9.545272][ T89] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.545276][ T89] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.545281][ T89] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.545287][ T89] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.545290][ T89] ? netdev_notice (net/core/dev.c:13194) [ 9.545293][ T89] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.545296][ T89] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.545298][ T89] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.545302][ T89] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.545304][ T89] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.545307][ T89] ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.545310][ T89] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.545313][ T89] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.545316][ T89] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.545322][ T89] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.545325][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545328][ T89] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.545329][ T89] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.545331][ T89] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.545333][ T89] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.545336][ T89] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.545340][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545342][ T89] ? lock_pin_lock (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:6004 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.545344][ T89] ? __lock_acquire (kernel/locking/lockdep.c:433 kernel/locking/lockdep.c:5242) [ 9.545348][ T89] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.545349][ T89] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.545352][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545354][ T89] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.545355][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545357][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545358][ T89] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.545360][ T89] ? __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) [ 9.545363][ T89] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.545365][ T89] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.545367][ T89] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.545370][ T89] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.545371][ T89] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.545380][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545384][ T89] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.545391][ T89] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.545394][ T89] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.545395][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545418][ T89] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.545420][ T89] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.545422][ T89] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.545424][ T89] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.545426][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545431][ T89] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.545433][ T89] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.545435][ T89] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.545437][ T89] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.545440][ T89] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.545442][ T89] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.545445][ T89] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.545447][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545451][ T89] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.545453][ T89] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.545456][ T89] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.545460][ T89] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.545463][ T89] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.545469][ T89] ? 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)) [ 9.545471][ T89] ? 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)) [ 9.545475][ T89] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.545479][ T89] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.545483][ T89] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.545486][ T89] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.545490][ T89] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.545492][ T89] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.545495][ T89] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.545499][ T89] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.545502][ T89] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 9.545506][ T89] __sys_sendto (net/socket.c:2281) [ 9.545509][ T89] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.545523][ T89] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.545527][ T89] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.545531][ T89] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.545533][ T89] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.545536][ T89] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.545538][ T89] ? irq_exit_rcu (kernel/softirq.c:786) [ 9.545542][ T89] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.545544][ T89] RIP: 0033:0x7f61a4acc54e [ 9.545548][ T89] 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 [ 9.545550][ T89] RSP: 002b:00007fff945bf510 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.545552][ T89] RAX: ffffffffffffffda RBX: 0000557a3e4230e0 RCX: 00007f61a4acc54e [ 9.545553][ T89] RDX: 0000000000000030 RSI: 0000557a3e584bd0 RDI: 0000000000000022 [ 9.545554][ T89] RBP: 00007fff945bf520 R08: 00007fff945bf570 R09: 0000000000000080 [ 9.545555][ T89] R10: 0000000000000000 R11: 0000000000000202 R12: 0000557a3e587150 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars