====================================== | [ 10.659212][ T239] softirqs last disabled at (14783): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 10.659214][ T239] Preemption disabled at: | [ 10.659215][ T239] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.659224][ T239] Tainted: [W]=WARN [ 10.659224][ T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.659226][ T239] Call Trace: [ 10.659227][ T239] [ 10.659229][ T239] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.659235][ T239] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.659236][ T239] __might_resched.cold (kernel/sched/core.c:9234) [ 10.659241][ T239] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.659245][ T239] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.659249][ T239] __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)) [ 10.659251][ T239] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.659258][ T239] ? 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) [ 10.659260][ T239] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.659264][ T239] put_chars (drivers/char/virtio_console.c:1176) [ 10.659266][ T239] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.659273][ T239] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.659280][ T239] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.659283][ T239] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.659288][ T239] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.659291][ T239] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.659293][ T239] ? 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)) [ 10.659296][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659299][ T239] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.659303][ T239] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.659307][ T239] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.659309][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.659314][ T239] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.659317][ T239] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.659319][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659320][ T239] ? 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) [ 10.659324][ T239] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.659326][ T239] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.659328][ T239] vprintk_emit (kernel/printk/printk.c:2479) [ 10.659331][ T239] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.659336][ T239] _printk (kernel/printk/printk.c:2504) [ 10.659340][ T239] ? snapshot_read.cold (user.c:?) [ 10.659341][ T239] ? __schedule (kernel/sched/core.c:7277) [ 10.659347][ T239] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.659351][ T239] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.659354][ T239] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.659356][ T239] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.659359][ T239] ? netdev_notice (net/core/dev.c:13194) [ 10.659365][ T239] ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12) [ 10.659368][ T239] ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12) [ 10.659371][ T239] ? __local_bh_enable_ip (kernel/softirq.c:478) [ 10.659374][ T239] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.659376][ T239] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.659378][ T239] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 10.659383][ T239] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.659387][ T239] ? __kernel_text_address (kernel/extable.c:79) [ 10.659389][ T239] ? write_profile (profile.c:?) [ 10.659393][ T239] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.659399][ T239] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.659402][ T239] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.659404][ T239] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.659406][ T239] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.659408][ T239] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.659412][ T239] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.659414][ T239] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.659416][ T239] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.659418][ T239] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.659420][ T239] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.659421][ T239] ? kasan_save_track (mm/kasan/common.c:78) [ 10.659422][ T239] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.659424][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.659426][ T239] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.659429][ T239] ? ___sys_sendmsg (net/socket.c:2758) [ 10.659433][ T239] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.659435][ T239] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.659437][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659439][ T239] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.659441][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659442][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659443][ T239] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.659446][ T239] ? __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) [ 10.659447][ T239] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.659449][ T239] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.659452][ T239] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.659453][ T239] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.659458][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659460][ T239] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.659465][ T239] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.659470][ T239] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.659472][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.659477][ T239] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.659479][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.659481][ T239] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.659483][ T239] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.659486][ T239] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.659488][ T239] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.659491][ T239] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.659493][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.659497][ T239] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.659499][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.659502][ T239] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.659505][ T239] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.659508][ T239] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.659515][ T239] ? 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)) [ 10.659517][ T239] ? 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)) [ 10.659521][ T239] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.659525][ T239] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.659527][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.659532][ T239] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.659535][ T239] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.659539][ T239] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.659545][ T239] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.659550][ T239] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.659553][ T239] ____sys_sendmsg (net/socket.c:2713) [ 10.659555][ T239] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.659557][ T239] ? sock_write_iter (net/socket.c:1269) [ 10.659559][ T239] ? move_addr_to_kernel (net/socket.c:258) [ 10.659566][ T239] ___sys_sendmsg (net/socket.c:2767) [ 10.659569][ T239] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.659584][ T239] __sys_sendmsg (net/socket.c:2799) [ 10.659587][ T239] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.659593][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.659597][ T239] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.659600][ T239] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.659602][ T239] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.659604][ T239] RIP: 0033:0x7ff7c1ecd54e [ 10.659608][ T239] 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 [ 10.659610][ T239] RSP: 002b:00007ffc4b6a4e00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.659612][ T239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff7c1ecd54e [ 10.659614][ T239] RDX: 0000000000000000 RSI: 00007ffc4b6a4eb0 RDI: 0000000000000005 [ 10.659615][ T239] RBP: 00007ffc4b6a4e10 R08: 0000000000000000 R09: 0000000000000000 [ 10.659615][ T239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91938d Finger prints: do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars