====================================== | [ 8.796091][ T88] softirqs last disabled at (473254): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.796093][ T88] Preemption disabled at: | [ 8.796094][ T88] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.796105][ T88] Tainted: [W]=WARN [ 8.796106][ T88] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.796108][ T88] Call Trace: [ 8.796109][ T88] [ 8.796111][ T88] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.796116][ T88] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.796118][ T88] __might_resched.cold (kernel/sched/core.c:9234) [ 8.796122][ T88] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.796126][ T88] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.796130][ T88] __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)) [ 8.796132][ T88] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.796138][ T88] ? 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) [ 8.796140][ T88] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.796143][ T88] put_chars (drivers/char/virtio_console.c:1176) [ 8.796146][ T88] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.796149][ T88] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.796154][ T88] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.796156][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796161][ T88] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.796164][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.796170][ T88] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.796173][ T88] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.796178][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.796180][ T88] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.796183][ T88] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.796187][ T88] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.796189][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796194][ T88] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.796196][ T88] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.796198][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.796200][ T88] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.796203][ T88] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.796205][ T88] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.796208][ T88] vprintk_emit (kernel/printk/printk.c:2479) [ 8.796211][ T88] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.796213][ T88] ? write_profile (profile.c:?) [ 8.796216][ T88] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.796223][ T88] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.796227][ T88] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.796232][ T88] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 8.796238][ T88] dev_printk_emit (drivers/base/core.c:5011) [ 8.796240][ T88] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.796244][ T88] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.796249][ T88] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.796254][ T88] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.796256][ T88] ? netdev_notice (net/core/dev.c:13194) [ 8.796259][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.796263][ T88] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.796265][ T88] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.796268][ T88] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.796271][ T88] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.796273][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796275][ T88] ? 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) [ 8.796277][ T88] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 8.796280][ T88] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.796283][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.796286][ T88] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.796292][ T88] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.796294][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796297][ T88] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.796299][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.796300][ T88] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.796302][ T88] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.796305][ T88] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.796309][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796313][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.796315][ T88] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.796317][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.796320][ T88] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.796321][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.796322][ T88] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.796324][ T88] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.796327][ T88] ? __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) [ 8.796330][ T88] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.796331][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796333][ T88] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.796335][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.796338][ T88] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.796339][ T88] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.796345][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.796348][ T88] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 8.796356][ T88] rtnl_setlink (net/core/rtnetlink.c:3596) [ 8.796359][ T88] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.796361][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796384][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.796385][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.796388][ T88] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.796390][ T88] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.796392][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796396][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.796397][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.796400][ T88] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.796402][ T88] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.796405][ T88] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.796408][ T88] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.796411][ T88] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.796413][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796417][ T88] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.796418][ T88] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.796422][ T88] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.796426][ T88] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.796429][ T88] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.796435][ T88] ? 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)) [ 8.796437][ T88] ? 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)) [ 8.796442][ T88] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.796446][ T88] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.796448][ T88] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.796453][ T88] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.796457][ T88] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.796461][ T88] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.796464][ T88] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.796468][ T88] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 8.796471][ T88] ? __ia32_sys_getpeername (net/socket.c:2235) [ 8.796482][ T88] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 8.796487][ T88] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 8.796489][ T88] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 8.796493][ T88] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 8.796495][ T88] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 8.796496][ T88] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.796497][ T88] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.796500][ T88] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.796502][ T88] RIP: 0033:0x7fd9a904654e [ 8.796506][ T88] 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 [ 8.796508][ T88] RSP: 002b:00007fff0d3ef460 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 8.796510][ T88] RAX: ffffffffffffffda RBX: 000055d0a6e8bf40 RCX: 00007fd9a904654e [ 8.796512][ T88] RDX: 0000000000000030 RSI: 000055d0a6fda7a0 RDI: 0000000000000020 [ 8.796512][ T88] RBP: 00007fff0d3ef470 R08: 00007fff0d3ef4c0 R09: 0000000000000080 [ 8.796513][ T88] R10: 0000000000000000 R11: 0000000000000202 R12: 000055d0a6fe5240 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars